692 lines
22 KiB
Plaintext
692 lines
22 KiB
Plaintext
<?php
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/**
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* @file
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* Actions support for the Flag module.
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*/
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/**
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* Implements hook_flag_flag(). Trigger actions if any are available.
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*/
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function flag_actions_flag_flag($flag, $entity_id, $account, $flagging) {
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flag_actions_do('flag', $flag, $entity_id, $account);
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}
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/**
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* Implements hook_flag_unflag(). Trigger actions if any are available.
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*/
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function flag_actions_flag_unflag($flag, $entity_id, $account, $flagging) {
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flag_actions_do('unflag', $flag, $entity_id, $account);
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}
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/**
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* Implements hook_menu().
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*/
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function flag_actions_menu() {
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$items = array();
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$items[FLAG_ADMIN_PATH . '/actions'] = array(
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'title' => 'Actions',
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'page callback' => 'flag_actions_page',
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'access callback' => 'user_access',
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'access arguments' => array('administer actions'),
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'type' => MENU_LOCAL_TASK,
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'weight' => 1,
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);
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$items[FLAG_ADMIN_PATH . '/actions/add'] = array(
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'title' => 'Add action',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('flag_actions_form', NULL, 5),
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'access callback' => 'user_access',
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'access arguments' => array('administer actions'),
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'type' => MENU_CALLBACK,
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);
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$items[FLAG_ADMIN_PATH . '/actions/delete'] = array(
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'title' => 'Delete action',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('flag_actions_delete_form', 5),
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'access callback' => 'user_access',
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'access arguments' => array('administer actions'),
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'type' => MENU_CALLBACK,
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);
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$items[FLAG_ADMIN_PATH . '/actions/configure'] = array(
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'title' => 'Edit action',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('flag_actions_form', 5),
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'access callback' => 'user_access',
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'access arguments' => array('administer actions'),
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'type' => MENU_CALLBACK,
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);
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return $items;
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}
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/**
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* Implements hook_theme().
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*/
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function flag_actions_theme() {
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return array(
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'flag_actions_page' => array(
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'variables' => array('actions' => NULL, 'form' => NULL),
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),
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'flag_actions_add_form' => array(
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'render element' => 'form',
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),
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'flag_actions_flag_form' => array(
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'render element' => 'form',
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),
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);
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}
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function flag_actions_get_action($aid) {
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$actions = flag_actions_get_actions();
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return $actions[$aid];
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}
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function flag_actions_get_actions($flag_name = NULL, $reset = FALSE) {
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$flag_actions = &drupal_static(__FUNCTION__);
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module_load_include('inc', 'flag', 'includes/flag.actions');
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// Get a list of all possible actions defined by modules.
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$actions = module_invoke_all('action_info');
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// Retrieve the list of user-defined flag actions.
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if (!isset($flag_actions) || $reset) {
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$flag_actions = array();
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$query = db_select('flag_actions', 'a');
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$query->innerJoin('flag', 'f', 'a.fid = f.fid');
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$query->addField('f', 'name', 'flag');
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$result = $query
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->fields('a')
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->execute();
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foreach ($result as $action) {
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if (!isset($actions[$action->callback])) {
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$actions[$action->callback] = array(
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'description' => t('Missing action "@action-callback". Module providing it was either uninstalled or disabled.', array('@action-callback' => $action->callback)),
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'configurable' => FALSE,
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'type' => 'node',
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'missing' => TRUE,
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);
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}
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$action->parameters = unserialize($action->parameters);
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$action->label = $actions[$action->callback]['label'];
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$action->configurable = $actions[$action->callback]['configurable'];
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$action->behavior = isset($actions[$action->callback]['behavior']) ? $actions[$action->callback]['behavior'] : array();
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$action->type = $actions[$action->callback]['type'];
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$action->missing = !empty($actions[$action->callback]['missing']);
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$flag_actions[$action->aid] = $action;
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}
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}
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// Filter actions to a specified flag.
