<?php

namespace App\Modules\Book\Models;

use Illuminate\Database\Eloquent\Model;

class Book extends Model
{
    protected  $table = 'books';
    protected  $fillable = ['ly_bid','name','author','intro','cover','category_name','keyword',
        'category_id','status','chapter_count','first_cid','last_cid','size','last_chapter','sequence'];

    /**
     * 获取分类id
     * @return array
     */
    public static function getCategoryId(){
         $res = self::select('category_id')->distinct()->get()->toArray();
         $data = [];
         foreach ($res as $v){
            array_push($data,$v['category_id']);
         }
         return $data;
    }
    
    /**
     * 获取book
     * @return array
     */
    public static function getBook($bid){
    	$res = self::select('*')->where('id',$bid)->first();
    	return $res;
    }
    /**
     * @param $bids
     * @return mixed
     */
    public static function getBooksByIds($bids)
    {
        if (empty($bids)) {
            return [];
        }
        return self::whereIn('id', $bids)->get();
    }
}