question/import.php

   1 <?php // $Id$
   2 /**
   3  * Import quiz questions into the given category
   4  *
   5  * @author Martin Dougiamas, Howard Miller, and many others.
   6  *         {@link http://moodle.org}
   7  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   8  * @package questionbank
   9  * @subpackage importexport
  10  */
  11
  12     require_once("../config.php");
  13     require_once("editlib.php");
  14     require_once($CFG->libdir . '/uploadlib.php');
  15     require_once($CFG->libdir . '/questionlib.php');
  16     require_once("import_form.php");
  17
  18     list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) = question_edit_setup('import', false, false);
  19
  20    // get display strings
  21     $txt = new stdClass();
  22     $txt->importquestions = get_string("importquestions", "quiz");
  23
  24     list($catid, $catcontext) = explode(',', $pagevars['cat']);
  25     if (!$category = get_record("question_categories", "id", $catid)) {
  26         print_error('nocategory','quiz');
  27     }
  28
  29     //this page can be called without courseid or cmid in which case
  30     //we get the context from the category object.
  31     if ($contexts === null) { // need to get the course from the chosen category
  32         $contexts = new question_edit_contexts(get_context_instance_by_id($category->contextid));
  33         $thiscontext = $contexts->lowest();
  34         if ($thiscontext->contextlevel == CONTEXT_COURSE){
  35             require_login($thiscontext->instanceid, false);
  36         } elseif ($thiscontext->contextlevel == CONTEXT_MODULE){
  37             list($module, $cm) = get_module_from_cmid($thiscontext->instanceid);
  38             require_login($cm->course, false, $cm);
  39         }
  40         $contexts->require_one_edit_tab_cap($edittab);
  41     }
  42
  43     // ensure the files area exists for this course
  44     make_upload_directory("$COURSE->id");
  45
  46     $import_form = new question_import_form($thispageurl, array('contexts'=>$contexts->having_one_edit_tab_cap('import'),
  47                                                         'defaultcategory'=>$pagevars['cat']));
  48
  49     if ($import_form->is_cancelled()){
  50         redirect($thispageurl);
  51     }
  52     //==========
  53     // PAGE HEADER
  54     //==========
  55
  56     if ($cm!==null) {
  57         $strupdatemodule = has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_COURSE, $COURSE->id))
  58             ? update_module_button($cm->id, $COURSE->id, get_string('modulename', $cm->modname))
  59             : "";
  60         $navlinks = array();
  61         $navlinks[] = array('name' => get_string('modulenameplural', $cm->modname), 'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$COURSE->id", 'type' => 'activity');
  62         $navlinks[] = array('name' => format_string($module->name), 'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?id={$cm->id}", 'type' => 'title');
  63         $navlinks[] = array('name' => $txt->importquestions, 'link' => '', 'type' => 'title');
  64         $navigation = build_navigation($navlinks);
  65         print_header_simple($txt->importquestions, '', $navigation, "", "", true, $strupdatemodule);
  66
  67         $currenttab = 'edit';
  68         $mode = 'import';
  69         ${$cm->modname} = $module;
  70         include($CFG->dirroot."/mod/$cm->modname/tabs.php");
  71     } else {
  72         // Print basic page layout.
  73         $navlinks = array();
  74         $navlinks[] = array('name' => $txt->importquestions, 'link' => '', 'type' => 'title');
  75         $navigation = build_navigation($navlinks);
  76
  77         print_header_simple($txt->importquestions, '', $navigation);
  78         // print tabs
  79         $currenttab = 'import';
  80         include('tabs.php');
  81     }
  82
  83
  84     // file upload form sumitted
  85     if ($form = $import_form->get_data()) {
  86
  87         // file checks out ok
  88         $fileisgood = false;
  89
  90         // work out if this is an uploaded file
  91         // or one from the filesarea.
  92         if (!empty($form->choosefile)) {
  93             $importfile = "{$CFG->dataroot}/{$COURSE->id}/{$form->choosefile}";
  94             $realfilename = $form->choosefile;
  95             if (file_exists($importfile)) {
  96                 $fileisgood = true;
  97             } else {
  98                 print_error('uploadproblem', 'moodle', $form->choosefile);
  99             }
 100         } else {
 101             // must be upload file
 102             $realfilename = $import_form->get_importfile_realname();
 103             if (!$importfile = $import_form->get_importfile_name()) {
 104                 print_error('uploadproblem', 'moodle');
 105             }else {
 106                 $fileisgood = true;
 107             }
 108         }
 109
 110         // process if we are happy file is ok
 111         if ($fileisgood) {
 112
 113             if (! is_readable("format/$form->format/format.php")) {
 114                 print_error('formatnotfound','quiz', $form->format);
 115             }
 116
 117             require_once("format.php");  // Parent class
 118             require_once("format/$form->format/format.php");
 119
 120             $classname = "qformat_$form->format";
 121             $qformat = new $classname();
 122
 123             // load data into class
 124             $qformat->setCategory($category);
 125             $qformat->setContexts($contexts->having_one_edit_tab_cap('import'));
 126             $qformat->setCourse($COURSE);
 127             $qformat->setFilename($importfile);
 128             $qformat->setRealfilename($realfilename);
 129             $qformat->setMatchgrades($form->matchgrades);
 130             $qformat->setCatfromfile(!empty($form->catfromfile));
 131             $qformat->setContextfromfile(!empty($form->contextfromfile));
 132             $qformat->setStoponerror($form->stoponerror);
 133
 134             // Do anything before that we need to
 135             if (! $qformat->importpreprocess()) {
 136                 print_error('importerror', 'quiz', $thispageurl->out());
 137             }
 138
 139             // Process the uploaded file
 140             if (! $qformat->importprocess()) {
 141                 print_error('importerror', 'quiz', $thispageurl->out());
 142             }
 143
 144             // In case anything needs to be done after
 145             if (! $qformat->importpostprocess()) {
 146                 print_error('importerror', 'quiz', $thispageurl->out());
 147             }
 148
 149             echo "<hr />";
 150             print_continue("edit.php?".($thispageurl->get_query_string(array('category'=>"{$qformat->category->id},{$qformat->category->contextid}"))));
 151             print_footer($COURSE);
 152             exit;
 153         }
 154     }
 155
 156     print_heading_with_help($txt->importquestions, "import", "quiz");
 157
 158     /// Print upload form
 159     $import_form->display();
 160     print_footer($COURSE);
 161
 162 ?>