laravel——表操作集成操作

背景：通过判断不同的请求参数，返回不同的需要的数据

一、准备工作：

数据库新建一个表

DROP TABLE IF EXISTS `tb_category2`;

CREATE TABLE IF NOT EXISTS `tb_category2` (
  `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键',
  `category_id` int(10) UNSIGNED DEFAULT NULL COMMENT '一级品类id',
  `ename` varchar(64) NOT NULL COMMENT '英文名',
  `cname` varchar(64) NOT NULL COMMENT '中文名',
  `seq` int(10) UNSIGNED NOT NULL COMMENT '排序序号',
  PRIMARY KEY (`id`),
  UNIQUE key `category_id_index` (`category_id`)
) ENGINE=InnoDB AUTO_INCREMENT = 0 DEFAULT CHARSET=utf8 COMMENT = '二级业务品类';

// 如果主键设置了自增 末尾不必再设置AUTO_INCREMENT 或者 AUTO_INCREMENT = 0

导入数据：

INSERT INTO `tb_category2` (`category_id`, `ename`, `cname`, `seq`)
VALUES ( '1', 'MOBA', 'MOBA', '1'), ( '1', '战争策略', '战争策略', '2')

// UNIQUE 表示为唯一值，category_id设置唯一后插入相同值会报错！需要删除上面的设置

二、新建调用方法：

1.五类路由：获取/搜索、新增、修改、设置（无新建、有修改）、删除

Route::post('business/getCategory2Info', 'ProjectController\BusinessManage\BusinessCategory2@getCategory2Info');
Route::post('business/addCategory2Info', 'ProjectController\BusinessManage\BusinessCategory2@addCategory2Info');
Route::post('business/updateCategory2Info', 'ProjectController\BusinessManage\BusinessCategory2@updateCategory2Info');
Route::post('business/setCategory2Info', 'ProjectController\BusinessManage\BusinessCategory2@setCategory2Info');
Route::post('business/delCategory2Info', 'ProjectController\BusinessManage\BusinessCategory2@delCategory2Info');

2.直接调用的方法：用于获取请求参数

<?php
namespace App\Http\Controllers\ProjectController\BusinessManage;//命名空间
use App\Http\Controllers\ProjectModel\BusinessManage\Category2Info;//间接操作
use App\Http\Controllers\ProjectModel\JsonRequest; //格式化数据
// 文件名 = 类名 （否则报错）
class BusinessCategory2
{
  //构建实例
  private $json_request;
  private $categoryInfo;
  public function __construct()
  {
    $this->json_request = resolve(JsonRequest::class);
    $this->category2Info = new Category2Info();//统一请求，定义在Database外部
  }

  //获取/搜索
  public function getCategory2Info()
  {
    $category2_id = $this->json_request->get( 'category2_id');
    $res = $this->category2Info->getTbCategory2Info($category2_id);
    return response()->success($res);
  }
  //新增:没有对象的概念，建议单独传参数
  public function addCategory2Info()
  {
    $params = []
    $params['category2_id'] = $this->json_request->get( 'category2_id');
    $params['ename'] = $this->json_request->get( 'ename');
    $params['cname'] = $this->json_request->get( 'cname');
    $res = $this->category2Info->addTbCategory2Info($params);
    return response()->success($res);
  }
  //修改：同上
  public function updateCategory2Info()
  {
    $params = []
    $params['id'] = $this->json_request->get( 'id');
    $params['category2_id'] = $this->json_request->get( 'category2_id');
    $params['ename'] = $this->json_request->get( 'ename');
    $params['cname'] = $this->json_request->get( 'cname');
    $res = $this->category2Info->updateTbCategory2Info($params);
    return response()->success($res);
  }

  //设置：新建或修改
  public function setCategory2Info()
  {
    $params_list = $this->json_request->get( 'params_list');
    $res = $this->category2Info->setTbCategory2Info( $params_list);
    return response()->success($res);
  }
  //删除
  public function delCategory2Info()
  {
    $id = $this->json_request->get('id');
    $res = $this->category2Info-> delTbCategory2Info($id);
    return response()->success($res);
  }
}

