/**
* Sets the prefix of the database tables
* @param string prefix
* @param false|array tables (optional: false)
* table identifiers are array keys
* array values
* empty: set prefix: array( 'posts' => false, 'users' => false, ... )
* string: set to that array value: array( 'posts' => 'my_posts', 'users' => 'my_users' )
* array: array[0] is DB identifier, array[1] is table name: array( 'posts' => array( 'global', 'my_posts' ), 'users' => array( 'users', 'my_users' ) )
* OR array values (with numeric keys): array( 'posts', 'users', ... )
*
* @return string the previous prefix (mostly only meaningful if all $table parameter was false)
*/
function set_prefix($prefix, $tables = false)
{
$old_prefix = parent::set_prefix($prefix, $tables);
if (!$old_prefix || is_wp_error($old_prefix)) {
return $old_prefix;
}
if ($tables && is_array($tables)) {
$_tables = $tables;
} else {
$_tables = $this->tables;
}
foreach ($_tables as $key => $value) {
// array( 'posts' => array( 'global', 'my_posts' ), 'users' => array( 'users', 'my_users' ) )
if (is_array($value) && isset($this->db_servers['dbh_' . $value[0]])) {
$this->add_db_table($value[0], $value[1]);
$this->{$key} = $value[1];
}
}
return $old_prefix;
}
