course)) { // data submitted $SESSION->modform = $modform; // Save the form in the current session } else if ($quizid) { if (isset($SESSION->modform->id) and $SESSION->modform->id == $quizid) { // modform for this quiz already exists, use it $modform = $SESSION->modform; } else { // create new modform from database if (! $modform = get_record('quiz', 'id', $quizid)) { error("The required quiz doesn't exist"); } $modform->instance = $modform->id; $SESSION->modform = $modform; // Save the form in the current session $cm = get_coursemodule_from_instance('quiz', $modform->instance); $modform->cmid = $cm->id; // We don't log all visits to this page but only those that recreate modform add_to_log($cm->course, 'quiz', 'editquestions', "view.php?id=$cm->id", "$quizid", $cm->id); } } else if ($courseid) { // Page retrieve through "Edit Questions" link - no quiz selected $modform->course = $courseid; unset($modform->instance); $SESSION->modform = $modform; // Save the form in the current session add_to_log($courseid, 'quiz', 'editquestions', "index.php?id=$courseid"); } else { // no quiz or course was specified so we need to use the stored modform if (!isset($SESSION->modform)) { // we will get here after editing a question in // a popup window. So close window automatically. ?> modform; } if (! $course = get_record("course", "id", $modform->course)) { error("This course doesn't exist"); } require_login($course->id, false); if (!isteacheredit($course->id)) { error("You can't modify this course!"); } if (isset($modform->instance) && empty($modform->grades)) // Construct an array to hold all the grades. { $modform->grades = quiz_get_all_question_grades($modform); } if ($page > -1) { $modform->page = $page; } else { $page = isset($modform->page) ? $modform->page : 0; } /// Now, check for commands on this page and modify variables as necessary if (isset($_REQUEST['up']) and confirm_sesskey()) { /// Move the given question up a slot $questions = explode(",", $modform->questions); if ($up > 0 and isset($questions[$up])) { $prevkey = ($questions[$up-1] == 0) ? $up-2 : $up-1; $swap = $questions[$prevkey]; $questions[$prevkey] = $questions[$up]; $questions[$up] = $swap; $modform->questions = implode(",", $questions); // Always have a page break at the end $modform->questions = $modform->questions . ',0'; // Avoid duplicate page breaks $modform->questions = str_replace(',0,0', ',0', $modform->questions); if (!set_field('quiz', 'questions', $modform->questions, 'id', $modform->instance)) { error('Could not save question list'); } } } if (isset($_REQUEST['down']) and confirm_sesskey()) { /// Move the given question down a slot $questions = explode(",", $modform->questions); if ($down < count($questions)) { $nextkey = ($questions[$down+1] == 0) ? $down+2 : $down+1; $swap = $questions[$nextkey]; $questions[$nextkey] = $questions[$down]; $questions[$down] = $swap; $modform->questions = implode(",", $questions); // Avoid duplicate page breaks $modform->questions = str_replace(',0,0', ',0', $modform->questions); if (!set_field('quiz', 'questions', $modform->questions, 'id', $modform->instance)) { error('Could not save question list'); } } } if (isset($_REQUEST['addquestion']) and confirm_sesskey()) { /// Add a single question to the current quiz quiz_add_quiz_question($_REQUEST['addquestion'], $modform); } if (isset($_REQUEST['add']) and confirm_sesskey()) { /// Add selected questions to the current quiz foreach ($_POST as $key => $value) { // Parse input for question ids if (substr($key, 0, 1) == "q") { quiz_add_quiz_question(substr($key,1), $modform); } } } if (isset($_REQUEST['addrandom']) and confirm_sesskey()) { /// Add random questions to the quiz $recurse = optional_param('recurse', 0, PARAM_BOOL); $categoryid = required_param('categoryid', PARAM_INT); $randomcount = required_param('randomcount', PARAM_INT); // load category if (! $category = get_record('quiz_categories', 'id', $categoryid)) { error('Category ID is incorrect'); } // find existing random questions in this category $random = RANDOM; if ($existingquestions = get_records_select('quiz_questions', "qtype = '$random' AND category = '$category->id'")) { // now remove the ones that are