user settings supports language and date&time format

cmd/user_data.go

@@ -398,10 +398,15 @@ func printUserInfo(user *models.User) {
 	fmt.Printf("[Nickname] %s\n", user.Nickname)
 	fmt.Printf("[Password] %s\n", user.Password)
 	fmt.Printf("[Salt] %s\n", user.Salt)
-	fmt.Printf("[DefaultCurrency] %s\n", user.DefaultCurrency)
 	fmt.Printf("[DefaultAccountId] %d\n", user.DefaultAccountId)
-	fmt.Printf("[FirstDayOfWeek] %s\n", user.FirstDayOfWeek)
-	fmt.Printf("[TransactionEditScope] %s\n", user.TransactionEditScope)
+	fmt.Printf("[TransactionEditScope] %s (%d)\n", user.TransactionEditScope, user.TransactionEditScope)
+	fmt.Printf("[Language] %s\n", user.Language)
+	fmt.Printf("[DefaultCurrency] %s\n", user.DefaultCurrency)
+	fmt.Printf("[FirstDayOfWeek] %s (%d)\n", user.FirstDayOfWeek, user.FirstDayOfWeek)
+	fmt.Printf("[LongDateFormat] %s (%d)\n", user.LongDateFormat, user.LongDateFormat)
+	fmt.Printf("[ShortDateFormat] %s (%d)\n", user.ShortDateFormat, user.ShortDateFormat)
+	fmt.Printf("[LongTimeFormat] %s (%d)\n", user.LongTimeFormat, user.LongTimeFormat)
+	fmt.Printf("[ShortTimeFormat] %s (%d)\n", user.ShortTimeFormat, user.ShortTimeFormat)
 	fmt.Printf("[Deleted] %t\n", user.Deleted)
 	fmt.Printf("[EmailVerified] %t\n", user.EmailVerified)
 	fmt.Printf("[CreatedAt] %s (%d)\n", utils.FormatUnixTimeToLongDateTimeInServerTimezone(user.CreatedUnixTime), user.CreatedUnixTime)

pkg/api/users.go

@@ -57,6 +57,7 @@ func (a *UsersApi) UserRegisterHandler(c *core.Context) (interface{}, *errs.Erro
 		Email:                userRegisterReq.Email,
 		Nickname:             userRegisterReq.Nickname,
 		Password:             userRegisterReq.Password,
+		Language:             userRegisterReq.Language,
 		DefaultCurrency:      userRegisterReq.DefaultCurrency,
 		FirstDayOfWeek:       userRegisterReq.FirstDayOfWeek,
 		TransactionEditScope: models.TRANSACTION_EDIT_SCOPE_ALL,
@@ -161,12 +162,6 @@ func (a *UsersApi) UserUpdateProfileHandler(c *core.Context) (interface{}, *errs
 		anythingUpdate = true
 	}
 
-	if userUpdateReq.DefaultCurrency != "" && userUpdateReq.DefaultCurrency != user.DefaultCurrency {
-		user.DefaultCurrency = userUpdateReq.DefaultCurrency
-		userNew.DefaultCurrency = userUpdateReq.DefaultCurrency
-		anythingUpdate = true
-	}
-
 	if userUpdateReq.DefaultAccountId > 0 && userUpdateReq.DefaultAccountId != user.DefaultAccountId {
 		accounts, err := a.accounts.GetAccountsByAccountIds(uid, []int64{userUpdateReq.DefaultAccountId})
 
@@ -179,14 +174,6 @@ func (a *UsersApi) UserUpdateProfileHandler(c *core.Context) (interface{}, *errs
 		anythingUpdate = true
 	}
 
-	if userUpdateReq.FirstDayOfWeek != nil && *userUpdateReq.FirstDayOfWeek != user.FirstDayOfWeek {
-		user.FirstDayOfWeek = *userUpdateReq.FirstDayOfWeek
-		userNew.FirstDayOfWeek = *userUpdateReq.FirstDayOfWeek
-		anythingUpdate = true
-	} else {
-		userNew.FirstDayOfWeek = models.WEEKDAY_INVALID
-	}
-
 	if userUpdateReq.TransactionEditScope != nil && *userUpdateReq.TransactionEditScope != user.TransactionEditScope {
 		user.TransactionEditScope = *userUpdateReq.TransactionEditScope
 		userNew.TransactionEditScope = *userUpdateReq.TransactionEditScope
@@ -195,11 +182,66 @@ func (a *UsersApi) UserUpdateProfileHandler(c *core.Context) (interface{}, *errs
 		userNew.TransactionEditScope = models.TRANSACTION_EDIT_SCOPE_INVALID
 	}
 
+	modifyUserLanguage := false
+
+	if userUpdateReq.Language != user.Language {
+		user.Language = userUpdateReq.Language
+		userNew.Language = userUpdateReq.Language
+		modifyUserLanguage = true
+		anythingUpdate = true
+	}
+
+	if userUpdateReq.DefaultCurrency != "" && userUpdateReq.DefaultCurrency != user.DefaultCurrency {
+		user.DefaultCurrency = userUpdateReq.DefaultCurrency
+		userNew.DefaultCurrency = userUpdateReq.DefaultCurrency
+		anythingUpdate = true
+	}
+
+	if userUpdateReq.FirstDayOfWeek != nil && *userUpdateReq.FirstDayOfWeek != user.FirstDayOfWeek {
+		user.FirstDayOfWeek = *userUpdateReq.FirstDayOfWeek
+		userNew.FirstDayOfWeek = *userUpdateReq.FirstDayOfWeek
+		anythingUpdate = true
+	} else {
+		userNew.FirstDayOfWeek = models.WEEKDAY_INVALID
+	}
+
+	if userUpdateReq.LongDateFormat != nil && *userUpdateReq.LongDateFormat != user.LongDateFormat {
+		user.LongDateFormat = *userUpdateReq.LongDateFormat
+		userNew.LongDateFormat = *userUpdateReq.LongDateFormat
+		anythingUpdate = true
+	} else {
+		userNew.LongDateFormat = models.LONG_DATE_FORMAT_INVALID
+	}
+
+	if userUpdateReq.ShortDateFormat != nil && *userUpdateReq.ShortDateFormat != user.ShortDateFormat {
+		user.ShortDateFormat = *userUpdateReq.ShortDateFormat
+		userNew.ShortDateFormat = *userUpdateReq.ShortDateFormat
+		anythingUpdate = true
+	} else {
+		userNew.ShortDateFormat = models.SHORT_DATE_FORMAT_INVALID
+	}
+
+	if userUpdateReq.LongTimeFormat != nil && *userUpdateReq.LongTimeFormat != user.LongTimeFormat {
+		user.LongTimeFormat = *userUpdateReq.LongTimeFormat
+		userNew.LongTimeFormat = *userUpdateReq.LongTimeFormat
+		anythingUpdate = true
+	} else {
+		userNew.LongTimeFormat = models.LONG_TIME_FORMAT_INVALID
+	}
+
+	if userUpdateReq.ShortTimeFormat != nil && *userUpdateReq.ShortTimeFormat != user.ShortTimeFormat {
+		user.ShortTimeFormat = *userUpdateReq.ShortTimeFormat
+		userNew.ShortTimeFormat = *userUpdateReq.ShortTimeFormat
+		anythingUpdate = true
+	} else {
+		userNew.ShortTimeFormat = models.SHORT_TIME_FORMAT_INVALID
+	}
+
 	if !anythingUpdate {
 		return nil, errs.ErrNothingWillBeUpdated
 	}
 
-	keyProfileUpdated, err := a.users.UpdateUser(userNew)
+	keyProfileUpdated, err := a.users.UpdateUser(userNew, modifyUserLanguage)
 
 	if err != nil {
 		log.ErrorfWithRequestId(c, "[users.UserUpdateProfileHandler] failed to update user \"uid:%d\", because %s", user.Uid, err.Error())

pkg/cli/user_data.go

@@ -142,7 +142,7 @@ func (l *UserDataCli) ModifyUserPassword(c *cli.Context, username string, passwo
 		Password: password,
 	}
 
-	_, err = l.users.UpdateUser(userNew)
+	_, err = l.users.UpdateUser(userNew, false)
 
 	if err != nil {
 		log.BootErrorf("[user_data.ModifyUserPassword] failed to update user \"%s\" password, because %s", user.Username, err.Error())

pkg/models/datetime.go

@@ -0,0 +1,162 @@
+package models
+
+import "fmt"
+
+// WeekDay represents week day
+type WeekDay byte
+
+// Week days
+const (
+	WEEKDAY_SUNDAY    WeekDay = 0
+	WEEKDAY_MONDAY    WeekDay = 1
+	WEEKDAY_TUESDAY   WeekDay = 2
+	WEEKDAY_WEDNESDAY WeekDay = 3
+	WEEKDAY_THURSDAY  WeekDay = 4
+	WEEKDAY_FRIDAY    WeekDay = 5
+	WEEKDAY_SATURDAY  WeekDay = 6
+	WEEKDAY_INVALID   WeekDay = 255
+)
+
+// String returns a textual representation of the week day enum
+func (d WeekDay) String() string {
+	switch d {
+	case WEEKDAY_SUNDAY:
+		return "Sunday"
+	case WEEKDAY_MONDAY:
+		return "Monday"
+	case WEEKDAY_TUESDAY:
+		return "Tuesday"
+	case WEEKDAY_WEDNESDAY:
+		return "Wednesday"
+	case WEEKDAY_THURSDAY:
+		return "Thursday"
+	case WEEKDAY_FRIDAY:
+		return "Friday"
+	case WEEKDAY_SATURDAY:
+		return "Saturday"
+	case WEEKDAY_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(d))
+	}
+}
+
+// LongDateFormat represents long date format
+type LongDateFormat byte
+
+// Long Date Format
+const (
+	LONG_DATE_FORMAT_DEFAULT  LongDateFormat = 0
+	LONG_DATE_FORMAT_YYYY_M_D LongDateFormat = 1
+	LONG_DATE_FORMAT_M_D_YYYY LongDateFormat = 2
+	LONG_DATE_FORMAT_D_M_YYYY LongDateFormat = 3
+	LONG_DATE_FORMAT_INVALID  LongDateFormat = 255
+)
+
+// String returns a textual representation of the long date format enum
+func (f LongDateFormat) String() string {
+	switch f {
+	case LONG_DATE_FORMAT_DEFAULT:
+		return "Default"
+	case LONG_DATE_FORMAT_YYYY_M_D:
+		return "YYYY_MM_D"
+	case LONG_DATE_FORMAT_M_D_YYYY:
+		return "M_D_YYYY"
+	case LONG_DATE_FORMAT_D_M_YYYY:
+		return "D_M_YYYY"
+	case LONG_DATE_FORMAT_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(f))
+	}
+}
+
+// ShortDateFormat represents short date format
+type ShortDateFormat byte
+
+// Short Date Format
+const (
+	SHORT_DATE_FORMAT_DEFAULT  ShortDateFormat = 0
+	SHORT_DATE_FORMAT_YYYY_M_D ShortDateFormat = 1
+	SHORT_DATE_FORMAT_M_D_YYYY ShortDateFormat = 2
+	SHORT_DATE_FORMAT_D_M_YYYY ShortDateFormat = 3
+	SHORT_DATE_FORMAT_INVALID  ShortDateFormat = 255
+)
+
+// String returns a textual representation of the short date format enum
+func (f ShortDateFormat) String() string {
+	switch f {
+	case SHORT_DATE_FORMAT_DEFAULT:
+		return "Default"
+	case SHORT_DATE_FORMAT_YYYY_M_D:
+		return "YYYY_MM_D"
+	case SHORT_DATE_FORMAT_M_D_YYYY:
+		return "M_D_YYYY"
+	case SHORT_DATE_FORMAT_D_M_YYYY:
+		return "D_M_YYYY"
+	case SHORT_DATE_FORMAT_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(f))
+	}
+}
+
+// LongTimeFormat represents long time format
+type LongTimeFormat byte
+
+// Long Time Format
+const (
+	LONG_TIME_FORMAT_DEFAULT    LongTimeFormat = 0
+	LONG_TIME_FORMAT_HH_MM_SS   LongTimeFormat = 1
+	LONG_TIME_FORMAT_A_HH_MM_SS LongTimeFormat = 2
+	LONG_TIME_FORMAT_HH_MM_SS_A LongTimeFormat = 3
+	LONG_TIME_FORMAT_INVALID    LongTimeFormat = 255
+)
+
+// String returns a textual representation of the long time format enum
+func (f LongTimeFormat) String() string {
+	switch f {
+	case LONG_TIME_FORMAT_DEFAULT:
+		return "Default"
+	case LONG_TIME_FORMAT_HH_MM_SS:
+		return "HH_MM_SS"
+	case LONG_TIME_FORMAT_A_HH_MM_SS:
+		return "A_HH_MM_SS"
+	case LONG_TIME_FORMAT_HH_MM_SS_A:
+		return "HH_MM_SS_A"
+	case LONG_TIME_FORMAT_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(f))
+	}
+}
+
+// ShortTimeFormat represents short time format
+type ShortTimeFormat byte
+
+// Short Time Format
+const (
+	SHORT_TIME_FORMAT_DEFAULT ShortTimeFormat = 0
+	SHORT_TIME_FORMAT_HH_MM   ShortTimeFormat = 1
+	SHORT_TIME_FORMAT_A_HH_MM ShortTimeFormat = 2
+	SHORT_TIME_FORMAT_HH_MM_A ShortTimeFormat = 3
+	SHORT_TIME_FORMAT_INVALID ShortTimeFormat = 255
+)
+
+// String returns a textual representation of the short time format enum
+func (f ShortTimeFormat) String() string {
+	switch f {
+	case SHORT_TIME_FORMAT_DEFAULT:
+		return "Default"
+	case SHORT_TIME_FORMAT_HH_MM:
+		return "HH_MM"
+	case SHORT_TIME_FORMAT_A_HH_MM:
+		return "A_HH_MM"
+	case SHORT_TIME_FORMAT_HH_MM_A:
+		return "HH_MM_A"
+	case SHORT_TIME_FORMAT_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(f))
+	}
+}

pkg/models/user.go

@@ -7,45 +7,6 @@ import (
 	"github.com/mayswind/ezbookkeeping/pkg/utils"
 )
 
