private function _prepareQueries()
{
if (isset($this->_params['queries']['list'])) {
$query_list = array_keys($this->_params['queries']['list']);
} else {
$query_list = array(self::QUERY_BASE);
}
foreach ($query_list as $query) {
$method = '_prepare' . $query . 'Query';
if (isset($this->_params['queries']['list'][$query])) {
$this->{$method}($this->_params['queries']['list'][$query]);
} else {
$this->{$method}();
}
}
}