code: protected function find($params)
      {
          $debug = false;
          $q = new Query();
          $q->select('*');
          $q->from($this->_tableName);
          foreach ($params as $k => $v) {
              if ($k === 'join') {
                  foreach ($v as $join) {
                      if (!isset($join['type'])) {
                          $join['type'] = 'INNER JOIN';
                      }
                      if (!isset($join['params'])) {
                          $join['params'] = [];
                      }
                      $q->join($join['type'], $join['table'], $join['on'], $join['params']);
                  }
                  $debug = true;
              } elseif (in_array($k, ['where'])) {
                  $q->{$k}($v);
              } else {
                  $q->{$k} = $v;
              }
          }
          if ($debug) {
              //var_dump($q->createCommand()->rawSql);exit;
          }
  
          return $q;
      }
docs: Find the models for a foreign data source.
  
  @param array $params the query parameters
  
  @return Query the foreign data query