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192 lines
8.1 KiB
PHP
192 lines
8.1 KiB
PHP
<?php // $Id$
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/**
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* Shows the question bank editing interface. To be included by other pages
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*
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* The script also processes a number of actions:
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* Actions affecting the question pool:
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* move Moves a question to a different category
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* deleteselected Deletes the selected questions from the category
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* Other actions:
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* cat Chooses the category
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* displayoptions Sets display options
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*
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* @version $Id$
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* @author Martin Dougiamas and many others. This has recently been extensively
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* rewritten by Gustav Delius and other members of the Serving Mathematics project
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* {@link http://maths.york.ac.uk/serving_maths}
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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* @package question
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*/
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// Make sure this can only be used from within Moodle scripts
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defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.');
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require_once($CFG->dirroot.'/question/editlib.php');
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$page = optional_param('page', -1, PARAM_INT);
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$perpage = optional_param('perpage', -1, PARAM_INT);
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$sortorder = optional_param('sortorder', '');
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if (preg_match("/[';]/", $sortorder)) {
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error("Incorrect use of the parameter 'sortorder'");
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}
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if ($page > -1) {
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$SESSION->questionpage = $page;
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} else {
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$page = isset($SESSION->questionpage) ? $SESSION->questionpage : 0;
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}
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if ($perpage > -1) {
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$SESSION->questionperpage = $perpage;
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} else {
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$perpage = isset($SESSION->questionperpage) ? $SESSION->questionperpage : DEFAULT_QUESTIONS_PER_PAGE;
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}
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if ($sortorder) {
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$SESSION->questionsortorder = $sortorder;
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} else {
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$sortorder = isset($SESSION->questionsortorder) ? $SESSION->questionsortorder : 'qtype, name ASC';
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}
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/// Now, check for commands on this page and modify variables as necessary
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if (isset($_REQUEST['move']) and confirm_sesskey()) { /// Move selected questions to new category
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$tocategoryid = required_param('category', PARAM_INT);
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if (!$tocategory = get_record('question_categories', 'id', $tocategoryid)) {
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error('Invalid category');
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}
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if (!has_capability('moodle/question:managecategory', get_context_instance(CONTEXT_COURSE, $tocategory->course))){
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error(get_string('categorynoedit', 'quiz', $tocategory->name), 'edit.php?courseid=$course->id');
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}
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foreach ($_POST as $key => $value) { // Parse input for question ids
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if (substr($key, 0, 1) == "q") {
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$key = substr($key,1);
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if (!set_field('question', 'category', $tocategory->id, 'id', $key)) {
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error('Could not update category field');
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}
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}
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}
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}
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if (isset($_REQUEST['deleteselected'])) { // delete selected questions from the category
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if (isset($_REQUEST['confirm']) and confirm_sesskey()) { // teacher has already confirmed the action
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$deleteselected = required_param('deleteselected');
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if ($_REQUEST['confirm'] == md5($deleteselected)) {
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if ($questionlist = explode(',', $deleteselected)) {
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// for each question either hide it if it is in use or delete it
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foreach ($questionlist as $questionid) {
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if (record_exists('quiz_question_instances', 'question', $questionid) or
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record_exists('question_states', 'originalquestion', $questionid)) {
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if (!set_field('question', 'hidden', 1, 'id', $questionid)) {
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error('Was not able to hide question');
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}
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} else {
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delete_question($questionid);
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}
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}
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}
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echo '</td></tr>';
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echo '</table>';
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echo '</div>';
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redirect("edit.php?courseid=$course->id");
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} else {
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error("Confirmation string was incorrect");
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}
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} else { // teacher still has to confirm
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// make a list of all the questions that are selected
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$rawquestions = $_REQUEST;
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$questionlist = ''; // comma separated list of ids of questions to be deleted
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$questionnames = ''; // string with names of questions separated by <br /> with
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// an asterix in front of those that are in use
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$inuse = false; // set to true if at least one of the questions is in use
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foreach ($rawquestions as $key => $value) { // Parse input for question ids
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if (substr($key, 0, 1) == "q") {
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$key = substr($key,1);
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$questionlist .= $key.',';
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if (record_exists('quiz_question_instances', 'question', $key) or
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record_exists('question_states', 'originalquestion', $key)) {
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$questionnames .= '* ';
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$inuse = true;
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}
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$questionnames .= get_field('question', 'name', 'id', $key).'<br />';
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}
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}
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if (!$questionlist) { // no questions were selected
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redirect("edit.php?courseid=$course->id");
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}
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$questionlist = rtrim($questionlist, ',');
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// Add an explanation about questions in use
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if ($inuse) {
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$questionnames .= '<br />'.get_string('questionsinuse', 'quiz');
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}
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notice_yesno(get_string("deletequestionscheck", "quiz", $questionnames),
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"edit.php?courseid=$course->id&sesskey=$USER->sesskey&deleteselected=$questionlist&confirm=".md5($questionlist), "edit.php?courseid=$course->id");
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echo '</td></tr>';
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echo '</table>';
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print_footer($course);
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exit;
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}
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}
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// Unhide a question
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if(isset($_REQUEST['unhide']) && confirm_sesskey()) {
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$unhide = required_param('unhide', PARAM_INT);
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if(!set_field('question', 'hidden', 0, 'id', $unhide)) {
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error("Failed to unhide the question.");
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}
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redirect("edit.php?courseid=$course->id");
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}
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if (isset($_REQUEST['cat'])) { /// coming from category selection drop-down menu
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$SESSION->questioncat = required_param('cat', PARAM_INT);
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$page = 0;
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$SESSION->questionpage = 0;
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}
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if (empty($SESSION->questioncat) or !count_records_select("question_categories", "id = '{$SESSION->questioncat}' AND (course = '{$course->id}' OR publish = '1')")) {
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$category = get_default_question_category($course->id);
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$SESSION->questioncat = $category->id;
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}
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if(($recurse = optional_param('recurse', -1, PARAM_BOOL)) != -1) {
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$SESSION->questionrecurse = $recurse;
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}
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if (!isset($SESSION->questionrecurse)) {
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$SESSION->questionrecurse = 1;
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}
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if(($showhidden = optional_param('showhidden', -1, PARAM_BOOL)) != -1) {
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$SESSION->questionshowhidden = $showhidden;
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}
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if (!isset($SESSION->questionshowhidden)) {
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$SESSION->questionshowhidden = 0;
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}
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if(($showquestiontext = optional_param('showquestiontext', -1, PARAM_BOOL)) != -1) {
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$SESSION->questionshowquestiontext = $showquestiontext;
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}
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if (!isset($SESSION->questionshowquestiontext)) {
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$SESSION->questionshowquestiontext = 0;
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}
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// starts with category selection form
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if (has_capability('moodle/question:managecategory', $context)) {
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print_simple_box_start();
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question_category_form($course, $SESSION->questioncat, $SESSION->questionrecurse,
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$SESSION->questionshowhidden, $SESSION->questionshowquestiontext);
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print_simple_box_end();
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}
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// continues with list of questions
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print_simple_box_start();
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question_list($course, $SESSION->questioncat, isset($modform->instance) ? $modform->instance : 0,
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$SESSION->questionrecurse, $page, $perpage, $SESSION->questionshowhidden, $sortorder,
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$SESSION->questionshowquestiontext);
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print_simple_box_end();
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?>
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