Rules and validation in Yii Model

This tutorial will help you to understand the yii model rules, user defined functions. In yii rules function I added code (of yiiframework) for unique,email,password comparison, date, phone number, trim etc.. I created user functions for alphanumeric password validation, phone number or mobile number requirements validation.


<?php
class Mytable extends CActiveRecord{

public static function model($className=__CLASS__){
return parent::model($className);
}

public function rules()
{
return array(
array('status', 'numerical', 'integerOnly'=>true),
array('username, password, firstname, lastname, contactno', 'length', 'max'=>45),
array('gender, newsletter', 'length', 'max'=>1),

/** Username validation in yii model **/
array('username', 'match' ,'pattern'=>'/^[A-Za-z0-9_]+$/u',
'message'=> 'Username can contain only alphanumeric characters and hyphens(-).'),

/** Set scenario for model. Yii Scenario will help you to change dynamic validation using controller.
$model=Mytable::model()->findByPk($id); //(OR) $model = new Mytable();
$model->setScenario('updateuser'); // (OR) $model->scenario ='updateuser';
**/ 
array('username','unique','on'=>'updateuser'),


/** EMAIL VALIDATION **/
//Yii M odel Rules For Email
array('emailid', 'length', 'max'=>225),
array('emailid', 'email'),

/** PASSWORD VALIDATION **/
//Yii Model Rules For Password Confirm
array('password', 'compare', 'on'=>"confirmpassword", 'compareAttribute'=>'password'),

//Yii Model alphanumeric password validation
array('password','passwordalphanumeric','on'=>'changepassword'), 

/** DATE VALIDATION **/
//Yii Model Rules For Date Format
array('dob', 'type', 'type' =>'date', 
'message' => '{attribute}: is not a date!', 'dateFormat' => 'yyyy-MM-dd'),

/** SIMPLE PHONE NUMBER VALIDATION **/
//Yii Model Rules For Entering Mobile Or Phone Number
array('stdcode,phoneno,mobileno', 'numerical', 'integerOnly'=>true),

//Validation without STD CODE NUMBER
array('phoneno,mobileno','my_required'),
//(OR)
//Validation with STD CODE NUMBER
array('phoneno,mobileno,stdcode','my_required'),

/** TRIM DATA BEFORE SEND TO DATABASE **/
//Yii Model Rules For Trimming Data
array('username', 'filter', 'filter'=>'trim'),

/** UNIQUE VALIDATION **/
//Yii Model Rules For Unique data
array('username', 'unique'),
/** Yii Float Number VALIDATION **/
array('ratio', 'match', 'pattern'=>'/^[0-9]{1,3}(\.[0-9]{0,2})?$/'),

/** Value In Condition **/
array('status', 'in', 'range'=>array(1,2,3)),

);
}



// BeforeValidate function in yii rules
public function beforeValidate() {
       if (!$this->phoneno && !$this->mobileno) {
            $this->addError('mobileno', 'Enter Mobile Number Or Phone Number');
        }
        return parent::beforeValidate();
    }

// User defined function 
//Validation without STD CODE NUMBER
public function my_required($attribute_name,$params){
     if(empty($this->phoneno) && empty($this->mobileno)){
               $this->addError($attribute_name,
                 'Please enter Telephone number or Mobile number');
     }
}

//Validation with STD CODE NUMBER
public function my_required($attribute_name,$params){
     if(empty($this->phoneno) && empty($this->mobileno)){
             $this->addError('phoneno',
                 'Please enter Telephone number or Mobile number');
     }else if(!empty($this->phoneno) && $this->stdcode==''){
             $this->addError('stdcode','Please enter STD number');
     }
}

// Check password with alphanumeric validation
public function passwordalphanumeric($attribute_name,$params){
     if(!empty($this->password)){
          if (preg_match('~^[a-z0-9]*[0-9][a-z0-9]*$~i',$this->password)) {
                // $subject is alphanumeric and contains at least 1 number
     } else { // failed
          $this->addError($attribute_name,'Please enter password with digits');
     } 
}
}
}
?>