moodle/mod/quiz/edit.php

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<?PHP // $Id$
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require("../../config.php");
require("lib.php");
require_login();
if (empty($destination)) {
$destination = "";
}
$modform = data_submitted($destination);
if ($modform and !empty($modform->course)) { // form submitted from mod.html
if (empty($modform->name) or empty($modform->intro)) {
error(get_string("filloutallfields"), $HTTP_REFERER);
}
$SESSION->modform = $modform; // Save the form in the current session
save_session("SESSION");
} else {
if (!isset($SESSION->modform)) {
error("You have used this page incorrectly!");
}
$modform = $SESSION->modform;
}
if (! $course = get_record("course", "id", $modform->course)) {
error("This course doesn't exist");
}
require_login($course->id);
if (!isteacher($course->id)) {
error("You can't modify this course!");
}
if (empty($modform->grades)) { // Construct an array to hold all the grades.
$modform->grades = quiz_get_all_question_grades($modform->questions, $modform->instance);
}
// Now, check for commands on this page and modify variables as necessary
if (!empty($up)) { /// Move the given question up a slot
$questions = explode(",", $modform->questions);
if ($questions[0] <> $up) {
foreach ($questions as $key => $question) {
if ($up == $question) {
$swap = $questions[$key-1];
$questions[$key-1] = $question;
$questions[$key] = $swap;
break;
}
}
$modform->questions = implode(",", $questions);
}
}
if (!empty($down)) { /// Move the given question down a slot
$questions = explode(",", $modform->questions);
if ($questions[count($questions)-1] <> $down) {
foreach ($questions as $key => $question) {
if ($down == $question) {
$swap = $questions[$key+1];
$questions[$key+1] = $question;
$questions[$key] = $swap;
break;
}
}
$modform->questions = implode(",", $questions);
}
}
if (!empty($add)) { /// Add a question to the current quiz
$rawquestions = $HTTP_POST_VARS;
if (!empty($modform->questions)) {
$questions = explode(",", $modform->questions);
}
foreach ($rawquestions as $key => $value) { // Parse input for question ids
if (substr($key, 0, 1) == "q") {
$key = substr($key,1);
if ($questions) {
foreach ($questions as $question) {
if ($question == $key) {
continue 2;
}
}
}
$questions[] = $key;
$modform->grades[$key] = 1; // default score
}
}
if (!empty($questions)) {
$modform->questions = implode(",", $questions);
} else {
$modform->questions = "";
}
}
if (!empty($delete)) { /// Delete a question from the list
$questions = explode(",", $modform->questions);
foreach ($questions as $key => $question) {
if ($question == $delete) {
unset($questions[$key]);
unset($modform->grades[$question]);
}
}
$modform->questions = implode(",", $questions);
}
if (!empty($setgrades)) { /// The grades have been updated, so update our internal list
$rawgrades = $HTTP_POST_VARS;
unset($modform->grades);
foreach ($rawgrades as $key => $value) { // Parse input for question -> grades
if (substr($key, 0, 1) == "q") {
$key = substr($key,1);
$modform->grades[$key] = $value;
}
}
}
if (!empty($cat)) { //-----------------------------------------------------------
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$modform->category = $cat;
}
if (empty($modform->category)) {
$modform->category = "";
}
$modform->sumgrades = 0;
if (!empty($modform->grades)) {
foreach ($modform->grades as $grade) {
$modform->sumgrades += $grade;
}
}
$SESSION->modform = $modform;
save_session("SESSION");
$strediting = get_string("editingquiz", "quiz");
$strname = get_string("name");
print_header("$course->shortname: $strediting", "$course->shortname: $strediting",
"<A HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</A> -> $strediting");
// Print basic page layout.
echo "<TABLE BORDER=0 WIDTH=\"100%\" CELLPADDING=2 CELLSPACING=0>";
echo "<TR><TD WIDTH=50% VALIGN=TOP>";
print_simple_box_start("CENTER", "100%", $THEME->body);
print_heading($modform->name);
quiz_print_question_list($modform->questions, $modform->grades);
?>
<CENTER>
<P>&nbsp;</P>
<FORM NAME=theform METHOD=post ACTION=<?=$modform->destination ?>>
<INPUT TYPE="hidden" NAME=course VALUE="<? p($modform->course) ?>">
<INPUT TYPE="submit" VALUE="<? print_string("savequiz", "quiz") ?>">
<INPUT type="submit" name=cancel value="<? print_string("cancel") ?>">
</FORM>
</CENTER>
<?
print_simple_box_end();
echo "</TD><TD VALIGN=top WIDTH=50%>";
print_simple_box_start("CENTER", "100%", $THEME->body);
quiz_print_category_form($course, $modform->category);
print_simple_box_end();
print_spacer(5,1);
print_simple_box_start("CENTER", "100%", $THEME->body);
quiz_print_cat_question_list($modform->category);
print_simple_box_end();
echo "</TD></TR>";
echo "</TABLE>";
print_footer($course);
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?>