/**
* Get ACF fields for options in a specific post
*
* @param int $post_id Post ID
* @return array ACF fields
*/
private function get_fields($post_id)
{
$post_id = intval($post_id);
$post_type = get_post_type($post_id);
$fields = array();
// get ACF field groups for this option and post type
$field_groups = Layotter_ACF::get_filtered_field_groups(array('post_type' => $post_type, 'layotter' => $this->type . '_options'));
foreach ($field_groups as $field_group) {
$fields = array_merge($fields, Layotter_ACF::get_fields($field_group));
}
return $fields;
}
/**
* Get ACF fields for this element
*
* @return array ACF fields
* @throws Exception If $this->field_group wasn't assigned correctly in $this->attributes()
*/
protected final function get_fields()
{
// ACF field group can be provided as post id (int) or slug ('group_xyz')
if (!is_int($this->field_group) and !is_string($this->field_group)) {
throw new Exception('$this->field_group must be assigned in attributes() (error in class ' . get_called_class() . ')');
}
if (is_int($this->field_group)) {
$field_group = Layotter_ACF::get_field_group_by_id($this->field_group);
$identifier = 'post_id';
} else {
$field_group = Layotter_ACF::get_field_group_by_key($this->field_group);
$identifier = 'acf-field-group';
}
// check if the field group exists
if (!$field_group) {
throw new Exception('No ACF field group found for ' . $identifier . '=' . $this->field_group . ' (error in class ' . get_called_class() . ')');
}
// return fields for the provided ACF field group
return Layotter_ACF::get_fields($field_group);
}