gnu-social/classes/User_group.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
defined('GNUSOCIAL') || die();
/**
* Table Definition for user_group
*/
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class User_group extends Managed_DataObject
{
const JOIN_POLICY_OPEN = 0;
const JOIN_POLICY_MODERATE = 1;
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const CACHE_WINDOW = 201;
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $__table = 'user_group'; // table name
public $id; // int(4) primary_key not_null
public $profile_id; // int(4) primary_key not_null
public $nickname; // varchar(64)
public $fullname; // varchar(191) not 255 because utf8mb4 takes more space
public $homepage; // varchar(191) not 255 because utf8mb4 takes more space
public $description; // text
public $location; // varchar(191) not 255 because utf8mb4 takes more space
public $original_logo; // varchar(191) not 255 because utf8mb4 takes more space
public $homepage_logo; // varchar(191) not 255 because utf8mb4 takes more space
public $stream_logo; // varchar(191) not 255 because utf8mb4 takes more space
public $mini_logo; // varchar(191) not 255 because utf8mb4 takes more space
public $created; // datetime()
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
public $uri; // varchar(191) unique_key not 255 because utf8mb4 takes more space
public $mainpage; // varchar(191) not 255 because utf8mb4 takes more space
public $join_policy; // tinyint
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public $force_scope; // tinyint
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
public function getObjectType()
{
return ActivityObject::GROUP;
}
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public static function schemaDef()
{
return array(
'fields' => array(
'id' => array('type' => 'serial', 'not null' => true, 'description' => 'unique identifier'),
'profile_id' => array('type' => 'int', 'not null' => true, 'description' => 'foreign key to profile table'),
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'nickname' => array('type' => 'varchar', 'length' => 64, 'description' => 'nickname for addressing'),
'fullname' => array('type' => 'varchar', 'length' => 191, 'description' => 'display name'),
'homepage' => array('type' => 'varchar', 'length' => 191, 'description' => 'URL, cached so we dont regenerate'),
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'description' => array('type' => 'text', 'description' => 'group description'),
'location' => array('type' => 'varchar', 'length' => 191, 'description' => 'related physical location, if any'),
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'original_logo' => array('type' => 'varchar', 'length' => 191, 'description' => 'original size logo'),
'homepage_logo' => array('type' => 'varchar', 'length' => 191, 'description' => 'homepage (profile) size logo'),
'stream_logo' => array('type' => 'varchar', 'length' => 191, 'description' => 'stream-sized logo'),
'mini_logo' => array('type' => 'varchar', 'length' => 191, 'description' => 'mini logo'),
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'created' => array('type' => 'datetime', 'description' => 'date this record was created'),
'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
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'uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'universal identifier'),
'mainpage' => array('type' => 'varchar', 'length' => 191, 'description' => 'page for group info to link to'),
'join_policy' => array('type' => 'int', 'size' => 'tiny', 'description' => '0=open; 1=requires admin approval'),
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'force_scope' => array('type' => 'int', 'size' => 'tiny', 'description' => '0=never,1=sometimes,-1=always'),
),
'primary key' => array('id'),
'unique keys' => array(
'user_group_uri_key' => array('uri'),
// when it's safe and everyone's run upgrade.php 'user_profile_id_key' => array('profile_id'),
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),
'foreign keys' => array(
'user_group_id_fkey' => array('profile', array('profile_id' => 'id')),
),
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'indexes' => array(
'user_group_nickname_idx' => array('nickname'),
'user_group_profile_id_idx' => array('profile_id'), //make this unique in future
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),
);
}
protected $_profile = array();
/**
* @return Profile
*
* @throws GroupNoProfileException if user has no profile
*/
public function getProfile()
{
if (!isset($this->_profile[$this->profile_id])) {
$profile = Profile::getKV('id', $this->profile_id);
if (!$profile instanceof Profile) {
throw new GroupNoProfileException($this);
}
$this->_profile[$this->profile_id] = $profile;
}
return $this->_profile[$this->profile_id];
}
public function getNickname()
{
return $this->getProfile()->getNickname();
}
public function getFullname()
{
return $this->getProfile()->getFullname();
}
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public static function defaultLogo($size)
{
static $sizenames = array(AVATAR_PROFILE_SIZE => 'profile',
AVATAR_STREAM_SIZE => 'stream',
AVATAR_MINI_SIZE => 'mini');
return Theme::path('default-avatar-'.$sizenames[$size].'.png');
}
public function homeUrl()
{
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return $this->getProfile()->getUrl();
}
public function getUri()
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{
$uri = null;
if (Event::handle('StartUserGroupGetUri', array($this, &$uri))) {
if (!empty($this->uri)) {
$uri = $this->uri;
} elseif ($this->isLocal()) {
$uri = common_local_url('groupbyid', ['id' => $this->id]);
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}
}
Event::handle('EndUserGroupGetUri', array($this, &$uri));
return $uri;
}
public function permalink()
{
$url = null;
if (Event::handle('StartUserGroupPermalink', array($this, &$url))) {
if ($this->isLocal()) {
$url = common_local_url('groupbyid', ['id' => $this->id]);
}
}
Event::handle('EndUserGroupPermalink', array($this, &$url));
return $url;
}
public function getNotices($offset, $limit, $since_id = null, $max_id = null)
{
// FIXME: Get the Profile::current() some other way, to avoid
// possible confusion between current session and queue process.
