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<?php
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/**
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* @file
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* Views integration for Entity Reference.
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*/
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/**
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* Implements hook_field_views_data().
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*/
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function entityreference_field_views_data($field) {
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$data = field_views_field_default_views_data($field);
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$entity_info = entity_get_info($field['settings']['target_type']);
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foreach ($data as $table_name => $table_data) {
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if (isset($entity_info['base table'])) {
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$entity = $entity_info['label'];
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if ($entity == t('Node')) {
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$entity = t('Content');
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}
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$field_name = $field['field_name'] . '_target_id';
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$parameters = array('@entity' => $entity, '!field_name' => $field['field_name']);
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$data[$table_name][$field_name]['relationship'] = array(
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'handler' => 'views_handler_relationship',
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'base' => $entity_info['base table'],
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'base field' => $entity_info['entity keys']['id'],
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'label' => t('@entity entity referenced from !field_name', $parameters),
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'group' => t('Entity Reference'),
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'title' => t('Referenced Entity'),
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'help' => t('A bridge to the @entity entity that is referenced via !field_name', $parameters),
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);
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}
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}
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// Invoke the behaviors to allow them to change the properties.
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foreach (entityreference_get_behavior_handlers($field) as $handler) {
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$handler->views_data_alter($data, $field);
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}
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return $data;
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}
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/**
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* Options callback for Views handler views_handler_filter_in_operator.
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*/
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function entityreference_views_handler_options_list($field_name) {
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$field = field_info_field($field_name);
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return entityreference_options_list($field);
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}
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/**
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* Implements hook_field_views_data_views_data_alter().
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*
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* Views integration to provide reverse relationships on entityreference fields.
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*/
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function entityreference_field_views_data_views_data_alter(&$data, $field) {
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foreach ($field['bundles'] as $entity_type => $bundles) {
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$target_entity_info = entity_get_info($field['settings']['target_type']);
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if (isset($target_entity_info['base table'])) {
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$entity_info = entity_get_info($entity_type);
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$entity = $entity_info['label'];
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if ($entity == t('Node')) {
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$entity = t('Content');
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}
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$target_entity = $target_entity_info['label'];
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if ($target_entity == t('Node')) {
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$target_entity = t('Content');
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}
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$pseudo_field_name = 'reverse_' . $field['field_name'] . '_' . $entity_type;
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$replacements = array('@entity' => $entity, '@target_entity' => $target_entity, '!field_name' => $field['field_name']);
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$data[$target_entity_info['base table']][$pseudo_field_name]['relationship'] = array(
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'handler' => 'views_handler_relationship_entity_reverse',
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'field_name' => $field['field_name'],
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'field table' => _field_sql_storage_tablename($field),
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'field field' => $field['field_name'] . '_target_id',
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'base' => $entity_info['base table'],
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'base field' => $entity_info['entity keys']['id'],
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'label' => t('@entity referencing @target_entity from !field_name', $replacements),
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'group' => t('Entity Reference'),
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'title' => t('Referencing entity'),
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'help' => t('A bridge to the @entity entity that is referencing @target_entity via !field_name', $replacements),
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'join_extra' => array(
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0 => array(
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'field' => 'entity_type',
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'value' => $entity_type,
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),
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1 => array(
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'field' => 'deleted',
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'value' => 0,
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'numeric' => TRUE,
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),
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),
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);
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}
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}
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}
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/**
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* Implements hook_views_plugins().
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*/
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function entityreference_views_plugins() {
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$plugins = array(
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'display' => array(
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'entityreference' => array(
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'title' => t('Entity Reference'),
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'admin' => t('Entity Reference Source'),
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'help' => 'Selects referenceable entities for an entity reference field',
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'handler' => 'entityreference_plugin_display',
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'uses hook menu' => FALSE,
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'use ajax' => FALSE,
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'use pager' => FALSE,
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'accept attachments' => FALSE,
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// Custom property, used with views_get_applicable_views() to retrieve
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// all views with a 'Entity Reference' display.
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'entityreference display' => TRUE,
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),
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),
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'style' => array(
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'entityreference_style' => array(
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'title' => t('Entity Reference list'),
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'help' => 'Returns results as a PHP array of labels and rendered rows.',
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'handler' => 'entityreference_plugin_style',
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'theme' => 'views_view_unformatted',
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'uses row plugin' => TRUE,
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'uses fields' => TRUE,
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'uses options' => TRUE,
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'type' => 'entityreference',
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'even empty' => TRUE,
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),
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),
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'row' => array(
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'entityreference_fields' => array(
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'title' => t('Inline fields'),
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'help' => t('Displays the fields with an optional template.'),
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'handler' => 'entityreference_plugin_row_fields',
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'theme' => 'views_view_fields',
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'theme path' => drupal_get_path('module', 'views') . '/theme',
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'theme file' => 'theme.inc',
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'uses fields' => TRUE,
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'uses options' => TRUE,
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'type' => 'entityreference',
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),
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),
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);
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return $plugins;
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}
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