Files
ezbookkeeping/pkg/services/transactions.go
T
2021-01-03 14:41:17 +08:00

1074 lines
39 KiB
Go

package services
import (
"fmt"
"time"
"xorm.io/xorm"
"github.com/mayswind/lab/pkg/datastore"
"github.com/mayswind/lab/pkg/errs"
"github.com/mayswind/lab/pkg/models"
"github.com/mayswind/lab/pkg/utils"
"github.com/mayswind/lab/pkg/uuid"
)
// TransactionService represents transaction service
type TransactionService struct {
ServiceUsingDB
ServiceUsingUuid
}
// Initialize a transaction service singleton instance
var (
Transactions = &TransactionService{
ServiceUsingDB: ServiceUsingDB{
container: datastore.Container,
},
ServiceUsingUuid: ServiceUsingUuid{
container: uuid.Container,
},
}
)
// GetAllTransactionsByMaxTime returns all transactions before given time
func (s *TransactionService) GetAllTransactionsByMaxTime(uid int64, maxTime int64, count int) ([]*models.Transaction, error) {
return s.GetTransactionsByMaxTime(uid, maxTime, 0, 0, 0, 0, "", count)
}
// GetTransactionsByMaxTime returns transactions before given time
func (s *TransactionService) GetTransactionsByMaxTime(uid int64, maxTime int64, minTime int64, transactionType models.TransactionDbType, categoryId int64, accountId int64, keyword string, count int) ([]*models.Transaction, error) {
if uid <= 0 {
return nil, errs.ErrUserIdInvalid
}
if count < 1 {
return nil, errs.ErrPageCountInvalid
}
var transactions []*models.Transaction
var err error
condition := "uid=? AND deleted=?"
conditionParams := make([]interface{}, 0, 16)
conditionParams = append(conditionParams, uid)
conditionParams = append(conditionParams, false)
if models.TRANSACTION_DB_TYPE_MODIFY_BALANCE <= transactionType && transactionType <= models.TRANSACTION_DB_TYPE_EXPENSE {
condition = condition + " AND type=?"
conditionParams = append(conditionParams, transactionType)
} else if transactionType == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transactionType == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
if accountId == 0 {
condition = condition + " AND type=?"
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_OUT)
} else {
condition = condition + " AND (type=? OR type=?)"
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_OUT)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_IN)
}
} else {
if accountId == 0 {
condition = condition + " AND (type=? OR type=? OR type=? OR type=?)"
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_MODIFY_BALANCE)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_INCOME)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_EXPENSE)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_OUT)
}
}
if categoryId > 0 {
condition = condition + " AND category_id=?"
conditionParams = append(conditionParams, categoryId)
}
if accountId > 0 {
condition = condition + " AND account_id=?"
conditionParams = append(conditionParams, accountId)
}
if keyword != "" {
condition = condition + " AND comment LIKE ?"
conditionParams = append(conditionParams, "%%"+keyword+"%%")
}
if maxTime > 0 {
condition = condition + " AND transaction_time<=?"
conditionParams = append(conditionParams, maxTime)
}
if minTime > 0 {
condition = condition + " AND transaction_time>=?"
conditionParams = append(conditionParams, minTime)
}
err = s.UserDataDB(uid).Where(condition, conditionParams...).Limit(count, 0).OrderBy("transaction_time desc").Find(&transactions)
return transactions, err
}
// GetTransactionsInMonthByPage returns transactions in given year and month
func (s *TransactionService) GetTransactionsInMonthByPage(uid int64, year int, month int, transactionType models.TransactionDbType, categoryId int64, accountId int64, keyword string, page int, count int) ([]*models.Transaction, error) {
if uid <= 0 {
return nil, errs.ErrUserIdInvalid
}
if page < 1 {
return nil, errs.ErrPageIndexInvalid
}
if count < 1 {
return nil, errs.ErrPageCountInvalid
}
startTime, err := utils.ParseFromLongDateTime(fmt.Sprintf("%d-%d-01 00:00:00", year, month))
if err != nil {
return nil, errs.ErrSystemError
}
endTime := startTime.AddDate(0, 1, 0)
startUnixTime := startTime.Unix()
endUnixTime := endTime.Unix()
var transactions []*models.Transaction
condition := "uid=? AND deleted=? AND transaction_time>=? AND transaction_time<?"
