157 lines
3.4 KiB
Markdown
157 lines
3.4 KiB
Markdown
# 12.4 数据删除规范
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## 软删除约定
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:::tip 核心原则
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所有业务数据统一使用软删除机制，通过 `is_delete` 字段标记记录状态，不物理删除数据。
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:::
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| is_delete 值 | 含义 |
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|--------------|------|
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| `0` | 正常记录（默认值） |
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| `1` | 已删除记录 |
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所有查询方法自动过滤 `is_delete = 0`，业务层无需关心已删除数据。
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## 单条删除
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### URL 格式
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```text
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DELETE /api/{module}/delete/{id}
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```
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### Controller 示例
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```php
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#[Log('案例演示-删除记录', Log::TYPE_DELETE, '删除案例演示ID:{id}')]
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#[Permission('sys:example:delete', '删除案例演示')]
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public function delete(int $id): Json
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{
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return parent::_remove($this->logic, $id);
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}
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```
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### 内部流程
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```text
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Controller::delete($id)
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│
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▼
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BaseController::_remove($logic, $id)
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│
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▼
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BaseLogic::delete($id)
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│
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├─ beforeDelete($id) 钩子（抛异常可拦截）
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│
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├─ $model->find($id)
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│ └─ 不存在 → return false
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│
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├─ $model->save(['is_delete' => 1])
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│
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└─ afterDelete($id) 钩子
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```
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## 批量删除
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### 请求格式
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```text
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DELETE /api/{module}/batchDelete
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Content-Type: application/json
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{ "ids": [1, 2, 3] }
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```
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### Controller 示例
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```php
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#[Log('案例演示-批量删除', Log::TYPE_DELETE)]
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#[Permission('sys:example:delete', '删除案例演示')]
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public function batchDelete(): Json
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{
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$ids = $this->getJsonBody()['ids'] ?? [];
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return parent::_batchRemove($this->logic, $ids);
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}
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```
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### 内部流程
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```text
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Controller::batchDelete()
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│
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▼
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BaseController::_batchRemove($logic, $ids)
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│
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├─ ids 为空 → 返回失败 "请选择要删除的数据"
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│
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▼
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BaseLogic::batchDelete($ids)
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│
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├─ beforeBatchDelete($ids) 钩子（整体校验）
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│
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├─ 逐条 beforeDelete($id) 校验
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│
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├─ Model::batchSoftDelete($ids)
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│ └─ UPDATE SET is_delete = 1 WHERE id IN (...)
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│
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└─ afterBatchDelete($ids) 钩子
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```
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## 删除前校验（beforeDelete 钩子）
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在 Logic 中重写 `beforeDelete` 方法，抛异常可拦截删除：
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```php
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class UserLogic extends BaseTenantLogic
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{
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protected function beforeDelete(int $id): void
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{
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// 检查是否有子级
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$children = Dept::where('parent_id', $id)->where('is_delete', 0)->count();
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if ($children > 0) {
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throw new \Exception('存在子部门，不可删除');
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}
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// 检查是否被引用
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$userCount = User::where('dept_id', $id)->where('is_delete', 0)->count();
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if ($userCount > 0) {
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throw new \Exception('该部门下有用户，不可删除');
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}
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}
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}
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```
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## 何时可物理删除
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| 场景 | 方式 | 说明 |
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|------|------|------|
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| 日志数据清理 | 定时任务 | CleanLogTask 清理 N 天前的日志 |
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| 临时数据 | 定时任务 | 清理过期的临时文件 |
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| 其它 | 审批 | 需经过管理员审批 |
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## 前端删除规范
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### 单条删除
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```vue
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<n-popconfirm @positive-click="handleDelete(row.id)">
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<template #trigger>
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<n-button type="error" size="small">删除</n-button>
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</template>
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确认删除该记录？
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</n-popconfirm>
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```
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### 批量删除
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```vue
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<n-button
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type="error"
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:disabled="!selectedIds.length"
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@click="handleBatchDelete"
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>
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批量删除 ({{ selectedIds.length }})
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</n-button>
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``` |