function qformat_blackboard::process_tf in Quiz 6.5

Same name and namespace in other branches

1. 6.6 includes/moodle/question/format/blackboard/format.php \qformat_blackboard::process_tf()

1 call to qformat_blackboard::process_tf()

qformat_blackboard::readquestions in includes/moodle/question/format/blackboard/format.php

Parses an array of lines into an array of questions, where each item is a question object as defined by readquestion(). Questions are defined as anything between blank lines.

File

includes/moodle/question/format/blackboard/format.php, line 120

Class

qformat_blackboard

Code

function process_tf($xml, &$questions) {
  if (isset($xml["POOL"]["#"]["QUESTION_TRUEFALSE"])) {
    $tfquestions = $xml["POOL"]["#"]["QUESTION_TRUEFALSE"];
  }
  else {
    return;
  }
  for ($i = 0; $i < sizeof($tfquestions); $i++) {
    $question = $this
      ->defaultquestion();
    $question->qtype = TRUEFALSE;
    $question->single = 1;

    // Only one answer is allowed
    $thisquestion = $tfquestions[$i];

    // determine if the question is already escaped html
    $ishtml = $thisquestion["#"]["BODY"][0]["#"]["FLAGS"][0]["#"]["ISHTML"][0]["@"]["value"];

    // put questiontext in question object
    if ($ishtml) {
      $question->questiontext = html_entity_decode_php4(trim($thisquestion["#"]["BODY"][0]["#"]["TEXT"][0]["#"]));
    }
    $question->questiontext = addslashes($question->questiontext);

    // put name in question object
    $question->name = substr($question->questiontext, 0, 254);
    $choices = $thisquestion["#"]["ANSWER"];
    $correct_answer = $thisquestion["#"]["GRADABLE"][0]["#"]["CORRECTANSWER"][0]["@"]["answer_id"];

    // first choice is true, second is false.
    $id = $choices[0]["@"]["id"];
    if (strcmp($id, $correct_answer) == 0) {

      // true is correct
      $question->answer = 1;
      $question->feedbacktrue = addslashes(trim(@$thisquestion["#"]["GRADABLE"][0]["#"]["FEEDBACK_WHEN_CORRECT"][0]["#"]));
      $question->feedbackfalse = addslashes(trim(@$thisquestion["#"]["GRADABLE"][0]["#"]["FEEDBACK_WHEN_INCORRECT"][0]["#"]));
    }
    else {

      // false is correct
      $question->answer = 0;
      $question->feedbacktrue = addslashes(trim(@$thisquestion["#"]["GRADABLE"][0]["#"]["FEEDBACK_WHEN_INCORRECT"][0]["#"]));
      $question->feedbackfalse = addslashes(trim(@$thisquestion["#"]["GRADABLE"][0]["#"]["FEEDBACK_WHEN_CORRECT"][0]["#"]));
    }
    $question->correctanswer = $question->answer;
    $questions[] = $question;
  }
}