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wpdb::set_prefix(). fixes #5287 

git-svn-id: http://svn.automattic.com/wordpress/trunk@6300 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan 2007-10-31 03:59:18 +00:00
parent 1d0bf72d2f
commit d85d86db03
1 changed files with 23 additions and 5 deletions
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28
wp-includes/wp-db.php
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@ -20,6 +20,7 @@ class wpdb {
var $last_query;
var $col_info;
var $queries;
var $prefix = '';
// Our tables
var $posts;
@ -29,16 +30,13 @@ class wpdb {
var $comments;
var $links;
var $options;
var $optiontypes;
var $optionvalues;
var $optiongroups;
var $optiongroup_options;
var $postmeta;
var $usermeta;
var $terms;
var $term_taxonomy;
var $term_relationships;
var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options',
'postmeta', 'terms', 'term_taxonomy', 'term_relationships');
var $charset;
var $collate;
@ -86,6 +84,26 @@ class wpdb {
return true;
}
function set_prefix($prefix) {
if ( preg_match('|[^a-z0-9_]|i', $prefix) )
return new WP_Error('invalid_db_prefix', 'Invalid database prefix'); // No gettext here
$old_prefix = $this->prefix;
$this->prefix = $prefix;
foreach ( $this->tables as $table )
$this->$table = $this->prefix . $table;
if ( defined('CUSTOM_USER_TABLE') )
$this->users = CUSTOM_USER_TABLE;
if ( defined('CUSTOM_USER_META_TABLE') )
$this->usermeta = CUSTOM_USER_META_TABLE;
return $old_prefix;
}
/**
* Selects a database using the current class's $this->dbh
* @param string $db name