silverstripe-framework/forms/CustomRequiredFields.php

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<?php
/**
* This class allows you to specify special required fields to be executed as
* part of form validation
*/
class CustomRequiredFields extends RequiredFields{
protected $required;
/**
* Pass each field to be validated as a seperate argument
* __construct()'s arguments needs to be an array
* @mpeel Unfortunately the line 'function __construct(array $required)' breaks older versions of PHP 5, so remove the forcing of array
*/
function __construct($required) {
$this->required = $required;
}
/**
* Creates the client side validation from form fields
* which is generated at the header of each page
*/
function javascript() {
$fields = $this->form->Fields();
foreach($fields as $field){
//if the field type has some special specific specification for validation of itself
$valid = $field->jsValidation();
if($valid){
$code .= $valid;
}
}
if(is_array($this->required)){
foreach($this->required as $field) {
if($fields->dataFieldByName($field)) {
if(is_array($field) && $field['js']){
$code .= $field['js'] . "\n";
}else{
$code .= " require('$field');\n";
//Tabs for output tabbing :-)
}
}
}
}else{
USER_ERROR("CustomRequiredFields::requiredfields is not set / not an array",E_USER_WARNING);
}
return $code;
}
/**
* Creates the server side validation from form fields
* which is executed on form submission
*/
function php($data) {
$fields = $this->form->Fields();
$valid = true;
foreach($fields as $field) {
$valid = ($field->validate($this) && $valid);
}
if($this->required){
foreach($this->required as $key => $field) {
if($fields->dataFieldByName($field)) {
if(is_array($field) && $field['php']){
eval($field['php']);
}else{
// if an error is found, the form is returned.
if(!$data[$field]) {
$this->validationError($field,"$field is required","required");
return false;
}
}
}
}
}
return $valid;
}
/**
* allows you too add more required fields to this object after construction.
*/
function appendRequiredFields($requiredFields){
$this->required = array_merge($this->required,$requiredFields->getRequired());
}
}
?>