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<?php
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/**
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* @file
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* Contains the entity_views_handler_field_field class.
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*/
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/**
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* A handler to provide proper displays for Field API fields.
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*
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* Overrides the default Views handler to retrieve the data from an entity via
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* data selection.
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*
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* This handler may only be used in conjunction with data selection based Views
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* tables or other base tables using a query plugin that supports data
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* selection.
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*
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* @see entity_views_field_definition()
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* @ingroup views_field_handlers
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*/
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class entity_views_handler_field_field extends views_handler_field_field {
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/**
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* Stores the entity type of the result entities.
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*/
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public $entity_type;
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/**
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* Stores the result entities' metadata wrappers.
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*/
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public $wrappers = array();
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/**
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* The entity for which this field is currently rendered.
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*/
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public $entity;
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/**
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* Return TRUE if the user has access to view this field.
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*/
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public function access() {
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return field_access('view', $this->field_info, $this->definition['entity type']);
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}
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/**
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* Overridden to add the field for the entity ID (if necessary).
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*/
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public function query($use_groupby = FALSE) {
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EntityFieldHandlerHelper::query($this);
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}
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/**
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* Adds a click-sort to the query.
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*/
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public function click_sort($order) {
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EntityFieldHandlerHelper::click_sort($this, $order);
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}
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/**
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* Override so it doesn't do any harm (or, anything at all).
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*/
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public function post_execute(&$values) { }
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/**
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* Load the entities for all rows that are about to be displayed.
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*/
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public function pre_render(&$values) {
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parent::pre_render($values);
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EntityFieldHandlerHelper::pre_render($this, $values, TRUE);
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}
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/**
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* Overridden to get the items our way.
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*/
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public function get_items($values) {
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$items = array();
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// Set the entity type for the parent handler.
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$values->_field_data[$this->field_alias]['entity_type'] = $this->entity_type;
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// We need special handling for lists of entities as the base.
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$entities = EntityFieldHandlerHelper::get_value($this, $values, 'entity object');
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if (!is_array($entities)) {
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$entities = $entities ? array($entities) : array();
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}
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foreach ($entities as $entity) {
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// Only try to render the field if it is even present on this bundle.
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// Otherwise, field_view_field() will trigger a fatal.
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list (, , $bundle) = entity_extract_ids($this->entity_type, $entity);
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if (field_info_instance($this->entity_type, $this->definition['field_name'], $bundle)) {
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// Set the currently rendered entity.
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$values->_field_data[$this->field_alias]['entity'] = $entity;
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$items = array_merge($items, $this->set_items($values, $this->view->row_index));
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}
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}
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return $items;
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}
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/**
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* Overridden to force displaying multiple values in a single row.
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*/
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function multiple_options_form(&$form, &$form_state) {
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parent::multiple_options_form($form, $form_state);
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$form['group_rows']['#default_value'] = TRUE;
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$form['group_rows']['#disabled'] = TRUE;
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}
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}
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