$stream = new GroupNoticeStream($this, Profile::current());
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return $stream->getNotices($offset, $limit, $since_id, $max_id);
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}
public function getMembers($offset = 0, $limit = null)
{
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$ids = null;
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if (is_null($limit) || $offset + $limit > User_group::CACHE_WINDOW) {
$ids = $this->getMemberIDs($offset, $limit);
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} else {
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$key = sprintf('group:member_ids:%d', $this->id);
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$window = self::cacheGet($key);
if ($window === false) {
$window = $this->getMemberIDs(0, User_group::CACHE_WINDOW);
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self::cacheSet($key, $window);
}
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$ids = array_slice($window, $offset, $limit);
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}
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return Profile::multiGet('id', $ids);
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}
public function getMemberIDs($offset = 0, $limit = null)
{
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$gm = new Group_member();
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$gm->selectAdd();
$gm->selectAdd('profile_id');
$gm->group_id = $this->id;
$gm->orderBy('created DESC');
if (!is_null($limit)) {
$gm->limit($offset, $limit);
}
$ids = array();
if ($gm->find()) {
while ($gm->fetch()) {
$ids[] = $gm->profile_id;
}
}
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return $ids;
}
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/**
* Get pending members, who have not yet been approved.
*
* @param int $offset
* @param int $limit
* @return Profile
*/
public function getRequests($offset = 0, $limit = null)
{
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$rq = new Group_join_queue();
$rq->group_id = $this->id;
$members = new Profile();
$members->joinAdd(['id', $rq, 'profile_id']);
if ($limit != null) {
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$members->limit($offset, $limit);
}
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$members->find();
return $members;
}
public function getAdminCount()
{
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$block = new Group_member();
$block->group_id = $this->id;
$block->is_admin = true;
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return $block->count();
}
public function getMemberCount()
{
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$key = sprintf("group:member_count:%d", $this->id);
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$cnt = self::cacheGet($key);
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if (is_integer($cnt)) {
return (int) $cnt;
}
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$mem = new Group_member();
$mem->group_id = $this->id;
// XXX: why 'distinct'?
$cnt = (int) $mem->count('distinct profile_id');
self::cacheSet($key, $cnt);
return $cnt;
}
public function getBlockedCount()
{
// XXX: WORM cache this
$block = new Group_block();
$block->group_id = $this->id;
return $block->count();
}
public function getQueueCount()
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{
// XXX: WORM cache this
$queue = new Group_join_queue();
$queue->group_id = $this->id;
return $queue->count();
}
// offset is null because DataObject wants it, 0 would mean no results
public function getAdmins($offset = null, $limit = null)
{
$admins = new Profile();
$admins->joinAdd(['id', 'group_member:profile_id']);
$admins->whereAdd(sprintf(
'group_member.group_id = %d AND group_member.is_admin IS TRUE',
$this->getID()
));
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$admins->orderBy('group_member.modified ASC');
$admins->limit($offset, $limit);
$admins->find();
return $admins;
}
// offset is null because DataObject wants it, 0 would mean no results
public function getBlocked($offset = null, $limit = null)
{
$blocked = new Profile();
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$blocked->joinAdd(array('id', 'group_block:blocked'));
$blocked->whereAdd(sprintf('group_block.group_id = %u', $this->id));
$blocked->orderBy('group_block.modified DESC');
$blocked->limit($offset, $limit);
$blocked->find();
return $blocked;
}
public function setOriginal($filename)
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{
// This should be handled by the Profile->setOriginal function so user and group avatars are handled the same
$imagefile = new ImageFile(null, Avatar::path($filename));
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$sizes = array('homepage_logo' => AVATAR_PROFILE_SIZE,
'stream_logo' => AVATAR_STREAM_SIZE,
'mini_logo' => AVATAR_MINI_SIZE);
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$orig = clone($this);
$this->original_logo = Avatar::url($filename);
foreach ($sizes as $name=>$size) {
$filename = Avatar::filename(
$this->profile_id,
image_type_to_extension($imagefile->preferredType()),
$size,
common_timestamp()
);
$imagefile->resizeTo(Avatar::path($filename), array('width'=>$size, 'height'=>$size));
$this->$name = Avatar::url($filename);
}
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common_debug(common_log_objstring($this));
return $this->update($orig);
}
public function getBestName()
{
return ($this->fullname) ? $this->fullname : $this->nickname;
}
/**
* Gets the full name (if filled) with nickname as a parenthetical, or the nickname alone
* if no fullname is provided.