conditionParams := make([]interface{}, 0, 16)
conditionParams = append(conditionParams, uid)
conditionParams = append(conditionParams, false)
conditionParams = append(conditionParams, startUnixTime)
conditionParams = append(conditionParams, endUnixTime)
if models.TRANSACTION_DB_TYPE_MODIFY_BALANCE <= transactionType && transactionType <= models.TRANSACTION_DB_TYPE_EXPENSE {
condition = condition + " AND type=?"
conditionParams = append(conditionParams, transactionType)
} else if transactionType == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transactionType == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
if accountId == 0 {
condition = condition + " AND type=?"
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_OUT)
} else {
condition = condition + " AND (type=? OR type=?)"
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_OUT)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_IN)
}
} else {
if accountId == 0 {
condition = condition + " AND (type=? OR type=? OR type=? OR type=?)"
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_MODIFY_BALANCE)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_INCOME)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_EXPENSE)
conditionParams = append(conditionParams, models.TRANSACTION_DB_TYPE_TRANSFER_OUT)
}
}
if categoryId > 0 {
condition = condition + " AND category_id=?"
conditionParams = append(conditionParams, categoryId)
}
if accountId > 0 {
condition = condition + " AND account_id=?"
conditionParams = append(conditionParams, accountId)
}
if keyword != "" {
condition = condition + " AND comment LIKE ?"
conditionParams = append(conditionParams, "%%"+keyword+"%%")
}
err = s.UserDataDB(uid).Where(condition, conditionParams...).Limit(count, count*(page-1)).OrderBy("transaction_time desc").Find(&transactions)
return transactions, err
}
// GetTransactionByTransactionId returns a transaction model according to transaction id
func (s *TransactionService) GetTransactionByTransactionId(uid int64, transactionId int64) (*models.Transaction, error) {
if uid <= 0 {
return nil, errs.ErrUserIdInvalid
}
if transactionId <= 0 {
return nil, errs.ErrTransactionIdInvalid
}
transaction := &models.Transaction{}
has, err := s.UserDataDB(uid).ID(transactionId).Where("uid=? AND deleted=?", uid, false).Get(transaction)
if err != nil {
return nil, err
} else if !has {
return nil, errs.ErrTransactionNotFound
}
return transaction, nil
}
// GetAllTransactionCount returns total count of transactions
func (s *TransactionService) GetAllTransactionCount(uid int64) (int64, error) {
if uid <= 0 {
return 0, errs.ErrUserIdInvalid
}
return s.UserDataDB(uid).Where("uid=? AND deleted=?", uid, false).Count(&models.Transaction{})
}
// GetMonthTransactionCount returns total count of transactions in given year and month
func (s *TransactionService) GetMonthTransactionCount(uid int64, year int64, month int64) (int64, error) {
if uid <= 0 {
return 0, errs.ErrUserIdInvalid
}
startTime, err := utils.ParseFromLongDateTime(fmt.Sprintf("%d-%d-01 00:00:00", year, month))
if err != nil {
return 0, errs.ErrSystemError
}
endTime := startTime.AddDate(0, 1, 0)
startUnixTime := startTime.Unix()
endUnixTime := endTime.Unix()
return s.UserDataDB(uid).Where("uid=? AND deleted=? AND transaction_time>=? AND transaction_time<?", uid, false, startUnixTime, endUnixTime).Count(&models.Transaction{})
}
// CreateTransaction saves a new transaction to database
func (s *TransactionService) CreateTransaction(transaction *models.Transaction, tagIds []int64) error {
if transaction.Uid <= 0 {
return errs.ErrUserIdInvalid
}
// Check whether account id is valid
err := s.isAccountIdValid(transaction)
if err != nil {
return err
}
now := time.Now().Unix()
transaction.TransactionId = s.GenerateUuid(uuid.UUID_TYPE_TRANSACTION)
transaction.TransactionTime = utils.GetMinTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
transaction.CreatedUnixTime = now
transaction.UpdatedUnixTime = now
tagIds = utils.ToUniqueInt64Slice(tagIds)
transactionTagIndexs := make([]*models.TransactionTagIndex, len(tagIds))
