SetPassword only if strlen() > 0 - Symfony 1.4 - php

Question

I have simple clasS:
User:
id | login | password | desc
and form with this.
How can i make - if input password is null(strlen == 0) then in model doesn`t matter.
Now i have in User.class.php in function save:
$this->setPassword(sha512($this->getPassword));

Answer 1

You have to ensure not to have a "NOT NULL" on DB level, so empty values are ignored normally by ORM.
There are 2 possibilties to change a given password by a custom function, so i'll give you some simple examples.
1) In your model file (i guess you have doctrine or propel ?!) :
/**
* via object's event handler
*/
preSave(){
if(strlen($this->getPassword()) > 0){
$this->setPassword(sha512($this->getPassword()));
}
}
2) Or even as a form validator :
/**
* custom validator
*/
class myValidatorOldPassword extends sfValidatorBase{
/**
* Clean and validate user input
*
* #param mixed $value Value of form input
* #return mixed Value
*/
protected function doClean($value)
{
// trim is not needed
$clean = (string) $value;
// password is ok?
if (strlen($clean) > 0)
{
return sha512($clean);
}
// Throw error - if you want
// throw new sfValidatorError($this, 'invalid', array('value' => $value));
// or return empty value
return $clean;
}
}
Of course this code may be improved, as it's only hint for you.