Yii 关于AR分表
<?php
/**
* This is the model class for table "t_user".
*
* The followings are the available columns in table 't_user':
* @property string $userid
* @property string $id
* @property string $withdraw
* @property string $amount
* @property string $ctime
*/
class CollectRecord extends CActiveRecord
{
/**
* @return string the associated database table name
*/
public function tableName()//主要是对tableName进行改进
{
$date = time();
$tablename = $this->getTableName($date);
return $tablename;
}
private function getTableName($date){
$time = intval($date) + 28800;//为何+28800自己琢磨下就知道了
$tableend = floor($time/604800);//每周进行一次表的维护新建
$tableName = __CLASS__.'_'.$tableend;
$sql='SHOW FULL COLUMNS FROM '.$tableName;
try
{
$tableExist=!!($this->getDbConnection()->createCommand($sql)->queryAll());
}
catch(Exception $e)
{
$tableExist= false;
}
if(!$tableExist){
try {
$db = $this->getDbConnection();
$db->createCommand()->createTable($tableName, array(
'id' => 'pk',
'withdraw' => 'tinyint(1)',//true is Deposits false is withdrawals；
'amount' => 'decimal(20,4)',
'userid' => 'int(11)',
'ctime' => 'int(11)',
));
}catch (\yii\db\Exception $exc){
return false;
}
}
return $tableName;
}
/**
* @return array validation rules for model attributes.
*/
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
array('withdraw,amount,cuserid', 'required'),
array('cuserid,ctime', 'numerical', 'integerOnly'=>true),
array('userid, ctime', 'length', 'max'=>11),
array('amount', 'length', 'max'=>20),
array('withdraw', 'length', 'max'=>4),
// The following rule is used by search().
// Please remove those attributes that should not be searched.
array('userid, amount, withdraw, ctime,id', 'safe', 'on'=>'search'),
);
}
/**
* @return array relational rules.
*/
public function relations()
{
// NOTE: you may need to adjust the relation name and the related
// class name for the relations automatically generated below.
return array(
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'Id',
'withdraw' => 'Withdraw Or Deposit',
'amount' => 'Amount',
'userid' => 'User',
'ctime' => 'Create Time',
);
}
/**
* Retrieves a list of models based on the current search/filter conditions.
*
* Typical usecase:
* - Initialize the model fields with values from filter form.
* - Execute this method to get CActiveDataProvider instance which will filter
* models according to data in model fields.
* - Pass data provider to CGridView, CListView or any similar widget.
*
* @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
*/
public function search()
{
// Warning: Please modify the following code to remove attributes that
// should not be searched.
$criteria=new CDbCriteria;
$criteria->compare('userid',$this->userid,true);
$criteria->compare('amount',$this->amount,true);
$criteria->compare('id',$this->id,true);
$criteria->compare('withdraw',$this->withdraw,true);
$criteria->compare('ctime',$this->ctime,true);
return new CActiveDataProvider($this->tableName(), array(
'criteria'=>$criteria,
));
}
/**
* Returns the static model of the specified AR class.
* @return t_user the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
}