for i := 0; i < len(tagIds); i++ {
transactionTagIndexs[i] = &models.TransactionTagIndex{
Uid: transaction.Uid,
TagId: tagIds[i],
TransactionId: transaction.TransactionId,
CreatedUnixTime: now,
UpdatedUnixTime: now,
}
}
return s.UserDataDB(transaction.Uid).DoTransaction(func(sess *xorm.Session) error {
// Get and verify source and destination account
sourceAccount, destinationAccount, err := s.getAccountModels(sess, transaction)
if err != nil {
return err
}
if sourceAccount.Hidden || (destinationAccount != nil && destinationAccount.Hidden) {
return errs.ErrCannotAddTransactionToHiddenAccount
}
if (transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN) &&
sourceAccount.Currency == destinationAccount.Currency && transaction.Amount != transaction.RelatedAccountAmount {
return errs.ErrTransactionSourceAndDestinationAmountNotEqual
}
// Get and verify category
err = s.isCategoryValid(sess, transaction)
if err != nil {
return err
}
// Get and verify tags
err = s.isTagsValid(sess, transaction, transactionTagIndexs, tagIds)
if err != nil {
return err
}
// Verify balance modification transaction and calculate real amount
if transaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
otherTransactionExists, err := sess.Cols("uid", "deleted", "account_id").Where("uid=? AND deleted=? AND account_id=?", transaction.Uid, false, sourceAccount.AccountId).Limit(1).Exist(&models.Transaction{})
if err != nil {
return err
} else if otherTransactionExists {
return errs.ErrBalanceModificationTransactionCannotAddWhenNotEmpty
}
transaction.RelatedAccountId = transaction.TransactionId
transaction.RelatedAccountAmount = transaction.Amount - sourceAccount.Balance
}
// Insert transaction row
var relatedTransaction *models.Transaction
if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
relatedTransaction = s.GetRelatedTransferTransaction(transaction, s.GenerateUuid(uuid.UUID_TYPE_TRANSACTION))
transaction.RelatedId = relatedTransaction.TransactionId
}
createdRows, err := sess.Insert(transaction)
if err != nil || createdRows < 1 { // maybe another transaction has same time
sameSecondLatestTransaction := &models.Transaction{}
minTransactionTime := utils.GetMinTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
maxTransactionTime := utils.GetMaxTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
has, err := sess.Where("uid=? AND deleted=? AND transaction_time>=? AND transaction_time<=?", transaction.Uid, false, minTransactionTime, maxTransactionTime).OrderBy("transaction_time desc").Limit(1).Get(sameSecondLatestTransaction)
if err != nil {
return err
} else if !has {
return errs.ErrDatabaseOperationFailed
} else if sameSecondLatestTransaction.TransactionTime == maxTransactionTime-1 {
return errs.ErrTooMuchTransactionInOneSecond
}
transaction.TransactionTime = sameSecondLatestTransaction.TransactionTime + 1
createdRows, err := sess.Insert(transaction)
if err != nil {
return err
} else if createdRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
if relatedTransaction != nil {
relatedTransaction.TransactionTime = transaction.TransactionTime + 1
if utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime) != utils.GetUnixTimeFromTransactionTime(relatedTransaction.TransactionTime) {
return errs.ErrTooMuchTransactionInOneSecond
}
createdRows, err := sess.Insert(relatedTransaction)
if err != nil {
return err
} else if createdRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
err = nil
// Insert transaction tag index
if len(transactionTagIndexs) > 0 {
for i := 0; i < len(transactionTagIndexs); i++ {
transactionTagIndex := transactionTagIndexs[i]
_, err := sess.Insert(transactionTagIndex)
if err != nil {
return err
}
}
}
// Update account table
if transaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", transaction.RelatedAccountAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_INCOME {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", transaction.Amount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_EXPENSE {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", transaction.Amount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedSourceRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", transaction.Amount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedSourceRows < 1 {
