yii:how to remove error validate for update form - php

Question

in my site if email is registered in my database I would add a error
$this->addError('email' ,'This Email already registered');
but in Update form I do not want see this error
What is a simple way to solve my problem?
this is my users model:
<?php
/**
* This is the model class for table "users".
class Users extends CActiveRecord
{
// public $captcha;
/**
* #return string the associated database table name
*/
public function tableName()
{
return 'users';
}
/**
* #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('username, email,password', 'required'),
array('roles_id', 'numerical', 'integerOnly'=>true),
array('username, password',
'length',
'max'=>255,
'min'=>4
),
array('email', 'comp_email'),
array('username', 'comp_username'),
array('DataCreated, LastUpdated', 'safe'),
// The following rule is used by search().
// #todo Please remove those attributes that should not be searched.
array('id, username, password, DataCreated, LastUpdated, roles_id', 'safe', 'on'=>'search'),
);
}
/**
* #return array relational rules.
*/
/**
* #return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'ID',
'email'=>'Email',
'username' => 'Username',
'password' => 'Password',
'DataCreated' => 'Data Created',
'LastUpdated' => 'Last Updated',
'roles_id' => 'Roles',
);
}
public function search()
{
// #todo Please modify the following code to remove attributes that should not be searched.
$criteria=new CDbCriteria;
$criteria->compare('id',$this->id);
$criteria->compare('username',$this->username,true);
$criteria->compare('password',$this->password,true);
$criteria->compare('DataCreated',$this->DataCreated,true);
$criteria->compare('LastUpdated',$this->LastUpdated,true);
$criteria->compare('roles_id',$this->roles_id);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
/**
* Returns the static model of the specified AR class.
* Please note that you should have this exact method in all your CActiveRecord descendants!
* #param string $className active record class name.
* #return Users the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
public function comp_username($attributes , $params)
{
$username = Yii::app()->db->createCommand()
->select('username')
->from('users')
->queryAll();
$y = (count($username));
for ($x=0;$x<$y;$x++)
{
$usernameE[$x] = $username[$x]['username'];
}
foreach ($usernameE as $u)
{
if($this->username == $u)
{
$this->addError('username' ,'This Username already registered');
break;
}
}
}
public function comp_email($attributes , $params)
{
$email = Yii::app()->db->createCommand()
->select('email')
->from('users')
->queryAll();
$y = (count($email));
for ($x=0;$x<$y;$x++)
{
$emailE[$x] = $email[$x]['email'];
}
foreach ($emailE as $u)
{
if($this->email == $u)
{
$this->addError('email' ,'This Email already registered');
break;
}
}
}
public function getUsernameEmail($id)
{
$emailUsername = Yii::app()->db->createCommand()
->select('*')
->from('users')
->where('id=:id', array(':id'=>$id))
->queryAll();
return $emailUsername;
}
}
and this is my action Update in my controller:
public function actionUpdate($id)
{
$model=$this->loadModel($id);
// Uncomment the following line if AJAX validation is needed
$this->performAjaxValidation($model);
if(isset($_POST['Users']))
{
$model->attributes=$_POST['Users'];
$id=$model->id;
$useremail = Users::model()->getUsernameEmail($id);
$useremailX= $useremail[0]['username'];
$model->username=$useremailX;
$useremailX= $useremail[0]['email'];
$model->email=$useremailX;
$model->password= crypt($model->password,'salt');
if($model->save())
$this->redirect(array('view','id'=>$model->id));
}
$this->render('update',array(
'model'=>$model,
));
}

Answer 1

You can achieve this by applying specific scenarios to your rules.
The Yii WIKI topic on the subject is a good reference.
In your rules, you can specify which scenarios to apply the rule to.
array('email', 'unique','message'=>'Email already exists!', 'on'=>'insert')
Please note that Yii automatically injects specific scenarios, depending on how the object is created.
insert
update
search
You can specify your own custom scenario.
$model = Customer::model()->findByPK($customerID);
$model->scenario = 'purchase';

Answer 2

this is how to validate, you can set error message to be empty.
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
//First parameter is your field name of table which has email value
array('email', 'email','message'=>"The email isn't correct"),
array('email', 'unique','message'=>'Email already exists!'),
);
}
https://stackoverflow.com/a/12778419/1727357
or you can make your own validator:
public function uniqueEmail($attribute, $params)
{
// Set $emailExist variable true or false by using your custom query on checking in database table if email exist or not.
// You can user $this->{$attribute} to get attribute value.
$emailExist = true;
if($emailExist)
{
//do what your want
$this->addError('email','Email already exists');
}
}
User this validation method in rules:
array('email', 'uniqueEmail','message'=>'Email already exists!'),