<?php
namespace app\common\model;

use app\hander\HelpHander;
use think\Db;
use think\Model;

class Banner extends Model
{

    public function add(){
        $data = [
            'id' => input('id/d',0),
            'title' => input('title','','trim'),
            'img' => input('img','','trim'),
            'type' => input('type/d','0'),
            'enable' => input('enable/d',0),
            'sort' => input('sort/d',0)
        ];
        $logdata = json_encode($data);

        $result = validate('Banner')->check($data,[],'');
        if(true !== $result){
            HelpHander::error(validate('Banner')->getError());
        }
        $id = $data['id'];
        unset($data['id']);
        if($id > 0){
            $ret = $this->allowField(true)->save($data,['id'=>$id]);
        }else{
            $ret = $this->allowField(true)->save($data);
        }
        if(!$ret){
            HelpHander::error('操作失败');
        }

        if($id > 0){
            $content = '修改轮播图';
        }else{
            $content = '添加轮播图';
        }
        model('ActionLog')->add(18,$content,0,$logdata);
        return true;
    }

    public function info($id){
        $info = $this->where('id',$id)->find();
        if(!$info){
            HelpHander::error('数据不存在');
        }
        return $info->toArray();
    }

    public function lists($page,$size,$type,$title){
        $map[] = ['del','=',0];
        if($title != ''){
            $map[] = ['title','like','%'.$title.'%'];
        }
        if(in_array($type,[0,1])){
            $map[] = ['type','=',$type];
        }
        $lists = $this
            ->where($map)
            ->page($page,$size)
            ->order('sort asc,id asc')
            ->select();
        $total = $this->where($map)->count();
        $data = [
            'total' => $total,
            'list' => $lists?$lists->toArray():[]
        ];
        return $data;
    }

    public function del($id){
        $ret = $this->where('id',$id)->delete();
        if(!$ret){
            HelpHander::error('删除失败');
        }
        $logdata = json_encode(['id' => $id]);
        model('ActionLog')->add(18,'删除轮播图',0,$logdata);
        return true;
    }

}