return errs.ErrDatabaseOperationFailed
}
destinationAccount.UpdatedUnixTime = time.Now().Unix()
updatedDestinationRows, err := sess.ID(destinationAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", transaction.RelatedAccountAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", destinationAccount.Uid, false).Update(destinationAccount)
if err != nil {
return err
} else if updatedDestinationRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
return errs.ErrTransactionTypeInvalid
}
return err
})
}
// ModifyTransaction saves an existed transaction to database
func (s *TransactionService) ModifyTransaction(transaction *models.Transaction, addTagIds []int64, removeTagIds []int64) error {
if transaction.Uid <= 0 {
return errs.ErrUserIdInvalid
}
updateCols := make([]string, 0, 16)
now := time.Now().Unix()
transaction.TransactionTime = utils.GetMinTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
transaction.UpdatedUnixTime = now
updateCols = append(updateCols, "updated_unix_time")
addTagIds = utils.ToUniqueInt64Slice(addTagIds)
removeTagIds = utils.ToUniqueInt64Slice(removeTagIds)
transactionTagIndexs := make([]*models.TransactionTagIndex, len(addTagIds))
for i := 0; i < len(addTagIds); i++ {
transactionTagIndexs[i] = &models.TransactionTagIndex{
Uid: transaction.Uid,
TagId: addTagIds[i],
TransactionId: transaction.TransactionId,
CreatedUnixTime: now,
UpdatedUnixTime: now,
}
}
err := s.UserDB().DoTransaction(func(sess *xorm.Session) error {
// Get and verify current transaction
oldTransaction := &models.Transaction{}
has, err := sess.ID(transaction.TransactionId).Where("uid=? AND deleted=?", transaction.Uid, false).Get(oldTransaction)
if err != nil {
return err
} else if !has {
return errs.ErrTransactionNotFound
}
transaction.Type = oldTransaction.Type
if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
transaction.RelatedId = oldTransaction.RelatedId
}
// Check whether account id is valid
err = s.isAccountIdValid(transaction)
if err != nil {
return err
}
// Get and verify source and destination account (if necessary)
sourceAccount, destinationAccount, err := s.getAccountModels(sess, transaction)
if err != nil {
return err
}
if sourceAccount.Hidden || (destinationAccount != nil && destinationAccount.Hidden) {
return errs.ErrCannotModifyTransactionInHiddenAccount
}
if (transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN) &&
sourceAccount.Currency == destinationAccount.Currency && transaction.Amount != transaction.RelatedAccountAmount {
return errs.ErrTransactionSourceAndDestinationAmountNotEqual
}
oldSourceAccount, oldDestinationAccount, err := s.getOldAccountModels(sess, transaction, oldTransaction, sourceAccount, destinationAccount)
if err != nil {
return err
}
if oldSourceAccount.Hidden || (oldDestinationAccount != nil && oldDestinationAccount.Hidden) {
return errs.ErrCannotAddTransactionToHiddenAccount
}
// Append modified columns and verify
if transaction.CategoryId != oldTransaction.CategoryId {
// Get and verify category
err = s.isCategoryValid(sess, transaction)
if err != nil {
return err
}
updateCols = append(updateCols, "category_id")
}
if utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime) != utils.GetUnixTimeFromTransactionTime(oldTransaction.TransactionTime) {
sameSecondLatestTransaction := &models.Transaction{}
minTransactionTime := utils.GetMinTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
maxTransactionTime := utils.GetMaxTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
has, err = sess.Where("uid=? AND deleted=? AND transaction_time>=? AND transaction_time<=?", transaction.Uid, false, minTransactionTime, maxTransactionTime).OrderBy("transaction_time desc").Limit(1).Get(sameSecondLatestTransaction)
if err != nil {
return err
}
if has && sameSecondLatestTransaction.TransactionTime < maxTransactionTime-1 {
