public function grab(array &$param_pool = NULL)
{
// remove placeholder elements
unset($this->dsParamINCLUDEDELEMENTS);
// fill with all included elements if none are set
if (is_null(REST_Entries::getDatasourceParam('included_elements'))) {
// get all fields in this section
$fields = FieldManager::fetchFieldsSchema(REST_Entries::getSectionId());
// add them to the data source
foreach ($fields as $field) {
$this->dsParamINCLUDEDELEMENTS[] = $field['element_name'];
}
// also add pagination
$this->dsParamINCLUDEDELEMENTS[] = 'system:pagination';
} else {
$this->dsParamINCLUDEDELEMENTS = explode(',', REST_Entries::getDatasourceParam('included_elements'));
}
// fill the other parameters
if (!is_null(REST_Entries::getDatasourceParam('limit'))) {
$this->dsParamLIMIT = REST_Entries::getDatasourceParam('limit');
}
if (!is_null(REST_Entries::getDatasourceParam('page'))) {
$this->dsParamSTARTPAGE = REST_Entries::getDatasourceParam('page');
}
if (!is_null(REST_Entries::getDatasourceParam('sort'))) {
$this->dsParamSORT = REST_Entries::getDatasourceParam('sort');
}
if (!is_null(REST_Entries::getDatasourceParam('order'))) {
$this->dsParamORDER = REST_Entries::getDatasourceParam('order');
}
// Do grouping
if (!is_null(REST_Entries::getDatasourceParam('groupby'))) {
$field_id = FieldManager::fetchFieldIDFromElementName(REST_Entries::getDatasourceParam('groupby'), REST_Entries::getSectionId());
if ($field_id) {
$this->dsParamGROUP = $field_id;
}
}
// if API is calling a known entry, filter on System ID only
if (!is_null(REST_Entries::getEntryId())) {
$this->dsParamFILTERS['id'] = REST_Entries::getEntryId();
} elseif (REST_Entries::getDatasourceParam('filters')) {
foreach (REST_Entries::getDatasourceParam('filters') as $field_handle => $filter_value) {
$filter_value = rawurldecode($filter_value);
$field_id = FieldManager::fetchFieldIDFromElementName($field_handle, REST_Entries::getSectionId());
if (is_numeric($field_id)) {
$this->dsParamFILTERS[$field_id] = $filter_value;
}
}
}
return $this->execute($param_pool);
}
public static function getSource()
{
return REST_Entries::getSectionId();
}
