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<?php
/**
* Elgg subgroups plugin
*
* @package ElggSubgroups
*
* TODO:
* * ElggSubgroup class with getMetaContainerGUID() ?
* * Subgroup graphs
*
*/
elgg_register_event_handler('init', 'system', 'subgroups_init');
/**
* Subgroups plugin initialization functions.
*/
function subgroups_init() {
// register a library of helper functions
elgg_register_library('elgg:subgroups', elgg_get_plugins_path() . 'subgroups/lib/subgroups.php');
// override groups library
elgg_register_library('elgg:groups', elgg_get_plugins_path() . 'subgroups/lib/groups.php');
// Register actions
$actions_path = elgg_get_plugins_path() . 'subgroups/actions/subgroups';
elgg_register_action("subgroups/add", $actions_path."/add.php");
elgg_register_action("subgroups/remove", $actions_path."/remove.php");
// Register page handler
elgg_register_page_handler('subgroups', 'subgroups_page_handler');
// Register pagesetup event handler
elgg_register_event_handler('pagesetup', 'system', 'subgroups_setup_sidebar_menus');
// Register unsetter container_guid handler
elgg_register_event_handler('update', 'group', 'subgroups_unset_group_container');
// Register an unrelate link to entity menu (max priority to run the last)
elgg_register_plugin_hook_handler('register', 'menu:entity', 'subgroups_menu_setup', 9999);
// Extend group fields
elgg_register_plugin_hook_handler('profile:fields', 'group', 'subgroups_add_container_field');
// Access permissions
elgg_register_plugin_hook_handler('access:collections:write', 'all', 'subgroups_read_acl_plugin_hook');
// Extending views
elgg_extend_view('groups/sidebar/members', 'groups/sidebar/subgroups', 300);
//TODO elgg_extend_view('groups/forum_latest', 'subgroups/frontpage');
// Extending CSS
elgg_extend_view('css/elements/components', 'groups/css/elements/components');
elgg_register_ajax_view('subgroups/groups_i_can_edit');
// Add group tool
add_group_tool_option('subgroups', elgg_echo('subgroups:in_frontpage'), false);
elgg_extend_view('groups/tool_latest', 'subgroups/group_module');
}
/**
* Configure the groups sidebar menu. Triggered on page setup
*
*/
function subgroups_setup_sidebar_menus() {
elgg_unregister_menu_item('page', 'groups:member');
// Get the page owner entity
$page_owner = elgg_get_page_owner_entity();
if (elgg_get_context() == 'group_profile' || elgg_get_context() == 'groups') {
if ($page_owner instanceof ElggGroup) {
if (elgg_is_logged_in() && $page_owner->canEdit() || elgg_is_admin_logged_in()) {
$url = elgg_get_site_url() . "subgroups/edit/{$page_owner->getGUID()}";
elgg_register_menu_item('page', array(
'name' => 'subgroups',
'text' => elgg_echo('subgroups:add'),
'href' => $url,
));
}
}
}
}
/**
* Dispatches subgroups pages.
* URLs take the form of
*
* Group view subgroups: subgroups/owner/<group_guid>
* Group manage subgroups: subgroups/manage/<group_guid>
*
* @param array $page
* @return NULL
*/
function subgroups_page_handler($page){
$pages_path = elgg_get_plugins_path() . "subgroups/pages";
switch($page[0]) {
case 'add':
case 'edit':
elgg_set_page_owner_guid($page[1]);
include($pages_path."/subgroups/edit.php");
break;
case 'owner':
elgg_set_page_owner_guid($page[1]);
include($pages_path."/subgroups/owner.php");
break;
case 'new':
$group = new ElggGroup((int)$page[1]);
if (!$group->guid) {
register_error(elgg_echo('error:default'));
return false;
}
elgg_load_library('elgg:groups');
$title = elgg_echo('subgroups:new:of', array($group->name));
elgg_push_breadcrumb(elgg_echo('groups'), "groups/all");
elgg_push_breadcrumb($group->name, $group->getURL());
elgg_push_breadcrumb(elgg_echo('subgroups:new'));
set_input('container_guid', $group->guid);
$body = elgg_view_layout('content', array(
'content' => elgg_view('groups/edit'),
'title' => $title,
'filter' => '',
));
echo elgg_view_page($title, $body);
break;
default:
return false;
}
return true;
}
function subgroups_menu_setup($hook, $type, $return, $params){
$group = elgg_get_page_owner_entity();
$othergroup = $params['entity'];
if($group instanceof ElggGroup && $group->canEdit() &&
$othergroup instanceof ElggGroup &&
elgg_in_context('subgroups')){
// Delete all previous links
$return = array();
$url = elgg_http_add_url_query_elements('action/subgroups/remove', array(
'group' => $group->guid,
'othergroup' => $othergroup->guid,
));
$options = array(
'name' => 'delete',
'href' => $url,
'text' => "<span class=\"elgg-icon elgg-icon-delete\"></span>",
'confirm' => elgg_echo('deleteconfirm'),
'text_encode' => false,
);
$return[] = ElggMenuItem::factory($options);
}
return $return;
}
/**
* Unset container guid when a group is created. Triggered on group save.
* Using SQL since event is triggered on save() function and we can't do
* call the function again.
*
*/
function subgroups_unset_group_container($event, $object_type, $entity) {
global $CONFIG;
if (!elgg_instanceof($entity->getContainerEntity(), 'group')) {
$query = "UPDATE {$CONFIG->dbprefix}entities set"
. " container_guid=0 where guid={$entity->guid}";
return !!(update_data($query));
}
return true;
}
function subgroups_add_container_field($hook, $type, $return, $params) {
$return['container_guid'] = 'hidden';
return $return;
}
/**
* Hook to listen to read access control requests and return parent groups.
*/
function subgroups_read_acl_plugin_hook($hook, $entity_type, $returnvalue, $params) {
$page_owner = elgg_get_page_owner_entity();
$user_guid = $params['user_id'];
$user = get_entity($user_guid);
if (!$user) {
return $returnvalue;
}
// only insert group access for current group
if ($page_owner instanceof ElggGroup) {
$parent_group = $page_owner->getContainerEntity();
while ($parent_group) {
$returnvalue[$parent_group->group_acl] = elgg_echo('groups:group') . ': ' . $parent_group->name;
$parent_group = $parent_group->getContainerEntity();
}
}
return $returnvalue;
}
|