already used in this quiz if ($questionids = explode(',', $modform->questions)) { foreach ($questionids as $questionid) { unset($existingquestions[$questionid]); } } // now take as many of these as needed $i = 0; while (($existingquestion = array_pop($existingquestions)) and ($i < $randomcount)) { if ($existingquestion->questiontext == $recurse) { // this question has the right recurse property, so use it quiz_add_quiz_question($existingquestion->id, $modform); $i++; } } $randomcreate = $randomcount - $i; // the number of additional random questions needed. } else { $randomcreate = $randomcount; } if ($randomcreate > 0) { $form->name = get_string('random', 'quiz') .' ('. $category->name .')'; $form->questiontext = $recurse; // we use the questiontext field to store the info // on whether to include questions in subcategories $form->questiontextformat = 0; $form->image = ''; $form->defaultgrade = 1; $form->hidden = 1; for ($i=0; $i<$randomcreate; $i++) { $form->stamp = make_unique_id_code(); // Set the unique code (not to be changed) $question = new stdClass; $question->category = $category->id; $question->qtype = RANDOM; $question = $QUIZ_QTYPES[RANDOM]->save_question($question, $form, $course); if(!isset($question->id)) { error('Could not insert new random question!'); } quiz_add_quiz_question($question->id, $modform); } } } if (isset($_REQUEST['repaginate']) and confirm_sesskey()) { /// Re-paginate the quiz if (isset($_REQUEST['questionsperpage'])) { $modform->questionsperpage = required_param('questionsperpage', 1, PARAM_INT); if (!set_field('quiz', 'questionsperpage', $modform->questionsperpage, 'id', $modform->id)) { error('Could not save number of questions per page'); } } $modform->questions = quiz_repaginate($modform->questions, $modform->questionsperpage); if (!set_field('quiz', 'questions', $modform->questions, 'id', $modform->id)) { error('Could not save layout'); } } if (isset($_REQUEST['move']) and confirm_sesskey()) { /// Move selected questions to new category if (!$tocategory = get_record('quiz_categories', 'id', $_REQUEST['category'])) { error('Invalid category'); } if (!isteacheredit($tocategory->course)) { error(get_string('categorynoedit', 'quiz', $tocategory->name), 'edit.php'); } foreach ($_POST as $key => $value) { // Parse input for question ids if (substr($key, 0, 1) == "q") { $key = substr($key,1); if (!set_field('quiz_questions', 'category', $tocategory->id, 'id', $key)) { error('Could not update category field'); } } } } if (isset($_REQUEST['delete']) and confirm_sesskey()) { /// Remove a question from the quiz quiz_delete_quiz_question($_REQUEST['delete'], $modform); } if (isset($_REQUEST['deleteselected'])) { // delete selected questions from the category if (isset($confirm) and confirm_sesskey()) { // teacher has already confirmed the action if ($confirm == md5($deleteselected)) { if ($questionlist = explode(',', $deleteselected)) { // for each question either hide it if it is in use or delete it foreach ($questionlist as $questionid) { if (record_exists('quiz_question_instances', 'question', $questionid) or record_exists('quiz_states', 'originalquestion', $questionid)) { if (!set_field('quiz_questions', 'hidden', 1, 'id', $questionid)) { error('Was not able to hide question'); } } else { delete_records("quiz_questions", "id", $questionid); } } } redirect("edit.php"); } else { error("Confirmation string was incorrect"); } } else { // teacher still has to confirm // make a list of all the questions that are selected $rawquestions = $_POST; $questionlist = ''; // comma separated list of ids of questions to be deleted $questionnames = ''; // string with names of questions separated by
with // an asterix in front of those that are in use $inuse = false; // set to true if at least one of the questions is in use foreach ($rawquestions as $key => $value) { // Parse input for question ids if (substr($key, 0, 1) == "q") { $key = substr($key,1); $questionlist .= $key.','; if (record_exists('quiz_question_instances', 'question', $key) or record_exists('quiz_states', 'originalquestion', $key)) { $questionnames .= '* '; $inuse = true; } $questionnames .= get_field('quiz_questions', 'name', 'id', $key).'
