1 files changed, 56 insertions, 0 deletions
diff --git a/mod/groups/actions/groups/membership/invite.php b/mod/groups/actions/groups/membership/invite.php
new file mode 100644
index 000000000..a96165b0e
--- /dev/null
+++ b/mod/groups/actions/groups/membership/invite.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * Invite users to join a group
+ *
+ * @package ElggGroups
+ */
+
+$logged_in_user = elgg_get_logged_in_user_entity();
+
+$user_guids = get_input('user_guid');
+if (!is_array($user_guids)) {
+	$user_guids = array($user_guids);
+}
+$group_guid = get_input('group_guid');
+$group = get_entity($group_guid);
+
+if (count($user_guids) > 0 && elgg_instanceof($group, 'group') && $group->canEdit()) {
+	foreach ($user_guids as $guid) {
+		$user = get_user($guid);
+		if (!$user) {
+			continue;
+		}
+
+		if (check_entity_relationship($group->guid, 'invited', $user->guid)) {
+			register_error(elgg_echo("groups:useralreadyinvited"));
+			continue;
+		}
+
+		if (check_entity_relationship($user->guid, 'member', $group->guid)) {
+			// @todo add error message
+			continue;
+		}
+
+		// Create relationship
+		add_entity_relationship($group->guid, 'invited', $user->guid);
+
+		// Send notification
+		$url = elgg_normalize_url("groups/invitations/$user->username");
+		$result = notify_user($user->getGUID(), $group->owner_guid,
+				elgg_echo('groups:invite:subject', array($user->name, $group->name)),
+				elgg_echo('groups:invite:body', array(
+					$user->name,
+					$logged_in_user->name,
+					$group->name,
+					$url,
+				)),
+				NULL);
+		if ($result) {
+			system_message(elgg_echo("groups:userinvited"));
+		} else {
+			register_error(elgg_echo("groups:usernotinvited"));
+		}
+	}
+}
+
+forward(REFERER);