decode_fluency.php

  private function decode_fluency($record){
    $values = array('' => 0, 'none' => 0, 'basic' => 1, 'functional' => 2, 'fluent' = 3);
    $read  = $values[$record['can_read']];
    $write = $values[$record['can_write']];
    $speak = $values[$record['can_speak']];
    $this->can_read = ($read > 0);
    $this->can_write = ($write > 0);
    $this->can_speak = ($speak > 0);
    $this->can_understand_spoken = ($speak > 2); //speak is fluent
    $this->can_peer_review = ($read == 3 && $write >= 2); //read is fluent & write is fluent/functional
  }