not allow to add transaction before balance modification transaction and not allow to modify transaction time for balance modification transaction

pkg/errs/transaction.go

@@ -32,4 +32,6 @@ var (
 	ErrImportFileTypeIsEmpty                                    = NewSystemError(NormalSubcategoryTransaction, 25, http.StatusBadRequest, "import file type is empty")
 	ErrImportFileTypeNotSupported                               = NewSystemError(NormalSubcategoryTransaction, 26, http.StatusBadRequest, "import file type not supported")
 	ErrNoDataToImport                                           = NewSystemError(NormalSubcategoryTransaction, 27, http.StatusBadRequest, "no data to import")
+	ErrCannotAddTransactionBeforeBalanceModificationTransaction = NewSystemError(NormalSubcategoryTransaction, 28, http.StatusBadRequest, "cannot add transaction before balance modification transaction")
+	ErrBalanceModificationTransactionCannotModifyTime           = NewSystemError(NormalSubcategoryTransaction, 29, http.StatusBadRequest, "balance modification transaction cannot modify transaction time")
 )

pkg/models/transaction.go

@@ -69,12 +69,12 @@ func (s TransactionDbType) ToTransactionType() (TransactionType, error) {
 // Transaction represents transaction data stored in database
 type Transaction struct {
 	TransactionId        int64             `xorm:"PK"`
-	Uid                  int64             `xorm:"UNIQUE(UQE_transaction_uid_time) INDEX(IDX_transaction_uid_deleted_time) INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_category_id_time) INDEX(IDX_transaction_uid_deleted_account_id_time) INDEX(IDX_transaction_uid_deleted_time_longitude_latitude) NOT NULL"`
-	Deleted              bool              `xorm:"INDEX(IDX_transaction_uid_deleted_time) INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_category_id_time) INDEX(IDX_transaction_uid_deleted_account_id_time) INDEX(IDX_transaction_uid_deleted_time_longitude_latitude) NOT NULL"`
-	Type                 TransactionDbType `xorm:"INDEX(IDX_transaction_uid_deleted_type_time) NOT NULL"`
+	Uid                  int64             `xorm:"UNIQUE(UQE_transaction_uid_time) INDEX(IDX_transaction_uid_deleted_time) INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_type_account_id_time) INDEX(IDX_transaction_uid_deleted_category_id_time) INDEX(IDX_transaction_uid_deleted_account_id_time) INDEX(IDX_transaction_uid_deleted_time_longitude_latitude) NOT NULL"`
+	Deleted              bool              `xorm:"INDEX(IDX_transaction_uid_deleted_time) INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_type_account_id_time) INDEX(IDX_transaction_uid_deleted_category_id_time) INDEX(IDX_transaction_uid_deleted_account_id_time) INDEX(IDX_transaction_uid_deleted_time_longitude_latitude) NOT NULL"`
+	Type                 TransactionDbType `xorm:"INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_type_account_id_time) NOT NULL"`
 	CategoryId           int64             `xorm:"INDEX(IDX_transaction_uid_deleted_category_id_time) NOT NULL"`
-	AccountId            int64             `xorm:"INDEX(IDX_transaction_uid_deleted_account_id_time) NOT NULL"`
-	TransactionTime      int64             `xorm:"UNIQUE(UQE_transaction_uid_time) INDEX(IDX_transaction_uid_deleted_time) INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_category_id_time) INDEX(IDX_transaction_uid_deleted_account_id_time) NOT NULL"`
+	AccountId            int64             `xorm:"INDEX(IDX_transaction_uid_deleted_account_id_time) INDEX(IDX_transaction_uid_deleted_type_account_id_time) NOT NULL"`
+	TransactionTime      int64             `xorm:"UNIQUE(UQE_transaction_uid_time) INDEX(IDX_transaction_uid_deleted_time) INDEX(IDX_transaction_uid_deleted_type_time) INDEX(IDX_transaction_uid_deleted_type_account_id_time) INDEX(IDX_transaction_uid_deleted_category_id_time) INDEX(IDX_transaction_uid_deleted_account_id_time) NOT NULL"`
 	TimezoneUtcOffset    int16             `xorm:"NOT NULL"`
 	Amount               int64             `xorm:"NOT NULL"`
 	RelatedId            int64             `xorm:"NOT NULL"`

pkg/services/transactions.go

@@ -624,6 +624,10 @@ func (s *TransactionService) ModifyTransaction(c core.Context, transaction *mode
 		modifyTransactionTime := false
 
 		if utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime) != utils.GetUnixTimeFromTransactionTime(oldTransaction.TransactionTime) {
+			if oldTransaction.Type == models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
+				return errs.ErrBalanceModificationTransactionCannotModifyTime
+			}
+
 			sameSecondLatestTransaction := &models.Transaction{}
 			minTransactionTime := utils.GetMinTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
 			maxTransactionTime := utils.GetMaxTransactionTimeFromUnixTime(utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime))
@@ -702,6 +706,23 @@ func (s *TransactionService) ModifyTransaction(c core.Context, transaction *mode
 			return err
 		}
 
