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Updated question scripts to work in their new location

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This commit is contained in:
gustav_delius
2006-02-24 10:35:28 +00:00
parent e56a08dc15
commit e586cfb4b0
27 changed files with 249 additions and 873 deletions
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question/editlib.php
+17 -335
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@@ -1,16 +1,19 @@
<?php // $Id$
/**
* Functions used by edit.php to edit quizzes
* Functions used by showbank.php to show question editing interface
*
* TODO: currently the function question_list still provides controls specific
* to the quiz module. This needs to be generalised.
*
* @version $Id$
* @author Martin Dougiamas and many others. This has recently been extensively
* rewritten by members of the Serving Mathematics project
* {@link http://maths.york.ac.uk/serving_maths}
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
* @package quiz
* @package question
*/
require_once("locallib.php");
require_once($CFG->libdir.'/questionlib.php');
/**
* Array of question types names translated to the user's language
@@ -38,329 +41,8 @@ if ($rqp_types = get_records('quiz_rqp_types')) {
}
}
/**
* Delete a question from a quiz
*
* Deletes a question or a pagebreak from a quiz by updating $modform
* as well as the quiz, quiz_question_instances
* @return boolean false if the question was not in the quiz
* @param int $id The id of the question to be deleted
* @param object $modform The extended quiz object as used by edit.php
* This is updated by this function
*/
function quiz_delete_quiz_question($id, &$modform) {
// TODO: For the sake of safety check that this question can be deleted
// safely, i.e., that it is not already in use.
$questions = explode(",", $modform->questions);
// only do something if this question exists
if (!isset($questions[$id])) {
return false;
}
$question = $questions[$id];
unset($questions[$id]);
// If we deleted the question at the top and it was followed by
// a page break then delete page break as well
if ($id == 0 and $questions[1] == 0) {
unset($questions[1]);
}
$modform->questions = implode(",", $questions);
// Avoid duplicate page breaks
$modform->questions = str_replace(',0,0', ',0', $modform->questions);
// save new questionlist in database
if (!set_field('quiz', 'questions', $modform->questions, 'id', $modform->instance)) {
error('Could not save question list');
}
}
/**
* Add a question to a quiz
*
* Adds a question to a quiz by updating $modform as well as the
* quiz and quiz_question_instances tables. It also adds a page break
* if required.
* @return boolean false if the question was already in the quiz
* @param int $id The id of the question to be added
* @param object $modform The extended quiz object as used by edit.php
* This is updated by this function
*/
function quiz_add_quiz_question($id, &$modform) {
$questions = explode(",", $modform->questions);
if (in_array($id, $questions)) {
return false;
}
// remove ending page break if it is not needed
if ($breaks = array_keys($questions, 0)) {
// determine location of the last two page breaks
$end = end($breaks);
$last = prev($breaks);
$last = $last ? $last : -1;
if (!$modform->questionsperpage or (($end - $last -1) < $modform->questionsperpage)) {
array_pop($questions);
}
}
// add question
$questions[] = $id;
// add ending page break
$questions[] = 0;
// Save new questionslist in database
$modform->questions = implode(",", $questions);
if (!set_field('quiz', 'questions', $modform->questions, 'id', $modform->id)) {
error('Could not save question list');
}
// update question grades
$questionrecord = get_record("quiz_questions", "id", $id);
$modform->grades[$id] = $questionrecord->defaultgrade;
quiz_update_question_instance($modform->grades[$id], $id, $modform->instance);
return true;
}
/**
* Save changes to question instance
*
* Saves changes to the question grades in the quiz_question_instances table.
* It does not update 'sumgrades' in the quiz table.
* @return boolean Indicates success or failure.
* @param integer grade The maximal grade for the question
* @param integer $questionid The id of the question
* @param integer $quizid The id of the quiz to update / add the instances for.