-// WeekDay represents week day
-type WeekDay byte
-
-// Week days
-const (
-	WEEKDAY_SUNDAY    WeekDay = 0
-	WEEKDAY_MONDAY    WeekDay = 1
-	WEEKDAY_TUESDAY   WeekDay = 2
-	WEEKDAY_WEDNESDAY WeekDay = 3
-	WEEKDAY_THURSDAY  WeekDay = 4
-	WEEKDAY_FRIDAY    WeekDay = 5
-	WEEKDAY_SATURDAY  WeekDay = 6
-	WEEKDAY_INVALID   WeekDay = 255
-)
-
-// String returns a textual representation of the week day enum
-func (d WeekDay) String() string {
-	switch d {
-	case WEEKDAY_SUNDAY:
-		return "Sunday"
-	case WEEKDAY_MONDAY:
-		return "Monday"
-	case WEEKDAY_TUESDAY:
-		return "Tuesday"
-	case WEEKDAY_WEDNESDAY:
-		return "Wednesday"
-	case WEEKDAY_THURSDAY:
-		return "Thursday"
-	case WEEKDAY_FRIDAY:
-		return "Friday"
-	case WEEKDAY_SATURDAY:
-		return "Saturday"
-	case WEEKDAY_INVALID:
-		return "Invalid"
-	default:
-		return fmt.Sprintf("Invalid(%d)", int(d))
-	}
-}
-
 // TransactionEditScope represents the scope which transaction can be edited
 type TransactionEditScope byte
 
@@ -93,10 +54,15 @@ type User struct {
 	Nickname             string `xorm:"VARCHAR(64) NOT NULL"`
 	Password             string `xorm:"VARCHAR(64) NOT NULL"`
 	Salt                 string `xorm:"VARCHAR(10) NOT NULL"`
-	DefaultCurrency      string `xorm:"VARCHAR(3) NOT NULL"`
 	DefaultAccountId     int64
-	FirstDayOfWeek       WeekDay              `xorm:"TINYINT NOT NULL"`
 	TransactionEditScope TransactionEditScope `xorm:"TINYINT NOT NULL"`
+	Language             string               `xorm:"VARCHAR(10)"`
+	DefaultCurrency      string               `xorm:"VARCHAR(3) NOT NULL"`
+	FirstDayOfWeek       WeekDay              `xorm:"TINYINT NOT NULL"`
+	LongDateFormat       LongDateFormat       `xorm:"TINYINT"`
+	ShortDateFormat      ShortDateFormat      `xorm:"TINYINT"`
+	LongTimeFormat       LongTimeFormat       `xorm:"TINYINT"`
+	ShortTimeFormat      ShortTimeFormat      `xorm:"TINYINT"`
 	Deleted              bool                 `xorm:"NOT NULL"`
 	EmailVerified        bool                 `xorm:"NOT NULL"`
 	CreatedUnixTime      int64
@@ -110,10 +76,15 @@ type UserBasicInfo struct {
 	Username             string               `json:"username"`
 	Email                string               `json:"email"`
 	Nickname             string               `json:"nickname"`
-	DefaultCurrency      string               `json:"defaultCurrency"`
 	DefaultAccountId     int64                `json:"defaultAccountId,string"`
-	FirstDayOfWeek       WeekDay              `json:"firstDayOfWeek"`
 	TransactionEditScope TransactionEditScope `json:"transactionEditScope"`
+	Language             string               `json:"language"`
+	DefaultCurrency      string               `json:"defaultCurrency"`
+	FirstDayOfWeek       WeekDay              `json:"firstDayOfWeek"`
+	LongDateFormat       LongDateFormat       `json:"longDateFormat"`
+	ShortDateFormat      ShortDateFormat      `json:"shortDateFormat"`
+	LongTimeFormat       LongTimeFormat       `json:"longTimeFormat"`
+	ShortTimeFormat      ShortTimeFormat      `json:"shortTimeFormat"`
 }
 
 // UserLoginRequest represents all parameters of user login request
@@ -128,6 +99,7 @@ type UserRegisterRequest struct {
 	Email           string  `json:"email" binding:"required,notBlank,max=100,validEmail"`
 	Nickname        string  `json:"nickname" binding:"required,notBlank,max=64"`
 	Password        string  `json:"password" binding:"required,min=6,max=128"`
+	Language        string  `json:"language" binding:"required,min=2,max=16"`
 	DefaultCurrency string  `json:"defaultCurrency" binding:"required,len=3,validCurrency"`
 	FirstDayOfWeek  WeekDay `json:"firstDayOfWeek" binding:"min=0,max=6"`
 }
@@ -138,10 +110,15 @@ type UserProfileUpdateRequest struct {
 	Nickname             string                `json:"nickname" binding:"omitempty,notBlank,max=64"`
 	Password             string                `json:"password" binding:"omitempty,min=6,max=128"`
 	OldPassword          string                `json:"oldPassword" binding:"omitempty,min=6,max=128"`
-	DefaultCurrency      string                `json:"defaultCurrency" binding:"omitempty,len=3,validCurrency"`
 	DefaultAccountId     int64                 `json:"defaultAccountId,string" binding:"omitempty,min=1"`
-	FirstDayOfWeek       *WeekDay              `json:"firstDayOfWeek" binding:"omitempty,min=0,max=6"`
 	TransactionEditScope *TransactionEditScope `json:"transactionEditScope" binding:"omitempty,min=0,max=7"`
+	Language             string                `json:"language" binding:"omitempty,min=2,max=16"`
+	DefaultCurrency      string                `json:"defaultCurrency" binding:"omitempty,len=3,validCurrency"`
+	FirstDayOfWeek       *WeekDay              `json:"firstDayOfWeek" binding:"omitempty,min=0,max=6"`
+	LongDateFormat       *LongDateFormat       `json:"longDateFormat" binding:"omitempty,min=0,max=3"`
+	ShortDateFormat      *ShortDateFormat      `json:"shortDateFormat" binding:"omitempty,min=0,max=3"`
+	LongTimeFormat       *LongTimeFormat       `json:"longTimeFormat" binding:"omitempty,min=0,max=3"`
+	ShortTimeFormat      *ShortTimeFormat      `json:"shortTimeFormat" binding:"omitempty,min=0,max=3"`
 }
 
 // UserProfileUpdateResponse represents the data returns to frontend after updating profile
@@ -155,10 +132,15 @@ type UserProfileResponse struct {
 	Username             string               `json:"username"`
 	Email                string               `json:"email"`
 	Nickname             string               `json:"nickname"`
-	DefaultCurrency      string               `json:"defaultCurrency"`
 	DefaultAccountId     int64                `json:"defaultAccountId,string"`
-	FirstDayOfWeek       WeekDay              `json:"firstDayOfWeek"`
 	TransactionEditScope TransactionEditScope `json:"transactionEditScope"`
+	Language             string               `json:"language"`
+	DefaultCurrency      string               `json:"defaultCurrency"`
+	FirstDayOfWeek       WeekDay              `json:"firstDayOfWeek"`
+	LongDateFormat       LongDateFormat       `json:"longDateFormat"`
+	ShortDateFormat      ShortDateFormat      `json:"shortDateFormat"`
+	LongTimeFormat       LongTimeFormat       `json:"longTimeFormat"`
+	ShortTimeFormat      ShortTimeFormat      `json:"shortTimeFormat"`
 	LastLoginAt          int64                `json:"lastLoginAt"`
 }
 
@@ -210,10 +192,15 @@ func (u *User) ToUserBasicInfo() *UserBasicInfo {
 		Username:             u.Username,
 		Email:                u.Email,
 		Nickname:             u.Nickname,
-		DefaultCurrency:      u.DefaultCurrency,
 		DefaultAccountId:     u.DefaultAccountId,
-		FirstDayOfWeek:       u.FirstDayOfWeek,
 		TransactionEditScope: u.TransactionEditScope,
+		Language:             u.Language,
+		DefaultCurrency:      u.DefaultCurrency,
+		FirstDayOfWeek:       u.FirstDayOfWeek,
+		LongDateFormat:       u.LongDateFormat,
+		ShortDateFormat:      u.ShortDateFormat,
+		LongTimeFormat:       u.LongTimeFormat,
+		ShortTimeFormat:      u.ShortTimeFormat,
 	}
 }
 
@@ -223,10 +210,15 @@ func (u *User) ToUserProfileResponse() *UserProfileResponse {
 		Username:             u.Username,
 		Email:                u.Email,
 		Nickname:             u.Nickname,
-		DefaultCurrency:      u.DefaultCurrency,
 		DefaultAccountId:     u.DefaultAccountId,
-		FirstDayOfWeek:       u.FirstDayOfWeek,
 		TransactionEditScope: u.TransactionEditScope,
+		Language:             u.Language,
+		DefaultCurrency:      u.DefaultCurrency,
+		FirstDayOfWeek:       u.FirstDayOfWeek,
+		LongDateFormat:       u.LongDateFormat,
+		ShortDateFormat:      u.ShortDateFormat,
+		LongTimeFormat:       u.LongTimeFormat,
+		ShortTimeFormat:      u.ShortTimeFormat,
 		LastLoginAt:          u.LastLoginUnixTime,
 	}
 }

pkg/services/users.go

@@ -150,7 +150,7 @@ func (s *UserService) CreateUser(user *models.User) error {
 }
 
 // UpdateUser saves an existed user model to database
-func (s *UserService) UpdateUser(user *models.User) (keyProfileUpdated bool, err error) {
+func (s *UserService) UpdateUser(user *models.User, modifyUserLanguage bool) (keyProfileUpdated bool, err error) {
 	if user.Uid <= 0 {
 		return false, errs.ErrUserIdInvalid
 	}
@@ -186,20 +186,40 @@ func (s *UserService) UpdateUser(user *models.User) (keyProfileUpdated bool, err
 		updateCols = append(updateCols, "nickname")
 	}
 
-	if user.DefaultCurrency != "" {
-		updateCols = append(updateCols, "default_currency")
-	}
-
 	if user.DefaultAccountId > 0 {
 		updateCols = append(updateCols, "default_account_id")
 	}
 
+	if models.TRANSACTION_EDIT_SCOPE_NONE <= user.TransactionEditScope && user.TransactionEditScope <= models.TRANSACTION_EDIT_SCOPE_THIS_YEAR_OR_LATER {
+		updateCols = append(updateCols, "transaction_edit_scope")
+	}
+
+	if modifyUserLanguage || user.Language != "" {
+		updateCols = append(updateCols, "language")
+	}
+
+	if user.DefaultCurrency != "" {
+		updateCols = append(updateCols, "default_currency")
+	}
+
 	if models.WEEKDAY_SUNDAY <= user.FirstDayOfWeek && user.FirstDayOfWeek <= models.WEEKDAY_SATURDAY {
 		updateCols = append(updateCols, "first_day_of_week")
 	}
 
