silverstripe-userforms/code/forms/UserForm.php

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<?php
/**
* @package userforms
*/
class UserForm extends Form {
/**
* @param Controller $controller
* @param string $name
*/
public function __construct(Controller $controller, $name = 'Form') {
$this->controller = $controller;
$this->setRedirectToFormOnValidationError(true);
parent::__construct(
$controller,
$name,
$this->getFormFields(),
$this->getFormActions(),
$this->getRequiredFields()
);
// Number each page
$stepNumber = 1;
foreach($this->getSteps() as $step) {
$step->setStepNumber($stepNumber++);
}
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if($controller->DisableCsrfSecurityToken) {
$this->disableSecurityToken();
}
$data = Session::get("FormInfo.{$this->FormName()}.data");
if(is_array($data)) {
$this->loadDataFrom($data);
}
$this->extend('updateForm');
}
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/**
* Used for partial caching in the template.
*
* @return string
*/
public function getLastEdited() {
return $this->controller->LastEdited;
}
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/**
* @return bool
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*/
public function getDisplayErrorMessagesAtTop() {
return (bool)$this->controller->DisplayErrorMessagesAtTop;
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}
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/**
* Return the fieldlist, filtered to only contain steps
*
* @return ArrayList
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*/
public function getSteps() {
return $this->Fields()->filterByCallback(function($field) {
return $field instanceof UserFormsStepField;
});
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}
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/**
* Get the form fields for the form on this page. Can modify this FieldSet
* by using {@link updateFormFields()} on an {@link Extension} subclass which
* is applied to this controller.
*
* This will be a list of top level composite steps
*
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* @return FieldList
*/
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public function getFormFields() {
$fields = new UserFormsFieldList();
$target = $fields;
foreach ($this->controller->Fields() as $field) {
$target = $target->processNext($field);
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}
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$fields->clearEmptySteps();
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$this->extend('updateFormFields', $fields);
return $fields;
}
/**
* Generate the form actions for the UserDefinedForm. You
* can manipulate these by using {@link updateFormActions()} on
* a decorator.
*
* @todo Make form actions editable via their own field editor.
*
* @return FieldList
*/
public function getFormActions() {
$submitText = ($this->controller->SubmitButtonText) ? $this->controller->SubmitButtonText : _t('UserDefinedForm.SUBMITBUTTON', 'Submit');
$clearText = ($this->controller->ClearButtonText) ? $this->controller->ClearButtonText : _t('UserDefinedForm.CLEARBUTTON', 'Clear');
$actions = new FieldList(
new FormAction("process", $submitText)
);
if($this->controller->ShowClearButton) {
$actions->push(new ResetFormAction("clearForm", $clearText));
}
$this->extend('updateFormActions', $actions);
return $actions;
}
/**
* Get the required form fields for this form.
*
* @return RequiredFields
*/
public function getRequiredFields() {
// Generate required field validator
$requiredNames = $this
->controller
->Fields()
->filter('Required', true)
->column('Name');
$required = new RequiredFields($requiredNames);
$this->extend('updateRequiredFields', $required);
return $required;
}
/**
* Override validation so conditional fields can be validated correctly.
*
* @return boolean
*/
public function validate() {
$data = $this->getData();
Session::set("FormInfo.{$this->FormName()}.data", $data);
Session::clear("FormInfo.{$this->FormName()}.errors");
foreach ($this->controller->Fields() as $key => $field) {
$field->validateField($data, $this);
}
if(Session::get("FormInfo.{$this->FormName()}.errors")) {
return false;
}
return true;
}
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/**
* Override some we can add UserForm specific attributes to the form.
*
* @return array
*/
public function getAttributes() {
$attrs = parent::getAttributes();
$attrs['class'] = $attrs['class'] . ' userform';
$attrs['data-livevalidation'] = (bool)$this->controller->EnableLiveValidation;
$attrs['data-toperrors'] = (bool)$this->controller->DisplayErrorMessagesAtTop;
$attrs['data-hidefieldlabels'] = (bool)$this->controller->HideFieldLabels;
return $attrs;
}
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}