*/
function quiz_update_question_instance($grade, $questionid, $quizid) {
if ($instance = get_record("quiz_question_instances", "quiz", $quizid, 'question', $questionid)) {
$instance->grade = $grade;
return update_record('quiz_question_instances', $instance);
} else {
unset($instance);
$instance->quiz = $quizid;
$instance->question = $questionid;
$instance->grade = $grade;
return insert_record("quiz_question_instances", $instance);
}
}
/**
* Prints a list of quiz questions in a small layout form with knobs
*
* @return int sum of maximum grades
* @param object $quiz This is not the standard quiz object used elsewhere but
* it contains the quiz layout in $quiz->questions and the grades in
* $quiz->grades
* @param boolean $allowdelete Indicates whether the delete icons should be displayed
* @param boolean $showbreaks Indicates whether the page breaks should be displayed
* @param boolean $showbreaks Indicates whether the reorder tool should be displayed
*/
function quiz_print_question_list($quiz, $allowdelete=true, $showbreaks=true, $reordertool=false) {
global $USER, $CFG, $QUIZ_QTYPES;
$strorder = get_string("order");
$strquestionname = get_string("questionname", "quiz");
$strgrade = get_string("grade");
$strremove = get_string('remove', 'quiz');
$stredit = get_string("edit");
$straction = get_string("action");
$strmoveup = get_string("moveup");
$strmovedown = get_string("movedown");
$strsavegrades = get_string("savegrades", "quiz");
$strtype = get_string("type", "quiz");
$strpreview = get_string("preview", "quiz");
if (!$quiz->questions) {
echo "<p align=\"center\">";
print_string("noquestions", "quiz");
echo "</p>";
return 0;
}
if (!$questions = get_records_sql("SELECT q.*,c.course
FROM {$CFG->prefix}quiz_questions q,
{$CFG->prefix}quiz_categories c
WHERE q.id in ($quiz->questions)
AND q.category = c.id")) {
echo "<p align=\"center\">";
print_string("noquestions", "quiz");
echo "</p>";
return 0;
}
$count = 0;
$qno = 1;
$sumgrade = 0;
$order = explode(",", $quiz->questions);
$lastindex = count($order)-1;
// If the list does not end with a pagebreak then add it on.
if ($order[$lastindex] != 0) {
$order[] = 0;
$lastindex++;
}
echo "<form method=\"post\" action=\"edit.php\">";
echo "<input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
print_simple_box_start('center', '100%', '#ffffff', 0);
echo "<table border=\"0\" cellpadding=\"2\" cellspacing=\"0\" width=\"100%\">\n";
echo "<tr><th colspan=\"3\" nowrap=\"nowrap\" class=\"header\">$strorder</th><th class=\"header\">#</th><th align=\"left\" width=\"100%\" nowrap=\"nowrap\" class=\"header\">$strquestionname</th><th nowrap=\"nowrap\" class=\"header\">$strtype</th><th nowrap=\"nowrap\" class=\"header\">$strgrade</th><th align=\"center\" width=\"60\" nowrap=\"nowrap\" class=\"header\">$straction</th></tr>\n";
foreach ($order as $i => $qnum) {
if ($qnum and empty($questions[$qnum])) {
continue;
}
// Show the re-ordering field if the tool is turned on.
// But don't show it in front of pagebreaks if they are hidden.
if ($reordertool) {
if ($qnum or $showbreaks) {
echo '<tr><td><input type="text" name="o'.$i.'" size="2" value="'.(10*$count+10).'" /></td>';
} else {
echo '<tr><td><input type="hidden" name="o'.$i.'" size="2" value="'.(10*$count+10).'" /></td>';
}
} else {
echo '<tr><td></td>';
}
if ($qnum == 0) { // This is a page break
if ($showbreaks) {
echo '<td colspan ="3">&nbsp;</td>';
echo '<td><table width="100%" style="line-height:11px; font-size:9px; margin: -5px -5px;"><tr>';
echo '<td><hr noshade="noshade" /></td>';
echo '<td width="50">Page break</td>';
echo '<td><hr noshade="noshade" /></td><td width="45">';
if ($count > 1) {
echo "<a title=\"$strmoveup\" href=\"edit.php?up=$count&amp;sesskey=$USER->sesskey\"><img
src=\"$CFG->pixpath/t/up.gif\" border=\"0\" alt=\"$strmoveup\" /></a>";
}
echo '&nbsp;';
if ($count < $lastindex) {
echo "<a title=\"$strmovedown\" href=\"edit.php?down=$count&amp;sesskey=$USER->sesskey\"><img
src=\"$CFG->pixpath/t/down.gif\" border=\"0\" alt=\"$strmovedown\" /></a>";
echo "<a title=\"$strremove\" href=\"edit.php?delete=$count&amp;sesskey=$USER->sesskey\">
<img src=\"$CFG->pixpath/t/delete.gif\" border=\"0\" alt=\"$strremove\" /></a>";
}
echo '</td></tr></table></td>';
echo '<td colspan="2">&nbsp;</td></tr>';
}
$count++;
continue;
}
$question = $questions[$qnum];
$canedit = isteacheredit($question->course);
echo "<td>";
if ($count != 0) {
echo "<a title=\"$strmoveup\" href=\"edit.php?up=$count&amp;sesskey=$USER->sesskey\"><img
src=\"$CFG->pixpath/t/up.gif\" border=\"0\" alt=\"$strmoveup\" /></a>";
}
echo "</td>";
echo "<td>";
if ($count < $lastindex-1) {
echo "<a title=\"$strmovedown\" href=\"edit.php?down=$count&amp;sesskey=$USER->sesskey\"><img
src=\"$CFG->pixpath/t/down.gif\" border=\"0\" alt=\"$strmovedown\" /></a>";
}
echo "</td>";
if (!$quiz->shufflequestions) {
// Print and increment question number
echo '<td>'.($question->length ? $qno : '&nbsp;').'</td>';
$qno += $question->length;
} else {
echo '<td>&nbsp;</td>';
}
echo "<td>$question->name</td>";
echo "<td align=\"center\">";
quiz_print_question_icon($question, $canedit);
echo "</td>";
echo '<td align="left">';
if ($question->qtype == DESCRIPTION) {
echo "<input type=\"hidden\" name=\"q$qnum\" value=\"0\" /> \n";
} else {
echo '<input type="text" name="q'.$qnum.'" size="2" value="'.$quiz->grades[$qnum].
