初始化项目

app/admin/controller/Category.php

@@ -0,0 +1,190 @@
+<?php
+
+declare(strict_types=1);
+
+namespace app\admin\controller;
+
+use app\model\Category as ModelCategory;
+use think\facade\View;
+use think\Request;
+
+class Category extends Common
+{
+  /**
+   * 显示资源列表
+   *
+   * @return \think\Response
+   */
+  public function index()
+  {
+    //
+
+    $list = ModelCategory::getListLevel('',$this->request->param('type',1));
+
+    if($this->request->isAjax()){
+      return json_message($list);
+    }
+
+    View::assign('list',$list);
+
+    return View::fetch();
+  }
+
+  /**
+   * 显示创建资源表单页.
+   *
+   * @return \think\Response
+   */
+  public function create()
+  {
+    //
+
+    $list = ModelCategory::getListLevel('',$this->request->param('type',1));
+
+    View::assign('list_category',$list);
+
+    return View::fetch();
+  }
+
+  /**
+   * 保存新建的资源
+   *
+   * @param  \think\Request  $request
+   * @return \think\Response
+   */
+  public function save(Request $request)
+  {
+    //
+
+    $post_data = $request->post();
+
+    if(empty($post_data['title'])){
+      return $this->error('标题不能为空',null,500);
+    }
+
+    $model_category = ModelCategory::where('title',$post_data['title'])
+    ->where('pid',$post_data['pid'])
+    ->find();
+
+    if(!empty($model_category)){
+      $this->error('相同名称相同级别不能出现两次',null,500);
+    }
+
+    if($post_data['pid'] != 0){
+      
+      $model_parent_category = ModelCategory::where('id',$post_data['pid'])->find();
+      
+      $post_data['level'] = $model_parent_category->level + 1;
+
+    }
+
+    ModelCategory::create($post_data);
+
+    return $this->success('添加成功',url('index',['type'=>$this->request->param('type')]));
+
+  }
+
+  /**
+   * 显示指定的资源
+   *
+   * @param  int  $id
+   * @return \think\Response
+   */
+  public function read($id)
+  {
+    //
+  }
+
+  /**
+   * 显示编辑资源表单页.
+   *
+   * @param  int  $id
+   * @return \think\Response
+   */
+  public function edit($id)
+  {
+    //
+
+    $model_category = ModelCategory::find($id);
+    
+    $list = ModelCategory::getListLevel('',$this->request->param('type',1));
+
+    View::assign('list_category',$list);
+    View::assign('category',$model_category);
+
+    return View::fetch();
+  }
+
+  /**
+   * 保存更新的资源
+   *
+   * @param  \think\Request  $request
+   * @param  int  $id
+   * @return \think\Response
+   */
+  public function update(Request $request, $id)
+  {
+    //
+
+    
+    $post_data = $request->post();
+
+    $model_category = ModelCategory::where('title',$post_data['title'])
+    ->where('pid',$post_data['pid'])
+    ->where('id','<>',$id)
+    ->find();
+
+    if(!empty($model_category)){
+      $this->error('相同名称相同级别不能出现两次');
+    }
+
+    if($post_data['pid'] != 0){
+      
+      $model_parent_category = ModelCategory::where('id',$post_data['pid'])->find();
+      
+      $post_data['level'] = $model_parent_category->level + 1;
+
+    }else{
+      $post_data['level'] = 1;
+    }
+
+    $model_category = ModelCategory::find($id);
+
+    $model_category->save($post_data);
+
+    return $this->success('保存成功',url('index',['type'=>$model_category->getData('type')]));
+
+
+  }
+
+  /**
+   * 删除指定资源
+   *
+   * @param  int  $id
+   * @return \think\Response
+   */
+  public function delete($id)
+  {
+    //
+
+    if($id == 0){
+      return json_message('错误');
+    }
+
+    $model_category = ModelCategory::find($id);
+
+    $pid = 0;
+
+    if($model_category->pid != 0){
+
+      $pid = $model_category->pid;
+    }
+
+    ModelCategory::where('pid',$id)->update(['pid'=>$pid]);
+
+    $model_category->delete();
+
+    return json_message();
+
+  }
+}