Hi everyone, I’m new to Yii and I’d need some help. Please forgive my grammar mistakes but english is not my native language. Now on the problem:
I need to copy a row from a table located in a database to a clone table I created in another database. What I’m trying to implement is an “export” feature from the mother database to a custom istance of my application. This is my original model generated with Gii:
class Sostanza extends CActiveRecord
{
/**
* Returns the static model of the specified AR class.
* @param string $className active record class name.
* @return Sostanza the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'sostanza';
}
/**
* @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('famiglia_sostanza_id', 'numerical', 'integerOnly'=>true),
array('codice, descrizione', 'safe'),
// The following rule is used by search().
// Please remove those attributes that should not be searched.
array('id, famiglia_sostanza_id, codice, descrizione', '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(
'famigliaSostanza' => array(self::BELONGS_TO, 'FamigliaSostanza', 'famiglia_sostanza_id'),
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'famiglia_sostanza_id' => 'Famiglia Sostanza',
'codice' => 'Codice',
'descrizione' => 'Descrizione',
);
}
/**
* Retrieves a list of models based on the current search/filter conditions.
* @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;
$criteria->compare('id',$this->id);
$criteria->compare('famiglia_sostanza_id',$this->famiglia_sostanza_id);
$criteria->compare('codice',$this->codice,true);
$criteria->compare('descrizione',$this->descrizione,true);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
/**
* @param int $famiglia_sostanza_id
* @return array for listbuilder (id => name)
*/
public function findSostanzaByFamiglia($famiglia_sostanza_id)
{
$criteria=array(
'select'=>"id, descrizione",
'condition'=>'famiglia_sostanza_id='.$famiglia_sostanza_id,
'order'=>'id',
);
return CHtml::listData($this->findAll($criteria),'id','descrizione');
}
public function updateSostanzaFamiglia($id, $famiglia_sostanza_id)
{
$model=$this->findByPk($id);
$model->famiglia_sostanza_id=$famiglia_sostanza_id;
$model->update('famiglia_sostanza_id');
}
public function findAllSostanza()
{
$criteria=array(
'select'=>"id, descrizione",
'condition'=> '1=1',
'order'=>'id',
);
return CHtml::listData($this->findAll($criteria),'id','descrizione');
}
}
Then I created an extension of CActiveRecord in order to get access to a differnt db ("dbExport") connection with the entity which would represent clone table rows:
class ExportedEntity extends CActiveRecord {
private static $dbExport = null;
protected static function getDbExportConnection()
{
if (self::$dbExport!== null)
return self::$dbExport;
else
{
self::$dbExport = Yii::app()->dbExport;
if (self::$dbExport instanceof CDbConnection)
{
self::$dbExport->setActive(true);
return self::$dbExport;
}
else
throw new CDbException(Yii::t('yii','Active Record requires a "db" CDbConnection application component.'));
}
}
}
Which was extended by the new entity where I overrided the method getDbConnection to get the correct destination database
<?php
class SostanzaExport extends ExportedEntity{
public function getDbConnection(){
return self::getDbExportConnection();
}
public static function model($className=__CLASS__)
{
return parent::model($className);
}
/**
* @return string the associated database table name
*/
public function tableName()
{
return 'sostanza';
}
/**
* @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('famiglia_sostanza_id', 'numerical', 'integerOnly'=>true),
array('codice, descrizione', 'safe'),
// The following rule is used by search().
// Please remove those attributes that should not be searched.
array('id, famiglia_sostanza_id, codice, descrizione', '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(
'famigliaSostanza' => array(self::BELONGS_TO, 'FamigliaSostanza', 'famiglia_sostanza_id'),
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'famiglia_sostanza_id' => 'Famiglia Sostanza',
'codice' => 'Codice',
'descrizione' => 'Descrizione',
);
}
/**
* Retrieves a list of models based on the current search/filter conditions.
* @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;
$criteria->compare('id',$this->id);
$criteria->compare('famiglia_sostanza_id',$this->famiglia_sostanza_id);
$criteria->compare('codice',$this->codice,true);
$criteria->compare('descrizione',$this->descrizione,true);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
/**
* @param int $famiglia_sostanza_id
* @return array for listbuilder (id => name)
*/
public function findSostanzaByFamiglia($famiglia_sostanza_id)
{
$criteria=array(
'select'=>"id, descrizione",
'condition'=>'famiglia_sostanza_id='.$famiglia_sostanza_id,
'order'=>'id',
);
return CHtml::listData($this->findAll($criteria),'id','descrizione');
}
public function updateSostanzaFamiglia($id, $famiglia_sostanza_id)
{
$model=$this->findByPk($id);
$model->famiglia_sostanza_id=$famiglia_sostanza_id;
$model->update('famiglia_sostanza_id');
}
public function findAllSostanza()
{
$criteria=array(
'select'=>"id, descrizione",
'condition'=> '1=1',
'order'=>'id',
);
return CHtml::listData($this->findAll($criteria),'id','descrizione');
}
/*
public function exportSostanza(){
$this->save();
}
*/
}
finally I added this snippet to my SiteController to implement the cloning and save
public function actionExportSostanza()
{
if(isset($_POST['Sostanza']['export']))
{
foreach ($_POST['Sostanza']['export'] as $row){
$exportRow = new SostanzaExport;
$exportRow->attributes = $row->attributes;
$exportRow->id = null;
$exportRow->isNewRecord = true;
$exportRow->save();
}
}
$this->redirect(array('site/index','view'=>'index'));
}
This refers to the widget I placed in my view, which is as follows:
<?php echo CHtml::beginForm($this->createUrl('exportSostanza')); ?>
<?php
$this->widget('ext.widgets.multiselects.XMultiSelects',array(
'leftTitle'=>'DB Source',
'leftName'=>'Sostanza[source][]',
'leftList'=>Sostanza::model()->findAllSostanza(),
'rightTitle'=>'DB Exported',
'rightName'=>'SostanzaExport[export][]',
'rightList'=>SostanzaExport::model()->findAllSostanza(),
'size'=>20,
'width'=>'200px',
));
?>
<br />
<?php echo CHtml::submitButton(Yii::t('ui', 'Save'), array('class'=>'btn btn-primary')); ?>
<?php echo CHtml::endForm(); ?>
The widget correctly brings up both lists from the two databases. However, if I move an item from column “source” to “export” and then click on the “save” button I get an error pointing out that I’m “Trying to get property of non-object”. What am I missing here? I searched around on the web and on the forums but I was unable to find any clue or alternative. Let me thank you anticipately for your time and help, it would be much appreciated.