'" tabindex="'.($lastindex+$qno).'" />';
}
echo '</td><td align="center">';
$context = $quiz->id ? '&amp;contextquiz='.$quiz->id : '';
$quiz_id = $quiz->id ? '&amp;quizid=' . $quiz->id : '';
echo "<a title=\"$strpreview\" href=\"javascript:void();\" onClick=\"openpopup('/mod/quiz/preview.php?id=$qnum$quiz_id','$strpreview','scrollbars=yes,resizable=yes,width=700,height=480', false)\">
<img src=\"$CFG->pixpath/t/preview.gif\" border=\"0\" alt=\"$strpreview\" /></a>";
if ($canedit) {
echo "<a title=\"$stredit\" href=\"question.php?id=$qnum$context\">
<img src=\"$CFG->pixpath/t/edit.gif\" border=\"0\" alt=\"$stredit\" /></a>";
}
if ($allowdelete) {
echo "<a title=\"$strremove\" href=\"edit.php?delete=$count&amp;sesskey=$USER->sesskey\">
<img src=\"$CFG->pixpath/t/removeright.gif\" border=\"0\" alt=\"$strremove\" /></a>";
}
echo "</td></tr>";
$count++;
$sumgrade += $quiz->grades[$qnum];
}
echo "<tr><td colspan=\"6\" align=\"right\">\n";
print_string('total');
echo ": <td align=\"left\">\n";
echo "<b>$sumgrade</b>";
echo "</td><td>&nbsp;\n</td></tr>\n";
echo "<tr><td colspan=\"6\" align=\"right\">\n";
print_string('maximumgrade');
echo ": <td align=\"left\">\n";
echo '<input type="text" name="maxgrade" size="2" tabindex="'.($qno+1)
.'" value="'.$quiz->grade.'" />';
echo '</td><td align="left">';
helpbutton("maxgrade", get_string("maximumgrade"), "quiz");
echo "</td></tr></table>\n";
echo '<div align="center"><input type="submit" value="'.get_string('savechanges').'" />';
echo '<input type="hidden" name="savechanges" value="save" /></div>';
print_simple_box_end();
echo "</form>\n";
/// Form to choose to show pagebreaks and to repaginate quiz
echo '<form method="post" action="edit.php" name="showbreaks">';
echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
echo '<input type="hidden" name="showbreaks" value="0" />';
echo '<input type="checkbox" name="showbreaks" value="1"';
if ($showbreaks) {
echo ' checked="checked"';
}
echo ' onchange="document.showbreaks.submit(); return true;" />';
print_string('showbreaks', 'quiz');
if ($showbreaks) {
$perpage= array();
for ($i=0; $i<=50; ++$i) {
$perpage[$i] = $i;
}
$perpage[0] = get_string('allinone', 'quiz');
echo '<br />&nbsp;&nbsp;';
print_string('repaginate', 'quiz',
choose_from_menu($perpage, 'questionsperpage', $quiz->questionsperpage, '', '', '', true));
}
echo '<br /><input type="hidden" name="reordertool" value="0" />';
echo '<input type="checkbox" name="reordertool" value="1"';
if ($reordertool) {
echo ' checked="checked"';
}
echo ' onchange="document.showbreaks.submit(); return true;" />';
print_string('reordertool', 'quiz');
helpbutton('reorderingtool', get_string('reorderingtool', 'quiz'), 'quiz');
echo '<div align="center"><input type="submit" name="repaginate" value="'. get_string('go') .'" /></div>';
echo '</form>';
return $sumgrade;
}
function quiz_print_category_form($course, $current, $recurse=1, $showhidden=false) {
function question_category_form($course, $current, $recurse=1, $showhidden=false) {
global $CFG;
/// Prints a form to choose categories
/// Make sure the default category exists for this course
@@ -393,7 +75,7 @@ function quiz_print_category_form($course, $current, $recurse=1, $showhidden=fal
echo "</td><td>";
popup_form ("edit.php?cat=", $catmenu, "catmenu", $current, "", "", "", false, "self");
echo "</td><td align=\"right\">";
echo "<form method=\"get\" action=\"category.php\">";
echo "<form method=\"get\" action=\"$CFG->wwwroot/question/category.php\">";
echo "<input type=\"hidden\" name=\"id\" value=\"$course->id\" />";
echo "<input type=\"submit\" value=\"$streditcats\" />";