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if (isset($flag_name)) {
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$specific_flag_actions = array();
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foreach ($flag_actions as $aid => $action) {
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if ($action->flag == $flag_name) {
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$specific_flag_actions[$aid] = $action;
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}
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}
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return $specific_flag_actions;
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}
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return $flag_actions;
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}
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/**
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* Insert a new flag action.
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*
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* @param int $fid
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* The flag object ID.
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* @param string $event
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* The flag event, such as "flag" or "unflag".
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* @param int $threshold
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* The flagging threshold at which this action will be executed.
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* @param int $repeat_threshold
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* The number of additional flaggings after which the action will be repeated.
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* @param string $callback
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* The action callback to be executed.
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* @param array $parameters
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* The action parameters.
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*/
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function flag_actions_insert_action($fid, $event, $threshold, $repeat_threshold, $callback, $parameters) {
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return db_insert('flag_actions')
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->fields(array(
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'fid' => $fid,
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'event' => $event,
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'threshold' => $threshold,
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'repeat_threshold' => $repeat_threshold,
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'callback' => $callback,
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'parameters' => serialize($parameters),
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))
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->execute();
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}
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/**
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* Update an existing flag action.
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*
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* @param int $aid
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* The flag action ID to update.
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* @param string $event
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* The flag event, such as "flag" or "unflag".
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* @param int $threshold
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* The flagging threshold at which this action will be executed.
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* @param int $repeat_threshold
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* The number of additional flaggings after which the action will be repeated.
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* @param array $parameters
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* The action parameters.
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*/
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function flag_actions_update_action($aid, $event, $threshold, $repeat_threshold, $parameters) {
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return db_update('flag_actions')
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->fields(array(
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'event' => $event,
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'threshold' => $threshold,
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'repeat_threshold' => $repeat_threshold,
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'parameters' => serialize($parameters),
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))
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->condition('aid', $aid)
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->execute();
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}
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/**
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* Delete a flag action.
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*
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* @param int $aid
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* The flag action ID to delete.
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*/
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function flag_actions_delete_action($aid) {
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return db_delete('flag_actions', array('return' => Database::RETURN_AFFECTED))
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->condition('aid', $aid)
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->execute();
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}
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/**
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* Perform flag actions.
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*/
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function flag_actions_do($event, $flag, $entity_id, $account) {
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$actions = flag_actions_get_actions($flag->name);
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if (!$actions) {
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return;
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}
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$flag_action = $flag->get_flag_action($entity_id);
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$flag_action->action = $event;
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$flag_action->count = $count = $flag->get_count($entity_id);
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$relevant_objects = $flag->get_relevant_action_objects($entity_id);
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$object_changed = FALSE;
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foreach ($actions as $aid => $action) {
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if ($action->event == 'flag') {
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$at_threshold = ($count == $action->threshold);
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$repeat = $action->repeat_threshold ? (($count > $action->threshold) && (($count - $action->threshold) % $action->repeat_threshold == 0)) : FALSE;
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}
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elseif ($action->event == 'unflag') {
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$at_threshold = ($count == $action->threshold - 1);
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$repeat = $action->repeat_threshold ? (($count < $action->threshold - 1) && (($count - $action->threshold - 1) % $action->repeat_threshold == 0)) : FALSE;
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}
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if (($at_threshold || $repeat) && $action->event == $event && !$action->missing) {
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$context = $action->parameters;
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$context['callback'] = $action->callback;
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// We're setting 'hook' to something, to prevent PHP warnings by actions
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// who read it. Maybe we should set it to nodeapi/comment/user, depending
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// on the flag, because these three are among the only hooks some actions
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// in system.module "know" to work with.
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$context['hook'] = 'flag';
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$context['type'] = $action->type;
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$context['account'] = $account;
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$context['flag'] = $flag;
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$context['flag-action'] = $flag_action;
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// We add to the $context all the objects we know about:
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$context = array_merge($relevant_objects, $context);
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$callback = $action->callback;
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if (isset($relevant_objects[$action->type])) {
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$callback($relevant_objects[$action->type], $context);
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}
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else {
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// What object shall we send as last resort? Let's send a node, or
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// the flag's object.