-	if models.TRANSACTION_EDIT_SCOPE_NONE <= user.TransactionEditScope && user.TransactionEditScope <= models.TRANSACTION_EDIT_SCOPE_THIS_YEAR_OR_LATER {
-		updateCols = append(updateCols, "transaction_edit_scope")
+	if models.LONG_DATE_FORMAT_DEFAULT <= user.LongDateFormat && user.LongDateFormat <= models.LONG_DATE_FORMAT_D_M_YYYY {
+		updateCols = append(updateCols, "long_date_format")
+	}
+
+	if models.SHORT_DATE_FORMAT_DEFAULT <= user.ShortDateFormat && user.ShortDateFormat <= models.SHORT_DATE_FORMAT_D_M_YYYY {
+		updateCols = append(updateCols, "short_date_format")
+	}
+
+	if models.LONG_TIME_FORMAT_DEFAULT <= user.LongTimeFormat && user.LongTimeFormat <= models.LONG_TIME_FORMAT_HH_MM_SS_A {
+		updateCols = append(updateCols, "long_time_format")
+	}
+
+	if models.SHORT_TIME_FORMAT_DEFAULT <= user.ShortTimeFormat && user.ShortTimeFormat <= models.SHORT_TIME_FORMAT_HH_MM_A {
+		updateCols = append(updateCols, "short_time_format")
 	}
 
 	user.UpdatedUnixTime = now

src/MobileApp.vue

@@ -75,14 +75,20 @@ export default {
         }
     },
     created() {
-        if (this.$user.isUserLogined()) {
-            if (!this.$settings.isEnableApplicationLock()) {
+        const self = this;
+
+        if (self.$user.isUserLogined()) {
+            if (!self.$settings.isEnableApplicationLock()) {
                 // refresh token if user is logined
-                this.$store.dispatch('refreshTokenAndRevokeOldToken');
+                self.$store.dispatch('refreshTokenAndRevokeOldToken').then(response => {
+                    if (response.user && response.user.language) {
+                        self.$locale.setLanguage(response.user.language);
+                    }
+                });
 
                 // auto refresh exchange rates data
-                if (this.$settings.isAutoUpdateExchangeRatesData()) {
-                    this.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
+                if (self.$settings.isAutoUpdateExchangeRatesData()) {
+                    self.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
                 }
             }
         }

src/components/mobile/DateRangeSelectionSheet.vue

@@ -95,16 +95,15 @@ export default {
             return this.$utilities.arrangeArrayWithNewStartIndex(this.$locale.getAllMinWeekdayNames(), this.firstDayOfWeek);
         },
         is24Hour() {
-            const datetimeFormat = this.$t('format.datetime.long');
-            return this.$utilities.is24HourFormat(datetimeFormat);
+            return this.$locale.isLongTime24HourFormat();
         },
         beginDateTime() {
             const actualBeginUnixTime = this.$utilities.getActualUnixTimeForStore(this.$utilities.getUnixTime(this.dateRange[0]), this.$utilities.getTimezoneOffsetMinutes(), this.$utilities.getBrowserTimezoneOffsetMinutes());
-            return this.$utilities.formatUnixTime(actualBeginUnixTime, this.$t('format.datetime.long'));
+            return this.$utilities.formatUnixTime(actualBeginUnixTime, this.$locale.getLongDateTimeFormat());
         },
         endDateTime() {
             const actualEndUnixTime = this.$utilities.getActualUnixTimeForStore(this.$utilities.getUnixTime(this.dateRange[1]), this.$utilities.getTimezoneOffsetMinutes(), this.$utilities.getBrowserTimezoneOffsetMinutes());
-            return this.$utilities.formatUnixTime(actualEndUnixTime, this.$t('format.datetime.long'));
+            return this.$utilities.formatUnixTime(actualEndUnixTime, this.$locale.getLongDateTimeFormat());
         },
         presetRanges() {
             const presetRanges = [];

src/components/mobile/DateTimeSelectionSheet.vue

@@ -70,8 +70,7 @@ export default {
             return this.$utilities.arrangeArrayWithNewStartIndex(this.$locale.getAllMinWeekdayNames(), this.firstDayOfWeek);
         },
         is24Hour() {
-            const datetimeFormat = this.$t('format.datetime.long');
-            return this.$utilities.is24HourFormat(datetimeFormat);
+            return this.$locale.isLongTime24HourFormat();
         }
     },
     methods: {

src/consts/datetime.js

@@ -39,6 +39,96 @@ const allWeekDaysArray = [
     allWeekDays.Saturday
 ];
 
+const allLongDateFormat = {
+    YYYYMMDD: {
+        type: 1,
+        key: 'yyyy_mm_dd'
+    },
+    MMDDYYYY: {
+        type: 2,
+        key: 'mm_dd_yyyy'
+    },
+    DDMMYYYY: {
+        type: 3,
+        key: 'dd_mm_yyyy'
+    }
+};
+
+const allLongDateFormatArray = [
+    allLongDateFormat.YYYYMMDD,
+    allLongDateFormat.MMDDYYYY,
+    allLongDateFormat.DDMMYYYY
+];
+
+const allShortDateFormat = {
+    YYYYMMDD: {
+        type: 1,
+        key: 'yyyy_mm_dd'
+    },
+    MMDDYYYY: {
+        type: 2,
+        key: 'mm_dd_yyyy'
+    },
+    DDMMYYYY: {
+        type: 3,
+        key: 'dd_mm_yyyy'
+    }
+};
+
+const allShortDateFormatArray = [
+    allShortDateFormat.YYYYMMDD,
+    allShortDateFormat.MMDDYYYY,
+    allShortDateFormat.DDMMYYYY
+];
+
+const allLongTimeFormat = {
+    HHMMSS: {
+        type: 1,
+        key: 'hh_mm_ss',
+        is24HourFormat: true
+    },
+    AHHMMSS: {
+        type: 2,
+        key: 'a_hh_mm_ss',
+        is24HourFormat: false
+    },
+    HHMMSSA: {
+        type: 3,
+        key: 'hh_mm_ss_a',
+        is24HourFormat: false
+    }
+};
+
+const allLongTimeFormatArray = [
+    allLongTimeFormat.HHMMSS,
+    allLongTimeFormat.AHHMMSS,
+    allLongTimeFormat.HHMMSSA
+];
+
+const allShortTimeFormat = {
+    HHMM: {
+        type: 1,
+        key: 'hh_mm',
+        is24HourFormat: true
+    },
+    AHHMM: {
+        type: 2,
+        key: 'a_hh_mm',
+        is24HourFormat: false
+    },
+    HHMMA: {
+        type: 3,
+        key: 'hh_mm_a',
+        is24HourFormat: false
+    }
+};
+
+const allShortTimeFormatArray = [
+    allShortTimeFormat.HHMM,
+    allShortTimeFormat.AHHMM,
+    allShortTimeFormat.HHMMA
+];
+
 const allDateRanges = {
     All: {
         type: 0,
@@ -91,10 +181,28 @@ const allDateRanges = {
 };
 
 const defaultFirstDayOfWeek = allWeekDays.Sunday.type;
+const defaultLongDateFormat = allLongDateFormat.YYYYMMDD;
+const defaultShortDateFormat = allShortDateFormat.YYYYMMDD;
+const defaultLongTimeFormat = allLongTimeFormat.HHMMSS;
+const defaultShortTimeFormat = allShortTimeFormat.HHMM;
+const defaultDateTimeFormatValue = 0;
 
 export default {
     allWeekDays: allWeekDays,
     allWeekDaysArray: allWeekDaysArray,
+    allLongDateFormat: allLongDateFormat,
+    allLongDateFormatArray: allLongDateFormatArray,
+    allShortDateFormat: allShortDateFormat,
+    allShortDateFormatArray: allShortDateFormatArray,
+    allLongTimeFormat: allLongTimeFormat,
+    allLongTimeFormatArray: allLongTimeFormatArray,
+    allShortTimeFormat: allShortTimeFormat,
+    allShortTimeFormatArray: allShortTimeFormatArray,
     allDateRanges: allDateRanges,
-    defaultFirstDayOfWeek: defaultFirstDayOfWeek
+    defaultFirstDayOfWeek: defaultFirstDayOfWeek,
+    defaultLongDateFormat: defaultLongDateFormat,
+    defaultShortDateFormat: defaultShortDateFormat,
+    defaultLongTimeFormat: defaultLongTimeFormat,
+    defaultShortTimeFormat: defaultShortTimeFormat,
+    defaultDateTimeFormatValue: defaultDateTimeFormatValue,
 };

src/lib/i18n.js

@@ -1,4 +1,5 @@
 import { defaultLanguage, allLanguages } from '../locales/index.js';
+import datetime from "../consts/datetime.js";
 import timezone from "../consts/timezone.js";
 import currency from "../consts/currency.js";
 import settings from "./settings.js";
@@ -250,6 +251,88 @@ export function getAllMinWeekdayNames(translateFn) {
     ];
 }
 
+export function getAllLongDateFormats(translateFn) {
+    const defaultLongDateFormatTypeName = translateFn('default.longDateFormat');
+    return getDateTimeFormats(translateFn, datetime.allLongDateFormat, datetime.allLongDateFormatArray, 'format.longDate', defaultLongDateFormatTypeName, datetime.defaultLongDateFormat);
+}
+
+export function getAllShortDateFormats(translateFn) {
+    const defaultShortDateFormatTypeName = translateFn('default.shortDateFormat');
+    return getDateTimeFormats(translateFn, datetime.allShortDateFormat, datetime.allShortDateFormatArray, 'format.shortDate', defaultShortDateFormatTypeName, datetime.defaultShortDateFormat);
+}
+
+export function getAllLongTimeFormats(translateFn) {
+    const defaultLongTimeFormatTypeName = translateFn('default.longTimeFormat');
+    return getDateTimeFormats(translateFn, datetime.allLongTimeFormat, datetime.allLongTimeFormatArray, 'format.longTime', defaultLongTimeFormatTypeName, datetime.defaultLongTimeFormat);
+}
+
+export function getAllShortTimeFormats(translateFn) {
+    const defaultShortTimeFormatTypeName = translateFn('default.shortTimeFormat');
+    return getDateTimeFormats(translateFn, datetime.allShortTimeFormat, datetime.allShortTimeFormatArray, 'format.shortTime', defaultShortTimeFormatTypeName, datetime.defaultShortTimeFormat);
+}
+
+export function getI18nLongDateFormat(translateFn, formatTypeValue) {
+    const defaultLongDateFormatTypeName = translateFn('default.longDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allLongDateFormat, datetime.allLongDateFormatArray, 'format.longDate', defaultLongDateFormatTypeName, datetime.defaultLongDateFormat, formatTypeValue);
+}
+
+export function getI18nShortDateFormat(translateFn, formatTypeValue) {
+    const defaultShortDateFormatTypeName = translateFn('default.shortDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allShortDateFormat, datetime.allShortDateFormatArray, 'format.shortDate', defaultShortDateFormatTypeName, datetime.defaultShortDateFormat, formatTypeValue);
+}
+
+export function getI18nLongYearFormat(translateFn, formatTypeValue) {
+    const defaultLongDateFormatTypeName = translateFn('default.longDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allLongDateFormat, datetime.allLongDateFormatArray, 'format.longYear', defaultLongDateFormatTypeName, datetime.defaultLongDateFormat, formatTypeValue);
+}
+
+export function getI18nShortYearFormat(translateFn, formatTypeValue) {
+    const defaultShortDateFormatTypeName = translateFn('default.shortDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allShortDateFormat, datetime.allShortDateFormatArray, 'format.shortYear', defaultShortDateFormatTypeName, datetime.defaultShortDateFormat, formatTypeValue);
+}
+
+export function getI18nLongYearMonthFormat(translateFn, formatTypeValue) {
+    const defaultLongDateFormatTypeName = translateFn('default.longDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allLongDateFormat, datetime.allLongDateFormatArray, 'format.longYearMonth', defaultLongDateFormatTypeName, datetime.defaultLongDateFormat, formatTypeValue);
+}
+
+export function getI18nShortYearMonthFormat(translateFn, formatTypeValue) {
+    const defaultShortDateFormatTypeName = translateFn('default.shortDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allShortDateFormat, datetime.allShortDateFormatArray, 'format.shortYearMonth', defaultShortDateFormatTypeName, datetime.defaultShortDateFormat, formatTypeValue);
+}
+
+export function getI18nLongMonthDayFormat(translateFn, formatTypeValue) {
+    const defaultLongDateFormatTypeName = translateFn('default.longDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allLongDateFormat, datetime.allLongDateFormatArray, 'format.longMonthDay', defaultLongDateFormatTypeName, datetime.defaultLongDateFormat, formatTypeValue);
+}
+
+export function getI18nShortMonthDayFormat(translateFn, formatTypeValue) {
+    const defaultShortDateFormatTypeName = translateFn('default.shortDateFormat');
+    return getDateTimeFormat(translateFn, datetime.allShortDateFormat, datetime.allShortDateFormatArray, 'format.shortMonthDay', defaultShortDateFormatTypeName, datetime.defaultShortDateFormat, formatTypeValue);
+}
+
+export function getI18nLongTimeFormat(translateFn, formatTypeValue) {
+    const defaultLongTimeFormatTypeName = translateFn('default.longTimeFormat');
+    return getDateTimeFormat(translateFn, datetime.allLongTimeFormat, datetime.allLongTimeFormatArray, 'format.longTime', defaultLongTimeFormatTypeName, datetime.defaultLongTimeFormat, formatTypeValue);
+}
+
+export function getI18nShortTimeFormat(translateFn, formatTypeValue) {
+    const defaultShortTimeFormatTypeName = translateFn('default.shortTimeFormat');
+    return getDateTimeFormat(translateFn, datetime.allShortTimeFormat, datetime.allShortTimeFormatArray, 'format.shortTime', defaultShortTimeFormatTypeName, datetime.defaultShortTimeFormat, formatTypeValue);
+}
+
+export function isLongTime24HourFormat(translateFn, formatTypeValue) {
+    const defaultLongTimeFormatTypeName = translateFn('default.longTimeFormat');
+    const type = utilities.getDateTimeFormatType(datetime.allLongTimeFormat, datetime.allLongTimeFormatArray, defaultLongTimeFormatTypeName, datetime.defaultLongTimeFormat, formatTypeValue);
+    return type.is24HourFormat;
+}
+
+export function isShortTime24HourFormat(translateFn, formatTypeValue) {
+    const defaultShortTimeFormatTypeName = translateFn('default.shortTimeFormat');
+    const type = utilities.getDateTimeFormatType(datetime.allShortTimeFormat, datetime.allShortTimeFormatArray, defaultShortTimeFormatTypeName, datetime.defaultShortTimeFormat, formatTypeValue);
+    return type.is24HourFormat;
+}
+
 export function getAllTimezones(includeSystemDefault, translateFn) {
     const defaultTimezoneOffset = utilities.getTimezoneOffset();
     const defaultTimezoneOffsetMinutes = utilities.getTimezoneOffsetMinutes();
@@ -462,3 +545,34 @@ function getLocaleFromLanguageAlias(alias) {
 
