499 lines
12 KiB
PHP
499 lines
12 KiB
PHP
<?php
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/**
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* @file src/Model/Group.php
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*/
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namespace Friendica\Model;
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use Friendica\BaseModule;
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use Friendica\BaseObject;
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use Friendica\Core\L10n;
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use Friendica\Core\Logger;
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use Friendica\Core\Protocol;
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use Friendica\Core\Renderer;
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use Friendica\Database\DBA;
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/**
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* @brief functions for interacting with the group database table
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*/
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class Group extends BaseObject
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{
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const FOLLOWERS = '~';
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const MUTUALS = '&';
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public static function getByUserId($uid, $includesDeleted = false)
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{
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$conditions = ['uid' => $uid];
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if (!$includesDeleted) {
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$conditions['deleted'] = false;
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}
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return DBA::selectToArray('group', [], $conditions);
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}
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/**
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* @param int $group_id
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* @return bool
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* @throws \Exception
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*/
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public static function exists($group_id, $uid = null)
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{
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$condition = ['id' => $group_id, 'deleted' => false];
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if (isset($uid)) {
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$condition = [
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'uid' => $uid
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];
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}
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return DBA::exists('group', $condition);
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}
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/**
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* @brief Create a new contact group
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*
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* Note: If we found a deleted group with the same name, we restore it
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*
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* @param int $uid
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* @param string $name
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* @return boolean
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* @throws \Exception
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*/
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public static function create($uid, $name)
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{
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$return = false;
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if (!empty($uid) && !empty($name)) {
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$gid = self::getIdByName($uid, $name); // check for dupes
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if ($gid !== false) {
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// This could be a problem.
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// Let's assume we've just created a group which we once deleted
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// all the old members are gone, but the group remains so we don't break any security
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// access lists. What we're doing here is reviving the dead group, but old content which
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// was restricted to this group may now be seen by the new group members.
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$group = DBA::selectFirst('group', ['deleted'], ['id' => $gid]);
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if (DBA::isResult($group) && $group['deleted']) {
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DBA::update('group', ['deleted' => 0], ['id' => $gid]);
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notice(L10n::t('A deleted group with this name was revived. Existing item permissions <strong>may</strong> apply to this group and any future members. If this is not what you intended, please create another group with a different name.') . EOL);
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}
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return true;
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}
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$return = DBA::insert('group', ['uid' => $uid, 'name' => $name]);
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if ($return) {
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$return = DBA::lastInsertId();
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}
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}
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return $return;
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}
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/**
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* Update group information.
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*
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* @param int $id Group ID
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* @param string $name Group name
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*
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* @return bool Was the update successful?
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* @throws \Exception
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*/
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public static function update($id, $name)
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{
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return DBA::update('group', ['name' => $name], ['id' => $id]);
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}
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/**
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* @brief Get a list of group ids a contact belongs to
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*
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* @param int $cid
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* @return array
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* @throws \Exception
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*/
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public static function getIdsByContactId($cid)
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{
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$return = [];
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$stmt = DBA::select('group_member', ['gid'], ['contact-id' => $cid]);
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while ($group = DBA::fetch($stmt)) {
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$return[] = $group['gid'];
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}
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DBA::close($stmt);
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return $return;
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}
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/**
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* @brief count unread group items
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*
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* Count unread items of each groups of the local user
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*
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* @return array
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* 'id' => group id
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* 'name' => group name
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* 'count' => counted unseen group items
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* @throws \Exception
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*/
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public static function countUnseen()
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{
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$stmt = DBA::p("SELECT `group`.`id`, `group`.`name`,
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(SELECT COUNT(*) FROM `item` FORCE INDEX (`uid_unseen_contactid`)
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WHERE `uid` = ?
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AND `unseen`
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AND `contact-id` IN
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(SELECT `contact-id`
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FROM `group_member`
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WHERE `group_member`.`gid` = `group`.`id`)
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) AS `count`
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FROM `group`
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WHERE `group`.`uid` = ?;",
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local_user(),
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local_user()
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);
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return DBA::toArray($stmt);
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}
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/**
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* @brief Get the group id for a user/name couple
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*
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* Returns false if no group has been found.
