415 lines
10 KiB
PHP
415 lines
10 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\BaseObject;
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use Friendica\Database\DBM;
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use dba;
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require_once 'boot.php';
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require_once 'include/text.php';
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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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/**
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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 $name
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* @return boolean
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*/
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public static function create($uid, $name)
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{
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$return = false;
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if (x($uid) && x($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::select('group', ['deleted'], ['id' => $gid], ['limit' => 1]);
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if (DBM::is_result($group) && $group['deleted']) {
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dba::update('group', ['deleted' => 0], ['gid' => $gid]);
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notice(t('A deleted group with this name was revived. Existing item permissions <strong>may</strong> apply to this group and any future members. If this is not what you intended, please create another group with a different name.') . EOL);
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}
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return true;
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}
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$return = dba::insert('group', ['uid' => $uid, 'name' => $name]);
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}
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return $return;
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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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* @todo Get rid of $uid, the contact id already bears the information
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*
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* @param int $uid
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* @param int $cid
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* @return array
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*/
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private static function getByContactIdForUserId($uid, $cid)
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{
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$condition = ['uid' => $uid, 'contact-id' => $cid];
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$stmt = dba::select('group_member', ['gid'], $condition);
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$return = [];
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while ($group = dba::fetch($stmt)) {
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$return[] = $group['gid'];
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}
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return $return;
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}
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/**
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* @brief count unread group items
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*
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* Count unread items of each groups of the local user
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*
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* @return array
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* 'id' => group id
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* 'name' => group name
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* 'count' => counted unseen group items
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*/
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public static function countUnseen()
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{
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$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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AND `group_member`.`uid` = ?)
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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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local_user()
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);
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return dba::inArray($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 $name
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* @return int|boolean
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*/
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public static function getIdByName($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::select('group', ['id'], ['uid' => $uid, 'name' => $name], ['limit' => 1]);
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if (DBM::is_result($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 type $gid
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* @return boolean
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*/
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public static function remove($gid) {
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if (! $gid) {
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return false;
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}
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// remove group from default posting lists
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$user = dba::select('user', ['def_gid', 'allow_gid', 'deny_gid'], ['uid' => $uid], ['limit' => 1]);
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if (DBM::is_result($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' => $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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* @deprecated Use Group::remove instead
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*
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* @param type $uid
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* @param type $name
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* @return type
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*/
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public static function removeByName($uid, $name) {
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$return = false;
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if (x($uid) && x($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 $cid
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* @return boolean
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*/
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public static function addMember($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 $cid
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* @return boolean
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*/
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public static function removeMember($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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* @deprecated Use Group::removeMember instead
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*
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* @param int $uid
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* @param string $name
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* @param int $cid
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* @return boolean
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*/
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public static function removeMemberByName($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 array $group_ids
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* @param boolean $check_dead
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* @param boolean $use_gcontact
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* @return array
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*/
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public static function expand($group_ids, $check_dead = false, $use_gcontact = false)
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{
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if (!is_array($group_ids) || !count($group_ids)) {
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return [];
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}
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$condition = '`gid` IN (' . substr(str_repeat("?, ", count($group_ids)), 0, -2) . ')';
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if ($use_gcontact) {
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$sql = 'SELECT `gcontact`.`id` AS `contact-id` FROM `group_member`
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INNER JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id`
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INNER JOIN `gcontact` ON `gcontact`.`nurl` = `contact`.`nurl`
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WHERE ' . $condition;
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$param_arr = array_merge([$sql], $group_ids);
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$stmt = call_user_func_array('dba::p', $param_arr);
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} else {
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$condition_array = array_merge([$condition], $group_ids);
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$stmt = dba::select('group_member', ['contact-id'], $condition_array);
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}
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$return = [];
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while($group_member = dba::fetch($stmt)) {
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$return[] = $group_member['contact-id'];
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}
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if ($check_dead && !$use_gcontact) {
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require_once 'include/acl_selectors.php';
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$return = prune_deadguys($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 $label An optional label of the list
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* @return string
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*/
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public static function displayGroupSelection($uid, $gid = 0, $label = '')
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{
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$o = '';
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$stmt = dba::select('group', [], ['deleted' => 0, 'uid' => $uid], ['order' => ['name']]);
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$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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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 == $group['id'] ? 'true' : ''
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];
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}
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logger('groups: ' . print_r($display_groups, true));
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if ($label == '') {
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$label = t('Default privacy group for new contacts');
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}
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$o = replace_macros(get_markup_template('group_selection.tpl'), array(
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'$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 int $group_id
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* @param int $cid
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* @return string
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*/
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public static function sidebarWidget($every = 'contacts', $each = 'group', $editmode = 'standard', $group_id = 0, $cid = 0)
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{
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$o = '';
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if (!local_user()) {
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return '';
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}
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$display_groups = [
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[
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'text' => t('Everybody'),
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'id' => 0,
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'selected' => (($group_id == 0) ? 'group-selected' : ''),
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'href' => $every,
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]
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];
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$stmt = dba::select('group', [], ['deleted' => 0, 'uid' => local_user()], ['order' => ['name']]);
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$member_of = array();
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if ($cid) {
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$member_of = self::getByContactIdForUserId(local_user(), $cid);
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}
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while ($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/' . $group['id'],
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'title' => t('edit'),
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];
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} else {
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$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'], $member_of),
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];
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}
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$tpl = get_markup_template('group_side.tpl');
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$o = replace_macros($tpl, [
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'$add' => t('add'),
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'$title' => 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' => t('Edit group'),
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'$ungrouped' => $every === 'contacts' ? t('Contacts not in any group') : '',
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'$createtext' => t('Create a new group'),
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'$creategroup' => t('Group Name: '),
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'$editgroupstext' => t('Edit groups'),
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'$form_security_token' => get_form_security_token('group_edit'),
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]);
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return $o;
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}
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}
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