Tools/application/index/controller/Base.php

<?php
namespace app\index\controller;
use think\Controller; 
class Base extends Controller 
{
    public function _initialize(){
    	$data = db('column')->select();
        // $tags = db('tags')->select();
        $good =db('good')->select();


        //标签栏一个工具对应多个标签处理-----------------------------------
        $tags_id = input('id');
        // 找到所有标签，对其进行格式化处理
        $tags_data = db('tags')->select();
        $tags = [];
        foreach ($tags_data as $value) {
            $tags[$value['id']] = ['tagname'=>$value['tagname'], 'children'=>[]];
        }

        // 找到所有商品，判断商品是否在标签内
        $ta = db('good')->field('id, title, tags_id')->select();
        foreach ($ta as $val) {
            $tag_ids = explode(',', $val['tags_id']);
            
            if ($tag_ids) {
                foreach($tag_ids as $tid) {
                    if($tags[$tid]) {
                        $tags[$tid]['children'][] = $val;
                    }
                }
            }
        }
        //end---------------------------------------------------------



        $this->assign([
                'data'=>$data,
                'tags'=>$tags,
                'good'=>$good,
            ]);
 		
    	return view();
    }

    
	public function praise(){//点赞		
        $id = input('id');//获取当前点赞id
        $res = db('good')->where(array('id'=>$id))->field('likes')->find();
        if ($res) {  
            $res1 = db('good')->where('id',$id)->setInc('likes');//setInc:对指定字段进行加操作,setDec:对指定字段进行减操作
            if($res1){
                return 1;//点赞成功
            }else{
                return 2;//失败
            }
        }

    }




}