     return null;
 }
+
+function getDateTimeFormats(translateFn, allFormatMap, allFormatArray, localeFormatPathPrefix, localeDefaultFormatTypeName, systemDefaultFormatType) {
+    const defaultFormat = getDateTimeFormat(translateFn, allFormatMap, allFormatArray,
+        localeFormatPathPrefix, localeDefaultFormatTypeName, systemDefaultFormatType, datetime.defaultDateTimeFormatValue);
+    const ret = [];
+
+    ret.push({
+        type: datetime.defaultDateTimeFormatValue,
+        format: defaultFormat,
+        displayName: `${translateFn('Language Default')} (${utilities.formatTime(utilities.getCurrentDateTime(), defaultFormat)})`
+    });
+
+    for (let i = 0; i < allFormatArray.length; i++) {
+        const formatType = allFormatArray[i];
+        const format = translateFn(`${localeFormatPathPrefix}.${formatType.key}`);
+
+        ret.push({
+            type: formatType.type,
+            format: format,
+            displayName: utilities.formatTime(utilities.getCurrentDateTime(), format)
+        });
+    }
+
+    return ret;
+}
+
+function getDateTimeFormat(translateFn, allFormatMap, allFormatArray, localeFormatPathPrefix, localeDefaultFormatTypeName, systemDefaultFormatType, formatTypeValue) {
+    const type = utilities.getDateTimeFormatType(allFormatMap, allFormatArray,
+        localeDefaultFormatTypeName, systemDefaultFormatType, formatTypeValue);
+    return translateFn(`${localeFormatPathPrefix}.${type.key}`);
+}

src/lib/services.js

@@ -87,12 +87,13 @@ export default {
             }
         });
     },
-    register: ({ username, email, nickname, password, defaultCurrency, firstDayOfWeek }) => {
+    register: ({ username, email, nickname, password, language, defaultCurrency, firstDayOfWeek }) => {
         return axios.post('register.json', {
             username,
             email,
             nickname,
             password,
+            language,
             defaultCurrency,
             firstDayOfWeek
         });
@@ -135,16 +136,21 @@ export default {
     getProfile: () => {
         return axios.get('v1/users/profile/get.json');
     },
-    updateProfile: ({ email, nickname, password, oldPassword, defaultCurrency, defaultAccountId, firstDayOfWeek, transactionEditScope }) => {
+    updateProfile: ({ email, nickname, password, oldPassword, defaultAccountId, transactionEditScope, language, defaultCurrency, firstDayOfWeek, longDateFormat, shortDateFormat, longTimeFormat, shortTimeFormat }) => {
         return axios.post('v1/users/profile/update.json', {
             email,
             nickname,
             password,
             oldPassword,
-            defaultCurrency,
             defaultAccountId,
+            transactionEditScope,
+            language,
+            defaultCurrency,
             firstDayOfWeek,
-            transactionEditScope
+            longDateFormat,
+            shortDateFormat,
+            longTimeFormat,
+            shortTimeFormat
         });
     },
     get2FAStatus: () => {

src/lib/settings.js

@@ -7,7 +7,6 @@ const settingsLocalStorageKey = 'ebk_app_settings';
 const serverSettingsCookieKey = 'ebk_server_settings';
 
 const defaultSettings = {
-    lang: 'en',
     timeZone: '',
     debug: false,
     applicationLock: false,
@@ -129,8 +128,6 @@ function clearSettings() {
 
 export default {
     isProduction: () => process.env.NODE_ENV === 'production',
-    getLanguage: () => getOriginalOption('lang'),
-    setLanguage: value => setOption('lang', value),
     getTimezone: () => getOption('timeZone'),
     setTimezone: value => setOption('timeZone', value),
     isEnableDebug: () => getOption('debug'),

src/lib/utilities/datetime.js

@@ -89,16 +89,6 @@ export function parseDateFromUnixTime(unixTime, utcOffset, currentUtcOffset) {
     return moment.unix(unixTime);
 }
 
-export function is24HourFormat(format) {
-    if (format.indexOf('HH') >= 0 && format.indexOf('hh') < 0) {
-        return true;
-    } else if (format.indexOf('HH') < 0 && format.indexOf('hh') >= 0) {
-        return false;
-    }
-
-    return true;
-}
-
 export function formatUnixTime(unixTime, format, utcOffset, currentUtcOffset) {
     return parseDateFromUnixTime(unixTime, utcOffset, currentUtcOffset).format(format);
 }
@@ -214,6 +204,16 @@ export function getThisYearLastUnixTime() {
     return moment.unix(getThisYearFirstUnixTime()).add(1, 'years').subtract(1, 'seconds').unix();
 }
 
+export function getDateTimeFormatType(allFormatMap, allFormatArray, localeDefaultFormatTypeName, systemDefaultFormatType, formatTypeValue) {
+    if (formatTypeValue > dateTimeConstants.defaultDateTimeFormatValue && allFormatArray[formatTypeValue - 1] && allFormatArray[formatTypeValue - 1].key) {
+        return allFormatArray[formatTypeValue - 1];
+    } else if (formatTypeValue === dateTimeConstants.defaultDateTimeFormatValue && allFormatMap[localeDefaultFormatTypeName] && allFormatMap[localeDefaultFormatTypeName].key) {
+        return allFormatMap[localeDefaultFormatTypeName];
+    } else {
+        return systemDefaultFormatType;
+    }
+}
+
 export function getShiftedDateRange(minTime, maxTime, scale) {
     const minDateTime = parseDateFromUnixTime(minTime).set({ second: 0, millisecond: 0 });
     const maxDateTime = parseDateFromUnixTime(maxTime).set({ second: 59, millisecond: 999 });

src/lib/utilities/index.js

@@ -31,7 +31,6 @@ import {
     getCurrentUnixTime,
     getCurrentDateTime,
     parseDateFromUnixTime,
-    is24HourFormat,
     formatUnixTime,
     formatTime,
     getUnixTime,
@@ -55,6 +54,7 @@ import {
     getThisMonthLastUnixTime,
     getThisYearFirstUnixTime,
     getThisYearLastUnixTime,
+    getDateTimeFormatType,
     getShiftedDateRange,
     getDateRangeByDateType,
     isDateRangeMatchFullYears,
@@ -123,7 +123,6 @@ export default {
     getCurrentUnixTime,
     getCurrentDateTime,
     parseDateFromUnixTime,
-    is24HourFormat,
     formatUnixTime,
     formatTime,
     getUnixTime,
@@ -147,6 +146,7 @@ export default {
     getThisMonthLastUnixTime,
     getThisYearFirstUnixTime,
     getThisYearLastUnixTime,
+    getDateTimeFormatType,
     getShiftedDateRange,
     getDateRangeByDateType,
     isDateRangeMatchFullYears,

src/locales/en.js

@@ -6,31 +6,62 @@ export default {
     },
     'default': {
         'currency': 'USD',
-        'firstDayOfWeek': 'Sunday'
+        'firstDayOfWeek': 'Sunday',
+        'longDateFormat': 'MMDDYYYY',
+        'shortDateFormat': 'MMDDYYYY',
+        'longTimeFormat': 'HHMMSSA',
+        'shortTimeFormat': 'HHMMA'
     },
     'format': { // The type of date or time format is moment format, ref: https://momentjs.com/docs/#/displaying/
-        'date': {
-            'long': 'M/D/YYYY',
-            'short': 'M/D/YYYY'
+        'longDate': {
+            'yyyy_mm_dd': 'YYYY MMMM DD',
+            'mm_dd_yyyy': 'MMMM D, YYYY',
+            'dd_mm_yyyy': 'D MMMM, YYYY'
         },
-        'datetime': {
-            'long': 'M/D/YYYY hh:mm:ss A',
-            'long-without-second': 'M/D/YYYY hh:mm A',
+        'shortDate': {
+            'yyyy_mm_dd': 'YYYY-M-D',
+            'mm_dd_yyyy': 'M/D/YYYY',
+            'dd_mm_yyyy': 'D/M/YYYY'
         },
-        'year': {
-            'long': 'YYYY',
-            'short': 'YYYY'
+        'longYear': { // used in home page
+            'yyyy_mm_dd': 'YYYY',
+            'mm_dd_yyyy': 'YYYY',
+            'dd_mm_yyyy': 'YYYY'
         },
-        'yearMonth': {
-            'long': 'YYYY-M',
-            'short': 'YYYY-M'
+        'shortYear': {// used in transaction statistics page
+            'yyyy_mm_dd': 'YYYY',
+            'mm_dd_yyyy': 'YYYY',
+            'dd_mm_yyyy': 'YYYY'
         },
-        'monthDay': {
-            'long': 'M/D',
-            'short': 'M/D'
+        'longYearMonth': { // used in transaction list page
+            'yyyy_mm_dd': 'YYYY MMMM',
+            'mm_dd_yyyy': 'MMMM, YYYY',
+            'dd_mm_yyyy': 'MMMM, YYYY'
         },
-        'hourMinute': {
-            'long': 'hh:mm A'
+        'shortYearMonth': { // used in transaction statistics page
+            'yyyy_mm_dd': 'YYYY-M',
+            'mm_dd_yyyy': 'MMM, YYYY',
+            'dd_mm_yyyy': 'MMM, YYYY'
+        },
+        'longMonthDay': { // used in home page
+            'yyyy_mm_dd': 'MMMM D',
+            'mm_dd_yyyy': 'MMMM D',
+            'dd_mm_yyyy': 'D MMMM'
+        },
+        'shortMonthDay': { // should be similar to the shortDate. it would be next to the shortDate content on the transaction statistics page
+            'yyyy_mm_dd': 'M/D',
+            'mm_dd_yyyy': 'M/D',
+            'dd_mm_yyyy': 'D/M'
+        },
+        'longTime': {
+            'hh_mm_ss': 'HH:mm:ss',
+            'a_hh_mm_ss': 'A hh:mm:ss',
+            'hh_mm_ss_a': 'hh:mm:ss A'
+        },
+        'shortTime': {
+            'hh_mm': 'HH:mm',
+            'a_hh_mm': 'A hh:mm',
+            'hh_mm_a': 'hh:mm A'
         },
         'currency': {
             'symbol': '{symbol} {amount}'
@@ -41,6 +72,12 @@ export default {
         'exportFilename': 'ezBookkeeping_{nickname}_export_data'
     },
     'datetime': {
+        'AM': {
+            'upperCase': 'AM'
+        },
+        'PM': {
+            'upperCase': 'PM'
+        },
         'Monday': {
             'min': 'Mo',
             'short': 'Mon',
@@ -657,6 +694,7 @@ export default {
     'None': 'None',
     'Not Specified': 'Not Specified',
     'No results': 'No results',
+    'Unknown': 'Unknown',
     'Done': 'Done',
     'Continue': 'Continue',
     'Status': 'Status',
@@ -727,6 +765,10 @@ export default {
     'Default Currency': 'Default Currency',
     'Default Account': 'Default Account',
     'First Day of Week': 'First Day of Week',
+    'Long Date Format': 'Long Date Format',
+    'Short Date Format': 'Short Date Format',
+    'Long Time Format': 'Long Time Format',
+    'Short Time Format': 'Short Time Format',
     'Editable Transaction Scope': 'Editable Transaction Scope',
     'Today or later': 'Today or later',
     'Recent 24 hours or later': 'Recent 24 hours or later',
@@ -894,6 +936,7 @@ export default {
     'Language': 'Language',
     'Timezone': 'Timezone',
     'System Default': 'System Default',
+    'Language Default': 'Language Default',
     'Auto Update Exchange Rates Data': 'Auto Update Exchange Rates Data',
     'Auto Get Current Geographic Location': 'Auto Get Current Geographic Location',
     'Enable Thousands Separator': 'Enable Thousands Separator',