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*
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* @param int $uid
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* @param string $name
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* @return int|boolean
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* @throws \Exception
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*/
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public static function getIdByName($uid, $name)
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{
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if (!$uid || !strlen($name)) {
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return false;
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}
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$group = DBA::selectFirst('group', ['id'], ['uid' => $uid, 'name' => $name]);
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if (DBA::isResult($group)) {
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return $group['id'];
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}
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return false;
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}
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/**
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* @brief Mark a group as deleted
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*
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* @param int $gid
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* @return boolean
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* @throws \Exception
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*/
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public static function remove($gid)
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{
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if (!$gid) {
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return false;
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}
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$group = DBA::selectFirst('group', ['uid'], ['id' => $gid]);
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if (!DBA::isResult($group)) {
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return false;
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}
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// remove group from default posting lists
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$user = DBA::selectFirst('user', ['def_gid', 'allow_gid', 'deny_gid'], ['uid' => $group['uid']]);
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if (DBA::isResult($user)) {
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$change = false;
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if ($user['def_gid'] == $gid) {
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$user['def_gid'] = 0;
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$change = true;
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}
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if (strpos($user['allow_gid'], '<' . $gid . '>') !== false) {
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$user['allow_gid'] = str_replace('<' . $gid . '>', '', $user['allow_gid']);
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$change = true;
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}
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if (strpos($user['deny_gid'], '<' . $gid . '>') !== false) {
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$user['deny_gid'] = str_replace('<' . $gid . '>', '', $user['deny_gid']);
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$change = true;
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}
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if ($change) {
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DBA::update('user', $user, ['uid' => $group['uid']]);
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}
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}
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// remove all members
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DBA::delete('group_member', ['gid' => $gid]);
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// remove group
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$return = DBA::update('group', ['deleted' => 1], ['id' => $gid]);
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return $return;
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}
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/**
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* @brief Mark a group as deleted based on its name
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*
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* @param int $uid
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* @param string $name
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* @return bool
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* @throws \Exception
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* @deprecated Use Group::remove instead
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*
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*/
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public static function removeByName($uid, $name)
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{
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$return = false;
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if (!empty($uid) && !empty($name)) {
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$gid = self::getIdByName($uid, $name);
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$return = self::remove($gid);
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}
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return $return;
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}
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/**
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* @brief Adds a contact to a group
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*
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* @param int $gid
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* @param int $cid
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* @return boolean
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* @throws \Exception
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*/
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public static function addMember($gid, $cid)
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{
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if (!$gid || !$cid) {
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return false;
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}
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$row_exists = DBA::exists('group_member', ['gid' => $gid, 'contact-id' => $cid]);
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if ($row_exists) {
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// Row already existing, nothing to do
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$return = true;
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} else {
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$return = DBA::insert('group_member', ['gid' => $gid, 'contact-id' => $cid]);
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}
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return $return;
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}
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/**
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* @brief Removes a contact from a group
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*
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* @param int $gid
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* @param int $cid
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* @return boolean
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* @throws \Exception
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*/
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public static function removeMember($gid, $cid)
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{
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if (!$gid || !$cid) {
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return false;
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}
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$return = DBA::delete('group_member', ['gid' => $gid, 'contact-id' => $cid]);
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return $return;
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}
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/**
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* @brief Removes a contact from a group based on its name
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*
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* @param int $uid
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* @param string $name
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* @param int $cid
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* @return boolean
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* @throws \Exception
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* @deprecated Use Group::removeMember instead
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*
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*/
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public static function removeMemberByName($uid, $name, $cid)
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{
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$gid = self::getIdByName($uid, $name);
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$return = self::removeMember($gid, $cid);
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return $return;
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}
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/**
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* @brief Returns the combined list of contact ids from a group id list
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*
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* @param int $uid
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* @param array $group_ids
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* @param boolean $check_dead
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* @return array
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* @throws \Exception
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*/
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public static function expand($uid, array $group_ids, $check_dead = false)
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{
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if (!is_array($group_ids) || !count($group_ids)) {
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return [];
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}
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$return = [];
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$key = array_search(self::FOLLOWERS, $group_ids);
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if ($key !== false) {
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$followers = Contact::selectToArray(['id'], [
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'uid' => $uid,