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if (isset($relevant_objects['node'])) {
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$callback($relevant_objects['node'], $context);
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}
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else {
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$callback($relevant_objects[$flag->entity_type], $context);
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}
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}
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if (is_array($action->behavior) && in_array('changes_property', $action->behavior)) {
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$object_changed = TRUE;
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}
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}
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}
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// Actions by default do not save elements unless the save action is
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// explicitly added. We run it automatically upon flagging.
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if ($object_changed) {
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$save_action = $action->type . '_save_action';
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if (function_exists($save_action)) {
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$save_action($relevant_objects[$action->type]);
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}
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}
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}
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/**
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* Menu callback for FLAG_ADMIN_PATH/actions.
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*/
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function flag_actions_page() {
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$actions = flag_actions_get_actions();
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$add_action_form = drupal_get_form('flag_actions_add_form');
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return theme('flag_actions_page', array('actions' => $actions, 'form' => $add_action_form));
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}
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/**
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* Theme the list of actions currently in place for flags.
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*/
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function theme_flag_actions_page($variables) {
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$actions = $variables['actions'];
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$add_action_form = $variables['form'];
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$rows = array();
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foreach ($actions as $action) {
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$flag = flag_get_flag($action->flag);
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// Build a sample string representing repeating actions.
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if ($action->repeat_threshold) {
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$repeat_count = 3;
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$repeat_subtract = ($action->event == 'flag') ? 1 : -1;
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$repeat_samples = array();
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for ($n = 1; $n < $repeat_count + 2; $n++) {
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$sample = $action->threshold + (($n * $action->repeat_threshold) * $repeat_subtract);
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if ($sample > 0) {
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$repeat_samples[] = $sample;
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}
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}
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if (count($repeat_samples) > $repeat_count) {
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$repeat_samples[$repeat_count] = '…';
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}
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$repeat_string = implode(', ', $repeat_samples);
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}
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else {
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$repeat_string = '-';
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}
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$row = array();
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$row[] = $flag->get_title();
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$row[] = ($action->event == 'flag' ? '≥ ' : '< ') . $action->threshold;
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$row[] = $repeat_string;
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$row[] = empty($action->missing) ? $action->label : '<div class="error">' . $action->label . '</div>';
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$row[] = l(t('edit'), FLAG_ADMIN_PATH . '/actions/configure/' . $action->aid);
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$row[] = l(t('delete'), FLAG_ADMIN_PATH . '/actions/delete/' . $action->aid);
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$rows[] = $row;
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}
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if (empty($rows)) {
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$rows[] = array(array('data' => t('Currently no flag actions. Use the <em>Add new flag action</em> form to add an action.'), 'colspan' => 6));
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}
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$header = array(
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t('Flag'),
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t('Threshold'),
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t('Repeats'),
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t('Action'),
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array('data' => t('Operations'), 'colspan' => 2),
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);
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$output = '';
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$output .= theme('table', array('header' => $header, 'rows' => $rows));
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$output .= drupal_render($add_action_form);
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return $output;
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}
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/**
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* Modified version of the Add action form that redirects back to the flag list.
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*/
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function flag_actions_add_form($form, &$form_state) {
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$flags = flag_get_flags();
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$options = array();
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foreach ($flags as $flag) {
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$options[$flag->name] = $flag->get_title();
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}
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if (empty($options)) {
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$options[] = t('No flag available');
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}
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$form['flag'] = array(
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'#type' => 'select',
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'#options' => empty($options) ? array(t('No flag available')) : $options,
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'#disabled' => empty($options),
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'#title' => t('Select a flag'),
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);
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$form['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Add action'),
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);
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return $form;
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}
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function flag_actions_add_form_submit($form, &$form_state) {
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if ($form_state['values']['flag']) {
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$form_state['redirect'] = array(FLAG_ADMIN_PATH . '/actions/add/' . $form_state['values']['flag']);
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}
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}
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function theme_flag_actions_add_form($variables) {
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$form = $variables['form'];
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$fieldset = array(
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'#type' => 'fieldset',
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'#title' => t('Add a new flag action'),
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'#children' => '<div class="container-inline">' . drupal_render($form['flag']) . drupal_render($form['submit']) . '</div>',
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'#parents' => array('add_action'),
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'#attributes' => array(),
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'#groups' => array('add_action' => array()),
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);
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return drupal_render($fieldset) . drupal_render_children($form);
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}
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/**
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* Generic configuration form for configuration of flag actions.
