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display template for truefalse questions. Also simplified the code.

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This commit is contained in:
gustav_delius 2006-02-21 23:08:11 +00:00
parent dcfa8b2aa9
commit 7fddf77ea5
2 changed files with 76 additions and 115 deletions
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31
mod/quiz/questiontypes/truefalse/display.html Normal file
View File

@ -0,0 +1,31 @@
<div class="qtext">
<?php echo $questiontext; ?>
</div>
<?php if ($image) { ?>
<img class="qimage" src="<?php echo $q->imageurl; ?>" alt="" />
<?php } ?>
<div class="answer">
<div class="prompt">
<?php print_string('answer', 'quiz') ?>:
</div>
<div class="controls">
<span <?php echo $trueclass; ?>>
<?php echo $radiotrue ?>
</span>
<span <?php echo $falseclass; ?>>
<?php echo $radiofalse ?>
</span>
<?php $this->print_question_submit_buttons($question, $state, $cmoptions, $options); ?>
</div>
</div>
<?php if ($feedback) { ?>
<div class="feedback">
<?php echo $feedback ?>
</div>
<?php } ?>
</div>

160
mod/quiz/questiontypes/truefalse/questiontype.php
View File

@ -12,10 +12,13 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
}
function save_question_options($question) {
// fetch old answer ids so that we can reuse them
if (!$oldanswers = get_records("quiz_answers", "question", $question->id, "id ASC")) {
$oldanswers = array();
}
// Save answer 'True'
if ($true = array_shift($oldanswers)) { // Existing answer, so reuse it
$true->answer = get_string("true", "quiz");
$true->fraction = $question->answer;
@ -36,6 +39,7 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
}
}
// Save answer 'False'
if ($false = array_shift($oldanswers)) { // Existing answer, so reuse it
$false->answer = get_string("false", "quiz");
$false->fraction = 1 - (int)$question->answer;
@ -56,13 +60,14 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
}
}
// delete old answer records
// delete any leftover old answer records (there couldn't really be any, but who knows)
if (!empty($oldanswers)) {
foreach($oldanswers as $oa) {
delete_records('quiz_answers', 'id', $oa->id);
}
}
// Save question options in quiz_truefalse table
if ($options = get_record("quiz_truefalse", "question", $question->id)) {
// No need to do anything, since the answer IDs won't have changed
// But we'll do it anyway, just for robustness
@ -91,22 +96,16 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
function get_question_options(&$question) {
// Get additional information from database
// and attach it to the question object
if (!$question->options = get_record('quiz_truefalse', 'question',
$question->id)) {
if (!$question->options = get_record('quiz_truefalse', 'question', $question->id)) {
notify('Error: Missing question options!');
return false;
}
// Load possible answers
if (!$answers = get_records('quiz_answers', 'question',
$question->id)) {
// Load the answers
if (!$question->options->answers = get_records('quiz_answers', 'question', $question->id)) {
notify('Error: Missing question answers!');
return false;
}
$question->options->answers = array(
'true' => $answers[$question->options->trueanswer],
'false' => $answers[$question->options->falseanswer]);
return true;
}
@ -122,6 +121,7 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
}
function get_correct_responses(&$question, &$state) {
// The correct answer is the one which gives full marks
foreach ($question->options->answers as $answer) {
if (((int) $answer->fraction) === 1) {
return array('' => $answer->id);
@ -135,130 +135,61 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
*/
function print_question_formulation_and_controls(&$question, &$state,
$cmoptions, $options) {
global $CFG;
$answers = &$question->options->answers;
$correctanswers = $this->get_correct_responses($question, $state);
$readonly = $options->readonly ? ' readonly="readonly"' : '';
// Print question formulation
echo format_text($question->questiontext,
$questiontext = format_text($question->questiontext,
$question->questiontextformat,
NULL, $cmoptions->course);
quiz_print_possible_question_image($question, $cmoptions->course);
$image = quiz_get_image($question, $cmoptions->course);
// Update the answer strings
$stranswer = get_string('answer', 'quiz');
$strlastanswer = get_string('lastanswer', 'quiz');
$answers = &$question->options->answers;
$trueanswer = &$answers[$question->options->trueanswer];
$falseanswer = &$answers[$question->options->falseanswer];
$correctanswer = ($trueanswer->fraction == 1) ? $trueanswer : $falseanswer;
// Work out the selected answer and last marked answer
$selected = '';
$marked = '';
$teststate = clone($state);
$teststate->responses = array('' => $answers['true']->id);
if ($this->compare_responses($question, $state, $teststate)) {
$selected = 'true';
}
if ($this->compare_responses($question, $state->last_graded,
$teststate)) {
$marked = 'true';
}
$teststate->responses = array('' => $answers['false']->id);
if ($this->compare_responses($question, $state, $teststate)) {
$selected = 'false';
}
if ($this->compare_responses($question, $state->last_graded,