transaction.TransactionTime = sameSecondLatestTransaction.TransactionTime + 1
} else if has && sameSecondLatestTransaction.TransactionTime == maxTransactionTime-1 {
return errs.ErrTooMuchTransactionInOneSecond
}
updateCols = append(updateCols, "transaction_time")
}
if transaction.AccountId != oldTransaction.AccountId {
updateCols = append(updateCols, "account_id")
}
if transaction.Amount != oldTransaction.Amount {
if oldTransaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
originalBalance := sourceAccount.Balance - oldTransaction.RelatedAccountAmount
transaction.RelatedAccountAmount = transaction.Amount - originalBalance
updateCols = append(updateCols, "related_account_amount")
}
updateCols = append(updateCols, "amount")
}
if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
if transaction.RelatedAccountId != oldTransaction.RelatedAccountId {
updateCols = append(updateCols, "related_account_id")
}
if transaction.RelatedAccountAmount != oldTransaction.RelatedAccountAmount {
updateCols = append(updateCols, "related_account_amount")
}
}
if transaction.Comment != oldTransaction.Comment {
updateCols = append(updateCols, "comment")
}
// Get and verify tags
err = s.isTagsValid(sess, transaction, transactionTagIndexs, addTagIds)
if err != nil {
return err
}
// Update transaction row
updatedRows, err := sess.ID(transaction.TransactionId).Cols(updateCols...).Where("uid=? AND deleted=?", transaction.Uid, false).Update(transaction)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrTransactionNotFound
}
if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
relatedTransaction := s.GetRelatedTransferTransaction(transaction, transaction.RelatedId)
if utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime) != utils.GetUnixTimeFromTransactionTime(relatedTransaction.TransactionTime) {
return errs.ErrTooMuchTransactionInOneSecond
}
updatedRows, err := sess.ID(relatedTransaction.TransactionId).Cols(updateCols...).Where("uid=? AND deleted=?", relatedTransaction.Uid, false).Update(relatedTransaction)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
// Update transaction tag index
if len(removeTagIds) > 0 {
deletedRows, err := sess.Where("uid=?", transaction.Uid).In("tag_id", removeTagIds).Delete(&models.TransactionTagIndex{})
if err != nil {
return err
} else if deletedRows < 1 {
return errs.ErrTransactionTagNotFound
}
}
if len(transactionTagIndexs) > 0 {
for i := 0; i < len(transactionTagIndexs); i++ {
transactionTagIndex := transactionTagIndexs[i]
_, err := sess.Insert(transactionTagIndex)
if err != nil {
return err
}
}
}
// Update account table
if oldTransaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
if transaction.AccountId != oldTransaction.AccountId {
return errs.ErrBalanceModificationTransactionCannotChangeAccountId
}
if transaction.RelatedAccountAmount != oldTransaction.RelatedAccountAmount {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)+(%d)", oldTransaction.RelatedAccountAmount, transaction.RelatedAccountAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_INCOME {
var oldAccountNewAmount int64 = 0
var newAccountNewAmount int64 = 0
if transaction.AccountId == oldTransaction.AccountId {
oldAccountNewAmount = transaction.Amount
} else if transaction.AccountId != oldTransaction.AccountId {
newAccountNewAmount = transaction.Amount
}
if oldAccountNewAmount != oldTransaction.Amount {
oldSourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(oldSourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)+(%d)", oldTransaction.Amount, oldAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", oldSourceAccount.Uid, false).Update(oldSourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
if newAccountNewAmount != 0 {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", newAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_EXPENSE {
var oldAccountNewAmount int64 = 0
var newAccountNewAmount int64 = 0
if transaction.AccountId == oldTransaction.AccountId {
oldAccountNewAmount = transaction.Amount
} else if transaction.AccountId != oldTransaction.AccountId {
