我有两个表,用户和交易。
$criteria->with = array('transactions'=>array('together'=>true));
$criteria->addCondition('transactions.user_id=users.id');
$criteria->order = 'SUM(transactions.amount) ASC';
当我使用此代码时,PHP显示错误。
答案 0 :(得分:0)
你可以试试这段代码:
用户模型。
<强> user.php的强>
<?php
/**
* This is the model class for table "users".
*
* The followings are the available columns in table 'users':
* @property string $id
* @property string $name
* @property string $lastname
* @property string $email
* @property string $password
* @property string $created_by
* @property string $created_date
* @property string $updated_by
* @property string $updated_date
*/
class Users extends CActiveRecord
{
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'users';
}
/**
* @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('name, lastname, email, password, created_by, created_date', 'required'),
array('name, lastname', 'length', 'max'=>255),
array('email, password', 'length', 'max'=>50),
array('created_by, updated_by', 'length', 'max'=>10),
array('updated_date', 'safe'),
// The following rule is used by search().
// @todo Please remove those attributes that should not be searched.
array('id, name, lastname, email, password, created_by, created_date, updated_by, updated_date', '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',
'name' => 'Name',
'lastname' => 'Lastname',
'email' => 'Email',
'password' => 'Password',
'created_by' => 'Created By',
'created_date' => 'Created Date',
'updated_by' => 'Updated By',
'updated_date' => 'Updated Date',
);
}
/**
* 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()
{
// @todo Please modify the following code to remove attributes that should not be searched.
$criteria=new CDbCriteria;
$criteria->compare('id',$this->id,true);
$criteria->compare('name',$this->name,true);
$criteria->compare('lastname',$this->lastname,true);
$criteria->compare('email',$this->email,true);
$criteria->compare('password',$this->password,true);
$criteria->compare('created_by',$this->created_by,true);
$criteria->compare('created_date',$this->created_date,true);
$criteria->compare('updated_by',$this->updated_by,true);
$criteria->compare('updated_date',$this->updated_date,true);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
/**
* Returns the static model of the specified AR class.
* Please note that you should have this exact method in all your CActiveRecord descendants!
* @param string $className active record class name.
* @return Users the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
}
<强> Transactions.php 强>
您可以在select语句中添加更多字段。
<?php
/**
* This is the model class for table "transactions".
*
* The followings are the available columns in table 'transactions':
* @property string $id
* @property string $user_id
* @property string $amount
* @property string $date
* @property string $created_by
* @property string $created_date
* @property string $updated_by
* @property string $updated_date
*/
class Transactions extends CActiveRecord
{
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'transactions';
}
/**
* @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('user_id, amount, date, created_by, created_date', 'required'),
array('user_id, amount', 'length', 'max'=>255),
array('created_by, updated_by', 'length', 'max'=>10),
array('updated_date', 'safe'),
// The following rule is used by search().
// @todo Please remove those attributes that should not be searched.
array('id, user_id, amount, date, created_by, created_date, updated_by, updated_date', '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(
'users' => array(self::BELONGS_TO, 'Users', 'user_id', 'joinType' => 'INNER JOIN', 'select' => ('id, name, lastname, email, password')),
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'user_id' => 'User',
'amount' => 'Amount',
'date' => 'Date',
'created_by' => 'Created By',
'created_date' => 'Created Date',
'updated_by' => 'Updated By',
'updated_date' => 'Updated Date',
);
}
/**
* 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()
{
// @todo Please modify the following code to remove attributes that should not be searched.
$criteria=new CDbCriteria;
$criteria->compare('id',$this->id,true);
$criteria->compare('user_id',$this->user_id,true);
$criteria->compare('amount',$this->amount,true);
$criteria->compare('date',$this->date,true);
$criteria->compare('created_by',$this->created_by,true);
$criteria->compare('created_date',$this->created_date,true);
$criteria->compare('updated_by',$this->updated_by,true);
$criteria->compare('updated_date',$this->updated_date,true);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
/**
* Returns the static model of the specified AR class.
* Please note that you should have this exact method in all your CActiveRecord descendants!
* @param string $className active record class name.
* @return Transactions the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
}
您可以使用此条件获得输出。
$criteria = new CDbCriteria;
$criteria->select = 'users.id,SUM(t.amount) as amount';
$criteria->with = 'users';
$criteria->together = true;
$criteria->group = 'users.id';
$criteria->order = 'amount ASC';
$model = Transactions::model()->findAll($criteria);
echo "<pre>";
print_r($model);
exit;
使用与foreach循环用户
的关系访问用户模型属性后例如: -
foreach ($model as $key => $value) {
echo $value->id."<br>";
echo $value->users->name."<br>";
echo $value->amount."<br>";
}