src/locales/index.js

@@ -1,5 +1,3 @@
-import 'moment/dist/locale/zh-cn.js';
-
 import en from './en.js'
 import zhHans from './zh_Hans.js'
 

src/locales/zh_Hans.js

@@ -6,31 +6,62 @@ export default {
     },
     'default': {
         'currency': 'CNY',
-        'firstDayOfWeek': 'Monday'
+        'firstDayOfWeek': 'Monday',
+        'longDateFormat': 'YYYYMMDD',
+        'shortDateFormat': 'YYYYMMDD',
+        'longTimeFormat': 'HHMMSS',
+        'shortTimeFormat': 'HHMM'
     },
     'format': {
-        'date': {
-            'long': 'YYYY年M月D日',
-            'short': 'YYYY-M-D'
+        'longDate': {
+            'yyyy_mm_dd': 'YYYY年M月D日',
+            'mm_dd_yyyy': 'M/D/YYYY',
+            'dd_mm_yyyy': 'D/M/YYYY'
         },
-        'datetime': {
-            'long': 'YYYY年M月D日 HH:mm:ss',
-            'long-without-second': 'YYYY年M月D日 HH:mm',
+        'shortDate': {
+            'yyyy_mm_dd': 'YYYY-M-D',
+            'mm_dd_yyyy': 'M/D/YYYY',
+            'dd_mm_yyyy': 'D/M/YYYY'
         },
-        'year': {
-            'long': 'YYYY年',
-            'short': 'YYYY'
+        'longYear': {
+            'yyyy_mm_dd': 'YYYY年',
+            'mm_dd_yyyy': 'YYYY年',
+            'dd_mm_yyyy': 'YYYY年'
         },
-        'yearMonth': {
-            'long': 'YYYY年M月',
-            'short': 'YYYY-M'
+        'shortYear': {
+            'yyyy_mm_dd': 'YYYY',
+            'mm_dd_yyyy': 'YYYY',
+            'dd_mm_yyyy': 'YYYY'
         },
-        'monthDay': {
-            'long': 'M月D日',
-            'short': 'M-D'
+        'longYearMonth': {
+            'yyyy_mm_dd': 'YYYY年M月',
+            'mm_dd_yyyy': 'M/YYYY',
+            'dd_mm_yyyy': 'M/YYYY'
         },
-        'hourMinute': {
-            'long': 'HH:mm'
+        'shortYearMonth': {
+            'yyyy_mm_dd': 'YYYY-M',
+            'mm_dd_yyyy': 'M/YYYY',
+            'dd_mm_yyyy': 'M/YYYY'
+        },
+        'longMonthDay': {
+            'yyyy_mm_dd': 'M月D日',
+            'mm_dd_yyyy': 'M/D',
+            'dd_mm_yyyy': 'D/M'
+        },
+        'shortMonthDay': {
+            'yyyy_mm_dd': 'M-D',
+            'mm_dd_yyyy': 'M/D',
+            'dd_mm_yyyy': 'D/M'
+        },
+        'longTime': {
+            'hh_mm_ss': 'HH:mm:ss',
+            'a_hh_mm_ss': 'A hh:mm:ss',
+            'hh_mm_ss_a': 'hh:mm:ss A'
+        },
+        'shortTime': {
+            'hh_mm': 'HH:mm',
+            'a_hh_mm': 'A hh:mm',
+            'hh_mm_a': 'hh:mm A'
         },
         'currency': {
             'symbol': '{symbol} {amount}'
@@ -41,6 +72,12 @@ export default {
         'exportFilename': 'ezBookkeeping_{nickname}_导出数据'
     },
     'datetime': {
+        'AM': {
+            'upperCase': '上午'
+        },
+        'PM': {
+            'upperCase': '下午'
+        },
         'Monday': {
             'min': '一',
             'short': '周一',
@@ -657,6 +694,7 @@ export default {
     'None': '无',
     'Not Specified': '未指定',
     'No results': '无结果',
+    'Unknown': '未知',
     'Done': '完成',
     'Continue': '继续',
     'Status': '状态',
@@ -727,6 +765,10 @@ export default {
     'Default Currency': '默认货币',
     'Default Account': '默认账户',
     'First Day of Week': '每周第一天',
+    'Long Date Format': '长日期格式',
+    'Short Date Format': '短日期格式',
+    'Long Time Format': '长时间格式',
+    'Short Time Format': '短时间格式',
     'Editable Transaction Scope': '可编辑交易范围',
     'Today or later': '今天或更晚',
     'Recent 24 hours or later': '最近24小时或更晚',
@@ -894,6 +936,7 @@ export default {
     'Language': '语言',
     'Timezone': '时区',
     'System Default': '系统默认',
+    'Language Default': '语言默认',
     'Auto Update Exchange Rates Data': '自动更新汇率数据',
     'Auto Get Current Geographic Location': '自动获取当前地理位置',
     'Enable Thousands Separator': '启用千位分隔符',

src/mobile-main.js

@@ -104,6 +104,22 @@ import {
     getAllLongWeekdayNames,
     getAllShortWeekdayNames,
     getAllMinWeekdayNames,
+    getAllLongDateFormats,
+    getAllShortDateFormats,
+    getAllLongTimeFormats,
+    getAllShortTimeFormats,
+    getI18nLongDateFormat,
+    getI18nShortDateFormat,
+    getI18nLongTimeFormat,
+    getI18nShortTimeFormat,
+    getI18nLongYearFormat,
+    getI18nShortYearFormat,
+    getI18nLongYearMonthFormat,
+    getI18nShortYearMonthFormat,
+    getI18nLongMonthDayFormat,
+    getI18nShortMonthDayFormat,
+    isLongTime24HourFormat,
+    isShortTime24HourFormat,
     getAllTimezones,
     getAllCurrencies,
     getDisplayCurrency,
@@ -186,10 +202,22 @@ app.use(store);
 app.use(i18n);
 
 function setLanguage(locale) {
-    if (settings.getLanguage() !== locale) {
-        settings.setLanguage(locale);
+    if (!locale) {
+        locale = getDefaultLanguage();
+        logger.info(`No specified language, use browser default language ${locale}`);
     }
 
+    if (!getLanguageInfo(locale)) {
+        logger.warn(`Not found language ${locale}`);
+        return null;
+    }
+
+    if (i18n.global.locale === locale) {
+        return locale;
+    }
+
+    logger.info(`Apply current language to ${locale}`);
+
     i18n.global.locale = locale;
     moment.updateLocale(locale, {
         months : app.config.globalProperties.$locale.getAllLongMonthNames(),
@@ -197,6 +225,13 @@ function setLanguage(locale) {
         weekdays : app.config.globalProperties.$locale.getAllLongWeekdayNames(),
         weekdaysShort : app.config.globalProperties.$locale.getAllShortWeekdayNames(),
         weekdaysMin : app.config.globalProperties.$locale.getAllMinWeekdayNames(),
+        meridiem: function (hours) {
+            if (hours > 11) {
+                return i18n.global.t('datetime.PM.upperCase');
+            } else {
+                return i18n.global.t('datetime.AM.upperCase');
+            }
+        }
     });
     services.setLocale(locale);
     document.querySelector('html').setAttribute('lang', locale);
@@ -225,12 +260,13 @@ function setTimezone(timezone) {
 }
 
 function initLocale() {
-    if (settings.getLanguage()) {
-        logger.info(`Current language is ${settings.getLanguage()}`);
-        setLanguage(settings.getLanguage());
+    const lastUserLanguage = store.getters.currentUserLanguage;
+
+    if (lastUserLanguage && getLanguageInfo(lastUserLanguage)) {
+        logger.info(`Last user language is ${lastUserLanguage}`);
+        setLanguage(lastUserLanguage);
     } else {
-        logger.info(`No language is set, use browser default ${getDefaultLanguage()}`);
-        setLanguage(getDefaultLanguage());
+        setLanguage(null);
     }
 
     if (settings.getTimezone()) {
@@ -296,6 +332,24 @@ app.config.globalProperties.$locale = {
     getAllLongWeekdayNames: () => getAllLongWeekdayNames(i18n.global.t),
     getAllShortWeekdayNames: () => getAllShortWeekdayNames(i18n.global.t),
     getAllMinWeekdayNames: () => getAllMinWeekdayNames(i18n.global.t),
+    getAllLongDateFormats: () => getAllLongDateFormats(i18n.global.t),
+    getAllShortDateFormats: () => getAllShortDateFormats(i18n.global.t),
+    getAllLongTimeFormats: () => getAllLongTimeFormats(i18n.global.t),
+    getAllShortTimeFormats: () => getAllShortTimeFormats(i18n.global.t),
+    getLongDateTimeFormat: () => getI18nLongDateFormat(i18n.global.t, store.getters.currentUserLongDateFormat) + ' ' + getI18nLongTimeFormat(i18n.global.t, store.getters.currentUserLongTimeFormat),
+    getShortDateTimeFormat: () => getI18nShortDateFormat(i18n.global.t, store.getters.currentUserShortDateFormat) + ' ' + getI18nShortTimeFormat(i18n.global.t, store.getters.currentUserShortTimeFormat),
+    getLongDateFormat: () => getI18nLongDateFormat(i18n.global.t, store.getters.currentUserLongDateFormat),
+    getShortDateFormat: () => getI18nShortDateFormat(i18n.global.t, store.getters.currentUserShortDateFormat),
+    getLongYearFormat: () => getI18nLongYearFormat(i18n.global.t, store.getters.currentUserLongDateFormat),
+    getShortYearFormat: () => getI18nShortYearFormat(i18n.global.t, store.getters.currentUserShortDateFormat),
+    getLongYearMonthFormat: () => getI18nLongYearMonthFormat(i18n.global.t, store.getters.currentUserLongDateFormat),
+    getShortYearMonthFormat: () => getI18nShortYearMonthFormat(i18n.global.t, store.getters.currentUserShortDateFormat),
+    getLongMonthDayFormat: () => getI18nLongMonthDayFormat(i18n.global.t, store.getters.currentUserLongDateFormat),
+    getShortMonthDayFormat: () => getI18nShortMonthDayFormat(i18n.global.t, store.getters.currentUserShortDateFormat),
+    getLongTimeFormat: () => getI18nLongTimeFormat(i18n.global.t, store.getters.currentUserLongTimeFormat),
+    getShortTimeFormat: () => getI18nShortTimeFormat(i18n.global.t, store.getters.currentUserShortTimeFormat),
+    isLongTime24HourFormat: () => isLongTime24HourFormat(i18n.global.t, store.getters.currentUserLongTimeFormat),
+    isShortTime24HourFormat: () => isShortTime24HourFormat(i18n.global.t, store.getters.currentUserShortTimeFormat),
     setLanguage: setLanguage,
     getTimezone: settings.getTimezone,
     setTimezone: setTimezone,

src/store/index.js

@@ -73,9 +73,14 @@ import {
     clearUserInfoState,
     resetState,
     currentUserNickname,
-    currentUserDefaultCurrency,
     currentUserDefaultAccountId,
+    currentUserLanguage,
+    currentUserDefaultCurrency,
     currentUserFirstDayOfWeek,
+    currentUserLongDateFormat,
+    currentUserShortDateFormat,
+    currentUserLongTimeFormat,
+    currentUserShortTimeFormat,
 } from './user.js';
 
 import {
@@ -166,8 +171,13 @@ const stores = {
     strict: !settings.isProduction(),
     state: {
         defaultSetting: {
+            language: '',
             currency: currencyConstants.defaultCurrency,
-            firstDayOfWeek: datetimeConstants.defaultFirstDayOfWeek
+            firstDayOfWeek: datetimeConstants.defaultFirstDayOfWeek,
+            longDateFormat: 0,
+            shortDateFormat: 0,
+            longTimeFormat: 0,
+            shortTimeFormat: 0
         },
         currentUserInfo: userState.getUserInfo(),
         latestExchangeRates: getExchangeRatesFromLocalStorage(),
@@ -210,9 +220,14 @@ const stores = {
     getters: {
         // user
         currentUserNickname,
-        currentUserDefaultCurrency,
         currentUserDefaultAccountId,
+        currentUserLanguage,
+        currentUserDefaultCurrency,
         currentUserFirstDayOfWeek,
+        currentUserLongDateFormat,
+        currentUserShortDateFormat,
+        currentUserLongTimeFormat,
+        currentUserShortTimeFormat,
 