newAccountNewAmount = transaction.Amount
}
if oldAccountNewAmount != oldTransaction.Amount {
oldSourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(oldSourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)-(%d)", oldTransaction.Amount, oldAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", oldSourceAccount.Uid, false).Update(oldSourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
if newAccountNewAmount != 0 {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", newAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
var oldSourceAccountNewAmount int64 = 0
var newSourceAccountNewAmount int64 = 0
if transaction.AccountId == oldTransaction.AccountId {
oldSourceAccountNewAmount = transaction.Amount
} else if transaction.AccountId != oldTransaction.AccountId {
newSourceAccountNewAmount = transaction.Amount
}
if oldSourceAccountNewAmount != oldTransaction.Amount {
oldSourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(oldSourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)-(%d)", oldTransaction.Amount, oldSourceAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", oldSourceAccount.Uid, false).Update(oldSourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
if newSourceAccountNewAmount != 0 {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", newSourceAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
var oldDestinationAccountNewAmount int64 = 0
var newDestinationAccountNewAmount int64 = 0
if transaction.RelatedAccountId == oldTransaction.RelatedAccountId {
oldDestinationAccountNewAmount = transaction.RelatedAccountAmount
} else if transaction.RelatedAccountId != oldTransaction.RelatedAccountId {
newDestinationAccountNewAmount = transaction.RelatedAccountAmount
}
if oldDestinationAccountNewAmount != oldTransaction.RelatedAccountAmount {
oldDestinationAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(oldDestinationAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)+(%d)", oldTransaction.RelatedAccountAmount, oldDestinationAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", oldDestinationAccount.Uid, false).Update(oldDestinationAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
if newDestinationAccountNewAmount != 0 {
destinationAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(destinationAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", newDestinationAccountNewAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", destinationAccount.Uid, false).Update(destinationAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
return errs.ErrTransactionTypeInvalid
}
return nil
})
if err != nil {
return err
}
return nil
}
// DeleteTransaction deletes an existed transaction from database
func (s *TransactionService) DeleteTransaction(uid int64, transactionId int64) error {
if uid <= 0 {
return errs.ErrUserIdInvalid
}
now := time.Now().Unix()
updateModel := &models.Transaction{
Deleted: true,
DeletedUnixTime: now,
}
return s.UserDataDB(uid).DoTransaction(func(sess *xorm.Session) error {
// Get and verify current transaction
oldTransaction := &models.Transaction{}
has, err := sess.ID(transactionId).Where("uid=? AND deleted=?", uid, false).Get(oldTransaction)
if err != nil {
return err
} else if !has {
return errs.ErrTransactionNotFound
}
// Get and verify source and destination account
sourceAccount, destinationAccount, err := s.getAccountModels(sess, oldTransaction)
if err != nil {
return err
}
if sourceAccount.Hidden || (destinationAccount != nil && destinationAccount.Hidden) {
return errs.ErrCannotDeleteTransactionInHiddenAccount
}
// Update transaction row to deleted
deletedRows, err := sess.ID(oldTransaction.TransactionId).Cols("deleted", "deleted_unix_time").Where("uid=? AND deleted=?", uid, false).Update(updateModel)
if err != nil {
return err
} else if deletedRows < 1 {
return errs.ErrTransactionNotFound
}
if oldTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || oldTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
deletedRows, err = sess.ID(oldTransaction.RelatedId).Cols("deleted", "deleted_unix_time").Where("uid=? AND deleted=?", uid, false).Update(updateModel)