*
* @return string
*/
public function getFancyName()
{
if ($this->fullname) {
// TRANS: Full name of a profile or group followed by nickname in parens
return sprintf(_m('FANCYNAME', '%1$s (%2$s)'), $this->fullname, $this->nickname);
} else {
return $this->nickname;
}
}
public function getAliases()
{
$aliases = array();
// XXX: cache this
$alias = new Group_alias();
$alias->group_id = $this->id;
if ($alias->find()) {
while ($alias->fetch()) {
$aliases[] = $alias->alias;
}
}
$alias->free();
return $aliases;
}
public function setAliases($newaliases)
{
$newaliases = array_unique($newaliases);
$oldaliases = $this->getAliases();
// Delete stuff that's old that not in new
$to_delete = array_diff($oldaliases, $newaliases);
// Insert stuff that's in new and not in old
$to_insert = array_diff($newaliases, $oldaliases);
$alias = new Group_alias();
$alias->group_id = $this->id;
foreach ($to_delete as $delalias) {
$alias->alias = $delalias;
$result = $alias->delete();
if (!$result) {
common_log_db_error($alias, 'DELETE', __FILE__);
return false;
}
}
foreach ($to_insert as $insalias) {
if ($insalias === $this->nickname) {
continue;
}
$alias->alias = Nickname::normalize($insalias, true);
$result = $alias->insert();
if (!$result) {
common_log_db_error($alias, 'INSERT', __FILE__);
return false;
}
}
return true;
}
public static function getForNickname($nickname, Profile $profile = null)
{
$nickname = Nickname::normalize($nickname);
// Are there any matching remote groups this profile's in?
if ($profile instanceof Profile) {
$group = $profile->getGroups(0, null);
while ($group instanceof User_group && $group->fetch()) {
if ($group->nickname == $nickname) {
// @fixme is this the best way?
return clone($group);
}
}
}
// If not, check local groups.
$group = Local_group::getKV('nickname', $nickname);
if ($group instanceof Local_group) {
return User_group::getKV('id', $group->group_id);
}
$alias = Group_alias::getKV('alias', $nickname);
if ($alias instanceof Group_alias) {
return User_group::getKV('id', $alias->group_id);
}
return null;
}
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public function getUserMembers()
{
// XXX: cache this
$user = new User();
$user->query(sprintf(
'SELECT id FROM %1$s INNER JOIN group_member ' .
'ON %1$s.id = group_member.profile_id ' .
'WHERE group_member.group_id = %2$d ',
$user->escapedTableName(),
$this->id
));
$ids = [];
while ($user->fetch()) {
$ids[] = $user->id;
}
$user->free();
return $ids;
}
public static function maxDescription()
{
$desclimit = common_config('group', 'desclimit');
// null => use global limit (distinct from 0!)
if (is_null($desclimit)) {
$desclimit = common_config('site', 'textlimit');
}
return $desclimit;
}
public static function descriptionTooLong($desc)
{
$desclimit = self::maxDescription();
return ($desclimit > 0 && !empty($desc) && (mb_strlen($desc) > $desclimit));
}
public function asAtomEntry($namespace = false, $source = false)
{
$xs = new XMLStringer(true);
if ($namespace) {
$attrs = array('xmlns' => 'http://www.w3.org/2005/Atom',
'xmlns:thr' => 'http://purl.org/syndication/thread/1.0');
} else {
$attrs = array();
}
$xs->elementStart('entry', $attrs);
if ($source) {
$xs->elementStart('source');
$xs->element('id', null, $this->permalink());
$xs->element('title', null, $profile->nickname . " - " . common_config('site', 'name'));
$xs->element('link', array('href' => $this->permalink()));
$xs->element('updated', null, $this->modified);
$xs->elementEnd('source');
}
$xs->element('title', null, $this->nickname);
$xs->element('summary', null, common_xml_safe_str($this->description));
$xs->element('link', array('rel' => 'alternate',
'href' => $this->permalink()));
$xs->element('id', null, $this->permalink());
$xs->element('published', null, common_date_w3dtf($this->created));
$xs->element('updated', null, common_date_w3dtf($this->modified));
$xs->element(
'content',
array('type' => 'html'),
common_xml_safe_str($this->description)
);
$xs->elementEnd('entry');
return $xs->getString();
}
public function asAtomAuthor()
{
$xs = new XMLStringer(true);
$xs->elementStart('author');
$xs->element('name', null, $this->nickname);
$xs->element('uri', null, $this->permalink());
$xs->elementEnd('author');
return $xs->getString();
}
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/**
* Returns an XML string fragment with group information as an
* Activity Streams noun object with the given element type.
