gnu-social/classes/Profile_tag.php
Alexei Sorokin 9a515b9234 [SCHEMA] Improve timestamp storage
Avoid the use of deprecated MariaDB "zero dates" globally. If they're present
as attribute defaults somewhere, they will be replaced with NULL implicitly.
The existing "zero dates" in MariaDB storage will be left intact and this
should not present any issues.

The "timestamp" type in table definitions now corresponds to DATETIME in
MariaDB with "DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP", which
should be close enough to the original behaviour for compatibility purposes.
It is now the recommended type for "modified" attributes, because of the
update trigger on MariaDB. But there is no such trigger implemented on
PostgreSQL as of this moment.
2020-06-29 01:41:46 +03:00

362 lines
12 KiB
PHP

<?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 profile_tag
*/
class Profile_tag extends Managed_DataObject
{
public $__table = 'profile_tag'; // table name
public $tagger; // int(4) primary_key not_null
public $tagged; // int(4) primary_key not_null
public $tag; // varchar(64) primary_key not_null
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
public static function schemaDef()
{
return array(
'fields' => array(
'tagger' => array('type' => 'int', 'not null' => true, 'description' => 'user making the tag'),
'tagged' => array('type' => 'int', 'not null' => true, 'description' => 'profile tagged'),
'tag' => array('type' => 'varchar', 'length' => 64, 'not null' => true, 'description' => 'hash tag associated with this notice'),
'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date the tag was added'),
),
'primary key' => array('tagger', 'tagged', 'tag'),
'foreign keys' => array(
'profile_tag_tagger_fkey' => array('profile', array('tagger' => 'id')),
'profile_tag_tagged_fkey' => array('profile', array('tagged' => 'id')),
),
'indexes' => array(
'profile_tag_modified_idx' => array('modified'),
'profile_tag_tagger_tag_idx' => array('tagger', 'tag'),
'profile_tag_tagged_idx' => array('tagged'),
),
);
}
public function links()
{
return array('tagger,tag' => 'profile_list:tagger,tag');
}
public function getMeta()
{
return Profile_list::pkeyGet(array('tagger' => $this->tagger, 'tag' => $this->tag));
}
public static function getSelfTagsArray(Profile $target)
{
return self::getTagsArray($target->getID(), $target->getID(), $target);
}
public static function setSelfTags(Profile $target, array $newtags, array $privacy = [])
{
return self::setTags($target->getID(), $target->getID(), $newtags, $privacy);
}
public static function getTags($tagger, $tagged, $auth_user = null)
{
$profile_list = new Profile_list();
$include_priv = 1;
if (!($auth_user instanceof User ||
$auth_user instanceof Profile) ||
($auth_user->id !== $tagger)) {
$profile_list->private = false;
$include_priv = 0;
}
$key = sprintf('profile_tag:tagger_tagged_privacy:%d-%d-%d', $tagger, $tagged, $include_priv);
$tags = Profile_list::getCached($key);
if ($tags !== false) {
return $tags;
}
$qry = 'select profile_list.* from profile_list left join '.
'profile_tag on (profile_list.tag = profile_tag.tag and '.
'profile_list.tagger = profile_tag.tagger) where '.
'profile_tag.tagger = %d and profile_tag.tagged = %d ';
$qry = sprintf($qry, $tagger, $tagged);
if (!$include_priv) {
$qry .= ' AND profile_list.private = FALSE';
}
$profile_list->query($qry);
Profile_list::setCache($key, $profile_list);
return $profile_list;
}
public static function getTagsArray($tagger, $tagged, Profile $scoped = null)
{
$ptag = new Profile_tag();
$qry = sprintf(
'SELECT profile_tag.tag '.
'FROM profile_tag INNER JOIN profile_list '.
' ON (profile_tag.tagger = profile_list.tagger ' .
' and profile_tag.tag = profile_list.tag) ' .
'WHERE profile_tag.tagger = %d ' .
'AND profile_tag.tagged = %d ',
$tagger,
$tagged
);
if (!$scoped instanceof Profile || $scoped->getID() !== $tagger) {
$qry .= 'AND profile_list.private = FALSE';
}
$tags = array();
$ptag->query($qry);
while ($ptag->fetch()) {
$tags[] = $ptag->tag;
}
return $tags;
}
public static function setTags($tagger, $tagged, array $newtags, array $privacy = [])
{
$newtags = array_unique($newtags);
$oldtags = self::getTagsArray($tagger, $tagged, Profile::getByID($tagger));
$ptag = new Profile_tag();
// Delete stuff that's in old and not in new
$to_delete = array_diff($oldtags, $newtags);
// Insert stuff that's in new and not in old
$to_insert = array_diff($newtags, $oldtags);
foreach ($to_delete as $deltag) {
self::unTag($tagger, $tagged, $deltag);
}
foreach ($to_insert as $instag) {
$private = isset($privacy[$instag]) ? $privacy[$instag] : false;
self::setTag($tagger, $tagged, $instag, null, $private);
}
return true;
}