         // exchange rates
         exchangeRatesLastUpdateTime,

src/store/user.js

@@ -133,6 +133,7 @@ export function register(context, { user }) {
             password: user.password,
             email: user.email,
             nickname: user.nickname,
+            language: user.language,
             defaultCurrency: user.defaultCurrency,
             firstDayOfWeek: user.firstDayOfWeek
         }).then(response => {
@@ -235,10 +236,15 @@ export function updateUserProfile(context, { profile, currentPassword }) {
             oldPassword: currentPassword,
             email: profile.email,
             nickname: profile.nickname,
-            defaultCurrency: profile.defaultCurrency,
             defaultAccountId: profile.defaultAccountId,
+            transactionEditScope: profile.transactionEditScope,
+            language: profile.language,
+            defaultCurrency: profile.defaultCurrency,
             firstDayOfWeek: profile.firstDayOfWeek,
-            transactionEditScope: profile.transactionEditScope
+            longDateFormat: profile.longDateFormat,
+            shortDateFormat: profile.shortDateFormat,
+            longTimeFormat: profile.longTimeFormat,
+            shortTimeFormat: profile.shortTimeFormat
         }).then(response => {
             const data = response.data;
 
@@ -391,17 +397,42 @@ export function currentUserNickname(state) {
     return userInfo.nickname || userInfo.username || null;
 }
 
-export function currentUserDefaultCurrency(state) {
-    const userInfo = state.currentUserInfo || {};
-    return userInfo.defaultCurrency || state.defaultSetting.currency;
-}
-
 export function currentUserDefaultAccountId(state) {
     const userInfo = state.currentUserInfo || {};
     return userInfo.defaultAccountId || '';
 }
 
+export function currentUserLanguage(state) {
+    const userInfo = state.currentUserInfo || {};
+    return userInfo.language || state.defaultSetting.language;
+}
+
+export function currentUserDefaultCurrency(state) {
+    const userInfo = state.currentUserInfo || {};
+    return userInfo.defaultCurrency || state.defaultSetting.currency;
+}
+
 export function currentUserFirstDayOfWeek(state) {
     const userInfo = state.currentUserInfo || {};
     return utilities.isNumber(userInfo.firstDayOfWeek) ? userInfo.firstDayOfWeek : state.defaultSetting.firstDayOfWeek;
 }
+
+export function currentUserLongDateFormat(state) {
+    const userInfo = state.currentUserInfo || {};
+    return utilities.isNumber(userInfo.longDateFormat) ? userInfo.longDateFormat : state.defaultSetting.longDateFormat;
+}
+
+export function currentUserShortDateFormat(state) {
+    const userInfo = state.currentUserInfo || {};
+    return utilities.isNumber(userInfo.shortDateFormat) ? userInfo.shortDateFormat : state.defaultSetting.shortDateFormat;
+}
+
+export function currentUserLongTimeFormat(state) {
+    const userInfo = state.currentUserInfo || {};
+    return utilities.isNumber(userInfo.longTimeFormat) ? userInfo.longTimeFormat : state.defaultSetting.longTimeFormat;
+}
+
+export function currentUserShortTimeFormat(state) {
+    const userInfo = state.currentUserInfo || {};
+    return utilities.isNumber(userInfo.shortTimeFormat) ? userInfo.shortTimeFormat : state.defaultSetting.shortTimeFormat;
+}

src/views/mobile/AboutPage.vue

@@ -51,7 +51,7 @@ export default {
                 return this.$buildTime;
             }
 
-            return this.$utilities.formatUnixTime(this.$buildTime, this.$t('format.datetime.long'));
+            return this.$utilities.formatUnixTime(this.$buildTime, this.$locale.getLongDateTimeFormat());
         },
         licenseLines() {
             return this.$licenses.license.replaceAll(/\r/g, '').split('\n');

src/views/mobile/ExchangeRatesPage.vue

@@ -111,7 +111,7 @@ export default {
                 return '';
             }
 
-            return this.$utilities.formatUnixTime(this.exchangeRatesData.updateTime, this.$t('format.date.long'));
+            return this.$utilities.formatUnixTime(this.exchangeRatesData.updateTime, this.$locale.getLongDateFormat());
         },
         exchangeRateMap() {
             const exchangeRateMap = {};

src/views/mobile/HomePage.vue

@@ -235,19 +235,19 @@ export default {
 
             return {
                 today: {
-                    displayTime: self.$utilities.formatUnixTime(self.dateRange.today.startTime, self.$t('format.date.long')),
+                    displayTime: self.$utilities.formatUnixTime(self.dateRange.today.startTime, self.$locale.getLongDateFormat()),
                 },
                 thisWeek: {
-                    startTime: self.$utilities.formatUnixTime(self.dateRange.thisWeek.startTime, self.$t('format.monthDay.long')),
-                    endTime: self.$utilities.formatUnixTime(self.dateRange.thisWeek.endTime, self.$t('format.monthDay.long'))
+                    startTime: self.$utilities.formatUnixTime(self.dateRange.thisWeek.startTime, self.$locale.getLongMonthDayFormat()),
+                    endTime: self.$utilities.formatUnixTime(self.dateRange.thisWeek.endTime, self.$locale.getLongMonthDayFormat())
                 },
                 thisMonth: {
                     displayTime: self.$utilities.formatUnixTime(self.dateRange.thisMonth.startTime, 'MMMM'),
-                    startTime: self.$utilities.formatUnixTime(self.dateRange.thisMonth.startTime, self.$t('format.monthDay.long')),
-                    endTime: self.$utilities.formatUnixTime(self.dateRange.thisMonth.endTime, self.$t('format.monthDay.long'))
+                    startTime: self.$utilities.formatUnixTime(self.dateRange.thisMonth.startTime, self.$locale.getLongMonthDayFormat()),
+                    endTime: self.$utilities.formatUnixTime(self.dateRange.thisMonth.endTime, self.$locale.getLongMonthDayFormat())
                 },
                 thisYear: {
-                    displayTime: self.$utilities.formatUnixTime(self.dateRange.thisYear.startTime, self.$t('format.year.long'))
+                    displayTime: self.$utilities.formatUnixTime(self.dateRange.thisYear.startTime, self.$locale.getLongYearFormat())
                 }
             };
         },

src/views/mobile/LoginPage.vue

@@ -200,6 +200,10 @@ export default {
                     return;
                 }
 
+                if (authResponse.user && authResponse.user.language) {
+                    self.$locale.setLanguage(authResponse.user.language);
+                }
+
                 if (self.$settings.isAutoUpdateExchangeRatesData()) {
                     self.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
                 }
@@ -244,10 +248,14 @@ export default {
                 token: self.tempToken,
                 passcode: self.twoFAVerifyType === 'passcode' ? self.passcode : null,
                 recoveryCode: self.twoFAVerifyType === 'backupcode' ? self.backupCode : null
-            }).then(() => {
+            }).then(authResponse => {
                 self.verifying = false;
                 self.$hideLoading();
 
+                if (authResponse.user && authResponse.user.language) {
+                    self.$locale.setLanguage(authResponse.user.language);
+                }
+
                 if (self.$settings.isAutoUpdateExchangeRatesData()) {
                     self.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
                 }

src/views/mobile/SettingsPage.vue

@@ -16,18 +16,6 @@
         <f7-block-title>{{ $t('Application') }}</f7-block-title>
         <f7-list strong inset dividers>
             <f7-list-item
-                :key="currentLocale + '_lang'"
-                :title="$t('Language')"
-                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Language'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), popupCloseLinkText: $t('Done') }">
-                <select v-model="currentLocale">
-                    <option :value="locale"
-                            :key="locale"
-                            v-for="(lang, locale) in allLanguages">{{ lang.displayName }}</option>
-                </select>
-            </f7-list-item>
-
-            <f7-list-item
-                :key="currentLocale + '_timezone'"
                 :title="$t('Timezone')"
                 smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Timezone'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), popupCloseLinkText: $t('Done') }">
                 <select v-model="currentTimezone">
@@ -57,7 +45,6 @@
             </f7-list-item>
 
             <f7-list-item
-                :key="currentLocale + '_currency_display'"
                 :title="$t('Currency Display Mode')"
                 smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Currency Display Mode'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), popupCloseLinkText: $t('Done') }">
                 <select v-model="currencyDisplayMode">
@@ -117,20 +104,9 @@ export default {
         version() {
             return 'v' + this.$version;
         },
-        allLanguages() {
-            return this.$locale.getAllLanguageInfos();
-        },
         allTimezones() {
             return this.$locale.getAllTimezones(true);
         },
-        currentLocale: {
-            get: function () {
-                return this.$i18n.locale;
-            },
-            set: function (value) {
-                this.$locale.setLanguage(value);
-            }
-        },
         currentTimezone: {
             get: function () {
                 return this.$locale.getTimezone();
@@ -144,7 +120,7 @@ export default {
         },
         exchangeRatesLastUpdateDate() {
             const exchangeRatesLastUpdateTime = this.$store.getters.exchangeRatesLastUpdateTime;
-            return exchangeRatesLastUpdateTime ? this.$utilities.formatUnixTime(exchangeRatesLastUpdateTime, this.$t('format.date.long')) : '';
+            return exchangeRatesLastUpdateTime ? this.$utilities.formatUnixTime(exchangeRatesLastUpdateTime, this.$locale.getLongDateFormat()) : '';
         },
         isAutoUpdateExchangeRatesData: {
             get: function () {

src/views/mobile/SignupPage.vue

@@ -188,6 +188,7 @@ export default {
                 confirmPassword: '',
                 email: '',
                 nickname: '',
+                language: self.$i18n.locale,
                 defaultCurrency: self.$store.state.defaultSetting.currency,
                 firstDayOfWeek: self.$constants.datetime.allWeekDays[self.$t('default.firstDayOfWeek')] ? self.$constants.datetime.allWeekDays[self.$t('default.firstDayOfWeek')].type : 0
             },
@@ -221,6 +222,7 @@ export default {
                 const isCurrencyDefault = this.user.defaultCurrency === this.$store.state.defaultSetting.currency;
                 const isFirstWeekDayDefault = this.user.firstDayOfWeek === (this.$constants.datetime.allWeekDays[this.$t('default.firstDayOfWeek')] ? this.$constants.datetime.allWeekDays[this.$t('default.firstDayOfWeek')].type : 0);
 
+                this.user.language = value;
                 this.$locale.setLanguage(value);
 
                 if (isCurrencyDefault) {
@@ -324,7 +326,7 @@ export default {
 
             self.$store.dispatch('register', {
                 user: self.user
-            }).then(() => {
+            }).then(response => {
                 if (!self.$user.isUserLogined()) {
                     self.submitting = false;
                     self.$hideLoading();
@@ -339,6 +341,10 @@ export default {
                     return;
                 }
 
+                if (response.user && response.user.language) {
+                    self.$locale.setLanguage(response.user.language);
+                }
+
                 if (self.$settings.isAutoUpdateExchangeRatesData()) {
                     self.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
                 }

src/views/mobile/UnlockPage.vue

@@ -113,7 +113,11 @@ export default {
                 self.$hideLoading();
 
                 self.$user.unlockTokenByWebAuthn(id, userName, userSecret);
-                self.$store.dispatch('refreshTokenAndRevokeOldToken');
+                self.$store.dispatch('refreshTokenAndRevokeOldToken').then(response => {
+                    if (response.user && response.user.language) {
+                        self.$locale.setLanguage(response.user.language);
+                    }
+                });
 
                 if (self.$settings.isAutoUpdateExchangeRatesData()) {
                     self.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
@@ -136,34 +140,40 @@ export default {
             });
         },
         unlockByPin(pinCode) {
-            if (!this.isPinCodeValid(pinCode)) {
+            const self = this;
+
+            if (!self.isPinCodeValid(pinCode)) {
                 return;
             }
 
-            if (this.$ui.isModalShowing()) {
+            if (self.$ui.isModalShowing()) {
                 return;
             }
 