'; } } if (!$questionlist) { // no questions were selected redirect('edit.php'); } $questionlist = rtrim($questionlist, ','); // Add an explanation about questions in use if ($inuse) { $questionnames .= get_string('questionsinuse', 'quiz'); } print_header_simple($streditingquestions, '', "id\">$strquizzes". " -> $streditingquestions"); notice_yesno(get_string("deletequestionscheck", "quiz", $questionnames), "edit.php?sesskey=$USER->sesskey&deleteselected=$questionlist&confirm=".md5($questionlist), "edit.php"); print_footer($course); exit; } } if (isset($_REQUEST['setgrades']) and confirm_sesskey()) { /// The grades have been updated, so update our internal list $rawgrades = $_POST; unset($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] = $value; quiz_update_question_instance($modform->grades[$key], $key, $modform->instance); } } // If rescaling is required save the new maximum if (isset($_REQUEST['maxgrade'])) { $modform->grade = optional_param('maxgrade', 0); if (!set_field('quiz', 'grade', $modform->grade, 'id', $modform->instance)) { error('Could not set new maximal grade for quiz'); } } } if (isset($_REQUEST['cat'])) { /// coming from category selection drop-down menu $modform->category = $cat; } if(isset($_REQUEST['recurse'])) { $SESSION->quiz_recurse = optional_param('recurse', 0, PARAM_BOOL); } if(isset($_REQUEST['showbreaks'])) { $SESSION->quiz_showbreaks = optional_param('showbreaks', 0, PARAM_BOOL); } if(isset($_REQUEST['showhidden'])) { $SESSION->quiz_showhidden = optional_param('showhidden', 0, PARAM_BOOL); } /// Delete any teacher preview attempts if the quiz has been modified if (isset($_REQUEST['setgrades']) or isset($_REQUEST['delete']) or isset($_REQUEST['repaginate']) or isset($_REQUEST['addrandom']) or isset($_REQUEST['addquestion']) or isset($_REQUEST['up']) or isset($_REQUEST['down']) or isset($_REQUEST['add'])) { delete_records('quiz_attempts', 'preview', '1', 'quiz', $modform->id); } /// all commands have been dealt with, now print the page if (empty($modform->category) or !record_exists('quiz_categories', 'id', $modform->category)) { $category = quiz_get_default_category($course->id); $modform->category = $category->id; } if (!isset($SESSION->quiz_recurse)) { $SESSION->quiz_recurse = 1; } if (!isset($SESSION->quiz_showhidden)) { $SESSION->quiz_showhidden = false; } if (!isset($SESSION->quiz_showbreaks)) { $SESSION->quiz_showbreaks = ($CFG->quiz_questionsperpage < 2) ? 0 : 1; } $SESSION->modform = $modform; // Print basic page layout. if (isset($modform->instance) and record_exists_sql("SELECT * FROM {$CFG->prefix}quiz_attempts WHERE quiz = '$modform->instance' AND preview = '0' LIMIT 1")){ // one column layout with table of questions used in this quiz $strupdatemodule = isteacheredit($course->id) ? update_module_button($modform->cmid, $course->id, get_string('modulename', 'quiz')) : ""; print_header_simple($streditingquiz, '', "id\">$strquizzes". " -> instance\">".format_string($modform->name).''. " -> $streditingquiz", "", "", true, $strupdatemodule); $currenttab = 'edit'; $quiz = &$modform; include('tabs.php'); print_simple_box_start("center"); $attemptcount = count_records('quiz_attempts', 'quiz', $modform->instance, 'preview', 0); $strviewallanswers = get_string("viewallanswers","quiz",$attemptcount); $strattemptsexist = get_string("attemptsexist","quiz"); $usercount = count_records_select('quiz_attempts', "quiz = '$modform->id' AND preview = '0'", 'COUNT(DISTINCT userid)'); $strusers = $course->students; if (! $cm = get_coursemodule_from_instance("quiz", $modform->instance, $course->id)) { error("Course Module ID was incorrect"); } notify("$strattemptsexist
id\">$strviewallanswers ($usercount $strusers)"); echo "\n"; echo "

wwwroot/mod/quiz/edit.php\">\n"; echo " id\" />\n"; echo " \n"; echo "

"; echo "\n"; $sumgrades = quiz_print_question_list($modform, false, $SESSION->quiz_showbreaks); if (!set_field('quiz', 'sumgrades', $sumgrades, 'id', $modform->instance)) { error('Failed to set sumgrades'); } print_simple_box_end(); print_footer($course); exit; } if (!isset($modform->instance)) { // one column layout for non-quiz-specific editing page print_header_simple($streditingquestions, '', "id\">$strquizzes". " -> $streditingquestions"); echo ''; echo '

'; } else { // two column layout with quiz info in left column $strupdatemodule = isteacheredit($course->id) ? update_module_button($modform->cmid, $course->id, get_string('modulename', 'quiz')) : ""; print_header_simple($streditingquiz, '', "id\">$strquizzes". " -> instance\">".format_string($modform->name).''. " -> $streditingquiz", "", "", true, $strupdatemodule); $currenttab = 'edit'; $quiz = &$modform; include('tabs.php'); echo ''; echo ''; echo ' '; print_simple_box_start("center", "100%"); $sumgrades = quiz_print_question_list($modform, true, $SESSION->quiz_showbreaks); if (!set_field('quiz', 'sumgrades', $sumgrades, 'id', $modform->instance)) { error('Failed to set sumgrades'); } print_simple_box_end(); echo ' '; } // non-quiz-specific column print_simple_box_start("center", "100%"); // starts with category selection form quiz_print_category_form($course, $modform->category, $SESSION->quiz_recurse, $SESSION->quiz_showhidden); print_simple_box_end(); print_spacer(5,1); // continues with list of questions print_simple_box_start("center", "100%"); quiz_print_cat_question_list($course, $modform->category, isset($modform->instance), $SESSION->quiz_recurse, $page, $perpage, $SESSION->quiz_showhidden); print_simple_box_end(); if (!isset($modform->instance)) { print_continue("index.php?id=$modform->course"); } echo ' '; print_footer($course); ?>