model generator: add the 'const xyzSQLFields = ...' decl, use it in the select query for GetXyzByID

cmd/subcmd_generate_models.go

@@ -62,8 +62,9 @@ var generate_model = &cobra.Command{
 					modelgenerate.GenerateIDType(table),
 					modelgenerate.GenerateModelAST(table),
 					modelgenerate.GenerateSaveItemFunc(table),
-					modelgenerate.GenerateGetItemByIDFunc(table),
 					modelgenerate.GenerateDeleteItemFunc(table),
+					modelgenerate.GenerateSQLFieldsConst(table),
+					modelgenerate.GenerateGetItemByIDFunc(table),
 				},
 			}