if err != nil {
return err
} else if deletedRows < 1 {
return errs.ErrTransactionNotFound
}
}
// Update account table
if oldTransaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", oldTransaction.RelatedAccountAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_INCOME {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", oldTransaction.Amount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_EXPENSE {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", oldTransaction.Amount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
sourceAccount.UpdatedUnixTime = time.Now().Unix()
updatedSourceRows, err := sess.ID(sourceAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance+(%d)", oldTransaction.Amount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", sourceAccount.Uid, false).Update(sourceAccount)
if err != nil {
return err
} else if updatedSourceRows < 1 {
return errs.ErrDatabaseOperationFailed
}
destinationAccount.UpdatedUnixTime = time.Now().Unix()
updatedDestinationRows, err := sess.ID(destinationAccount.AccountId).SetExpr("balance", fmt.Sprintf("balance-(%d)", oldTransaction.RelatedAccountAmount)).Cols("updated_unix_time").Where("uid=? AND deleted=?", destinationAccount.Uid, false).Update(destinationAccount)
if err != nil {
return err
} else if updatedDestinationRows < 1 {
return errs.ErrDatabaseOperationFailed
}
} else if oldTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
return errs.ErrTransactionTypeInvalid
}
return err
})
}
// GetRelatedTransferTransaction returns the related transaction for transfer transaction
func (s *TransactionService) GetRelatedTransferTransaction(originalTransaction *models.Transaction, relatedTransactionId int64) *models.Transaction {
var relatedType models.TransactionDbType
var relatedTransactionTime int64
if originalTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
relatedType = models.TRANSACTION_DB_TYPE_TRANSFER_IN
relatedTransactionTime = originalTransaction.TransactionTime + 1
} else if originalTransaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
relatedType = models.TRANSACTION_DB_TYPE_TRANSFER_OUT
relatedTransactionTime = originalTransaction.TransactionTime - 1
} else {
return nil
}
relatedTransaction := &models.Transaction{
TransactionId: relatedTransactionId,
Uid: originalTransaction.Uid,
Deleted: originalTransaction.Deleted,
Type: relatedType,
CategoryId: originalTransaction.CategoryId,
TransactionTime: relatedTransactionTime,
AccountId: originalTransaction.RelatedAccountId,
Amount: originalTransaction.RelatedAccountAmount,
RelatedId: originalTransaction.TransactionId,
RelatedAccountId: originalTransaction.AccountId,
RelatedAccountAmount: originalTransaction.Amount,
Comment: originalTransaction.Comment,
CreatedUnixTime: originalTransaction.CreatedUnixTime,
UpdatedUnixTime: originalTransaction.UpdatedUnixTime,
DeletedUnixTime: originalTransaction.DeletedUnixTime,
}
return relatedTransaction
}
func (s *TransactionService) isAccountIdValid(transaction *models.Transaction) error {
if transaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
if transaction.RelatedAccountId != 0 && transaction.RelatedAccountId != transaction.AccountId {
return errs.ErrTransactionDestinationAccountCannotBeSet
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_INCOME ||
transaction.Type == models.TRANSACTION_DB_TYPE_EXPENSE {
if transaction.RelatedAccountId != 0 {
return errs.ErrTransactionDestinationAccountCannotBeSet
} else if transaction.RelatedAccountAmount != 0 {
return errs.ErrTransactionDestinationAmountCannotBeSet
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
if transaction.AccountId == transaction.RelatedAccountId {
return errs.ErrTransactionSourceAndDestinationIdCannotBeEqual
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
return errs.ErrTransactionTypeInvalid
} else {
return errs.ErrTransactionTypeInvalid
}
return nil
}
func (s *TransactionService) getAccountModels(sess *xorm.Session, transaction *models.Transaction) (sourceAccount *models.Account, destinationAccount *models.Account, err error) {
