/**
* Generates a FormView element for this field, copying all the
* data over to the view in a view-friendly format
* @return \snb\form\FormView
*/
public function getView()
{
// Create the view
$view = new FormView();
// Copy over any properties into the view
foreach ($this->properties as $name => $value) {
$view->set($name, $value);
}
// Custom values that are generated or outside the standard properties
$view->set('id', $this->getId());
$view->set('type', $this->getType());
$view->set('full_name', $this->getFullName());
$view->set('errors', $this->errors);
return $view;
}
/**
* Calls one of the blocks in the template. It tries using a block
* called <type>_<action>, and if that does not exist, falls back to field_<action>
* @param string $action
* @param \snb\form\FormView $data
* @return string
*/
public function render($action, $data)
{
// make sure we got something
if ($data == null) {
return '';
}
// In fact, it must be a FormView...
if (!$data instanceof FormView) {
return '';
}
// Get to work, finding a suitable block to render the Form view with
$blocks = $this->template->getBlocks();
$type = $data->get('type', 'field');
$typeAction = $type . '_' . $action;
if (!array_key_exists($typeAction, $blocks)) {
$typeAction = 'field_' . $action;
}
ob_start();
$this->template->displayBlock($typeAction, $data->all(), $blocks);
$html = ob_get_clean();
return $html;
}
/**
* Build the view, which may consist of child elements
* @return \snb\form\FormView
*/
public function getView()
{
// Build the view
$view = parent::getView();
// If this set of choices is meant to be expanded,
// then generate the child controls.
$multiselect = $this->get('multiselect', false);
if ($this->get('expanded', false)) {
// yes, this is an expanded control
$choices = $this->get('choices', array());
// Get the value - make sure it is an array, as that simplifies the code below
$value = $this->get('value');
if (!is_array($value)) {
$value = array($value);
}
$checkedItemCount = 0;
$firstChild = null;
foreach ($choices as $key => $title) {
// make a checkbox for each item please.
$child = new FormView();
if ($firstChild == null) {
$firstChild = $child;
}
// We only copy over / set up a limited set of properties
// eg. if we copied "hint", every expanded item would have
// the same hint next to it
$child->set('id', $this->getId() . '-' . $key);
$child->set('label', $title);
$child->set('value', $key);
$child->set('name', $key);
// Decide if we want checkboxes or radio buttons
if ($multiselect) {
$child->set('type', 'checkbox');
$child->set('full_name', $this->getFullName() . '[' . $key . ']');
} else {
$child->set('type', 'radio');
$child->set('full_name', $this->getFullName());
}
// handle attributes
$attr = $this->get('attributes', array());
if ($this->get('readonly')) {
$attr['disabled'] = 'disabled';
}
// See if this item is checked or not
if (in_array($key, $value)) {
$attr['checked'] = 'checked';
$checkedItemCount++;
}
// Set any attributes on the control that we have been adjusting
$child->set('attributes', $attr);
// add it
$view->addChild($child);
}
// If we created radio buttons, and none of them were checked,
// then check the first one
if (!$multiselect && $checkedItemCount == 0 && $firstChild != null) {
$attr = $firstChild->get('attributes', array());
$attr['checked'] = 'checked';
$firstChild->set('attributes', $attr);
}
}
return $view;
}
