Yii: how to find the specified fields in findfindAll, yiifindall_PHP tutorial

Yii method for finding the specified field in findfindAll, yiifindall. Yii describes how to use findfindAll to find the specified field. yiifindall finds an object modelName: model ()-find (): modelName: model ()-findALL () find the Yii method for finding findAll to find the specified field, yiifindall

General Office

ModelName: model ()-> find () // identifies an object modelName: model ()-> findALL () // identifies an array of an object set

How can I find out the data of all fields instead of the data of all fields?

I did this before.

$criteria = new CDbCriteria;$criteria->select = 'username,id,email';$criteria->order = 'id DESC';$users = modelName::model()->findAll( $criteria );

The background accidentally saw what others wrote and how ignorant they were.

$users = modelName::model()->findAll(array(    'select' =>array('username','id','email'),    'order' => 'id DESC', ));

After the test, it is found that it can be used, so find can also perform this operation.

$user = modelName::model()->find(array(    'select' =>array('username','id','email'),    'order' => 'id DESC',    'condition' => 'id='.$id,));

Of course, it is definitely not safe to do so. the method below is the same.

$users = $this->user->find(array(    'select'=>array('id','username','email'),    'order' => 'id DESC',    'condition' => 'state=:state AND id=:id',    'params' => array(':state'=>'1',':id' => '2'),));

Similarly, you can use findAll to test it. conclusion:

This method can easily obtain the required data. of course, the following CDbCriteria

Yii Framework, $ retrievedProject = Project: model ()-> findall (); how to output?

$ RetrievedProject = Project: model ()-> findall ();
Foreach ($ retrievedProject as $ v ){
Echo $ v-> attributes ['title'];
}
 

Yii query statement writing

Write as follows:
$ Db = new CDbCriteria ();
$ Db-> addInCondition ('id', array (1, 2, 3 ));
$ Newstypelist = NewsType: model ()-> findAll ($ db );

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