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<?php
/*
Question2Answer by Gideon Greenspan and contributors
http://www.question2answer.org/
File: qa-include/qa-db-post-update.php
Description: Database functions for changing a question, answer or comment
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
More about this license: http://www.question2answer.org/license.php
*/
if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
header('Location: ../');
exit;
}
require_once QA_INCLUDE_DIR.'app/updates.php';
function qa_db_post_set_selchildid($questionid, $selchildid, $lastuserid=null, $lastip=null)
/*
Update the selected answer in the database for $questionid to $selchildid, and optionally record that $lastuserid did it from $lastip
*/
{
qa_db_query_sub(
"UPDATE ^posts AS x, (SELECT selchildid FROM ^posts WHERE postid=#) AS a ".
"SET x.updated=NULL, x.updatetype=NULL, x.lastuserid=NULL, x.lastip=NULL WHERE ". // if previous answer's last edit was to be selected, remove that
"x.postid=a.selchildid AND x.updatetype=$",
$questionid, QA_UPDATE_SELECTED
);
qa_db_query_sub(
'UPDATE ^posts SET selchildid=# WHERE postid=#',
$selchildid, $questionid
);
if (isset($selchildid) && isset($lastuserid) && isset($lastip))
qa_db_query_sub(
"UPDATE ^posts SET updated=NOW(), updatetype=$, lastuserid=$, lastip=INET_ATON($) WHERE postid=#",
QA_UPDATE_SELECTED, $lastuserid, $lastip, $selchildid
);
}
function qa_db_post_set_closed($questionid, $closedbyid, $lastuserid=null, $lastip=null)
/*
Set $questionid to be closed by post $closedbyid (null if not closed) in the database, and optionally record that
$lastuserid did it from $lastip
*/
{
if (isset($lastuserid) || isset($lastip)) {
qa_db_query_sub(
"UPDATE ^posts SET closedbyid=#, updated=NOW(), updatetype=$, lastuserid=$, lastip=INET_ATON($) WHERE postid=#",
$closedbyid, QA_UPDATE_CLOSED, $lastuserid, $lastip, $questionid
);
} else
qa_db_query_sub(
'UPDATE ^posts SET closedbyid=# WHERE postid=#',
$closedbyid, $questionid
);
}
function qa_db_post_set_type($postid, $type, $lastuserid=null, $lastip=null, $updatetype=QA_UPDATE_TYPE)
/*
Set the type in the database of $postid to $type, and optionally record that $lastuserid did it from $lastip
*/
{
if (isset($lastuserid) || isset($lastip)) {
qa_db_query_sub(
'UPDATE ^posts SET type=$, updated=NOW(), updatetype=$, lastuserid=$, lastip=INET_ATON($) WHERE postid=#',
$type, $updatetype, $lastuserid, $lastip, $postid
);
} else
qa_db_query_sub(
'UPDATE ^posts SET type=$ WHERE postid=#',
$type, $postid
);
}
function qa_db_post_set_parent($postid, $parentid, $lastuserid=null, $lastip=null)
/*
Set the parent in the database of $postid to $parentid, and optionally record that $lastuserid did it from $lastip (if at least one is specified)
*/
{
if (isset($lastuserid) || isset($lastip))
qa_db_query_sub(
"UPDATE ^posts SET parentid=#, updated=NOW(), updatetype=$, lastuserid=$, lastip=INET_ATON($) WHERE postid=#",
$parentid, QA_UPDATE_PARENT, $lastuserid, $lastip, $postid
);
else
qa_db_query_sub(
'UPDATE ^posts SET parentid=# WHERE postid=#',
$parentid, $postid
);
}
function qa_db_post_set_content($postid, $title, $content, $format, $tagstring, $notify, $lastuserid=null, $lastip=null, $updatetype=QA_UPDATE_CONTENT, $name=null)
/*
Set the text fields in the database of $postid to $title, $content, $tagstring, $notify and $name, and record that
$lastuserid did it from $lastip (if at least one is specified) with $updatetype. For backwards compatibility if $name
is null then the name will not be changed.
*/
{
if (isset($lastuserid) || isset($lastip)) // use COALESCE() for name since $name=null means it should not be modified (for backwards compatibility)
qa_db_query_sub(
'UPDATE ^posts SET title=$, content=$, format=$, tags=$, name=COALESCE($, name), notify=$, updated=NOW(), updatetype=$, lastuserid=$, lastip=INET_ATON($) WHERE postid=#',
$title, $content, $format, $tagstring, $name, $notify, $updatetype, $lastuserid, $lastip, $postid
);
else
qa_db_query_sub(
'UPDATE ^posts SET title=$, content=$, format=$, tags=$, name=COALESCE($, name), notify=$ WHERE postid=#',
$title, $content, $format, $tagstring, $name, $notify, $postid
);
}
function qa_db_post_set_userid($postid, $userid)
/*
Set the author in the database of $postid to $userid, and set the lastuserid to $userid as well if appropriate
*/
{
qa_db_query_sub(
'UPDATE ^posts SET userid=$, lastuserid=IF(updated IS NULL, lastuserid, COALESCE(lastuserid,$)) WHERE postid=#',
$userid, $userid, $postid
);
}
function qa_db_post_set_category($postid, $categoryid, $lastuserid=null, $lastip=null)
/*
Set the (exact) category in the database of $postid to $categoryid, and optionally record that $lastuserid did it from $lastip (if at least one is specified)
*/
{
if (isset($lastuserid) || isset($lastip))
qa_db_query_sub(
"UPDATE ^posts SET categoryid=#, updated=NOW(), updatetype=$, lastuserid=$, lastip=INET_ATON($) WHERE postid=#",
$categoryid, QA_UPDATE_CATEGORY, $lastuserid, $lastip, $postid
);
else
qa_db_query_sub(
'UPDATE ^posts SET categoryid=# WHERE postid=#',
$categoryid, $postid
);
}
function qa_db_posts_set_category_path($postids, $path)
/*
Set the category path in the database of each of $postids to $path retrieved via qa_db_post_get_category_path()
*/
{
if (count($postids))
qa_db_query_sub(
'UPDATE ^posts SET categoryid=#, catidpath1=#, catidpath2=#, catidpath3=# WHERE postid IN (#)',
$path['categoryid'], $path['catidpath1'], $path['catidpath2'], $path['catidpath3'], $postids
); // requires QA_CATEGORY_DEPTH=4
}
function qa_db_post_set_created($postid, $created)
/*
Set the created date of $postid to $created, which is a unix timestamp. If created is null, set to now.