$teststate)) {
$marked = 'false';
}
// Work out the correct answer if feedback or correct responses are
// requested.
if ($options->feedback || $options->correct_responses) {
$correctstate = clone($state);
$correctstate->responses = array('' => $correctanswers['']);
$correct = '';
if (!is_null($correctstate->responses)) {
$teststate->responses = array('' => $answers['true']->id);
if ($this->compare_responses($question, $correctstate,
$teststate)) {
$correct = 'true';
}
$teststate->responses = array('' => $answers['false']->id);
if ($this->compare_responses($question, $correctstate,
$teststate)) {
$correct = 'false';
}
}
}
// Work out which radio button to select (if either)
$truechecked = ('true' === $selected) ? ' checked="checked"' : '';
$falsechecked = ('false' === $selected) ? ' checked="checked"' : '';
// Work out which radio button to select (if any)
$truechecked = ($state->responses[''] == $trueanswer->id) ? ' checked="checked"' : '';
$falsechecked = ($state->responses[''] == $falseanswer->id) ? ' checked="checked"' : '';
// Work out which answer is correct if we need to highlight it
if ($options->correct_responses) {
$truecorrect = ('true' === $correct) ? ' class="highlight"' : '';
$falsecorrect = ('false' === $correct) ? ' class="highlight"' : '';
$trueclass = ($trueanswer->fraction) ? ' class="highlight"' : '';
$falseclass = ($falseanswer->fraction) ? ' class="highlight"' : '';
} else {
$truecorrect = '';
$falsecorrect = '';
$trueclass = '';
$falseclass = '';
}
// Replace these with the appropriate language
$answers['true']->answer = get_string('true', 'quiz');
$answers['false']->answer = get_string('false', 'quiz');
// Print the controls
$inputname = ' name="'.$question->name_prefix.'" ';
$trueid = $question->name_prefix.'true';
$falseid = $question->name_prefix.'false';
echo '<table align="right" cellpadding="5"><tr><td align="right">';
echo $stranswer . ':&nbsp;&nbsp;</td>';
echo '<td' . $truecorrect . '>';
echo '<input type="radio"' . $truechecked . $readonly . $inputname;
echo 'id="'.$trueid . '" value="' . $answers['true']->id . '" alt="';
echo s($answers['true']->answer) . '" /><label for="'.$trueid . '">';
echo s($answers['true']->answer) . '</label>';
echo '</td><td' . $falsecorrect . '>';
echo '<input type="radio"' . $falsechecked . $readonly . $inputname;
echo 'id="'.$falseid . '" value="' . $answers['false']->id . '" alt="';
echo s($answers['false']->answer) . '" /><label for="'.$falseid . '">';
echo s($answers['false']->answer) . '</label>';
if (!empty($marked) && (!$options->readonly || $marked !== $selected)) {
/* This should never happen but it is here both for robustness and
to serve as an example for question type authors */
echo '</td></tr><tr><td><font size="1">';
echo $strlastanswer . ':&nbsp;&nbsp;</font></td>';
echo '</td>';
if ('true' === $marked) {
echo '<td><font size="1">' . $answers['true']->answer;
echo '</font></td><td></td>';
} else {
echo '<td></td><td><font size="1">';
echo $answers['false']->answer . '</font></td>';
}
}
echo '</td></tr></table><br clear="all" />';
if ($options->feedback && !empty($marked)) {
quiz_print_comment($answers[$marked]->feedback);
$radiotrue = '<input type="radio"' . $truechecked . $readonly . $inputname
. 'id="'.$trueid . '" value="' . $trueanswer->id . '" alt="'
. s($trueanswer->answer) . '" /><label for="'.$trueid . '">'
. s($trueanswer->answer) . '</label>';
$radiofalse = '<input type="radio"' . $falsechecked . $readonly . $inputname
. 'id="'.$falseid . '" value="' . $falseanswer->id . '" alt="'
. s($falseanswer->answer) . '" /><label for="'.$falseid . '">'
. s($falseanswer->answer) . '</label>';
$feedback = '';
if ($options->feedback and isset($answers[$state->responses['']])) {
$chosenanswer = $answers[$state->responses['']];
$feedback = format_text($chosenanswer->feedback, true, false);
}
include("$CFG->dirroot/mod/quiz/questiontypes/truefalse/display.html");
}
function grade_responses(&$question, &$state, $cmoptions) {
$teststate = clone($state);
$teststate->raw_grade = 0;
foreach($question->options->answers as $answer) {
$teststate->responses[''] = $answer->id;
if($this->compare_responses($question, $state, $teststate)) {
$state->raw_grade = min(max((float) $answer->fraction,
0.0), 1.0) * $question->maxgrade;
break;
}
}
if (empty($state->raw_grade)) {
$state->raw_grade = 0.0;
if (isset($question->options->answers[$state->responses['']])) {
$state->raw_grade = $question->options->answers[$state->responses['']]->fraction * $question->maxgrade;
} else {
$state->raw_grade = 0;
}
// Only allow one attempt at the question
$state->penalty = 1;
@ -267,9 +198,8 @@ class quiz_truefalse_qtype extends quiz_default_questiontype {
}
function get_actual_response($question, $state) {
$answers = $question->options->answers;
if (!empty($state->responses)) {
$responses[] = ($answers['true']->id == $state->responses['']) ? get_string("true", "quiz") : get_string("false", "quiz");
if (isset($question->options->answers[$state->responses['']])) {
$responses[] = $question->options->answers[$state->responses['']]->answer;
} else {
$responses[] = '';
}