45 lines
1.3 KiB
PHP
Executable File
45 lines
1.3 KiB
PHP
Executable File
<?php
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/**
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* @Author: fm453
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* @Date: 2018-11-21 04:18:24
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* @Last Modified by: fm453
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* @Last Modified time: 2019-10-07 17:16:03
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* @Email: fm453@lukegzs.com
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*/
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namespace common\components;
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use Yii;
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use yii\data\Pagination;
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use yii\widgets\ActiveForm;
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class Attachment extends ActiveForm
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{
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/*处理分页*/
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private $pagination;
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/**
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* 获取$pagination，提供给外部代码调用
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* @return mixed
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*/
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public function getPagination()
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{
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return $this->pagination;
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}
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public function getData($model,$where,$orderby)
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{
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// 预查询，此时还没有执行。where()条件查询、orderBy()排序等都应该放在这里
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$query = $model->find()->where($where)->orderBy($orderby);
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// 获取能够查询到的数据条目数量（这就是条件查询等语句要放在上一行代码的原因），但是还没有执行查询
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$count = $query->count();
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// 构造分页对象
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$this->pagination = new Pagination(['totalCount'=>$count,'defaultPageSize' => 12]);
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// 使用分页对象填充limit语句，并获得数据（此时才真正执行数据库查询）
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return $query->offset($this->pagination->offset)
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->limit($this->pagination->limit)
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->asArray()
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->all();
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}
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}
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