# set a single tag
public static function setTag($tagger, $tagged, $tag, $desc=null, $private = false)
{
$ptag = Profile_tag::pkeyGet(array('tagger' => $tagger,
'tagged' => $tagged,
'tag' => $tag));
# if tag already exists, return it
if ($ptag instanceof Profile_tag) {
return $ptag;
}
$tagger_profile = Profile::getByID($tagger);
$tagged_profile = Profile::getByID($tagged);
if (Event::handle('StartTagProfile', array($tagger_profile, $tagged_profile, $tag))) {
if (!$tagger_profile->canTag($tagged_profile)) {
// TRANS: Client exception thrown trying to set a tag for a user that cannot be tagged.
throw new ClientException(_('You cannot tag this user.'));
}
$tags = new Profile_list();
$tags->tagger = $tagger;
$count = (int) $tags->count('distinct tag');
if ($count >= common_config('peopletag', 'maxtags')) {
// TRANS: Client exception thrown trying to set more tags than allowed.
throw new ClientException(sprintf(
_('You already have created %d or more tags ' .
'which is the maximum allowed number of tags. ' .
'Try using or deleting some existing tags.'),
common_config('peopletag', 'maxtags')
));
}
$plist = new Profile_list();
$plist->query('START TRANSACTION');
$profile_list = Profile_list::ensureTag($tagger, $tag, $desc, $private);
if ($profile_list->taggedCount() >= common_config('peopletag', 'maxpeople')) {
// TRANS: Client exception thrown when trying to add more people than allowed to a list.
throw new ClientException(sprintf(
_('You already have %1$d or more people in list %2$s, ' .
'which is the maximum allowed number. ' .
'Try unlisting others first.'),
common_config('peopletag', 'maxpeople'),
$tag
));
}
$newtag = new Profile_tag();
$newtag->tagger = $tagger;
$newtag->tagged = $tagged;
$newtag->tag = $tag;
$result = $newtag->insert();
if (!$result) {
common_log_db_error($newtag, 'INSERT', __FILE__);
$plist->query('ROLLBACK');
return false;
}
try {
$plist->query('COMMIT');
Event::handle('EndTagProfile', array($newtag));
} catch (Exception $e) {
$newtag->delete();
$profile_list->delete();
throw $e;
}
$profile_list->taggedCount(true);
self::blowCaches($tagger, $tagged);
}
return $newtag;
}
public static function unTag($tagger, $tagged, $tag)
{
$ptag = Profile_tag::pkeyGet(array('tagger' => $tagger,
'tagged' => $tagged,
'tag' => $tag));
if (!$ptag) {
return true;
}
if (Event::handle('StartUntagProfile', array($ptag))) {
$orig = clone($ptag);
$result = $ptag->delete();
if ($result === false) {
common_log_db_error($this, 'DELETE', __FILE__);
return false;
}
Event::handle('EndUntagProfile', array($orig));
$profile_list = Profile_list::pkeyGet(array('tag' => $tag, 'tagger' => $tagger));
if (!empty($profile_list)) {
$profile_list->taggedCount(true);
}
self::blowCaches($tagger, $tagged);
return true;
}
}
// @fixme: move this to Profile_list?
public static function cleanup($profile_list)
{
$ptag = new Profile_tag();
$ptag->tagger = $profile_list->tagger;
$ptag->tag = $profile_list->tag;
$ptag->find();
while ($ptag->fetch()) {
if (Event::handle('StartUntagProfile', array($ptag))) {
$orig = clone($ptag);
$result = $ptag->delete();
if (!$result) {
common_log_db_error($this, 'DELETE', __FILE__);
}
Event::handle('EndUntagProfile', array($orig));
}
}
}
// move a tag!
public static function moveTag($orig, $new)
{
$tags = new Profile_tag();
$qry = "UPDATE profile_tag SET tag = '%s', tagger = '%s' " .
"WHERE tag = '%s' AND tagger = '%s'";
$result = $tags->query(sprintf(
$qry,
$tags->escape($new->tag),
$tags->escape($new->tagger),
$tags->escape($orig->tag),
$tags->escape($orig->tagger)
));
if ($result === false) {
common_log_db_error($tags, 'UPDATE', __FILE__);
throw new Exception('Could not move Profile_tag, see db log for details.');
}
return $result;
}
public static function blowCaches($tagger, $tagged)
{
foreach (array(0, 1) as $perm) {
self::blow(sprintf('profile_tag:tagger_tagged_privacy:%d-%d-%d', $tagger, $tagged, $perm));
}
return true;
}
// Return profiles with a given tag
public static function getTagged($tagger, $tag)
{
$profile = new Profile();
$profile->query('SELECT profile.* ' .
'FROM profile JOIN profile_tag ' .
'ON profile.id = profile_tag.tagged ' .
'WHERE profile_tag.tagger = ' . $profile->escape($tagger) . ' ' .
"AND profile_tag.tag = '" . $profile->escape($tag) . "' ");
$tagged = [];
while ($profile->fetch()) {
$tagged[] = clone($profile);
}
return true;
}
public function insert()
{
$result = parent::insert();
if ($result) {
self::blow(
'profile_list:tagged_count:%d:%s',
$this->tagger,
$this->tag
);
}
return $result;
}
public function delete($useWhere = false)
{
$result = parent::delete($useWhere);
if ($result !== false) {
self::blow(
'profile_list:tagged_count:%d:%s',
$this->tagger,
$this->tag
);
}
return $result;
}
}