3.中间件处理：用于处理相关表的逻辑，如不可删除已关联的数据

方式1：路由中拦截（middleware()是全局方法，如权限控制）

Route::post('business/getCategoryInfo', 'ProjectController\BusinessManage\BusinessCategory@getCategoryInfo')->middleware('WriteableMiddleware:related');

方式2：中间件处理

<?php
namespace App\Http\Controllers\ProjectModel\BusinessManage;
use App\Http\Controllers\ProjectModel\BusinessManage\Database\TbCategory2Info;
use App\Http\Controllers\ProjectModel\ActivityManage\Logic\ActivityList;
use App\Http\Controllers\ProjectModel\Common\Protocol\Errors\Logic\Error;
class Category2Info {

    private $TbCategory2Info;

    public function __construct()
    {
        $this->tbCategory2Info = new TbCategory2Info();
    }

    /**
     * 获取 / 搜索
     * @param  null / string
     * @return array
     **/
    public function getTbCategory2Info($category2_id)
    {
        $info = $this->tbCategory2Info->getCategory2Info($category2_id);
        return $info;
    }
    /**
     * 新增：递增到最后一列
     * @param object
     * @return object
     **/
    public function addTbCategory2Info($params)
    {
        $info = $this->tbCategory2Info->addCategory2Info($params);
        return $info;
    }
    /**
     * 修改：某一列
     * @param object
     * @return object
     **/
    public function updateTbCategory2Info($params)
    {
        $info = $this->tbCategory2Info->updateCategory2Info($params);
        return $info;
    }
    /**
     * 设置：遍历新建或修改
     * @param array
     * @return array
     **/
    public function setTbCategory2Info($params_list)
    {
        $info = $this->tbCategory2Info->setCategory2Info($params_list);
        return $info;
    }
    /**
     * 删除：【添加表的关联限制】
     * @param string / number
     * @return object
     **/
    public function delTbCategory2Info($category2_id)
    {
        $activityClass = resolve_class(ActivityList::class);
        $activityList = $activityClass::search(["activity.category2.id"=>$category2_id]);
        if ( !$activityList->isEmpty() ) {
            throw new Error("有活动引用，需要先删除活动");
        }else{
            return $this->tbCategory2Info->delCategory2Info($category2_id);
        }
    }
}
?>

3.表的实际操作：

<?php
namespace App\Http\Controllers\ProjectModel\BusinessManage\Database;
use App\Http\Controllers\ProjectModel\Common\Database\EloBusinessBaseDatabase; //父类
class TbCategory2Info extends EloBusinessBaseDatabase {
    //表名
    protected $table = "tb_category2";

    //主键名
    protected $primaryKey = "id";

    //主键是自增id
    public $incrementing = true;

    //所有字段可以批量修改
    protected $guarded = [];

    /**
     * 获取 / 搜索
     * @param  null / string
     * @return array
     **/
    public function getCategory2Info($id)
    {
        $ret = [];
        if ($id) { //是否为空
            $ret = static::where("id", $id)->get();
        } else { //获取所有品类id
            $ret = static::all();
        }
        return $ret;//返回的内容
    }
    /**
     * 新增：递增到最后一列
     * @param object
     * @return object
     **/
    public function addCategory2Info($params)
    {
        if($params['category_id'] && $params['ename'] && $params['cname']){
            return static::create( $params);
        } else {
            return "请求参数不全";
        }
    }
    /**
     * 修改：某一列
     * @param object
     * @return object
     **/
    public function updateCategory2Info($params)
    {
        if(!$params['id'] || !$arams['category_id'] || !$params['ename'] || !$params['cname']){
            return "请求参数不全";
        } else {
            return static::where( "id", $business_id)->update($info);
        }
    }
    /**
     * 设置：遍历新建或修改
     * @param array
     * @return array
     **/
    public function setCategory2Info($param)
    {
        foreach ($param as $item) {
            // 方式1：
            if (isset($item->id)) { //id存在：修改
                static::where("id", $item["id"])->update($item);
            } else { //创建
                static::create($item);
            }
            // 方式2：
            // $newItem = static::firstOrNew(["id" => $item->id]);// 返回某一条实例{xxx}
            // $newItem->category_id = $item->category_id;
            // $newItem->ename = $item->ename;
            // $newItem->cname = $item->cname;
            // $newItem->save();
        }
        return static::all(); //返回所有参数
    }
    /**
     * 删除：
     * @param string / number
     * @return object
     **/
    public function delCategory2Info($id)
    {
        if($id){
            return static::where( "id", $id)->delete();
        } else {
            return "参数不可为空";
        }
    }
}
?>

