Yii 1.1.16 Articles with pictures cannot be modified

I have an article with a picture, but when I change it I find that I can't get the picture
This is example.php is the model file

/** * The Model class for table "Example". * * The followings was the available columns in table ' example ': * @property integer $id * @property string $img * @property string $title * @property string $url * @property integer $sta Te * @property string $detail */public function rules () {//note:you should only define rules for those attrib Utes that//would receive user inputs. Return Array (' IMG, title, state ', ' required '), Array (' state ', ' numerical ', ' integeronly ' = true), Array (' title, url ', ' Length ', ' Max ' =>150), Array (' img ', ' file ', ' AllowEmpty ' =>true, ' Ty pes ' = ' bmp,jpg,png,gif '), array (' detail ', ' safe '),//The following rule is used by search (). @todo Please remove those attributes, should not being searched. Array (' ID, img, title, URL, State, detail ', ' safe ', ' on ' = ' search '),); }

This is a examplecontroller.php file

    Public Function Actionupdate ($id) {$model = Example::model ()->findbypk ($id);            if ($model ==null) {$this->redirect (Array (' index '));                }else{$oldPic = $model->img;                                        if (Isset ($_post[' Example ')) {$model->attributes=$_post[' Example '];                    $model->img = $oldPic;                    $fileupload = Cuploadedfile::getinstance ($model, ' img '); if ($fileupload! = null) {$filename = ' images/'. Time (). '. '.                        $fileupload->extensionname;                            if ($fileupload->saveas ($filename)) {$model->img = $filename;                        if (file_exists ($oldPic)) unlink ($oldPic); }} if ($model->save ()) {$this->redi                    Rect (Array (' index '));         }else{               $this->render (' Update ', array (' model ' = $model,)); }}else{$this->render (' Update ', array (' model ' =&GT                ; $model,)); }            }    }

This is view text _form.php

  
   beginWidget('CActiveForm', array(    'id'=>'example-form',    // Please note: When you enable ajax validation, make sure the corresponding    // controller action is handling ajax validation correctly.    // There is a call to performAjaxValidation() commented in generated controller code.    // See class documentation of CActiveForm for details on this.    'enableAjaxValidation'=>false,    'htmlOptions' => array('enctype' => 'multipart/form-data'))); ?>        
  
   labelEx($model,'img'); ?>        
  
   $model->img)); ?>图片推荐大小为500x600        
  
   isNewRecord){ echo ''; }else{ ?>
img; ?>">
  
           
  
   error($model,'img'); ?>    

The problem is that I created the successful file, to edit in addition to the image of the other content, the picture is lost, he does not save the picture

This is a picture of my successful creation

I want to edit

I changed the title a bit.

And then save the results, and the problem comes up.

In the end where the problem, I just contact Yii, my yii version is 1.1.16, please fix it!!

Reply content:

I have an article with a picture, but when I change it I find that I can't get the picture.
This is example.php is the model file.

/** * The Model class for table "Example". * * The followings was the available columns in table ' example ': * @property integer $id * @property string $img * @property string $title * @property string $url * @property integer $sta Te * @property string $detail */public function rules () {//note:you should only define rules for those attrib Utes that//would receive user inputs. Return Array (' IMG, title, state ', ' required '), Array (' state ', ' numerical ', ' integeronly ' = true), Array (' title, url ', ' Length ', ' Max ' =>150), Array (' img ', ' file ', ' AllowEmpty ' =>true, ' Ty pes ' = ' bmp,jpg,png,gif '), array (' detail ', ' safe '),//The following rule is used by search (). @todo Please remove those attributes, should not being searched. Array (' ID, img, title, URL, State, detail ', ' safe ', ' on ' = ' search '),); }

This is a examplecontroller.php file

    Public Function Actionupdate ($id) {$model = Example::model ()->findbypk ($id);            if ($model ==null) {$this->redirect (Array (' index '));                }else{$oldPic = $model->img;                                        if (Isset ($_post[' Example ')) {$model->attributes=$_post[' Example '];                    $model->img = $oldPic;                    $fileupload = Cuploadedfile::getinstance ($model, ' img '); if ($fileupload! = null) {$filename = ' images/'. Time (). '. '.                        $fileupload->extensionname;                            if ($fileupload->saveas ($filename)) {$model->img = $filename;                        if (file_exists ($oldPic)) unlink ($oldPic); }} if ($model->save ()) {$this->redi                    Rect (Array (' index '));         }else{               $this->render (' Update ', array (' model ' = $model,)); }}else{$this->render (' Update ', array (' model ' =&GT                ; $model,)); }            }    }

This is view text _form.php

  
   beginWidget('CActiveForm', array(    'id'=>'example-form',    // Please note: When you enable ajax validation, make sure the corresponding    // controller action is handling ajax validation correctly.    // There is a call to performAjaxValidation() commented in generated controller code.    // See class documentation of CActiveForm for details on this.    'enableAjaxValidation'=>false,    'htmlOptions' => array('enctype' => 'multipart/form-data'))); ?>        
  
   labelEx($model,'img'); ?>        
  
   $model->img)); ?>图片推荐大小为500x600        
  
   isNewRecord){ echo ''; }else{ ?>
img; ?>">
  
           
  
   error($model,'img'); ?>    

The problem is that I created the successful file, to edit in addition to the image of the other content, the picture is lost, he does not save the picture

This is a picture of my successful creation

I want to edit

I changed the title a bit.

And then save the results, and the problem comes up.

In the end where the problem, I just contact Yii, my yii version is 1.1.16, please fix it!!

No more than 1, but turn over the code, your problem is in the rules.

Array (' img ', ' file ', ' AllowEmpty ' =>true, ' types ' = ' bmp,jpg,png,gif '),

CFileValidatorIf the validated field does not pass, the field is set tonull

/**     * Raises an error to inform end user about blank attribute.     * Sets the owner attribute to null to prevent setting arbitrary values.     * @param CModel $object the object being validated     * @param string $attribute the attribute being validated     */    protected function emptyAttribute($object, $attribute)    {        if($this->safe)             $object->$attribute=null;        if(!$this->allowEmpty)        {            $message=$this->message!==null?$this->message : Yii::t('yii','{attribute} cannot be blank.');            $this->addError($object,$attribute,$message);        }    }

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