question/import.php

   1 <?php
   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"); // Includes lib/questionlib.php
  14 require_once($CFG->libdir . '/uploadlib.php');
  15 require_once("import_form.php");
  16
  17 list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) =
  18         question_edit_setup('import', '/question/import.php', 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 = $DB->get_record("question_categories", array("id" => $catid))) {
  27     print_error('nocategory','quiz');
  28 }
  29
  30 $PAGE->set_pagelayout('standard');
  31
  32 //this page can be called without courseid or cmid in which case
  33 //we get the context from the category object.
  34 if ($contexts === null) { // need to get the course from the chosen category
  35     $contexts = new question_edit_contexts(get_context_instance_by_id($category->contextid));
  36     $thiscontext = $contexts->lowest();
  37     if ($thiscontext->contextlevel == CONTEXT_COURSE){
  38         require_login($thiscontext->instanceid, false);
  39     } elseif ($thiscontext->contextlevel == CONTEXT_MODULE){
  40         list($module, $cm) = get_module_from_cmid($thiscontext->instanceid);
  41         require_login($cm->course, false, $cm);
  42     }
  43     $contexts->require_one_edit_tab_cap($edittab);
  44 }
  45
  46 // ensure the files area exists for this course
  47 make_upload_directory("$COURSE->id");
  48
  49 $PAGE->set_url($thispageurl->out());
  50
  51 $import_form = new question_import_form($thispageurl, array('contexts'=>$contexts->having_one_edit_tab_cap('import'),
  52                                                     'defaultcategory'=>$pagevars['cat']));
  53
  54 if ($import_form->is_cancelled()){
  55     redirect($thispageurl);
  56 }
  57 //==========
  58 // PAGE HEADER
  59 //==========
  60 $PAGE->set_title($txt->importquestions);
  61 $PAGE->set_heading($COURSE->fullname);
  62 echo $OUTPUT->header();
  63
  64 // file upload form sumitted
  65 if ($form = $import_form->get_data()) {
  66
  67     // file checks out ok
  68     $fileisgood = false;
  69
  70     // work out if this is an uploaded file
  71     // or one from the filesarea.
  72     if (!empty($form->choosefile)) {
  73         $importfile = "{$CFG->dataroot}/{$COURSE->id}/{$form->choosefile}";
  74         $realfilename = $form->choosefile;
  75         if (file_exists($importfile)) {
  76             $fileisgood = true;
  77         } else {
  78             print_error('uploadproblem', 'moodle', $form->choosefile);
  79         }
  80     } else {
  81         $realfilename = $import_form->get_new_filename('newfile');
  82         $importfile = "{$CFG->dataroot}/{$COURSE->id}/{$realfilename}";
  83         if (!$result = $import_form->save_file('newfile', $importfile, true)) {
  84             print_error('uploadproblem', 'moodle');
  85         }else {
  86             $fileisgood = true;
  87         }
  88     }
  89
  90     // process if we are happy file is ok
  91     if ($fileisgood) {
  92
  93         if (! is_readable("format/$form->format/format.php")) {
  94             print_error('formatnotfound','quiz', $form->format);
  95         }
  96
  97         require_once("format.php");  // Parent class
  98         require_once("format/$form->format/format.php");
  99
 100         $classname = "qformat_$form->format";
 101         $qformat = new $classname();
 102
 103         // load data into class
 104         $qformat->setCategory($category);
 105         $qformat->setContexts($contexts->having_one_edit_tab_cap('import'));
 106         $qformat->setCourse($COURSE);
 107         $qformat->setFilename($importfile);
 108         $qformat->setRealfilename($realfilename);
 109         $qformat->setMatchgrades($form->matchgrades);
 110         $qformat->setCatfromfile(!empty($form->catfromfile));
 111         $qformat->setContextfromfile(!empty($form->contextfromfile));
 112         $qformat->setStoponerror($form->stoponerror);
 113
 114         // Do anything before that we need to
 115         if (! $qformat->importpreprocess()) {
 116             //TODO: need more detailed error info
 117             print_error('cannotimport', '', $thispageurl->out());
 118         }
 119
 120         // Process the uploaded file
 121         if (! $qformat->importprocess()) {
 122             //TODO: need more detailed error info
 123             print_error('cannotimport', '', $thispageurl->out());
 124         }
 125
 126         // In case anything needs to be done after
 127         if (! $qformat->importpostprocess()) {
 128             //TODO: need more detailed error info
 129             print_error('cannotimport', '', $thispageurl->out());
 130         }
 131
 132         echo '<hr />';
 133         $params = $thispageurl->params() + array('category'=>"{$qformat->category->id},{$qformat->category->contextid}");
 134         echo $OUTPUT->continue_button(new moodle_url('edit.php', $params));
 135         echo $OUTPUT->footer();
 136         exit;
 137     }
 138 }
 139
 140 echo $OUTPUT->heading_with_help($txt->importquestions, 'import', 'quiz');
 141
 142 /// Print upload form
 143 $import_form->display();
 144 echo $OUTPUT->footer();