CakePHP validation errors

Question

I'm trying to validate an input with CakePHP 2.3.8. When the input passes the validation it works fine. However, when it doesn't meet the validation requirements I get the following error

Warning (2): vsprintf(): Too few arguments [CORE/Cake/basics.php, line 619]

This displays at the top. Around the input where the message should be displayed, it's just a blank red outline, like the message wasn't passed.

Here's my validation

'sales_tax' => array(
        'valid' => array(
            'rule' => array('confirm_percentage'),
            'message' => 'Sales tax must be a percentage (Ex: 4.005%)'
        )
),

I also tried this without the 'valid' array and the error still persists. And the function

function confirm_percentage($value){
    if(preg_match('/^[0-9]/', $value['sales_tax'])){ //just checking if input starts with number for testing purposes
        return true; //no error
    }
}

ndm · Accepted Answer · 2013-12-27 00:25:30Z

3

Ultimately your validation rule message is being passed to vsprintf() (in __d()), and so it must be formatted to be sprintf compatible.

The problem is that you are passing an %, which is the conversion specifier identificator, and so vsprintf() expects you to pass additional arguments appropriately.

Long story short, escape the % with another %:

'message' => 'Sales tax must be a percentage (Ex: 4.005%%)'

answered Dec 27, 2013 at 0:25

ndm

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