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- <?php
- /**
- * @file
- * Features integration for Flag module.
- */
- /**
- * Implements hook_features_export().
- */
- function flag_features_export($data, &$export, $module_name = '') {
- $pipe = array();
- // Add flag module as a dependency.
- $export['dependencies']['flag'] = 'flag';
- // Ensure the modules that provide the flag are included as dependencies.
- $modules = flag_features_providing_module();
- foreach ($data as $key => $flag) {
- $module = '';
- if ($flag = flag_load($flag, TRUE)) {
- // Try to get the module that provides the entity this flag is on.
- // First pass: check whether there's a module that implements
- // hook_flag_type_info() for this entity.
- if (array_key_exists($flag->entity_type, $modules)) {
- $module = $modules[$flag->entity_type];
- }
- else {
- // Second pass: check whether this entity is defined using Entity API
- // and therefore has an extra 'module' property in its information.
- if ($entity_info = entity_get_info($flag->entity_type)) {
- if (isset($entity_info['module'])) {
- $module = $entity_info['module'];
- }
- }
- }
- if (!empty($module)) {
- $export['dependencies'][$module] = $module;
- }
- $export['features']['flag'][$flag->name] = $flag->name;
- }
- }
- return $pipe;
- }
- /**
- * Implements hook_features_export_options().
- */
- function flag_features_export_options() {
- $options = array();
- // Get all flags, including disabled defaults.
- $flags = flag_get_flags() + flag_get_default_flags(TRUE);
- foreach ($flags as $name => $flag) {
- $options[$name] = drupal_ucfirst(check_plain($flag->entity_type)) . ': ' . check_plain($flag->title);
- }
- return $options;
- }
- /**
- * Implements hook_features_export_render().
- */
- function flag_features_export_render($module, $data) {
- module_load_include('inc', 'flag', '/includes/flag.export');
- $code = flag_export_flags($data, $module, ' ');
- return array('flag_default_flags' => $code);
- }
- /**
- * Implements hook_features_revert().
- *
- * @param string $module
- * The name of module for which to revert content.
- */
- function flag_features_revert($module = NULL) {
- // Get default flags from features.
- if (module_hook($module, 'flag_default_flags')) {
- module_load_include('inc', 'flag', '/includes/flag.admin');
- $default_flags = module_invoke($module, 'flag_default_flags');
- // Build up values for the cache clear.
- $entity_types = array();
- // Revert flags that are defined in code.
- foreach ($default_flags as $flag_name => $flag_info) {
- if (is_numeric($flag_name)) {
- // Backward compatibility.
- $flag_name = $flag_info['name'];
- }
- $flag = flag_load($flag_name, TRUE);
- if ($flag && $flag->revert() === FALSE) {
- drupal_set_message(t('Could not revert flag %flag-name to the state described in your code: Your flag was created by a different version of the Flag module than is now being used.', array('%flag-name' => $flag->name)), 'error');
- }
- $entity_types[] = $flag->entity_type;
- }
- _flag_clear_cache($entity_types);
- }
- }
- /**
- * Helper function; Retrieve the providing modules defining the flags.
- */
- function flag_features_providing_module() {
- $modules = array();
- $hook = 'flag_type_info';
- foreach (module_implements($hook) as $module) {
- foreach (module_invoke($module, $hook) as $key => $value) {
- $modules[$key] = isset($value['module']) ? $value['module'] : $module;
- }
- }
- // Any entity type without a flag providing module will be provided by the
- // flag module.
- foreach (entity_get_info() as $entity_type => $entity) {
- if (!isset($modules[$entity_type]) && empty($entity['configuration']) && $entity_type !== 'taxonomy_vocabulary') {
- $modules[$entity_type] = 'flag';
- }
- }
- return $modules;
- }
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