/**
* Returns all elements in system as list
*
* @param $pb_root_elements_only boolean If true, then only root elements are returned; default is false
* @param $pm_table_name_or_num mixed Optional table name or number to filter list with. If specified then only elements that have a type restriction to the table are returned. If omitted (default) then all elements, regardless of type restrictions, are returned.
* @param $pm_type_name_or_id mixed Optional type code or type_id to restrict elements to. If specified then only elements that have a type restriction to the specified table and type are returned.
* @param $pb_use_cache boolean Optional control for list cache; if true [default] then the will be cached for the request; if false the list will be generated from the database. The list is always generated at least once in the current request - there is no inter-request caching
* @param $pa_data_types array Optional list of element data types to filter on.
*
* @return array A List of elements. Each list item is an array with keys set to field names; there is one additional value added with key "display_label" set to the display label of the element in the current locale
*/
public static function getElementsAsList($pb_root_elements_only = false, $pm_table_name_or_num = null, $pm_type_name_or_id = null, $pb_use_cache = true, $pb_return_stats = false, $pb_index_by_element_code = false, $pa_data_types = null)
{
$o_dm = Datamodel::load();
$vn_table_num = $o_dm->getTableNum($pm_table_name_or_num);
$vs_cache_key = md5($pm_table_name_or_num . '/' . $pm_type_name_or_id . '/' . ($pb_root_elements_only ? '1' : '0') . '/' . ($pb_index_by_element_code ? '1' : '0') . print_R($pa_data_types, true));
if ($pb_use_cache && ca_metadata_elements::$s_element_list_cache[$vs_cache_key]) {
if ($pb_return_stats && isset(ca_metadata_elements::$s_element_list_cache[$vs_cache_key]['ui_counts']) || !$pb_return_stats) {
return ca_metadata_elements::$s_element_list_cache[$vs_cache_key];
}
}
if ($pb_return_stats) {
$va_counts_by_attribute = ca_metadata_elements::getUIUsageCounts();
$va_restrictions_by_attribute = ca_metadata_elements::getTypeRestrictionsAsList();
}
$vo_db = new Db();
$va_wheres = array();
$va_where_params = array();
if ($pb_root_elements_only) {
$va_wheres[] = 'cme.parent_id is NULL';
}
if ($vn_table_num) {
$va_wheres[] = 'cmtr.table_num = ?';
$va_where_params[] = (int) $vn_table_num;
if ($pm_type_name_or_id) {
$t_list_item = new ca_list_items();
if (!is_numeric($pm_type_name_or_id)) {
$t_list_item->load(array('idno' => $pm_type_name_or_id));
} else {
$t_list_item->load((int) $pm_type_name_or_id);
}
$va_type_ids = array();
if ($vn_type_id = $t_list_item->getPrimaryKey()) {
$va_type_ids[$vn_type_id] = true;
if ($qr_children = $t_list_item->getHierarchy($vn_type_id, array())) {
while ($qr_children->nextRow()) {
$va_type_ids[$qr_children->get('item_id')] = true;
}
}
$va_wheres[] = '((cmtr.type_id = ?) OR (cmtr.include_subtypes = 1 AND cmtr.type_id IN (?)))';
$va_where_params[] = (int) $vn_type_id;
$va_where_params[] = $va_type_ids;
}
}
$vs_wheres = ' WHERE ' . join(' AND ', $va_wheres);
$qr_tmp = $vo_db->query("\n\t\t\t\tSELECT cme.*\n\t\t\t\tFROM ca_metadata_elements cme\n\t\t\t\tINNER JOIN ca_metadata_type_restrictions AS cmtr ON cme.hier_element_id = cmtr.element_id\n\t\t\t\t{$vs_wheres}\n\t\t\t", $va_where_params);
} else {
if (sizeof($va_wheres)) {
$vs_wheres = ' WHERE ' . join(' AND ', $va_wheres);
} else {
$vs_wheres = '';
}
$qr_tmp = $vo_db->query("\n\t\t\t\tSELECT * \n\t\t\t\tFROM ca_metadata_elements cme\n\t\t\t\t{$vs_wheres}\n\t\t\t");
}
$va_return = array();
$t_element = new ca_metadata_elements();
$va_element_ids = array();
while ($qr_tmp->nextRow()) {
$vn_element_id = $qr_tmp->get('element_id');
$vs_element_code = $qr_tmp->get('element_code');
$vs_datatype = $qr_tmp->get('datatype');
if (is_array($pa_data_types) && !in_array($vs_datatype, $pa_data_types)) {
continue;
}
foreach ($t_element->getFields() as $vs_field) {
$va_record[$vs_field] = $qr_tmp->get($vs_field);
}
$va_record['settings'] = caUnserializeForDatabase($qr_tmp->get('settings'));
if ($pb_return_stats) {
$va_record['ui_counts'] = $va_counts_by_attribute[$vs_code = $qr_tmp->get('element_code')];
$va_record['restrictions'] = $va_restrictions_by_attribute[$vs_code];
}
$va_return[$vn_element_id] = $va_record;
}
// Get labels
$va_labels = $t_element->getPreferredDisplayLabelsForIDs(array_keys($va_return));
foreach ($va_labels as $vn_id => $vs_label) {
$va_return[$vn_id]['display_label'] = $vs_label;
}
if ($pb_index_by_element_code) {
$va_return_proc = array();
foreach ($va_return as $vn_id => $va_element) {
$va_return_proc[$va_element['element_code']] = $va_element;
}
$va_return = $va_return_proc;
}
return ca_metadata_elements::$s_element_list_cache[$vs_cache_key] = sizeof($va_return) > 0 ? $va_return : false;
}
