php - 如何对同一搜索模型同时使用 condition() 和 addcondition()

Question

我有一个条件为“upload_date = today”的 GridView ，但是当我搜索其他日期时，它没有过滤网格。这是我的模型:

public function search()
{
    // Warning: Please modify the following code to remove attributes that
    // should not be searched.
    $date=date('Y-m-d');
    $criteria=new CDbCriteria(array('order'=>'upload_date ASC'));
    $criteria->condition = "upload_date='$date' ";
     if(isset($_GET['upload_date']))
           {
           $criteria->addCondition('upload_date = :upload_date','AND'); 
          $criteria->params[':upload_date'] = $this->upload_date;
             }

    $criteria->compare('book_id',$this->book_id);
    $criteria->compare('date_received',$this->date_received,true);
    $criteria->compare('batch',$this->batch,true);
    $criteria->compare('isbn_no',$this->isbn_no,true);
    $criteria->compare('book_title',$this->book_title,true);
    $criteria->compare('auther_name',$this->auther_name,true);
    $criteria->compare('upload_date',$this->upload_date,true);

    return new CActiveDataProvider($this, array(
        'criteria'=>$criteria,
        'pagination'=>array(
        'pageSize'=>50
        ),

    ));
}

我正在尝试在同一搜索中同时使用条件和添加条件。我在上面的模型中做错了什么？

Answer 1

试试这个:

public function search()
{
 $criteria=new CDbCriteria(array('order'=>'upload_date ASC'));

 if(isset($_GET['ModelName']['upload_date']))
 {
  $criteria->compare('upload_date',$this->upload_date,true);
  // $criteria->addCondition('upload_date = :upload_date');
  // $criteria->params[':upload_date'] = $this->upload_date;
 }
 else 
 {
  $date=date('Y-m-d');
  $criteria->condition = "upload_date='$date' "; 
 }
  $criteria->compare('book_id',$this->book_id);
  $criteria->compare('date_received',$this->date_received,true);
  $criteria->compare('batch',$this->batch,true);
  $criteria->compare('isbn_no',$this->isbn_no,true);
  $criteria->compare('book_title',$this->book_title,true);
  $criteria->compare('auther_name',$this->auther_name,true);
  $criteria->compare('upload_date',$this->upload_date,true);

  return new CActiveDataProvider($this, array(
     'criteria'=>$criteria,
     'pagination'=>array(
     'pageSize'=>50
     ), 

 ));
}

您不需要 addCondition，特别是因为您要向同一列添加条件。

编辑:
在您的主要初始条件中，您已经设置了 upload_date = $date，现在如果您向其添加条件，例如 $_GET['ModelName']['upload_date'] provided通过过滤器中的用户，您的实际数据库查询将变成类似 select * from tbl_name where upload_date = 'xxx' and upload_date = 'yyy' ，这里 xxx=$date 你给了，和 yyy=用户提供的日期。现在如果 xxx != yyy，查询将如何返回任何值？这是不可能的。

希望你明白这个解释。