From 8c0897d92395d897a8e40a2d1b97e5f838520296 Mon Sep 17 00:00:00 2001
From: Sem <sembrestels@riseup.net>
Date: Sun, 8 Jul 2012 12:21:19 +0200
Subject: Fixes #1792. Added pluggin setting in groups to set who can create
 groups, logged in users or only admins.

---
 mod/groups/actions/groups/edit.php                   |  6 +++++-
 mod/groups/languages/en.php                          |  4 +++-
 mod/groups/lib/groups.php                            | 10 ++++++++--
 mod/groups/views/default/plugins/groups/settings.php | 18 ++++++++++++++++++
 4 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/mod/groups/actions/groups/edit.php b/mod/groups/actions/groups/edit.php
index b513a6098..a76bde0ac 100644
--- a/mod/groups/actions/groups/edit.php
+++ b/mod/groups/actions/groups/edit.php
@@ -39,10 +39,14 @@ $user = elgg_get_logged_in_user_entity();
 $group_guid = (int)get_input('group_guid');
 $new_group_flag = $group_guid == 0;
 
+if ($new_group_flag && elgg_get_plugin_setting('limited_groups', 'groups') == 'yes' && !elgg_is_admin_logged_in()) {
+	register_error(elgg_echo("groups:cantcreate"));
+	forward(REFERER);
+}
+
 $group = new ElggGroup($group_guid); // load if present, if not create a new group
 if (($group_guid) && (!$group->canEdit())) {
 	register_error(elgg_echo("groups:cantedit"));
-
 	forward(REFERER);
 }
 
diff --git a/mod/groups/languages/en.php b/mod/groups/languages/en.php
index 4868aa334..0ca980108 100644
--- a/mod/groups/languages/en.php
+++ b/mod/groups/languages/en.php
@@ -41,6 +41,7 @@ $english = array(
 	'groups:noaccess' => 'No access to group',
 	'groups:permissions:error' => 'You do not have the permissions for this',
 	'groups:ingroup' => 'in the group',
+	'groups:cantcreate' => 'You can not create a group. Only admins can.',
 	'groups:cantedit' => 'You can not edit this group',
 	'groups:saved' => 'Group saved',
 	'groups:featured' => 'Featured groups',
@@ -259,6 +260,7 @@ or click below to view the group's join requests:
 	'groups:forumtopic:edited' => 'Forum topic successfully edited.',
 
 	'groups:allowhiddengroups' => 'Do you want to allow private (invisible) groups?',
+	'groups:whocancreate' => 'Who can create new groups?',
 
 	/**
 	 * Action messages
@@ -285,4 +287,4 @@ or click below to view the group's join requests:
 
 );
 
-add_translation("en", $english);
\ No newline at end of file
+add_translation("en", $english);
diff --git a/mod/groups/lib/groups.php b/mod/groups/lib/groups.php
index 51ae89a87..dfbb1154b 100644
--- a/mod/groups/lib/groups.php
+++ b/mod/groups/lib/groups.php
@@ -12,7 +12,9 @@ function groups_handle_all_page() {
 	elgg_pop_breadcrumb();
 	elgg_push_breadcrumb(elgg_echo('groups'));
 
-	elgg_register_title_button();
+	if (elgg_get_plugin_setting('limited_groups', 'groups') != 'yes' || elgg_is_admin_logged_in()) {
+		elgg_register_title_button();
+	}
 
 	$selected_tab = get_input('filter', 'newest');
 
@@ -184,7 +186,11 @@ function groups_handle_edit_page($page, $guid = 0) {
 		elgg_set_page_owner_guid(elgg_get_logged_in_user_guid());
 		$title = elgg_echo('groups:add');
 		elgg_push_breadcrumb($title);
-		$content = elgg_view('groups/edit');
+		if (elgg_get_plugin_setting('limited_groups', 'groups') != 'yes' || elgg_is_admin_logged_in()) {
+			$content = elgg_view('groups/edit');
+		} else {
+			$content = elgg_echo('groups:cantcreate');
+		}
 	} else {
 		$title = elgg_echo("groups:edit");
 		$group = get_entity($guid);
diff --git a/mod/groups/views/default/plugins/groups/settings.php b/mod/groups/views/default/plugins/groups/settings.php
index 7197dcb37..41ea146db 100644
--- a/mod/groups/views/default/plugins/groups/settings.php
+++ b/mod/groups/views/default/plugins/groups/settings.php
@@ -8,6 +8,11 @@ if (!isset($vars['entity']->hidden_groups)) {
 	$vars['entity']->hidden_groups = 'no';
 }
 
+// set default value
+if (!isset($vars['entity']->limited_groups)) {
+	$vars['entity']->limited_groups = 'no';
+}
+
 echo '<div>';
 echo elgg_echo('groups:allowhiddengroups');
 echo ' ';
@@ -20,3 +25,16 @@ echo elgg_view('input/dropdown', array(
 	'value' => $vars['entity']->hidden_groups,
 ));
 echo '</div>';
+
+echo '<div>';
+echo elgg_echo('groups:whocancreate');
+echo ' ';
+echo elgg_view('input/dropdown', array(
+	'name' => 'params[limited_groups]',
+	'options_values' => array(
+		'no' => elgg_echo('LOGGED_IN'),
+		'yes' => elgg_echo('admin')
+	),
+	'value' => $vars['entity']->limited_groups,
+));
+echo '</div>';
-- 
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