-            const router = this.f7router;
-            const user = this.$store.state.currentUserInfo;
+            const router = self.f7router;
+            const user = self.$store.state.currentUserInfo;
 
             if (!user || !user.username) {
-                this.$alert('An error has occurred');
+                self.$alert('An error has occurred');
                 return;
             }
 
             try {
-                this.$user.unlockTokenByPinCode(user.username, pinCode);
-                this.$store.dispatch('refreshTokenAndRevokeOldToken');
+                self.$user.unlockTokenByPinCode(user.username, pinCode);
+                self.$store.dispatch('refreshTokenAndRevokeOldToken').then(response => {
+                    if (response.user && response.user.language) {
+                        self.$locale.setLanguage(response.user.language);
+                    }
+                });
 
-                if (this.$settings.isAutoUpdateExchangeRatesData()) {
-                    this.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
+                if (self.$settings.isAutoUpdateExchangeRatesData()) {
+                    self.$store.dispatch('getLatestExchangeRates', { silent: true, force: false });
                 }
 
                 router.refreshPage();
             } catch (ex) {
-                this.$logger.error('failed to unlock by pin code', ex);
-                this.$toast('PIN code is wrong');
+                self.$logger.error('failed to unlock by pin code', ex);
+                self.$toast('PIN code is wrong');
             }
         },
         relogin() {

src/views/mobile/statistics/TransactionPage.vue

@@ -217,10 +217,10 @@
                     </template>
                     <template #footer>
                         <div v-if="dateRange.type === allDateRanges.Custom.type && query.dateType === allDateRanges.Custom.type && query.startTime && query.endTime">
-                            <span>{{ $utilities.formatUnixTime(query.startTime, $t('format.datetime.long-without-second')) }}</span>
+                            <span>{{ $utilities.formatUnixTime(query.startTime, $locale.getLongDateTimeFormat()) }}</span>
                             <span>&nbsp;-&nbsp;</span>
                             <br/>
-                            <span>{{ $utilities.formatUnixTime(query.endTime, $t('format.datetime.long-without-second')) }}</span>
+                            <span>{{ $utilities.formatUnixTime(query.endTime, $locale.getLongDateTimeFormat()) }}</span>
                         </div>
                     </template>
                 </f7-list-item>
@@ -618,15 +618,15 @@ export default {
             }
 
             if (this.$utilities.isDateRangeMatchFullYears(query.startTime, query.endTime)) {
-                const displayStartTime = this.$utilities.formatUnixTime(query.startTime, this.$t('format.year.short'));
-                const displayEndTime = this.$utilities.formatUnixTime(query.endTime, this.$t('format.year.short'));
+                const displayStartTime = this.$utilities.formatUnixTime(query.startTime, this.$locale.getShortYearFormat());
+                const displayEndTime = this.$utilities.formatUnixTime(query.endTime, this.$locale.getShortYearFormat());
 
                 return displayStartTime !== displayEndTime ? `${displayStartTime} ~ ${displayEndTime}` : displayStartTime;
             }
 
             if (this.$utilities.isDateRangeMatchFullMonths(query.startTime, query.endTime)) {
-                const displayStartTime = this.$utilities.formatUnixTime(query.startTime, this.$t('format.yearMonth.short'));
-                const displayEndTime = this.$utilities.formatUnixTime(query.endTime, this.$t('format.yearMonth.short'));
+                const displayStartTime = this.$utilities.formatUnixTime(query.startTime, this.$locale.getShortYearMonthFormat());
+                const displayEndTime = this.$utilities.formatUnixTime(query.endTime, this.$locale.getShortYearMonthFormat());
 
                 return displayStartTime !== displayEndTime ? `${displayStartTime} ~ ${displayEndTime}` : displayStartTime;
             }
@@ -634,13 +634,13 @@ export default {
             const startTimeYear = this.$utilities.getYear(this.$utilities.parseDateFromUnixTime(query.startTime));
             const endTimeYear = this.$utilities.getYear(this.$utilities.parseDateFromUnixTime(query.endTime));
 
-            const displayStartTime = this.$utilities.formatUnixTime(query.startTime, this.$t('format.date.short'));
-            const displayEndTime = this.$utilities.formatUnixTime(query.endTime, this.$t('format.date.short'));
+            const displayStartTime = this.$utilities.formatUnixTime(query.startTime, this.$locale.getShortDateFormat());
+            const displayEndTime = this.$utilities.formatUnixTime(query.endTime, this.$locale.getShortDateFormat());
 
             if (displayStartTime === displayEndTime) {
                 return displayStartTime;
             } else if (startTimeYear === endTimeYear) {
-                const displayShortEndTime = this.$utilities.formatUnixTime(query.endTime, this.$t('format.monthDay.short'));
+                const displayShortEndTime = this.$utilities.formatUnixTime(query.endTime, this.$locale.getShortMonthDayFormat());
                 return `${displayStartTime} ~ ${displayShortEndTime}`;
             }
 

src/views/mobile/transactions/EditPage.vue

@@ -213,7 +213,7 @@
                 link="#" no-chevron
                 :class="{ 'readonly': mode === 'view' }"
                 :header="$t('Transaction Time')"
-                :title="$utilities.formatUnixTime($utilities.getActualUnixTimeForStore(transaction.time, $utilities.getTimezoneOffsetMinutes(), $utilities.getBrowserTimezoneOffsetMinutes()), this.$t('format.datetime.long'))"
+                :title="$utilities.formatUnixTime($utilities.getActualUnixTimeForStore(transaction.time, $utilities.getTimezoneOffsetMinutes(), $utilities.getBrowserTimezoneOffsetMinutes()), $locale.getLongDateTimeFormat())"
                 @click="showTransactionDateTimeSheet = true"
             >
                 <date-time-selection-sheet v-model:show="showTransactionDateTimeSheet"

src/views/mobile/transactions/ListPage.vue

@@ -123,7 +123,7 @@
                             <f7-list-item>
                                 <template #title>
                                     <small>
-                                        <span>{{ $utilities.formatTime(transactionMonthList.yearMonth, $t('format.yearMonth.long')) }}</span>
+                                        <span>{{ $utilities.formatTime(transactionMonthList.yearMonth, $locale.getLongYearMonthFormat()) }}</span>
                                     </small>
                                     <small class="transaction-amount-statistics" v-if="showTotalAmountInTransactionListPage && transactionMonthList.totalAmount">
                                         <span class="text-color-red">
@@ -202,7 +202,7 @@
                                         </div>
                                         <div class="item-footer">
                                             <div class="transaction-footer">
-                                                <span>{{ $utilities.formatUnixTime(transaction.time, $t('format.hourMinute.long'), transaction.utcOffset, currentTimezoneOffsetMinutes) }}</span>
+                                                <span>{{ $utilities.formatUnixTime(transaction.time, $locale.getShortTimeFormat(), transaction.utcOffset, currentTimezoneOffsetMinutes) }}</span>
                                                 <span v-if="transaction.utcOffset !== currentTimezoneOffsetMinutes">{{ `(UTC${$utilities.getUtcOffsetByUtcOffsetMinutes(transaction.utcOffset)})` }}</span>
                                                 <span v-if="transaction.sourceAccount">·</span>
                                                 <span v-if="transaction.sourceAccount">{{ transaction.sourceAccount.name }}</span>
@@ -252,10 +252,10 @@
                     </template>
                     <template #footer>
                         <div v-if="dateRange.type === $constants.datetime.allDateRanges.Custom.type && query.dateType === $constants.datetime.allDateRanges.Custom.type && query.minTime && query.maxTime">
-                            <span>{{ $utilities.formatUnixTime(query.minTime, $t('format.datetime.long-without-second')) }}</span>
+                            <span>{{ $utilities.formatUnixTime(query.minTime, $locale.getLongDateTimeFormat()) }}</span>
                             <span>&nbsp;-&nbsp;</span>
                             <br/>
-                            <span>{{ $utilities.formatUnixTime(query.maxTime, $t('format.datetime.long-without-second')) }}</span>
+                            <span>{{ $utilities.formatUnixTime(query.maxTime, $locale.getLongDateTimeFormat()) }}</span>
                         </div>
                     </template>
                 </f7-list-item>
@@ -840,6 +840,11 @@ export default {
 </script>
 
 <style>
+.list.transaction-amount-list .transaction-amount-statistics {
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
 .list.transaction-amount-list .transaction-amount-statistics > span {
     margin-left: 8px;
     font-weight: normal;

src/views/mobile/users/SessionListPage.vue

@@ -72,7 +72,7 @@ export default {
                     deviceType: this.$t(token.isCurrent ? 'Current' : 'Other Device'),
                     deviceInfo: this.$utilities.parseDeviceInfo(token.userAgent),
                     icon: this.getTokenIcon(token),
-                    createdAt: this.$utilities.formatUnixTime(token.createdAt, this.$t('format.datetime.long'))
+                    createdAt: this.$utilities.formatUnixTime(token.createdAt, this.$locale.getLongDateTimeFormat())
                 });
             }
 

src/views/mobile/users/UserProfilePage.vue

@@ -16,12 +16,20 @@
         </f7-list>
 
         <f7-list strong inset dividers class="margin-vertical skeleton-text" v-if="loading">
-            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Default Currency" title="Currency" link="#"></f7-list-item>
             <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Default Account" title="Not Specified"></f7-list-item>
-            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="First Day of Week" title="Week Day" link="#"></f7-list-item>
             <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Editable Transaction Scope" title="All" link="#"></f7-list-item>
         </f7-list>
 
+        <f7-list strong inset dividers class="margin-vertical skeleton-text" v-if="loading">
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Default Language" title="Language" link="#"></f7-list-item>
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Default Currency" title="Currency" link="#"></f7-list-item>
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="First Day of Week" title="Week Day" link="#"></f7-list-item>
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Long Date Format" title="YYYY-MM-DD" link="#"></f7-list-item>
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Short Date Format" title="YYYY-MM-DD" link="#"></f7-list-item>
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Long Time Format" title="HH:mm:ss" link="#"></f7-list-item>
+            <f7-list-item class="list-item-with-header-and-title list-item-no-item-after" header="Short Time Format" title="HH:mm" link="#"></f7-list-item>
+        </f7-list>
+
         <f7-list form strong inset dividers class="margin-vertical" v-if="!loading">
             <f7-list-input
                 type="password"
@@ -63,24 +71,6 @@
         </f7-list>
 
         <f7-list form strong inset dividers class="margin-vertical" v-if="!loading">
-            <f7-list-item
-                class="list-item-with-header-and-title list-item-no-item-after"
-                :header="$t('Default Currency')"
-                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Currency Name'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Default Currency'), popupCloseLinkText: $t('Done') }"
-            >
-                <template #title>
-                    <f7-block class="no-padding no-margin">
-                        <span>{{ $t(`currency.${newProfile.defaultCurrency}`) }}&nbsp;</span>
-                        <small class="smaller">{{ newProfile.defaultCurrency }}</small>
-                    </f7-block>
-                </template>
-                <select autocomplete="transaction-currency" v-model="newProfile.defaultCurrency">
-                    <option :value="currency.code"
-                            :key="currency.code"
-                            v-for="currency in allCurrencies">{{ currency.displayName }}</option>
-                </select>
-            </f7-list-item>
-
             <f7-list-item
                 class="list-item-with-header-and-title"
                 link="#" no-chevron
@@ -103,19 +93,6 @@
                 </two-column-list-item-selection-sheet>
             </f7-list-item>
 
-            <f7-list-item
-                class="list-item-with-header-and-title list-item-no-item-after"
-                :header="$t('First Day of Week')"
-                :title="getDayOfWeekName(newProfile.firstDayOfWeek)"
-                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Date'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('First Day of Week'), popupCloseLinkText: $t('Done') }"
-            >
-                <select v-model="newProfile.firstDayOfWeek">
-                    <option :value="weekDay.type"
-                            :key="weekDay.type"
-                            v-for="weekDay in allWeekDays">{{ $t(`datetime.${weekDay.name}.long`) }}</option>
-                </select>
-            </f7-list-item>
-
             <f7-list-item
                 class="list-item-with-header-and-title list-item-no-item-after"
                 :header="$t('Editable Transaction Scope')"
@@ -132,6 +109,105 @@
             <f7-list-item class="ebk-list-item-error-info" v-if="extendInputIsInvalid" :footer="$t(extendInputInvalidProblemMessage)"></f7-list-item>
         </f7-list>
 
