83 lines
2.5 KiB
PHP
83 lines
2.5 KiB
PHP
<?php defined("SYSPATH") or die("No direct script access.");
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/**
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* Gallery - a web based photo album viewer and editor
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* Copyright (C) 2000-2011 Bharat Mediratta
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/**
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* This is the API for handling groups.
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*
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* Note: by design, this class does not do any permission checking.
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*/
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class group_Core {
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/**
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* The group of all possible visitors. This includes the guest user.
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*
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* @return Group_Definition the group object
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*/
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static function everybody() {
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return model_cache::get("group", 1);
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}
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/**
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* The group of all logged-in visitors. This does not include guest users.
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*
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* @return Group_Definition the group object
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*/
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static function registered_users() {
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return model_cache::get("group", 2);
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}
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/**
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* Look up a group by id.
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* @param integer $id the user id
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* @return Group_Definition the group object, or null if the id was invalid.
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*/
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static function lookup($id) {
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return self::_lookup_by_field("id", $id);
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}
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/**
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* Look up a group by name.
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* @param integer $id the group name
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* @return Group_Definition the group object, or null if the name was invalid.
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*/
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static function lookup_by_name($name) {
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return self::_lookup_by_field("name", $name);
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}
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/**
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* Search the groups by the field and value.
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* @param string $field_name column to look up the user by
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* @param string $value value to match
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* @return Group_Definition the group object, or null if the name was invalid.
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*/
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private static function _lookup_by_field($field_name, $value) {
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try {
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$group = model_cache::get("group", $value, $field_name);
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if ($group->loaded()) {
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return $group;
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}
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} catch (Exception $e) {
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if (strpos($e->getMessage(), "MISSING_MODEL") === false) {
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throw $e;
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}
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}
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return null;
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}
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}
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