+		// Not allow to add transaction before balance modification transaction
+		if transaction.Type != models.TRANSACTION_DB_TYPE_MODIFY_BALANCE {
+			otherTransactionExists := false
+
+			if destinationAccount != nil && sourceAccount.AccountId != destinationAccount.AccountId {
+				otherTransactionExists, err = sess.Cols("uid", "deleted", "account_id").Where("uid=? AND deleted=? AND type=? AND (account_id=? OR account_id=?) AND transaction_time>=?", transaction.Uid, false, models.TRANSACTION_DB_TYPE_MODIFY_BALANCE, sourceAccount.AccountId, destinationAccount.AccountId, transaction.TransactionTime).Limit(1).Exist(&models.Transaction{})
+			} else {
+				otherTransactionExists, err = sess.Cols("uid", "deleted", "account_id").Where("uid=? AND deleted=? AND type=? AND account_id=? AND transaction_time>=?", transaction.Uid, false, models.TRANSACTION_DB_TYPE_MODIFY_BALANCE, sourceAccount.AccountId, transaction.TransactionTime).Limit(1).Exist(&models.Transaction{})
+			}
+
+			if err != nil {
+				return err
+			} else if otherTransactionExists {
+				return errs.ErrCannotAddTransactionBeforeBalanceModificationTransaction
+			}
+		}
+
 		// Update transaction row
 		updatedRows, err := sess.ID(transaction.TransactionId).Cols(updateCols...).Where("uid=? AND deleted=?", transaction.Uid, false).Update(transaction)
 
@@ -1579,6 +1600,20 @@ func (s *TransactionService) doCreateTransaction(sess *xorm.Session, transaction
 
 		transaction.RelatedAccountId = transaction.AccountId
 		transaction.RelatedAccountAmount = transaction.Amount - sourceAccount.Balance
+	} else { // Not allow to add transaction before balance modification transaction
+		otherTransactionExists := false
+
+		if destinationAccount != nil && sourceAccount.AccountId != destinationAccount.AccountId {
+			otherTransactionExists, err = sess.Cols("uid", "deleted", "account_id").Where("uid=? AND deleted=? AND type=? AND (account_id=? OR account_id=?) AND transaction_time>=?", transaction.Uid, false, models.TRANSACTION_DB_TYPE_MODIFY_BALANCE, sourceAccount.AccountId, destinationAccount.AccountId, transaction.TransactionTime).Limit(1).Exist(&models.Transaction{})
+		} else {
+			otherTransactionExists, err = sess.Cols("uid", "deleted", "account_id").Where("uid=? AND deleted=? AND type=? AND account_id=? AND transaction_time>=?", transaction.Uid, false, models.TRANSACTION_DB_TYPE_MODIFY_BALANCE, sourceAccount.AccountId, transaction.TransactionTime).Limit(1).Exist(&models.Transaction{})
+		}
+
+		if err != nil {
+			return err
+		} else if otherTransactionExists {
+			return errs.ErrCannotAddTransactionBeforeBalanceModificationTransaction
+		}
 	}
 
 	// Insert transaction row

src/locales/en.json

@@ -1079,6 +1079,8 @@
         "import file type is empty": "Import file type is empty",
         "import file type not supported": "Import file type is not supported",
         "no data to import": "No data to import",
+        "cannot add transaction before balance modification transaction": "You cannot add transaction before the balance modification transaction",
+        "balance modification transaction cannot modify transaction time": "You cannot modify transaction time for balance modification transaction",
         "transaction category id is invalid": "Transaction category ID is invalid",
         "transaction category not found": "Transaction category is not found",
         "transaction category type is invalid": "Transaction category type is invalid",

src/locales/zh_Hans.json

@@ -1079,6 +1079,8 @@
         "import file type is empty": "导入文件类型为空",
         "import file type not supported": "导入文件类型不支持",
         "no data to import": "没有可以导入的数据",
+        "cannot add transaction before balance modification transaction": "不能添加早于修改余额的交易",
+        "balance modification transaction cannot modify transaction time": "您无法对修改余额的交易修改交易时间",
         "transaction category id is invalid": "交易分类ID无效",
         "transaction category not found": "交易分类不存在",
         "transaction category type is invalid": "交易分类类型无效",