platform-trace/app/Repositories/MetaRepository.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019-06-10
 * Time: 17:40
 */
namespace App\Repositories;

use App\Models\Meta;
use BaconQrCode\Encoder\QrCode;
use Dingo\Api\Http\Response;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\DB;
use Illuminate\Database\QueryException;
use Illuminate\Support\Facades\Log;

class MetaRepository {
    public function __construct(Meta $meta){
        $this->meta = $meta;
    }
    //列表
    public function index($request){
        $perPage = isset($request['per_page']) ? $request['per_page'] : 20;
        $where = [];
        if(isset($request['patch_num']) && $request['patch_num']){
            $where[] = ['patch_num','like',"%".$request['patch_num']];
        }
        return $this->meta->where($where)->orderBy('id', 'desc')->paginate($perPage);
    }
    //详情
    public function view($request){
        return $this->meta->where(['id'=>$request['patch_num']])->first();
    }
    //创建
    public function create($request){
        $category = $this->meta->where(['patch_num'=>$request['patch_num']])->first();
        if($category){
            return Response::create([
                'message'  => '该批次已存在',
                'status_code'   => 500
            ]);
        }
        if(count($request['farm'])>10){
            return Response::create([
                'message'  => '农场图片不能超过10张',
                'status_code'   => 500
            ]);
        }
        $data = [
            'patch_num' => $request['patch_num'],
            'produce_date' => $request['produce_date'],
            'variety' => $request['variety'],
            'variety_img' => $request['variety_img'],
            'age' => $request['age'],
            'food' => $request['food'],
            'food_img' => $request['food_img'],
            'water' => $request['water'],
            'water_img' => $request['water_img'],
            'logistical' => $request['logistical']??'',
            'farm' => \GuzzleHttp\json_encode($request['farm']),
            'report' => $request['report'],
        ];

        DB::beginTransaction();
        try{
            $meta = $this->meta->create($data);

            DB::commit();
            QrCode::size(200)->generate("http://uptoyo.com/".$meta['id'],public_path().'/qrcodes/'.$meta['patch_num'].'.png');
            return Response::create();
        }catch (QueryException $exception){
            DB::rollBack();
            Log::debug('新增元数据失败：'.$exception->getMessage());
            return Response::create([
                'message'  => '新增元数据失败，请重试',
                'error' => $exception->getMessage(),
                'status_code'   => 500
            ]);
        }
    }
    //修改
    public function update($request){
        $category = $this->meta->where('id', $request['id'])->first();
        if(isset($request['is_suggest']) && $request['is_suggest'] !== null){
            $category->is_suggest = $request['is_suggest'];
        }
        $res = $category->save();
        if($res){
            return Response::create();
        }
    }
}