*
* Assumes that 'activity', 'georss', and 'poco' namespace has been
* previously defined.
*
* @param string $element one of 'actor', 'subject', 'object', 'target'
*
* @return string
*/
public function asActivityNoun($element)
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{
$noun = ActivityObject::fromGroup($this);
return $noun->asString('activity:' . $element);
}
public function getAvatar()
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{
return empty($this->homepage_logo)
? User_group::defaultLogo(AVATAR_PROFILE_SIZE)
: $this->homepage_logo;
}
public static function register($fields)
{
if (!empty($fields['userid'])) {
$profile = Profile::getKV('id', $fields['userid']);
if ($profile && !$profile->hasRight(Right::CREATEGROUP)) {
common_log(LOG_WARNING, "Attempted group creation from banned user: " . $profile->nickname);
// TRANS: Client exception thrown when a user tries to create a group while banned.
throw new ClientException(_('You are not allowed to create groups on this site.'), 403);
}
}
$fields['nickname'] = Nickname::normalize($fields['nickname']);
// MAGICALLY put fields into current scope
// @fixme kill extract(); it makes debugging absurdly hard
$defaults = [
'nickname' => null,
'fullname' => null,
'homepage' => null,
'description' => null,
'location' => null,
'uri' => null,
'mainpage' => null,
'aliases' => [],
'userid' => null,
];
$fields = array_merge($defaults, $fields);
extract($fields);
$group = new User_group();
if (empty($uri)) {
// fill in later...
$uri = null;
}
if (empty($mainpage)) {
$mainpage = common_local_url('showgroup', array('nickname' => $nickname));
}
// We must create a new, incrementally assigned profile_id
$profile = new Profile();
$profile->nickname = $nickname;
$profile->fullname = $fullname;
$profile->profileurl = $mainpage;
$profile->homepage = $homepage;
$profile->bio = $description;
$profile->location = $location;
$profile->created = common_sql_now();
$group->nickname = $profile->nickname;
$group->fullname = $profile->fullname;
$group->homepage = $profile->homepage;
$group->description = $profile->bio;
$group->location = $profile->location;
$group->mainpage = $profile->profileurl;
$group->created = $profile->created;
$profile->query('START TRANSACTION');
$id = $profile->insert();
if ($id === false) {
$profile->query('ROLLBACK');
throw new ServerException(_('Profile insertion failed'));
}
$group->profile_id = $id;
$group->uri = $uri;
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if (isset($fields['join_policy'])) {
$group->join_policy = intval($fields['join_policy']);
} else {
$group->join_policy = 0;
}
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if (isset($fields['force_scope'])) {
$group->force_scope = intval($fields['force_scope']);
} else {
$group->force_scope = 0;
}
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if (Event::handle('StartGroupSave', array(&$group))) {
$result = $group->insert();
if ($result === false) {
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common_log_db_error($group, 'INSERT', __FILE__);
// TRANS: Server exception thrown when creating a group failed.
throw new ServerException(_('Could not create group.'));
}
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if (!isset($uri) || empty($uri)) {
$orig = clone($group);
$group->uri = common_local_url('groupbyid', array('id' => $group->id));
$result = $group->update($orig);
if (!$result) {
common_log_db_error($group, 'UPDATE', __FILE__);
// TRANS: Server exception thrown when updating a group URI failed.
throw new ServerException(_('Could not set group URI.'));
}
}
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$result = $group->setAliases($aliases);
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if (!$result) {
// TRANS: Server exception thrown when creating group aliases failed.
