Yii的查詢所屬關係

Question

我有以下表格：

患者

• ID
• FIRST_NAME
• 姓氏

事件

• ID
• patient_id
• EVENT_DESCRIPTION

通知

• ID
• EVENT_ID
• notification_descript離子

我在我的模型定義如下關係：

Notification.php

public function relations() 
{ 
    return array(
       'event' => array(self::BELONGS_TO, 'Event', 'event_id'), 
      ); 
} 

Event.php

public function relations() 
{ 
    return array(
       'patient' => array(self::BELONGS_TO, 'Patient', 'patient_id'), 
    ); 
} 

我想所有通知名爲「Joe」和las的患者t名字「史密斯」。有沒有辦法做到這一點，而不寫出一條SQL語句？

Answer 1

您需要自定義搜索功能，如：

public function searchCandidates() { 
// Warning: Please modify the following code to remove attributes that 
// should not be searched. 

     $criteria = new CDbCriteria; 

     $criteria->with = array('candidate_relation');//this is a relation; you can pute here, relation_a.relation_b.relation_c 
     $criteria->compare('id', $this->id); 
     $criteria->compare('email', $this->email, true); 
     $criteria->compare('password', $this->password); 
     $criteria->compare('created', $this->created); 
     $criteria->compare('lastmodified', $this->lastmodified); 
     $criteria->compare('confirmed', $this->confirmed); 
     $criteria->compare('is_candidate', 1); 
     $criteria->compare('username', $this->username, true); 
     $criteria->compare('candidate_relation.first_name', $this->full_name, true);//and another relation here ... 
     $criteria->compare('candidate_relation.last_name', $this->full_name, true, 'OR'); 

     return new CActiveDataProvider($this, array(
      'criteria' => $criteria, 
     )); 
    } 

其中full_name是模型的自定義屬性：public $full_name;