119 lines
4.1 KiB
PHP
119 lines
4.1 KiB
PHP
<?php
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/**
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* @file
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* Provides Rules integration for entities provided via the CRUD API.
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*
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* Rules automatically provides us with actions for CRUD and a suiting entity
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* data type. For events the controller automatically invokes Rules events once
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* Rules is active, so we just have to provide the appropriate info.
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*/
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/**
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* Default controller for generating Rules integration.
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*/
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class EntityDefaultRulesController {
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protected $type, $info;
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public function __construct($type) {
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$this->type = $type;
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$this->info = entity_get_info($type);
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}
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public function eventInfo() {
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$info = $this->info;
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$type = $this->type;
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$label = $info['label'];
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$defaults = array(
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'module' => isset($info['module']) ? $info['module'] : 'entity',
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'group' => $label,
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'access callback' => 'entity_rules_integration_event_access',
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);
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$items[$type . '_insert'] = $defaults + array(
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'label' => t('After saving a new @entity', array('@entity' => drupal_strtolower($label))),
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'variables' => entity_rules_events_variables($type, t('created @entity', array('@entity' => drupal_strtolower($label)))),
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);
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$items[$type . '_update'] = $defaults + array(
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'label' => t('After updating an existing @entity', array('@entity' => drupal_strtolower($label))),
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'variables' => entity_rules_events_variables($type, t('updated @entity', array('@entity' => drupal_strtolower($label))), TRUE),
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);
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$items[$type . '_presave'] = $defaults + array(
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'label' => t('Before saving a @entity', array('@entity' => drupal_strtolower($label))),
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'variables' => entity_rules_events_variables($type, t('saved @entity', array('@entity' => drupal_strtolower($label))), TRUE),
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);
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$items[$type . '_delete'] = $defaults + array(
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'label' => t('After deleting a @entity', array('@entity' => drupal_strtolower($label))),
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'variables' => entity_rules_events_variables($type, t('deleted @entity', array('@entity' => drupal_strtolower($label)))),
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);
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if (count($info['view modes'])) {
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$items[$type . '_view'] = $defaults + array(
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'label' => t('@entity is viewed', array('@entity' => $label)),
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'variables' => entity_rules_events_variables($type, t('viewed @entity', array('@entity' => drupal_strtolower($label)))) + array(
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'view_mode' => array(
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'type' => 'text',
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'label' => t('view mode'),
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'options list' => 'rules_get_entity_view_modes',
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// Add the entity-type for the options list callback.
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'options list entity type' => $type,
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),
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),
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);
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}
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// Specify that on presave the entity is saved anyway.
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$items[$type . '_presave']['variables'][$type]['skip save'] = TRUE;
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return $items;
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}
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}
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/**
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* Returns some parameter info suiting for the specified entity type.
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*/
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function entity_rules_events_variables($type, $label, $update = FALSE) {
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$args = array(
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$type => array('type' => $type, 'label' => $label),
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);
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if ($update) {
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$args += array(
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$type . '_unchanged' => array(
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'type' => $type,
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'label' => t('unchanged entity'),
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'handler' => 'rules_events_entity_unchanged',
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),
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);
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}
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return $args;
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}
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/**
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* Implements hook_rules_event_info().
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*/
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function entity_rules_event_info() {
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$items = array();
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foreach (entity_crud_get_info() as $type => $info) {
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// By default we enable the controller only for non-configuration.
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$configuration = !empty($info['configuration']) || !empty($info['exportable']);
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$info += array('rules controller class' => $configuration ? FALSE : 'EntityDefaultRulesController');
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if ($info['rules controller class']) {
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$controller = new $info['rules controller class']($type);
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$items += $controller->eventInfo();
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}
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}
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return $items;
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}
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/**
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* Rules integration access callback.
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*/
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function entity_rules_integration_event_access($type, $event_name) {
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// Cut of _insert/_update/.. from the event name.
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$entity_type = substr($event_name, 0, strrpos($event_name, '_'));
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$result = entity_access('view', $entity_type);
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// If no access callback is given, just grant access for viewing.
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return isset($result) ? $result : TRUE;
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}
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