+        <f7-list form strong inset dividers class="margin-vertical" v-if="!loading">
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('Language')"
+                :title="currentLanguageName"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Language'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Language'), popupCloseLinkText: $t('Done') }">
+                <select v-model="newProfile.language">
+                    <option :value="language.code"
+                            :key="language.code"
+                            v-for="language in allLanguages">{{ language.displayName }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('Default Currency')"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Currency Name'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Default Currency'), popupCloseLinkText: $t('Done') }"
+            >
+                <template #title>
+                    <f7-block class="no-padding no-margin">
+                        <span>{{ $t(`currency.${newProfile.defaultCurrency}`) }}&nbsp;</span>
+                        <small class="smaller">{{ newProfile.defaultCurrency }}</small>
+                    </f7-block>
+                </template>
+                <select autocomplete="transaction-currency" v-model="newProfile.defaultCurrency">
+                    <option :value="currency.code"
+                            :key="currency.code"
+                            v-for="currency in allCurrencies">{{ currency.displayName }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('First Day of Week')"
+                :title="currentDayOfWeekName"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Date'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('First Day of Week'), popupCloseLinkText: $t('Done') }"
+            >
+                <select v-model="newProfile.firstDayOfWeek">
+                    <option :value="weekDay.type"
+                            :key="weekDay.type"
+                            v-for="weekDay in allWeekDays">{{ $t(`datetime.${weekDay.name}.long`) }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('Long Date Format')"
+                :title="$utilities.getNameByKeyValue(allLongDateFormats, newProfile.longDateFormat, 'type', 'displayName')"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Long Date Format'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Long Date Format'), popupCloseLinkText: $t('Done') }"
+            >
+                <select v-model="newProfile.longDateFormat">
+                    <option :value="format.type"
+                            :key="format.type"
+                            v-for="format in allLongDateFormats">{{ format.displayName }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('Short Date Format')"
+                :title="$utilities.getNameByKeyValue(allShortDateFormats, newProfile.shortDateFormat, 'type', 'displayName')"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Short Date Format'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Short Date Format'), popupCloseLinkText: $t('Done') }"
+            >
+                <select v-model="newProfile.shortDateFormat">
+                    <option :value="format.type"
+                            :key="format.type"
+                            v-for="format in allShortDateFormats">{{ format.displayName }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('Long Time Format')"
+                :title="$utilities.getNameByKeyValue(allLongTimeFormats, newProfile.longTimeFormat, 'type', 'displayName')"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Long Time Format'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Long Time Format'), popupCloseLinkText: $t('Done') }"
+            >
+                <select v-model="newProfile.longTimeFormat">
+                    <option :value="format.type"
+                            :key="format.type"
+                            v-for="format in allLongTimeFormats">{{ format.displayName }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item
+                class="list-item-with-header-and-title list-item-no-item-after"
+                :header="$t('Short Time Format')"
+                :title="$utilities.getNameByKeyValue(allShortTimeFormats, newProfile.shortTimeFormat, 'type', 'displayName')"
+                smart-select :smart-select-params="{ openIn: 'popup', popupPush: true, closeOnSelect: true, scrollToSelectedItem: true, searchbar: true, searchbarPlaceholder: $t('Long Time Format'), searchbarDisableText: $t('Cancel'), appendSearchbarNotFound: $t('No results'), pageTitle: $t('Short Time Format'), popupCloseLinkText: $t('Done') }"
+            >
+                <select v-model="newProfile.shortTimeFormat">
+                    <option :value="format.type"
+                            :key="format.type"
+                            v-for="format in allShortTimeFormats">{{ format.displayName }}</option>
+                </select>
+            </f7-list-item>
+
+            <f7-list-item class="ebk-list-item-error-info" v-if="langAndRegionInputIsInvalid" :footer="$t(langAndRegionInputInvalidProblemMessage)"></f7-list-item>
+        </f7-list>
+
         <password-input-sheet :title="$t('Modify Password')"
                               :hint="$t('Please enter your current password when modifying your password')"
                               :confirm-disabled="saving"
@@ -155,18 +231,28 @@ export default {
                 confirmPassword: '',
                 email: '',
                 nickname: '',
-                defaultCurrency: '',
                 defaultAccountId: '',
+                transactionEditScope: 1,
+                language: '',
+                defaultCurrency: '',
                 firstDayOfWeek: 0,
-                transactionEditScope: 1
+                longDateFormat: 0,
+                shortDateFormat: 0,
+                longTimeFormat: 0,
+                shortTimeFormat: 0
             },
             oldProfile: {
                 email: '',
                 nickname: '',
-                defaultCurrency: '',
                 defaultAccountId: '',
+                transactionEditScope: 1,
+                language: '',
+                defaultCurrency: '',
                 firstDayOfWeek: 0,
-                transactionEditScope: 1
+                longDateFormat: 0,
+                shortDateFormat: 0,
+                longTimeFormat: 0,
+                shortTimeFormat: 0
             },
             currentPassword: '',
             loading: true,
@@ -177,6 +263,30 @@ export default {
         };
     },
     computed: {
+        allLanguages() {
+            const ret = [];
+            const allLanguageInfo = this.$locale.getAllLanguageInfos();
+
+            ret.push({
+                code: '',
+                displayName: this.$t('System Default')
+            });
+
+            for (let code in allLanguageInfo) {
+                if (!Object.prototype.hasOwnProperty.call(allLanguageInfo, code)) {
+                    continue;
+                }
+
+                const languageInfo = allLanguageInfo[code];
+
+                ret.push({
+                    code: code,
+                    displayName: languageInfo.displayName
+                });
+            }
+
+            return ret;
+        },
         allCurrencies() {
             return this.$locale.getAllCurrencies();
         },
@@ -192,6 +302,18 @@ export default {
         allWeekDays() {
             return this.$constants.datetime.allWeekDays;
         },
+        allLongDateFormats() {
+            return this.$locale.getAllLongDateFormats();
+        },
+        allShortDateFormats() {
+            return this.$locale.getAllShortDateFormats();
+        },
+        allLongTimeFormats() {
+            return this.$locale.getAllLongTimeFormats();
+        },
+        allShortTimeFormats() {
+            return this.$locale.getAllShortTimeFormats();
+        },
         allTransactionEditScopeTypes() {
             return [{
                 value: 0,
@@ -216,6 +338,20 @@ export default {
                 name: 'This year or later'
             }];
         },
+        currentLanguageName() {
+            for (let i = 0; i < this.allLanguages.length; i++) {
+                if (this.allLanguages[i].code === this.newProfile.language) {
+                    return this.allLanguages[i].displayName;
+                }
+            }
+
+            return this.$t('Unknown');
+        },
+        currentDayOfWeekName() {
+            const weekName = this.$utilities.getNameByKeyValue(this.$constants.datetime.allWeekDays, this.newProfile.firstDayOfWeek, 'type', 'name');
+            const i18nWeekNameKey = `datetime.${weekName}.long`;
+            return this.$t(i18nWeekNameKey);
+        },
         inputIsNotChanged() {
             return !!this.inputIsNotChangedProblemMessage;
         },
@@ -225,16 +361,24 @@ export default {
         extendInputIsInvalid() {
             return !!this.extendInputInvalidProblemMessage;
         },
+        langAndRegionInputIsInvalid() {
+            return !!this.langAndRegionInputInvalidProblemMessage;
+        },
         inputIsNotChangedProblemMessage() {
             if (!this.newProfile.password && !this.newProfile.confirmPassword && !this.newProfile.email && !this.newProfile.nickname) {
                 return 'Nothing has been modified';
             } else if (!this.newProfile.password && !this.newProfile.confirmPassword &&
                 this.newProfile.email === this.oldProfile.email &&
                 this.newProfile.nickname === this.oldProfile.nickname &&
-                this.newProfile.defaultCurrency === this.oldProfile.defaultCurrency &&
                 this.newProfile.defaultAccountId === this.oldProfile.defaultAccountId &&
+                this.newProfile.transactionEditScope === this.oldProfile.transactionEditScope &&
+                this.newProfile.language === this.oldProfile.language &&
+                this.newProfile.defaultCurrency === this.oldProfile.defaultCurrency &&
                 this.newProfile.firstDayOfWeek === this.oldProfile.firstDayOfWeek &&
-                this.newProfile.transactionEditScope === this.oldProfile.transactionEditScope) {
+                this.newProfile.longDateFormat === this.oldProfile.longDateFormat &&
+                this.newProfile.shortDateFormat === this.oldProfile.shortDateFormat &&
+                this.newProfile.longTimeFormat === this.oldProfile.longTimeFormat &&
+                this.newProfile.shortTimeFormat === this.oldProfile.shortTimeFormat) {
                 return 'Nothing has been modified';
             } else if (!this.newProfile.password && this.newProfile.confirmPassword) {
                 return 'Password cannot be empty';
@@ -258,6 +402,9 @@ export default {
             }
         },
         extendInputInvalidProblemMessage() {
+            return null;
+        },
+        langAndRegionInputInvalidProblemMessage() {
             if (!this.newProfile.defaultCurrency) {
                 return 'Default currency cannot be empty';
             } else {
@@ -277,21 +424,7 @@ export default {
 
         Promise.all(promises).then(responses => {
             const profile = responses[1];
-
-            self.oldProfile.email = profile.email;
-            self.oldProfile.nickname = profile.nickname;
-            self.oldProfile.defaultCurrency = profile.defaultCurrency;
-            self.oldProfile.defaultAccountId = profile.defaultAccountId;
-            self.oldProfile.firstDayOfWeek = profile.firstDayOfWeek;
-            self.oldProfile.transactionEditScope = profile.transactionEditScope;
-
-            self.newProfile.email = self.oldProfile.email
-            self.newProfile.nickname = self.oldProfile.nickname;
-            self.newProfile.defaultCurrency = self.oldProfile.defaultCurrency;
-            self.newProfile.defaultAccountId = self.oldProfile.defaultAccountId;
-            self.newProfile.firstDayOfWeek = self.oldProfile.firstDayOfWeek;
-            self.newProfile.transactionEditScope = self.oldProfile.transactionEditScope;
-
+            self.setCurrentUserProfile(profile);
             self.loading = false;
         }).catch(error => {
             if (error.processed) {
@@ -312,7 +445,7 @@ export default {
 
             self.showInputPasswordSheet = false;
 
-            let problemMessage = self.inputIsNotChangedProblemMessage || self.inputInvalidProblemMessage || self.extendInputInvalidProblemMessage;
+            let problemMessage = self.inputIsNotChangedProblemMessage || self.inputInvalidProblemMessage || self.extendInputInvalidProblemMessage || self.langAndRegionInputInvalidProblemMessage;
 
             if (problemMessage) {
                 self.$alert(problemMessage);
@@ -330,11 +463,16 @@ export default {
             self.$store.dispatch('updateUserProfile', {
                 profile: self.newProfile,
                 currentPassword: self.currentPassword
-            }).then(() => {
+            }).then(response => {
                 self.saving = false;
                 self.$hideLoading();
                 self.currentPassword = '';
 
+                if (response.user) {
+                    self.setCurrentUserProfile(response.user);
+                    self.$locale.setLanguage(response.user.language);
+                }
+
                 self.$toast('Your profile has been successfully updated');
                 router.back();
             }).catch(error => {
@@ -347,10 +485,30 @@ export default {
                 }
             });
         },
-        getDayOfWeekName(dayOfWeek) {
-            const weekName = this.$utilities.getNameByKeyValue(this.$constants.datetime.allWeekDays, dayOfWeek, 'type', 'name');
-            const i18nWeekNameKey = `datetime.${weekName}.long`;
-            return this.$t(i18nWeekNameKey);
+        setCurrentUserProfile(profile) {
+            this.oldProfile.email = profile.email;
+            this.oldProfile.nickname = profile.nickname;
+            this.oldProfile.defaultAccountId = profile.defaultAccountId;
+            this.oldProfile.transactionEditScope = profile.transactionEditScope;
+            this.oldProfile.language = profile.language;
+            this.oldProfile.defaultCurrency = profile.defaultCurrency;
+            this.oldProfile.firstDayOfWeek = profile.firstDayOfWeek;
+            this.oldProfile.longDateFormat = profile.longDateFormat;
+            this.oldProfile.shortDateFormat = profile.shortDateFormat;
+            this.oldProfile.longTimeFormat = profile.longTimeFormat;
+            this.oldProfile.shortTimeFormat = profile.shortTimeFormat;
+
+            this.newProfile.email = this.oldProfile.email
+            this.newProfile.nickname = this.oldProfile.nickname;
+            this.newProfile.defaultAccountId = this.oldProfile.defaultAccountId;
+            this.newProfile.transactionEditScope = this.oldProfile.transactionEditScope;
+            this.newProfile.language = this.oldProfile.language;
+            this.newProfile.defaultCurrency = this.oldProfile.defaultCurrency;
+            this.newProfile.firstDayOfWeek = this.oldProfile.firstDayOfWeek;
+            this.newProfile.longDateFormat = this.oldProfile.longDateFormat;
+            this.newProfile.shortDateFormat = this.oldProfile.shortDateFormat;
+            this.newProfile.longTimeFormat = this.oldProfile.longTimeFormat;
+            this.newProfile.shortTimeFormat = this.oldProfile.shortTimeFormat;
         }
     }
 };