throw new ServerException(_('Could not create aliases.'));
}
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$member = new Group_member();
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$member->group_id = $group->id;
$member->profile_id = $userid;
$member->is_admin = true;
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$member->created = $group->created;
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$result = $member->insert();
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if (!$result) {
common_log_db_error($member, 'INSERT', __FILE__);
// TRANS: Server exception thrown when setting group membership failed.
throw new ServerException(_('Could not set group membership.'));
}
self::blow('profile:groups:%d', $userid);
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if ($local) {
$local_group = new Local_group();
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$local_group->group_id = $group->id;
$local_group->nickname = $nickname;
$local_group->created = common_sql_now();
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$result = $local_group->insert();
if (!$result) {
common_log_db_error($local_group, 'INSERT', __FILE__);
// TRANS: Server exception thrown when saving local group information failed.
throw new ServerException(_('Could not save local group info.'));
}
}
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Event::handle('EndGroupSave', array($group));
}
$profile->query('COMMIT');
return $group;
}
/**
* Handle cascading deletion, on the model of notice and profile.
*
* This should handle freeing up cached entries for the group's
* id, nickname, URI, and aliases. There may be other areas that
* are not de-cached in the UI, including the sidebar lists on
* GroupsAction
*/
public function delete($useWhere = false)
{
if (empty($this->id)) {
common_log(LOG_WARNING, "Ambiguous User_group->delete(); skipping related tables.");
return parent::delete($useWhere);
}
try {
$profile = $this->getProfile();
$profile->delete();
} catch (GroupNoProfileException $unp) {
common_log(LOG_INFO, "Group {$this->nickname} has no profile; continuing deletion.");
}
// Safe to delete in bulk for now
$related = array('Group_inbox',
'Group_block',
'Group_member',
'Related_group');
Event::handle('UserGroupDeleteRelated', array($this, &$related));
foreach ($related as $cls) {
$inst = new $cls();
$inst->group_id = $this->id;
if ($inst->find()) {
while ($inst->fetch()) {
$dup = clone($inst);
$dup->delete();
}
}
}
// And related groups in the other direction...
$inst = new Related_group();
$inst->related_group_id = $this->id;
$inst->delete();
// Aliases and the local_group entry need to be cleared explicitly
// or we'll miss clearing some cache keys; that can make it hard
// to create a new group with one of those names or aliases.
$this->setAliases(array());
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// $this->isLocal() but we're using the resulting object
$local = Local_group::getKV('group_id', $this->id);
if ($local instanceof Local_group) {
$local->delete();
}
// blow the cached ids
self::blow('user_group:notice_ids:%d', $this->id);
return parent::delete($useWhere);
}
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public function update($dataObject=false)
{
// Whenever the User_group is updated, find the Local_group
// and update its nickname too.
if ($this->nickname != $dataObject->nickname) {
$local = Local_group::getKV('group_id', $this->id);
if ($local instanceof Local_group) {
common_debug("Updating Local_group ({$this->id}) nickname from {$dataObject->nickname} to {$this->nickname}");
$local->setNickname($this->nickname);
}
}
// Also make sure the Profile table is up to date!
$fields = array(/*group field => profile field*/
'nickname' => 'nickname',
'fullname' => 'fullname',
'mainpage' => 'profileurl',
'homepage' => 'homepage',
'description' => 'bio',
'location' => 'location',
'created' => 'created',
'modified' => 'modified',
);
$profile = $this->getProfile();
$origpro = clone($profile);
foreach ($fields as $gf=>$pf) {
$profile->$pf = $this->$gf;
}
if ($profile->update($origpro) === false) {
throw new ServerException(_('Unable to update profile'));
}
return parent::update($dataObject);
}
public function isPrivate()
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{
return ($this->join_policy == self::JOIN_POLICY_MODERATE &&
intval($this->force_scope) === 1);
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}
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public function isLocal()
{
$local = Local_group::getKV('group_id', $this->id);
return ($local instanceof Local_group);
}
public static function groupsFromText($text, Profile $profile)
{
$groups = array();
/* extract all !group */
$count = preg_match_all(
'/(?:^|\s)!(' . Nickname::DISPLAY_FMT . ')/',
strtolower($text),
$match
);
if (!$count) {
return $groups;
}
foreach (array_unique($match[1]) as $nickname) {
$group = self::getForNickname($nickname, $profile);
if ($group instanceof User_group && $profile->isMember($group)) {
$groups[] = clone($group);
}
}
return $groups;
}
public static function idsFromText($text, Profile $profile)
{
$ids = array();
$groups = self::groupsFromText($text, $profile);
foreach ($groups as $group) {
$ids[$group->id] = true;
}
return array_keys($ids);
}
}