codegen: implement "without rowid" tables

cmd/subcmd_generate_models.go

@@ -46,7 +46,6 @@ var generate_model = &cobra.Command{
 					Specs: []ast.Spec{
 						&ast.ImportSpec{Path: &ast.BasicLit{Kind: token.STRING, Value: `"database/sql"`}},
 						&ast.ImportSpec{Path: &ast.BasicLit{Kind: token.STRING, Value: `"errors"`}},
-						&ast.ImportSpec{Path: &ast.BasicLit{Kind: token.STRING, Value: `"fmt"`}},
 						&ast.ImportSpec{
 							Name: ast.NewIdent("."),
 							Path: &ast.BasicLit{Kind: token.STRING, Value: `"git.offline-twitter.com/offline-labs/gas-stack/pkg/db"`},
@@ -69,8 +68,16 @@ var generate_model = &cobra.Command{
 				modelgenerate.GenerateSQLFieldsConst(table),
 				modelgenerate.GenerateSaveItemFunc(table),
 				modelgenerate.GenerateDeleteItemFunc(table),
-				modelgenerate.GenerateGetItemByIDFunc(table),
 			)
+			if table.IsWithoutRowid {
+				decls = append(decls,
+					modelgenerate.GenerateGetItemBy(table, table.PrimaryKeyColumns()),
+				)
+			} else {
+				decls = append(decls,
+					modelgenerate.GenerateGetItemByIDFunc(table),
+				)
+			}
 			for _, index := range schema.Indexes {
 				if index.TableName != table.TableName {
 					// Skip indexes on other tables