flipped-aurora/gin-vue-admin · error

创建自动代码导出模板 %s 失败: %w

Error message

创建自动代码导出模板 %s 失败: %w

What it means

Thrown by persistAutoCodeExportTemplate when tx.Create(&entity) fails to insert the SysExportTemplate row generated alongside auto-created code. The error is wrapped with the template name (Package_StructName).

Source

Thrown at server/service/system/auto_code_persistence.go:143

	for _, field := range info.Fields {
		if field != nil && field.Excel {
			fields[field.ColumnName] = field.FieldDesc
		}
	}
	templateInfo, err := json.Marshal(fields)
	if err != nil {
		return fmt.Errorf("序列化自动代码导出模板失败: %w", err)
	}
	name := info.Package + "_" + info.StructName
	entity := model.SysExportTemplate{
		DBName:       info.BusinessDB,
		Name:         name,
		TableName:    info.TableName,
		TemplateID:   name,
		TemplateInfo: string(templateInfo),
	}
	if err = tx.Create(&entity).Error; err != nil {
		return fmt.Errorf("创建自动代码导出模板 %s 失败: %w", name, err)
	}
	history.ExportTemplateID = entity.ID
	return nil
}

func autoCodeIdentityExists(ctx context.Context, db *gorm.DB, info request.AutoCode) (bool, error) {
	if db == nil {
		return false, errors.New("自动代码数据库未初始化")
	}
	var count int64
	err := db.WithContext(ctx).Model(&model.SysAutoCodeHistory{}).
		Where(
			"business_db = ? AND (struct_name = ? OR abbreviation = ?) AND package = ? AND flag = ?",
			info.BusinessDB,
			info.StructName,
			info.Abbreviation,
			info.Package,
			0,

View on GitHub (pinned to 3136500ef3)

Solutions

1. Check the wrapped %w cause; on duplicate key, remove the stale sys_export_template row with TemplateID = Package_StructName or enable the auto-remove flow.
2. Run migrations so sys_export_template matches the current model.
3. Retry the generation; the transaction guarantees no partial template row persists.

var cnt int64
db.Model(&system.SysExportTemplate{}).
    Where("template_id = ?", pkg+"_"+structName).Count(&cnt)
if cnt > 0 { /* remove stale template first */ }

if err := createAutoCode(req); err != nil {
    if strings.Contains(err.Error(), "Duplicate entry") {
        db.Where("template_id = ?", name).Delete(&system.SysExportTemplate{})
        err = createAutoCode(req)
    }
}

When it happens

Trigger: INSERT into sys_export_template fails during auto-code Create: duplicate TemplateID/name (Package_StructName already exists from a previous generation), schema drift on sys_export_template, or DB connection failure.

Common situations: Regenerating code for the same package/struct after an earlier run left an export template behind; manual deletion of the menu but not its export template causing unique-key conflicts; missing migration of sys_export_template on a fresh environment.

Related errors

• 创建自动代码菜单 %s 失败: %w
• 查询自动代码菜单 %s 失败: %w
• 查询自动代码重复记录失败: %w
• 同步失败!
• 查询包失败!

AI-assisted analysis of flipped-aurora/gin-vue-admin@3136500ef3 (2026-08-31). Data as JSON: /api/errors/0e50e4155be05544. Report an issue: GitHub.