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'rel' => [Contact::FOLLOWER, Contact::FRIEND],
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'network' => Protocol::SUPPORT_PRIVATE,
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]);
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foreach ($followers as $follower) {
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$return[] = $follower['id'];
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}
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unset($group_ids[$key]);
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}
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$key = array_search(self::MUTUALS, $group_ids);
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if ($key !== false) {
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$mutuals = Contact::selectToArray(['id'], [
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'uid' => $uid,
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'rel' => [Contact::FRIEND],
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'network' => Protocol::SUPPORT_PRIVATE,
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]);
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foreach ($mutuals as $mutual) {
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$return[] = $mutual['id'];
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}
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unset($group_ids[$key]);
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}
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$stmt = DBA::select('group_member', ['contact-id'], ['gid' => $group_ids]);
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while ($group_member = DBA::fetch($stmt)) {
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$return[] = $group_member['contact-id'];
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}
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DBA::close($stmt);
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if ($check_dead) {
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Contact::pruneUnavailable($return);
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}
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return $return;
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}
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/**
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* @brief Returns a templated group selection list
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*
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* @param int $uid
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* @param int $gid An optional pre-selected group
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* @param string $label An optional label of the list
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* @return string
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* @throws \Exception
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*/
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public static function displayGroupSelection($uid, $gid = 0, $label = '')
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{
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$display_groups = [
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[
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'name' => '',
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'id' => '0',
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'selected' => ''
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]
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];
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$stmt = DBA::select('group', [], ['deleted' => 0, 'uid' => $uid], ['order' => ['name']]);
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while ($group = DBA::fetch($stmt)) {
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$display_groups[] = [
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'name' => $group['name'],
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'id' => $group['id'],
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'selected' => $gid == $group['id'] ? 'true' : ''
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];
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}
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DBA::close($stmt);
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Logger::info('Got groups', $display_groups);
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if ($label == '') {
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$label = L10n::t('Default privacy group for new contacts');
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}
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$o = Renderer::replaceMacros(Renderer::getMarkupTemplate('group_selection.tpl'), [
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'$label' => $label,
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'$groups' => $display_groups
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]);
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return $o;
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}
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/**
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* @brief Create group sidebar widget
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*
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* @param string $every
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* @param string $each
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* @param string $editmode
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* 'standard' => include link 'Edit groups'
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* 'extended' => include link 'Create new group'
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* 'full' => include link 'Create new group' and provide for each group a link to edit this group
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* @param string $group_id
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* @param int $cid
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* @return string
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* @throws \Exception
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*/
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public static function sidebarWidget($every = 'contact', $each = 'group', $editmode = 'standard', $group_id = '', $cid = 0)
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{
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if (!local_user()) {
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return '';
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}
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$display_groups = [
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[
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'text' => L10n::t('Everybody'),
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'id' => 0,
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'selected' => (($group_id === 'everyone') ? 'group-selected' : ''),
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'href' => $every,
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]
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];
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$member_of = [];
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if ($cid) {
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$member_of = self::getIdsByContactId($cid);
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}
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$stmt = DBA::select('group', [], ['deleted' => 0, 'uid' => local_user()], ['order' => ['name']]);
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while ($group = DBA::fetch($stmt)) {
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$selected = (($group_id == $group['id']) ? ' group-selected' : '');
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if ($editmode == 'full') {
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$groupedit = [
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'href' => 'group/' . $group['id'],
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'title' => L10n::t('edit'),
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];
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} else {
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$groupedit = null;
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}
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$display_groups[] = [
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'id' => $group['id'],
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'cid' => $cid,
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'text' => $group['name'],
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'href' => $each . '/' . $group['id'],
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'edit' => $groupedit,
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'selected' => $selected,
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'ismember' => in_array($group['id'], $member_of),
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];
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}
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DBA::close($stmt);
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// Don't show the groups on the network page when there is only one
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if ((count($display_groups) <= 2) && ($each == 'network')) {
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return '';
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}
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$tpl = Renderer::getMarkupTemplate('group_side.tpl');
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$o = Renderer::replaceMacros($tpl, [
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'$add' => L10n::t('add'),
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'$title' => L10n::t('Groups'),
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'$groups' => $display_groups,
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'newgroup' => $editmode == 'extended' || $editmode == 'full' ? 1 : '',
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'grouppage' => 'group/',
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'$edittext' => L10n::t('Edit group'),
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'$ungrouped' => $every === 'contact' ? L10n::t('Contacts not in any group') : '',
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'$ungrouped_selected' => (($group_id === 'none') ? 'group-selected' : ''),
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'$createtext' => L10n::t('Create a new group'),
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'$creategroup' => L10n::t('Group Name: '),
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'$editgroupstext' => L10n::t('Edit groups'),
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'$form_security_token' => BaseModule::getFormSecurityToken('group_edit'),
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]);
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return $o;
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}
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}
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