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