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*
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* @param $form_state
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* The form state.
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* @param int|NULL $aid
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* If editing an action, an action ID must be passed in.
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* @param string|NULL $flag_name
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* If adding a new action to a flag, a flag name must be specified.
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*/
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function flag_actions_form($form, &$form_state, $aid = NULL, $flag_name = NULL) {
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// This is a multistep form. Get the callback value if set and continue.
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if (isset($form_state['storage']['callback'])) {
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$callback = $form_state['storage']['callback'];
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unset($form_state['storage']['callback']);
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}
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if (isset($aid)) {
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$action = flag_actions_get_action($aid);
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$callback = $action->callback;
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$flag = flag_get_flag($action->flag);
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drupal_set_title(t('Edit the "@action" action for the @title flag', array('@action' => $action->label, '@title' => $flag->get_title())));
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}
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elseif (isset($flag_name)) {
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$flag = flag_get_flag($flag_name);
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}
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if (empty($flag)) {
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drupal_not_found();
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}
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$form['new'] = array(
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'#type' => 'value',
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'#value' => isset($callback) ? FALSE : TRUE,
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);
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if (!isset($callback)) {
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drupal_set_title(t('Add an action to the @title flag', array('@title' => $flag->get_title())));
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$actions = $flag->get_valid_actions();
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$options = array();
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foreach ($actions as $key => $action) {
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$options[$key] = $action['label'];
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}
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$form['callback'] = array(
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'#title' => t('Select an action'),
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'#type' => 'select',
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'#options' => $options,
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);
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$form['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Continue'),
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);
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return $form;
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}
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elseif (!isset($action)) {
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$actions = $flag->get_valid_actions();
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$action = (object) $actions[$callback];
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$action->parameters = array();
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$action->event = 'flag';
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$action->threshold = 10;
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$action->repeat_threshold = 0;
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drupal_set_title(t('Add "@action" action to the @title flag', array('@action' => $action->label, '@title' => $flag->get_title())));
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}
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$form['flag'] = array(
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'#tree' => TRUE,
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'#weight' => -9,
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'#theme' => 'flag_actions_flag_form',
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'#action' => $action,
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'#flag' => $flag,
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);
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$form['flag']['flag'] = array(
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'#type' => 'value',
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'#value' => $flag,
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);
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$form['flag']['callback'] = array(
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'#type' => 'value',
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'#value' => $callback,
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);
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$form['flag']['aid'] = array(
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'#type' => 'value',
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'#value' => $aid,
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);
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$form['flag']['event'] = array(
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'#type' => 'select',
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'#options' => array(
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'flag' => t('reaches'),
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'unflag' => t('falls below'),
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),
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'#default_value' => $action->event,
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);
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$form['flag']['threshold'] = array(
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'#type' => 'textfield',
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'#size' => 6,
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'#maxlength' => 6,
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'#default_value' => $action->threshold,
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'#required' => TRUE,
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);
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$form['flag']['repeat_threshold'] = array(
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'#type' => 'textfield',
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'#size' => 6,
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'#maxlength' => 6,
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'#default_value' => $action->repeat_threshold,
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);
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if ($flag->global) {
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$form['flag']['threshold']['#disabled'] = 1;
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$form['flag']['threshold']['#value'] = 1;
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$form['flag']['repeat_threshold']['#access'] = FALSE;
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$form['flag']['repeat_threshold']['#value'] = 0;
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}
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// Merge in the standard flag action form.
