/**
* Pre-filter actions any submission, or prepares the form.
*
* @param T_Response $response encapsulated response to filter
*/
protected function doPreFilter(T_Response $response)
{
$t_field = $this->form->getAlias() . '_timeout';
$l_field = $this->form->getAlias() . '_thread_lock';
$s_field = $this->form->getAlias() . '_salt';
// prepare form:
// (a) add thread lock if required
// (b) add timeout
$timeout = new T_Form_Hidden($t_field, $this->timeout + time());
$this->form->addChild($timeout);
if ($this->lock_to) {
$lock_to = new T_Form_Hidden($l_field, $this->lock_to);
$this->form->addChild($lock_to);
}
// process form if is POST:
if ($this->env->isMethod('POST')) {
try {
// create salt field and validate to get salt
$salt = new T_Form_Hidden($s_field, null);
if ($salt->isSubmitted($this->env->input('POST'))) {
$salt->validate($this->env->input('POST'));
}
// salt form and validate
if ($salt->isPresent() && $salt->isValid()) {
$salt = $salt->getValue();
$this->form->setFieldnameSalt($salt, $this->hash);
if ($this->form->isSubmitted($this->env->input('POST'))) {
$this->form->validate($this->env->input('POST'));
}
}
// check timeout and thread lock
if ($this->form->isPresent() && $this->form->isValid()) {
// check timeout
$timeout = $this->form->search($t_field)->getValue();
if ($timeout < time()) {
$msg = 'This form has expired. Please submit the form ' . 'again to complete your request.';
throw new T_Exception_Filter($msg);
}
// check lock thread
if ($this->lock_to) {
$lock_to = $this->form->search($l_field)->getValue();
if (strcmp($lock_to, $this->lock_to) !== 0) {
$msg = 'A technical error occurred at our end, sorry. ' . 'Please submit the form again.';
throw new T_Exception_Filter($msg);
}
}
}
} catch (T_Exception_Filter $e) {
$this->form->setError(new T_Form_Error($e->getMessage()));
}
}
// ready form for redisplay (remember an error may be added in the POST
// method so make even a valid form ready for display).
// (a) Set form forward as same page
// (b) Salt form and add salt hidden input
// (c) Reset timeout from now
$this->form->setForward($this->env->getRequestUrl()->setParameters($this->env->input('GET')->uncage()));
$salt = uniqid(rand(), true);
$this->form->setFieldnameSalt($salt, $this->hash);
$this->form->addChild(new T_Form_Hidden($s_field, $salt));
// note that the salt hidden input is added *after* the form is
// salted as this input needs to be plain.
$this->form->search($t_field)->setValue($this->timeout + time());
}
$form->addChild($fieldset);
$repeated = new T_Form_Repeated('jobs', 'Add Another Job', 1, 6);
$repeated->addChild(new T_Form_Text('title', 'Title'));
$repeated->addChild(new T_Form_Text('company', 'Company'));
$start = new T_Form_Text('start', 'Start Date');
$start->setHelp('Enter date in format dd/mm/yyyy');
$start->setOptional()->attachFilter(new T_Validate_UnixDate('d|m|y'));
$repeated->addChild($start);
$fieldset->addChild($repeated);
$skills = new T_Form_TextArea('skills', 'Additional Info');
$skills->setOptional()->setHelp('Describe any additional career achievements, etc.');
$fieldset->addChild($skills);
$form->setForward($env->getRequestUrl());
// VALIDATE FORM
if ($env->isMethod('POST')) {
$form->validate($env->input('POST'));
}
// ACTION FORM
if ($form->isPresent() && $form->isValid()) {
$f = new T_Filter_Xhtml();
// action (e.g. email, etc.)
echo '<h2>CV for <a href="mailto:', $form->search('email')->getValue($f), '">', $form->search('name')->getValue($f), '</a></h2>';
foreach ($form->search('jobs') as $job) {
$date = $job->search('start');
if ($date->isPresent()) {
$date = ' (from ' . date('d-m-Y', $date->getValue()) . ')';
} else {
$date = null;
}
echo '<p>', $job->search('title')->getValue($f), ', ', $job->search('company')->getValue($f), $date, '</p>';
}
/**
* Validates the form.
*
* @param T_Cage_Array $source source data
* @return T_Form_Group fluent interface
*/
function validate(T_Cage_Array $source)
{
// validate normal portion of form
parent::validate($source);
// validate basic form
if (count($this->steps) == 0) {
return $this;
}
// populate and validate previous history
$history = $this->search('history');
if ($history && $history->isPresent() && $history->isValid()) {
$cage = new T_Cage_Array($history->getValue());
} else {
$cage = new T_Cage_Array(array());
}
foreach ($this->steps as $c) {
$c->validate($cage);
// always validate... as this is required
// to make sure optional steps are accounted
// for OK in the validation.
}
// work out where we are now, and validate this step submission
$seek = $this->search('seek');
if ($seek && ($seek = $seek->getValue())) {
reset($this->steps);
do {
if (strcmp(key($this->steps), $seek) === 0) {
break;
}
} while (next($this->steps));
if (!current($this->steps)) {
reset($this->steps);
}
// not found
}
$cur = current($this->steps);
$cur->validate($source);
// if we're going backwards, the form submission has to be valid, but
// the current step doesn't (as we'll come back to it!)
if (parent::isValid() && $this->isAction('prev')) {
if (false === prev($this->steps)) {
reset($this->steps);
}
// ^ reset if no prev
}
if (parent::isValid() && $cur->isValid() && $this->isAction('forward')) {
if (false === next($this->steps)) {
reset($this->steps);
do {
$cur = current($this->steps);
if ($cur && !$cur->isValid()) {
// problem at this step, break here and display. We
// can
break;
}
} while (next($this->steps));
if (!current($this->steps)) {
reset($this->steps);
$this->is_complete = true;
}
// ^ reset if got to end unless there is an element that
// is not present/or is invalid.
} else {
// we've moved forward using a standard forward step to a new
// area. We need to clear errors on this step from previous
// cross-form navigation, and the user is about to re-complete
// it.
current($this->steps)->clearError();
}
}
$this->init();
// ^ prepare form in possible new position, with possible new form
// data (whether it is present/not valid/etc.)
return $this;
}
