<?php

namespace app\model;

class Book extends Base
{
    protected $createTime = 'create_time';
    protected $updateTime = false;

    public static function getPageList($categoryID = 0, $name = '', $size = 20)
    {
        return self::alias('b')
        ->leftJoin('category c', 'b.category_id = c.id')
        ->field('b.*,c.name as category_name')
        ->when(!empty($categoryID) && $categoryID > 0, function($query) use($categoryID){
            $query->where('b.category_id', $categoryID);
        })
        ->when(!empty($name), function($query) use($name){
            $query->where('b.name', 'like', "%$name%");
        })
        ->order('b.id desc')
        ->paginate([
            'list_rows'=> $size,
            'var_page' => 'page',
        ]);
    }

    public static function getByName($name)
    {
        $name = trim($name);
        return self::where('name', $name)->findOrEmpty();
    }

}