|
|
$action_form = $callback . '_form';
|
|
$edit = array();
|
|
if (function_exists($action_form)) {
|
|
$edit += $action->parameters;
|
|
$edit['actions_label'] = $action->label;
|
|
$edit['actions_type'] = $action->type;
|
|
$edit['actions_flag'] = $flag->name;
|
|
$additions = flag_actions_form_additions($action_form, $edit);
|
|
$form = array_merge($form, $additions);
|
|
}
|
|
|
|
// Add a few customizations to existing flag actions.
|
|
$flag_actions_form = 'flag_actions_' . $callback . '_form';
|
|
if (function_exists($flag_actions_form)) {
|
|
$flag_actions_form($form, $flag, $edit);
|
|
}
|
|
|
|
$form['submit'] = array(
|
|
'#type' => 'submit',
|
|
'#value' => t('Submit'),
|
|
);
|
|
|
|
return $form;
|
|
}
|
|
|
|
/**
|
|
* Execute an action form callback to retrieve form additions.
|
|
*
|
|
* This function prevents the form callback from modifying local variables.
|
|
*/
|
|
function flag_actions_form_additions($callback, $edit) {
|
|
return $callback($edit);
|
|
}
|
|
|
|
/**
|
|
* Generic submit handler for validating flag actions.
|
|
*/
|
|
function flag_actions_form_validate($form, &$form_state) {
|
|
// Special validation handlers may be needed to save this form properly.
|
|
// Try to load the action's validation routine if needed.
|
|
if (isset($form_state['values']['flag']['callback'])) {
|
|
$callback = $form_state['values']['flag']['callback'];
|
|
$validate_function = $callback . '_validate';
|
|
if (function_exists($validate_function)) {
|
|
$validate_function($form, $form_state);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generic submit handler for saving flag actions.
|
|
*/
|
|
function flag_actions_form_submit($form, &$form_state) {
|
|
// If simply gathering the callback, save it to form state storage and
|
|
// rebuild the form to gather the complete information.
|
|
if ($form_state['values']['new']) {
|
|
$form_state['storage']['callback'] = $form_state['values']['callback'];
|
|
$form_state['rebuild'] = TRUE;
|
|
return;
|
|
}
|
|
|
|
$aid = $form_state['values']['flag']['aid'];
|
|
$flag = $form_state['values']['flag']['flag'];
|
|
$event = $form_state['values']['flag']['event'];
|
|
$threshold = $form_state['values']['flag']['threshold'];
|
|
$repeat_threshold = $form_state['values']['flag']['repeat_threshold'];
|
|
$callback = $form_state['values']['flag']['callback'];
|
|
|
|
// Specialized forms may need to execute their own submit handlers on save.
|
|
$submit_function = $callback . '_submit';
|
|
$parameters = function_exists($submit_function) ? $submit_function($form, $form_state) : array();
|
|
|
|
if (empty($aid)) {
|
|
$aid = flag_actions_insert_action($flag->fid, $event, $threshold, $repeat_threshold, $callback, $parameters);
|
|
$form_state['values']['flag']['aid'] = $aid;
|
|
$form_state['values']['flag']['is_new'] = TRUE;
|
|
}
|
|
else {
|
|
flag_actions_update_action($aid, $event, $threshold, $repeat_threshold, $parameters);
|
|
}
|
|
|
|
$action = flag_actions_get_action($aid);
|
|
|
|
drupal_set_message(t('The "@action" action for the @title flag has been saved.', array('@action' => $action->label, '@title' => $flag->get_title())));
|
|
$form_state['redirect'] = FLAG_ADMIN_PATH . '/actions';
|
|
}
|
|
|
|
function theme_flag_actions_flag_form($variables) {
|
|
$form = $variables['form'];
|
|
|
|
$event = drupal_render($form['event']);
|
|
$threshold = drupal_render($form['threshold']);
|
|
$repeat_threshold = drupal_render($form['repeat_threshold']);
|
|
$action = $form['#action']->label;
|
|
|
|
$output = '';
|
|
$output .= '<div class="container-inline">';