echo "</form>";
@@ -433,7 +115,7 @@ function quiz_print_category_form($course, $current, $recurse=1, $showhidden=fal
* @param int $perpage Number of questions to show per page
* @param boolean $showhidden True if also hidden questions should be displayed
*/
function quiz_print_cat_question_list($course, $categoryid, $quizid,
function question_list($course, $categoryid, $quizid,
$recurse=1, $page, $perpage, $showhidden=false, $sortorder='qtype, name ASC') {
global $QUIZ_QUESTION_TYPE, $USER, $CFG;
@@ -483,7 +165,7 @@ function quiz_print_cat_question_list($course, $categoryid, $quizid,
if (isteacheredit($category->course)) {
echo "<td valign=\"top\"><b>$strcreatenewquestion:</b></td>";
echo '<td valign="top" align="right">';
popup_form ("question.php?category=$category->id&amp;qtype=", $QUIZ_QUESTION_TYPE, "addquestion",
popup_form ("$CFG->wwwroot/question/question.php?category=$category->id&amp;qtype=", $QUIZ_QUESTION_TYPE, "addquestion",
"", "choose", "", "", false, "self");
echo '</td><td width="10" valign="top" align="right">';
helpbutton("questiontypes", $strcreatenewquestion, "quiz");
@@ -497,11 +179,11 @@ function quiz_print_cat_question_list($course, $categoryid, $quizid,
echo '<tr><td colspan="3" align="right"><font size="2">';
if (isteacheredit($category->course)) {
echo '<a href="import.php?category='.$category->id.'">'.$strimportquestions.'</a>';
echo '<a href="'.$CFG->wwwroot.'/mod/quiz/import.php?category='.$category->id.'">'.$strimportquestions.'</a>';
helpbutton("import", $strimportquestions, "quiz");
echo ' | ';
}
echo "<a href=\"export.php?category={$category->id}&amp;courseid={$course->id}\">$strexportquestions</a>";
echo "<a href=\"$CFG->wwwroot/mod/quiz/export.php?category={$category->id}&amp;courseid={$course->id}\">$strexportquestions</a>";
helpbutton("export", $strexportquestions, "quiz");
echo '</font></td></tr>';
@@ -562,17 +244,17 @@ function quiz_print_cat_question_list($course, $categoryid, $quizid,
echo "<a title=\"$straddtoquiz\" href=\"edit.php?addquestion=$question->id&amp;sesskey=$USER->sesskey\"><img
src=\"$CFG->pixpath/t/moveleft.gif\" border=\"0\" alt=\"$straddtoquiz\" /></a>&nbsp;";
}
echo "<a title=\"$strpreview\" href=\"javascript:void();\" onClick=\"openpopup('/mod/quiz/preview.php?id=$question->id&quizid=$quizid','$strpreview','scrollbars=yes,resizable=yes,width=700,height=480', false)\"><img
echo "<a title=\"$strpreview\" href=\"javascript:void();\" onClick=\"openpopup('/question/preview.php?id=$question->id&quizid=$quizid','$strpreview','scrollbars=yes,resizable=yes,width=700,height=480', false)\"><img
src=\"$CFG->pixpath/t/preview.gif\" border=\"0\" alt=\"$strpreview\" /></a>&nbsp;";
if ($canedit) {
echo "<a title=\"$stredit\" href=\"question.php?id=$question->id\"><img
echo "<a title=\"$stredit\" href=\"$CFG->wwwroot/question/question.php?id=$question->id\"><img
src=\"$CFG->pixpath/t/edit.gif\" border=\"0\" alt=\"$stredit\" /></a>&nbsp;";
// hide-feature
if($question->hidden) {
echo "<a title=\"$strrestore\" href=\"question.php?id=$question->id&amp;hide=0&amp;sesskey=$USER->sesskey\"><img
echo "<a title=\"$strrestore\" href=\"$CFG->wwwroot/question/question.php?id=$question->id&amp;hide=0&amp;sesskey=$USER->sesskey\"><img
src=\"$CFG->pixpath/t/restore.gif\" border=\"0\" alt=\"$strrestore\" /></a>";
} else {
echo "<a title=\"$strdelete\" href=\"question.php?id=$question->id&amp;delete=$question->id\"><img
echo "<a title=\"$strdelete\" href=\"$CFG->wwwroot/question/question.php?id=$question->id&amp;delete=$question->id\"><img
src=\"$CFG->pixpath/t/delete.gif\" border=\"0\" alt=\"$strdelete\" /></a>";
}
}