*/
{
if (isset($created))
qa_db_query_sub(
'UPDATE ^posts SET created=FROM_UNIXTIME(#) WHERE postid=#',
$created, $postid
);
else
qa_db_query_sub(
'UPDATE ^posts SET created=NOW() WHERE postid=#',
$postid
);
}
function qa_db_post_set_updated($postid, $updated)
/*
Set the last updated date of $postid to $updated, which is a unix timestamp. If updated is nul, set to now.
*/
{
if (isset($updated))
qa_db_query_sub(
'UPDATE ^posts SET updated=FROM_UNIXTIME(#) WHERE postid=#',
$updated, $postid
);
else
qa_db_query_sub(
'UPDATE ^posts SET updated=NOW() WHERE postid=#',
$postid
);
}
function qa_db_post_delete($postid)
/*
Deletes post $postid from the database (will also delete any votes on the post due to foreign key cascading)
*/
{
qa_db_query_sub(
'DELETE FROM ^posts WHERE postid=#',
$postid
);
}
function qa_db_titlewords_get_post_wordids($postid)
/*
Return an array of wordids that were indexed in the database for the title of $postid
*/
{
return qa_db_read_all_values(qa_db_query_sub(
'SELECT wordid FROM ^titlewords WHERE postid=#',
$postid
));
}
function qa_db_titlewords_delete_post($postid)
/*
Remove all entries in the database index of title words for $postid
*/
{
qa_db_query_sub(
'DELETE FROM ^titlewords WHERE postid=#',
$postid
);
}
function qa_db_contentwords_get_post_wordids($postid)
/*
Return an array of wordids that were indexed in the database for the content of $postid
*/
{
return qa_db_read_all_values(qa_db_query_sub(
'SELECT wordid FROM ^contentwords WHERE postid=#',
$postid
));
}
function qa_db_contentwords_delete_post($postid)
/*
Remove all entries in the database index of content words for $postid
*/
{
qa_db_query_sub(
'DELETE FROM ^contentwords WHERE postid=#',
$postid
);
}
function qa_db_tagwords_get_post_wordids($postid)
/*
Return an array of wordids that were indexed in the database for the individual words in tags of $postid
*/
{
return qa_db_read_all_values(qa_db_query_sub(
'SELECT wordid FROM ^tagwords WHERE postid=#',
$postid
));
}
function qa_db_tagwords_delete_post($postid)
/*
Remove all entries in the database index of individual words in tags of $postid
*/
{
qa_db_query_sub(
'DELETE FROM ^tagwords WHERE postid=#',
$postid
);
}
function qa_db_posttags_get_post_wordids($postid)
/*
Return an array of wordids that were indexed in the database for the whole tags of $postid
*/
{
return qa_db_read_all_values(qa_db_query_sub(
'SELECT wordid FROM ^posttags WHERE postid=#',
$postid
));
}
function qa_db_posttags_delete_post($postid)
/*
Remove all entries in the database index of whole tags for $postid
*/
{
qa_db_query_sub(
'DELETE FROM ^posttags WHERE postid=#',
$postid
);
}
function qa_db_posts_filter_q_postids($postids)
/*
Return the array $postids containing only those elements which are the postid of a qustion in the database
*/
{
if (count($postids))
return qa_db_read_all_values(qa_db_query_sub(
"SELECT postid FROM ^posts WHERE type='Q' AND postid IN (#)",
$postids
));
else
return array();
}
function qa_db_posts_get_userids($postids)
/*
Return an array of all the userids of authors of posts in the array $postids
*/
{
if (count($postids))
return qa_db_read_all_values(qa_db_query_sub(
"SELECT DISTINCT userid FROM ^posts WHERE postid IN (#) AND userid IS NOT NULL",
$postids
));
else
return array();
}
function qa_db_flaggedcount_update()
/*
Update the cached count of the number of flagged posts in the database
*/
{
if (qa_should_update_counts())
qa_db_query_sub("REPLACE ^options (title, content) SELECT 'cache_flaggedcount', COUNT(*) FROM ^posts WHERE flagcount>0 AND type IN ('Q', 'A', 'C')");
}
/*
Omit PHP closing tag to help avoid accidental output
*/