/**
* Checks that if both fields are present and value, time period meets spec.
*
* @param T_Form_Group $value collection to examine
* @return void
* @throws T_Exception_Filter if time period is not value
*/
protected function doTransform($value)
{
$start = $value->search($this->start);
$end = $value->search($this->end);
if (!$start || !$end) {
$msg = "does not contain {$this->start} or {$this->end}";
throw new InvalidArgumentException($msg);
}
// if either field already has errors, or if not present,
// no validation is required.
if (!$start->isValid() || !$start->isPresent() || !$end->isValid() || !$end->isPresent()) {
return;
}
$period = $end->getValue() - $start->getValue();
if ($period < 0) {
$msg = "{$end->getLabel()} must be after {$start->getLabel()}";
throw new T_Exception_Filter($msg);
}
if (!is_null($this->min) && $period < $this->min) {
$f = new T_Filter_HumanTimePeriod();
$msg = "The period between {$start->getLabel()} and {$end->getLabel()} must be at least " . _transform($this->min, $f);
}
if (!is_null($this->max) && $period > $this->max) {
$f = new T_Filter_HumanTimePeriod();
$msg = "The period between {$start->getLabel()} and {$end->getLabel()} may be a maximum of " . _transform($this->max, $f);
}
}
/**
* Checks that if the master is present, so too is the confirmation.
*
* @param T_Form_Group $value collection to examine
* @return void
* @throws T_Exception_Filter when data > max length
*/
protected function doTransform($value)
{
$master = $value->search($this->master);
$confirm = $value->search($this->confirm);
if (!$master || !$confirm) {
$msg = "does not contain {$this->master} or {$this->confirm}";
throw new InvalidArgumentException($msg);
}
// if either field already has errors, let these be corrected first ...
if (!$master->isValid() || !$confirm->isValid()) {
return;
}
// ... otherwise check the values are equal
if ($confirm->getValue() != $master->getValue()) {
$msg = 'does not match the value in ' . $master->getLabel();
$confirm->setError(new T_Form_Error($msg));
}
}
/**
* Checks that if both are present, end int is > start int.
*
* @param T_Form_Group $value collection to examine
* @return void
* @throws T_Exception_Filter when end date not correct
*/
protected function doTransform($value)
{
$start = $value->search($this->start);
$end = $value->search($this->end);
if ($start === false || false === $end) {
$msg = "does not contain {$this->start} and {$this->end}";
throw new InvalidArgumentException($msg);
}
if (!$start->isValid() || !$end->isValid()) {
return;
}
if ($start->isPresent() && $end->isPresent()) {
if ($start->getValue() > $end->getValue()) {
$msg = 'must be larger than ' . $start->getLabel();
$end->setError(new T_Form_Error($msg));
}
}
}
/**
* Create repeatable group.
*
* @param string $alias
* @param string $label
* @param int $min minimum number that must be submitted
* @param int $max maximum
*/
function __construct($alias, $label, $min, $max)
{
parent::__construct($alias, $label);
$this->min = (int) $min;
for ($i = 1; $i <= $max; $i++) {
$this->children[] = new T_Form_Group($alias . "_{$i}", $label);
}
if (count($this->children) == 0) {
throw new RuntimeException("maximum repetion {$max} must be greater than 0");
}
}
/**
* Checks that if any fields are present, all are present.
*
* @param T_Form_Group $value collection to process
* @return void
*/
protected function doTransform($value)
{
$fields = array();
$any_present = false;
foreach ($this->fields as $name) {
$f = $value->search($name);
if (!$f) {
$msg = "does not contain {$name} field";
throw new InvalidArgumentException($msg);
}
if (!$any_present) {
$any_present = $f->isPresent();
}
$fields[] = $f;
}
if ($any_present) {
foreach ($fields as $f) {
if ($f->isValid() && !$f->isPresent()) {
$f->setError(new T_Form_Error('is missing'));
}
}
}
}
/**
* Whether any elements in form are present (inc actions).
*
* @return bool whether any elements are present
*/
function isPresent()
{
foreach ($this->action as $button) {
if ($button->isPresent()) {
return true;
}
}
return parent::isPresent();
}
