fix

models/unittest/fixtures_loader.go

@@ -35,16 +35,16 @@ func (f *fixturesLoader) prepareFieldValue(v any) any {
 	return v
 }
 
-func (f *fixturesLoader) mssqlTableHasIdentityColumn(db *sql.DB, tableName string) (bool, error) {
-	row := db.QueryRow(`SELECT COUNT(*) FROM sys.identity_columns WHERE OBJECT_ID = OBJECT_ID(?)`, tableName)
+func (f *fixturesLoader) mssqlTableHasIdentityColumn(q *sql.Tx, tableName string) (bool, error) {
+	row := q.QueryRow(`SELECT COUNT(*) FROM sys.identity_columns WHERE OBJECT_ID = OBJECT_ID(?)`, tableName)
 	var count int
 	if err := row.Scan(&count); err != nil {
 		return false, err
 	}
 	return count > 0, nil
 }
 
-func (f *fixturesLoader) loadFixtures(file string) error {
+func (f *fixturesLoader) loadFixtures(tx *sql.Tx, file string) error {
 	data, err := os.ReadFile(file)
 	if err != nil {
 		return fmt.Errorf("failed to read file %q: %w", file, err)
@@ -57,25 +57,14 @@ func (f *fixturesLoader) loadFixtures(file string) error {
 
 	tableName, _, _ := strings.Cut(filepath.Base(file), ".")
 	tableNameQuoted := f.quoteObject(tableName)
-	_, err = f.engine.Table(tableName).Where("1=1").Delete() // sqlite3 doesn't support truncate
+	_, err = tx.Exec(fmt.Sprintf("DELETE FROM %s", tableNameQuoted)) // sqlite3 doesn't support truncate
 	if err != nil {
 		return err
 	}
 
-	goDB := f.engine.DB().DB
-	tx, err := goDB.Begin()
-	if err != nil {
-		return err
-	}
-	defer func() {
-		if tx != nil {
-			_ = tx.Rollback()
-		}
-	}()
-
 	switch f.engine.Dialect().URI().DBType {
 	case schemas.MSSQL:
-		hasIdentityColumn, err := f.mssqlTableHasIdentityColumn(goDB, tableName)
+		hasIdentityColumn, err := f.mssqlTableHasIdentityColumn(tx, tableName)
 		if err != nil {
 			return err
 		}
@@ -84,6 +73,7 @@ func (f *fixturesLoader) loadFixtures(file string) error {
 			if err != nil {
 				return err
 			}
+			defer func() { _, err = tx.Exec(fmt.Sprintf("SET IDENTITY_INSERT %s OFF", tableNameQuoted)) }()
 		}
 	}
 
@@ -112,16 +102,20 @@ func (f *fixturesLoader) loadFixtures(file string) error {
 		sqlBuf = sqlBuf[:0]
 		sqlArguments = sqlArguments[:0]
 	}
-	err = tx.Commit()
-	tx = nil
-	return err
+	return nil
 }
 
 func (f *fixturesLoader) Load() error {
+	goDB := f.engine.DB().DB
+
 	switch f.engine.Dialect().URI().DBType {
 	case schemas.SQLITE:
 		f.quoteObject = func(s string) string { return fmt.Sprintf(`"%s"`, s) }
 		f.paramPlaceholder = func(idx int) string { return "?" }
+		if _, err := goDB.Exec("PRAGMA defer_foreign_keys = ON"); err != nil {
+			return err
+		}
+		defer func() { _, _ = goDB.Exec("PRAGMA defer_foreign_keys = OFF") }()
 	case schemas.POSTGRES:
 		f.quoteObject = func(s string) string { return fmt.Sprintf(`"%s"`, s) }
 		f.paramPlaceholder = func(idx int) string { return fmt.Sprintf(`$%d`, idx) }
@@ -141,13 +135,20 @@ func (f *fixturesLoader) Load() error {
 			f.opts.Files = append(f.opts.Files, e.Name())
 		}
 	}
+
+	tx, err := goDB.Begin()
+	if err != nil {
+		return err
+	}
+	defer func() { _ = tx.Rollback() }()
+
 	for _, file := range f.opts.Files {
 		if !filepath.IsAbs(file) {
 			file = filepath.Join(f.opts.Dir, file)
 		}
-		if err := f.loadFixtures(file); err != nil {
+		if err := f.loadFixtures(tx, file); err != nil {
 			return fmt.Errorf("failed to load fixtures from %s: %w", file, err)
 		}
 	}
-	return nil
+	return tx.Commit()
 }