|
|
$output .= t('Perform action when content !event !threshold flags', array('!event' => $event, '!threshold' => $threshold));
|
|
if ($form['#flag']->global) {
|
|
$output .= ' ' . t('(global flags always have a threshold of 1)');
|
|
}
|
|
$output .= '</div>';
|
|
$output .= '<div class="container-inline">';
|
|
if (!$form['#flag']->global) {
|
|
$output .= t('Repeat this action every !repeat_threshold additional flags after the threshold is reached', array('!repeat_threshold' => $repeat_threshold));
|
|
}
|
|
$output .= '</div>';
|
|
|
|
$element = array(
|
|
'#title' => t('Flagging threshold'),
|
|
'#required' => TRUE,
|
|
);
|
|
|
|
return $output . drupal_render_children($form);
|
|
}
|
|
|
|
function flag_actions_delete_form($form, &$form_state, $aid) {
|
|
$action = flag_actions_get_action($aid);
|
|
$flag = flag_get_flag($action->flag);
|
|
|
|
$form['action'] = array(
|
|
'#type' => 'value',
|
|
'#value' => $action,
|
|
);
|
|
|
|
$form['flag'] = array(
|
|
'#type' => 'value',
|
|
'#value' => $flag,
|
|
);
|
|
|
|
$question = t('Delete the "@action" action for the @title flag?', array('@action' => $action->label, '@title' => $flag->get_title()));
|
|
$path = FLAG_ADMIN_PATH . '/actions';
|
|
|
|
return confirm_form($form, $question, $path, NULL, t('Delete'));
|
|
}
|
|
|
|
function flag_actions_delete_form_submit(&$form, &$form_state) {
|
|
flag_actions_delete_action($form_state['values']['action']->aid);
|
|
drupal_set_message(t('The "@action" action for the @title flag has been deleted.', array('@action' => $form_state['values']['action']->label, '@title' => $form_state['values']['flag']->get_title())));
|
|
$form_state['redirect'] = FLAG_ADMIN_PATH . '/actions';
|
|
}
|
|
|
|
/**
|
|
* Make modifications to the "Send e-mail" action form.
|
|
*/
|
|
function flag_actions_system_send_email_action_form(&$form, &$flag, $context) {
|
|
if (!isset($context['recipient'])) {
|
|
$form['recipient']['#default_value'] = '[site:mail]';
|
|
}
|
|
|
|
if (!isset($context['subject'])) {
|
|
$form['subject']['#default_value'] = t('Content Flagged @flag_title', array('@flag_title' => $flag->get_title()));
|
|
}
|
|
|
|
if (!isset($context['message'])) {
|
|
$form['message']['#default_value'] = t("The @flag_entity_type [flag-action:content-title] has been flagged [flag-action:count] times with the @flag_title flag.\n\nView this @flag_entity_type at [flag-action:content-url].", array('@flag_entity_type' => $flag->entity_type, '@flag_title' => $flag->get_title()));
|
|
}
|
|
|
|
$form['help'] = array(
|
|
'#type' => 'fieldset',
|
|
'#title' => t('Tokens'),
|
|
'#description' => t('The following tokens can be used in the recipient, subject, or message.'),
|
|
'#collapsible' => TRUE,
|
|
'#collapsed' => TRUE,
|
|
);
|
|
$form['help']['basic'] = array(
|
|
'#markup' => theme('flag_tokens_browser', array('types' => array('flag', 'flag-action'))),
|
|
);
|
|
|
|
$form['help']['tokens'] = array(
|
|
'#type' => 'fieldset',
|
|
'#title' => t('More tokens'),
|
|
'#description' => t("Depending on the type of the content being flagged, the following tokens can be used in the recipients, subject, or message. For example, if the content being flagged is a node, you can use any of the node tokens --but you can't use the comment tokens: they won't be recognized. Similarly, if the content being flagged is a user, you can use only the user tokens."),
|
|
'#value' => theme('flag_tokens_browser', array('types' => $flag->get_labels_token_types(), 'global_types' => FALSE)),
|
|
'#collapsible' => TRUE,
|
|
'#collapsed' => TRUE,
|
|
);
|
|
}
|