<?php /** * CreditCard field, contains validation and formspec for creditcard fields. */ class CreditCardField extends TextField { function Field() { $parts = explode("\n", chunk_split($this->value,4,"\n")); $parts = array_pad($parts, 4, ""); $field = "<span id=\"{$this->name}_Holder\" class=\"creditCardField\">" . "<input autocomplete=\"off\" name=\"{$this->name}[0]\" value=\"$parts[0]\" maxlength=\"4\" /> - " . "<input autocomplete=\"off\" name=\"{$this->name}[1]\" value=\"$parts[1]\" maxlength=\"4\" /> - " . "<input autocomplete=\"off\" name=\"{$this->name}[2]\" value=\"$parts[2]\" maxlength=\"4\" /> - " . "<input autocomplete=\"off\" name=\"{$this->name}[3]\" value=\"$parts[3]\" maxlength=\"4\" /></span>"; return $field; } function dataValue() { if(is_array($this->value)) return implode("", $this->value); else return $this->value; } function jsValidation() { $formID = $this->form->FormName(); $jsFunc =<<<JS Behaviour.register({ "#$formID": { validateCreditCard: function(fieldName) { if(!$(fieldName + "_Holder")) return true; // Creditcards are split into multiple values, so get the inputs from the form. var cardParts = $(fieldName + "_Holder").getElementsByTagName('input'); var cardisnull = true; var i=0; for(i=0; i < cardParts.length ; i++ ){ if(cardParts[i].value == null || cardParts[i].value == "") cardisnull = cardisnull && true; else cardisnull = false; } if(!cardisnull){ // Concatenate the string values from the parts of the input. for(i=0; i < cardParts.length ; i++ ){ // The creditcard number cannot be null, nor have less than 4 digits. if( cardParts[i].value == null || cardParts[i].value == "" || cardParts[i].value.length < 3 || !cardParts[i].value.match(/[0-9]{4}/) ){ switch(i){ case 0: number = "first"; break; case 1: number = "second"; break; case 2: number = "third"; break; case 3: number = "fourth"; break; } validationError(cardParts[i],"Please ensure you have entered the " + number + " credit card number correctly.","validation",false); return false; } } } return true; } } }); JS; Requirements :: customScript($jsFunc, 'func_validateCreditCard'); return "\$('$formID').validateCreditCard('$this->name');"; } function validate($validator){ $i=0; if($this->value) foreach($this->value as $part){ if(!$part || !(strlen($part) == 4) || !ereg("([0-9]{4})",$part)){ switch($i){ case 0: $number = "first"; break; case 1: $number = "second"; break; case 2: $number = "third"; break; case 3: $number = "fourth"; break; } $validator->validationError($this->name,"Please ensure you have entered the " . $number . " credit card number correctly.","validation",false); return false; } $i++; } } }