sourceAccount = &models.Account{}
destinationAccount = &models.Account{}
has, err := sess.ID(transaction.AccountId).Where("uid=? AND deleted=?", transaction.Uid, false).Get(sourceAccount)
if err != nil {
return nil, nil, err
} else if !has {
return nil, nil, errs.ErrSourceAccountNotFound
}
if transaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
if transaction.RelatedAccountId != 0 && transaction.RelatedAccountId != transaction.AccountId {
return nil, nil, errs.ErrAccountIdInvalid
} else {
destinationAccount = sourceAccount
}
} else if transaction.Type == models.TRANSACTION_DB_TYPE_INCOME || transaction.Type == models.TRANSACTION_DB_TYPE_EXPENSE {
if transaction.RelatedAccountId != 0 {
return nil, nil, errs.ErrAccountIdInvalid
}
destinationAccount = nil
} else if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
if transaction.RelatedAccountId <= 0 {
return nil, nil, errs.ErrAccountIdInvalid
} else {
has, err = sess.ID(transaction.RelatedAccountId).Where("uid=? AND deleted=?", transaction.Uid, false).Get(destinationAccount)
if err != nil {
return nil, nil, err
} else if !has {
return nil, nil, errs.ErrDestinationAccountNotFound
}
}
}
return sourceAccount, destinationAccount, nil
}
func (s *TransactionService) getOldAccountModels(sess *xorm.Session, transaction *models.Transaction, oldTransaction *models.Transaction, sourceAccount *models.Account, destinationAccount *models.Account) (oldSourceAccount *models.Account, oldDestinationAccount *models.Account, err error) {
oldSourceAccount = &models.Account{}
oldDestinationAccount = &models.Account{}
if transaction.AccountId == oldTransaction.AccountId {
oldSourceAccount = sourceAccount
} else {
has, err := sess.ID(oldTransaction.AccountId).Where("uid=? AND deleted=?", transaction.Uid, false).Get(oldSourceAccount)
if err != nil {
return nil, nil, err
} else if !has {
return nil, nil, errs.ErrSourceAccountNotFound
}
}
if transaction.RelatedAccountId == oldTransaction.RelatedAccountId {
oldDestinationAccount = destinationAccount
} else {
has, err := sess.ID(oldTransaction.RelatedAccountId).Where("uid=? AND deleted=?", transaction.Uid, false).Get(oldDestinationAccount)
if err != nil {
return nil, nil, err
} else if !has {
return nil, nil, errs.ErrDestinationAccountNotFound
}
}
return oldSourceAccount, oldDestinationAccount, nil
}
func (s *TransactionService) isCategoryValid(sess *xorm.Session, transaction *models.Transaction) error {
if transaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
if transaction.CategoryId != 0 {
return errs.ErrBalanceModificationTransactionCannotSetCategory
}
} else {
category := &models.TransactionCategory{}
has, err := sess.ID(transaction.CategoryId).Where("uid=? AND deleted=?", transaction.Uid, false).Get(category)
if err != nil {
return err
} else if !has {
return errs.ErrTransactionCategoryNotFound
}
if category.ParentCategoryId < 1 {
return errs.ErrCannotUsePrimaryCategoryForTransaction
}
if (transaction.Type == models.TRANSACTION_DB_TYPE_INCOME && category.Type != models.CATEGORY_TYPE_INCOME) ||
(transaction.Type == models.TRANSACTION_DB_TYPE_EXPENSE && category.Type != models.CATEGORY_TYPE_EXPENSE) ||
((transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT || transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN) && category.Type != models.CATEGORY_TYPE_TRANSFER) {
return errs.ErrTransactionCategoryTypeInvalid
}
}
return nil
}
func (s *TransactionService) isTagsValid(sess *xorm.Session, transaction *models.Transaction, transactionTagIndexs []*models.TransactionTagIndex, tagIds []int64) error {
if len(transactionTagIndexs) > 0 {
var tags []*models.TransactionTag
err := sess.Where("uid=?", transaction.Uid).In("tag_id", tagIds).Find(&tags)
if err != nil {
return err
}
tagMap := make(map[int64]*models.TransactionTag)
for i := 0; i < len(tags); i++ {
tagMap[tags[i].TagId] = tags[i]
}
for i := 0; i < len(transactionTagIndexs); i++ {
if _, exists := tagMap[transactionTagIndexs[i].TagId]; !exists {
return errs.ErrTransactionTagNotFound
}
}
}
return nil
}