extending validation

[eluser]dimis[/eluser]
I extended validation library and I make a function

Code:

function unique_email($str, $field,$user)
    {
}

I call that

Code:

$rules['email'] = "required||valid_email|unique_email[users.user_email,$username]";

but there is the error

Code:

Missing argument 3 for MY_Validation::unique_email()

How can I call this function?

[eluser]JoostV[/eluser]
a validation callback function takes only one argument by default and returns true or false. So in your case:

Code:

function unique_email($str) {
    // Return true if $str validates
    // Retrun false if it doesn't
}

$str is the $_POST value for this field