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<?php
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/**
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* @file
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* Contains the entity_views_handler_field_entity class.
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*/
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/**
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* A handler to provide proper displays for entities retrieved via 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_entity extends views_handler_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 type of the entity displayed by this field.
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*/
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public $field_entity_type;
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/**
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* Stores the current value when rendering list fields.
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*/
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public $current_value;
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/**
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* Initialize the entity type with the field's entity type.
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*/
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public function init(&$view, &$options) {
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parent::init($view, $options);
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$this->field_entity_type = entity_property_extract_innermost_type($this->definition['type']);
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}
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/**
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* Overridden to add the field for the entity ID (if necessary).
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*/
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public function query() {
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EntityFieldHandlerHelper::query($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, $order);
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}
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/**
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* Load the entities for all rows that are about to be displayed.
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*/
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public function pre_render(&$values) {
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EntityFieldHandlerHelper::pre_render($this, $values);
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}
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/**
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* Overridden to use a metadata wrapper.
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*/
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public function get_value($values, $field = NULL) {
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return EntityFieldHandlerHelper::get_value($this, $values, $field);
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}
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public function option_definition() {
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$options = parent::option_definition();
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$options += EntityFieldHandlerHelper::option_definition($this);
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$options['display'] = array('default' => 'label');
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$options['link_to_entity']['default'] = TRUE;
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$options['view_mode'] = array('default' => 'default');
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$options['bypass_access'] = array('default' => FALSE);
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return $options;
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}
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public function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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EntityFieldHandlerHelper::options_form($this, $form, $form_state);
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// We want a different form field at a different place.
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unset($form['link_to_entity']);
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$options = array(
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'label' => t('Show entity label'),
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'id' => t('Show entity ID'),
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'view' => t('Show complete entity'),
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);
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$form['display'] = array(
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'#type' => 'select',
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'#title' => t('Display'),
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'#description' => t('Decide how this field will be displayed.'),
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'#options' => $options,
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'#default_value' => $this->options['display'],
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);
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$form['link_to_entity'] = array(
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'#type' => 'checkbox',
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'#title' => t('Link to entity'),
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'#description' => t('Link this field to the entity.'),
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'#default_value' => $this->options['link_to_entity'],
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'#dependency' => array('edit-options-display' => array('label', 'id')),
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);
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// Stolen from entity_views_plugin_row_entity_view.
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$entity_info = entity_get_info($this->field_entity_type);
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$options = array();
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if (!empty($entity_info['view modes'])) {
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foreach ($entity_info['view modes'] as $mode => $settings) {
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$options[$mode] = $settings['label'];
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}
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}
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if (count($options) > 1) {
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$form['view_mode'] = array(
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'#type' => 'select',
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'#options' => $options,
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'#title' => t('View mode'),
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'#default_value' => $this->options['view_mode'],
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'#dependency' => array('edit-options-display' => array('view')),
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);
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}
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else {
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$form['view_mode'] = array(
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'#type' => 'value',
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'#value' => $options ? key($options) : 'default',
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);
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}
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$form['bypass_access'] = array(
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'#type' => 'checkbox',
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'#title' => t('Bypass access checks'),
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'#description' => t('If enabled, access permissions for rendering the entity are not checked.'),
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'#default_value' => !empty($this->options['bypass_access']),
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);
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}
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public function render($values) {
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return EntityFieldHandlerHelper::render($this, $values);
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}
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/**
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* Render a value as a link to the entity if applicable.
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*
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* @param $value
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* The value to render.
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* @param $values
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* The values for the current row retrieved from the Views query, as an
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* object.
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*/
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public function render_entity_link($entity, $values) {
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$type = $this->field_entity_type;
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if (!is_object($entity) && isset($entity) && $entity !== FALSE) {
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$entity = entity_load_single($type, $entity);
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}
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if (!$entity) {
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return '';
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}
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$render = $this->render_single_value($entity, $values);
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if (!$this->options['link_to_entity'] || $this->options['display'] == 'view') {
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return $render;
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}
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if (is_object($entity) && ($url = entity_uri($type, $entity))) {
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return l($render, $url['path'], array('html' => TRUE) + $url['options']);
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}
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return $render;
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}
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/**
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* Render a single field value.
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*/
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public function render_single_value($entity, $values) {
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$type = $this->field_entity_type;
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if (!is_object($entity) && isset($entity) && $entity !== FALSE) {
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$entity = entity_load_single($type, $entity);
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}
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// Make sure the entity exists and access is either given or bypassed.
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if (!$entity || !(!empty($this->options['bypass_access']) || entity_access('view', $type, $entity))) {
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return '';
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}
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if ($this->options['display'] === 'view') {
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$entity_view = entity_view($type, array($entity), $this->options['view_mode']);
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return render($entity_view);
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}
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if ($this->options['display'] == 'label') {
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$value = entity_label($type, $entity);
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}
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// Either $options[display] == 'id', or we have no label.
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if (empty($value)) {
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$value = entity_id($type, $entity);
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}
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$value = $this->sanitize_value($value);
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return $value;
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}
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}
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