code refactor

pkg/api/data_managements.go

@@ -20,8 +20,6 @@ const pageCountForDataExport = 1000
 // DataManagementsApi represents data management api
 type DataManagementsApi struct {
 	ApiUsingConfig
-	ezBookKeepingCsvConverter converters.TransactionDataConverter
-	ezBookKeepingTsvConverter converters.TransactionDataConverter
 	tokens       *services.TokenService
 	users        *services.UserService
 	accounts     *services.AccountService
@@ -38,8 +36,6 @@ var (
 		ApiUsingConfig: ApiUsingConfig{
 			container: settings.Container,
 		},
-		ezBookKeepingCsvConverter: converters.EzBookKeepingTransactionDataCSVFileConverter,
-		ezBookKeepingTsvConverter: converters.EzBookKeepingTransactionDataTSVFileConverter,
 		tokens:       services.Tokens,
 		users:        services.Users,
 		accounts:     services.Accounts,
@@ -247,12 +243,10 @@ func (a *DataManagementsApi) getExportedFileContent(c *core.WebContext, fileType
 		return nil, "", errs.ErrOperationFailed
 	}
 
-	var dataExporter converters.TransactionDataExporter
+	dataExporter := converters.GetTransactionDataExporter(fileType)
 
-	if fileType == "tsv" {
+	if dataExporter == nil {
-		dataExporter = a.ezBookKeepingTsvConverter
+		return nil, "", errs.ErrNotImplemented
-	} else {
-		dataExporter = a.ezBookKeepingCsvConverter
 	}
 
 	result, err := dataExporter.ToExportedContent(c, uid, allTransactions, accountMap, categoryMap, tagMap, tagIndexes)

pkg/api/transactions.go

@@ -25,8 +25,6 @@ const maximumPicturesCountOfTransaction = 10
 type TransactionsApi struct {
 	ApiUsingConfig
 	ApiUsingDuplicateChecker
-	ezBookKeepingCsvConverter converters.TransactionDataConverter
-	ezBookKeepingTsvConverter converters.TransactionDataConverter
 	transactions          *services.TransactionService
 	transactionCategories *services.TransactionCategoryService
 	transactionTags       *services.TransactionTagService
@@ -44,8 +42,6 @@ var (
 		ApiUsingDuplicateChecker: ApiUsingDuplicateChecker{
 			container: duplicatechecker.Container,
 		},
-		ezBookKeepingCsvConverter: converters.EzBookKeepingTransactionDataCSVFileConverter,
-		ezBookKeepingTsvConverter: converters.EzBookKeepingTransactionDataTSVFileConverter,
 		transactions:          services.Transactions,
 		transactionCategories: services.TransactionCategories,
 		transactionTags:       services.TransactionTags,
@@ -1034,14 +1030,10 @@ func (a *TransactionsApi) TransactionParseImportFileHandler(c *core.WebContext)
 	}
 
 	fileType := fileTypes[0]
-	var dataImporter converters.TransactionDataImporter
+	dataImporter, err := converters.GetTransactionDataImporter(fileType)
 
-	if fileType == "ezbookkeeping_csv" {
+	if err != nil {
-		dataImporter = a.ezBookKeepingCsvConverter
+		return nil, errs.Or(err, errs.ErrImportFileTypeNotSupported)
-	} else if fileType == "ezbookkeeping_tsv" {
-		dataImporter = a.ezBookKeepingTsvConverter
-	} else {
-		return nil, errs.ErrImportFileTypeNotSupported
 	}
 
 	importFiles := form.File["file"]

pkg/cli/user_data.go

@@ -21,8 +21,6 @@ const pageCountForDataExport = 1000
 // UserDataCli represents user data cli
 type UserDataCli struct {
 	CliUsingConfig
-	ezBookKeepingCsvConverter converters.TransactionDataConverter
-	ezBookKeepingTsvConverter converters.TransactionDataConverter
 	accounts                *services.AccountService
 	transactions            *services.TransactionService
 	categories              *services.TransactionCategoryService
@@ -39,8 +37,6 @@ var (
 		CliUsingConfig: CliUsingConfig{
 			container: settings.Container,
 		},
-		ezBookKeepingCsvConverter: converters.EzBookKeepingTransactionDataCSVFileConverter,
-		ezBookKeepingTsvConverter: converters.EzBookKeepingTransactionDataTSVFileConverter,
 		accounts:                services.Accounts,
 		transactions:            services.Transactions,
 		categories:              services.TransactionCategories,
@@ -646,12 +642,10 @@ func (l *UserDataCli) ExportTransaction(c *core.CliContext, username string, fil
 		return nil, err
 	}
 
-	var dataExporter converters.TransactionDataExporter
+	dataExporter := converters.GetTransactionDataExporter(fileType)
 
-	if fileType == "tsv" {
+	if dataExporter == nil {
-		dataExporter = l.ezBookKeepingTsvConverter
+		return nil, errs.ErrNotImplemented
-	} else {
-		dataExporter = l.ezBookKeepingCsvConverter
 	}
 
 	result, err := dataExporter.ToExportedContent(c, uid, allTransactions, accountMap, categoryMap, tagMap, tagIndexesMap)
@@ -670,14 +664,10 @@ func (l *UserDataCli) ImportTransaction(c *core.CliContext, username string, fil
 		return errs.ErrUsernameIsEmpty
 	}
 
-	var dataImporter converters.TransactionDataImporter
+	dataImporter, err := converters.GetTransactionDataImporter(fileType)
 
-	if fileType == "ezbookkeeping_csv" {
+	if err != nil {
-		dataImporter = l.ezBookKeepingCsvConverter
+		return err
-	} else if fileType == "ezbookkeeping_tsv" {
-		dataImporter = l.ezBookKeepingTsvConverter
-	} else {
-		return errs.ErrImportFileTypeNotSupported
 	}
 
 	user, err := l.GetUserByUsername(c, username)

pkg/converters/transaction_data_converters.go

@@ -0,0 +1,25 @@
+package converters
+
+import "github.com/mayswind/ezbookkeeping/pkg/errs"
+
+// GetTransactionDataExporter returns the transaction data exporter according to the file type
+func GetTransactionDataExporter(fileType string) TransactionDataExporter {
+	if fileType == "csv" {
+		return EzBookKeepingTransactionDataCSVFileConverter
+	} else if fileType == "tsv" {
+		return EzBookKeepingTransactionDataTSVFileConverter
+	} else {
+		return nil
+	}
+}
+
+// GetTransactionDataImporter returns the transaction data importer according to the file type
+func GetTransactionDataImporter(fileType string) (TransactionDataImporter, error) {
+	if fileType == "ezbookkeeping_csv" {
+		return EzBookKeepingTransactionDataCSVFileConverter, nil
+	} else if fileType == "ezbookkeeping_tsv" {
+		return EzBookKeepingTransactionDataTSVFileConverter, nil
+	} else {
+		return nil, errs.ErrImportFileTypeNotSupported
+	}
+}