整合与优化：

<?php
namespace App\Http\Controllers\ProjectModel\BusinessManage\Database;
use App\Http\Controllers\ProjectModel\Common\Database\EloBusinessBaseDatabase; //父类
class TbCategory2Info extends EloBusinessBaseDatabase {
    //表名
    protected $table = "tb_category2";

    //主键名
    protected $primaryKey = "id";

    //主键是自增id
    public $incrementing = true;

    //所有字段可以批量修改
    protected $guarded = [];

    /**
     * 获取 / 搜索
     * @param  null / string
     * @return array
     **/
    public function getCategory2Info($id)
    {
        $ret = [];
        if ($id) { //是否为空
            $ret = static::where("id", $id)->get();
        } else { //获取所有品类id
            $ret = static::all();
        }
        return $ret;//返回的内容:无参数问题
    }
    /**
     * 新增：递增到最后一列
     * @param object
     * @return object
     **/
    public function addCategory2Info($params)
    {
        if($params['category_id'] && $params['ename'] && $params['cname']){
            return static::create( $params);
        } else {
            return "请求参数不全";
        }
    }
    /**
     * 修改：某一列
     * @param object
     * @return object
     **/
    public function updateCategory2Info($params)
    {
        if($params['id'] && $params['category_id'] && $params['ename'] && $params['cname']){
            return static::create( $params);
        } else {
            return "请求参数不全";
        }
    }
    /**
     * 设置：遍历新建或修改
     * @param array
     * @return array
     **/
    public function setCategory2Info($arr)
    {
        if(count($arr) > 0){
            foreach ($arr as $item) {
                if (isset($item->id)) { //id存在：修改
                    static::where("id", $item->id)->update($item);
                } else { //创建
                    static::create($item);
                }
            }
            return static::all(); //返回所有
        } else {
            return "请求参数array不可为空";
        }
    }
    /**
     * 删除：
     * @param string / number
     * @return object
     **/
    public function delCategory2Info($id)
    {
        if($id){
            return static::where( "id", $id)->delete();
        } else {
            return "请求参数id不可为空";
        }
    }
}
?>

搜索优化：

    /**
     * 获取 / 搜索
     * @param  null / string
     * @return array
     **/
    public function getCategory2Info($keyword)
    {
        $allInfo = static::all();
        if ($keyword) { //是否为空
            // 方式1
            $keyWordInfo = [];
            // foreach ($allInfo as $curInfo){
            //     if (strpos($curInfo["ename"], $keyWord) !== false || strpos($curInfo["cname"], $keyWord) !== false){
            //         $keyWordInfo[] = $curInfo;
            //     } else {
            //         return [];
            //     }
            // }
            // 方式2
            $keyWordInfo = static::where([ //多个条件
                    ['ename', 'like', "%{$keyword}%"],
                    ['cname', 'like', "%{$keyword}%"],
                ])->get();
            return $keyWordInfo;//返回的内容
        }else{
            return $allInfo;//返回的内容
        }
    }

 返回报错优化：请求参数有误需要中止返回 throw new Logic\Error("xxx");

<?php
namespace App\Http\Controllers\ProjectModel\BusinessManage\Database;
use App\Http\Controllers\ProjectModel\Common\Database\EloBusinessBaseDatabase; //父类
use App\Http\Controllers\ProjectModel\Common\Protocol\Errors\Logic;
class TbCategory2Info extends EloBusinessBaseDatabase {
    /**
     * 删除：
     * @param string / number
     * @return object
     **/
    public function delCategory2Info($id)
    {
        if($id){
            return static::where( "id", $id)->delete();
        } else {
            throw new Logic\Error("请求参数id不可为空");
        }
    }
}
?>

输出方法集：https://www.cnblogs.com/wheatCatcher/p/11215832.html

 php语法：https://www.php.net/manual/zh/language.types.array.php

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