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("import_form.php");
  15
  16 list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) =
  17         question_edit_setup('import', '/question/import.php', false, false);
  18
  19 // get display strings
  20 $txt = new stdClass();
  21 $txt->importerror = get_string('importerror','quiz');
  22 $txt->importquestions = get_string('importquestions', 'question');
  23
  24 list($catid, $catcontext) = explode(',', $pagevars['cat']);
  25 if (!$category = $DB->get_record("question_categories", array("id" => $catid))) {
  26     print_error('nocategory','quiz');
  27 }
  28
  29 $PAGE->set_pagelayout('standard');
  30
  31 //this page can be called without courseid or cmid in which case
  32 //we get the context from the category object.
  33 if ($contexts === null) { // need to get the course from the chosen category
  34     $contexts = new question_edit_contexts(get_context_instance_by_id($category->contextid));
  35     $thiscontext = $contexts->lowest();
  36     if ($thiscontext->contextlevel == CONTEXT_COURSE){
  37         require_login($thiscontext->instanceid, false);
  38     } elseif ($thiscontext->contextlevel == CONTEXT_MODULE){
  39         list($module, $cm) = get_module_from_cmid($thiscontext->instanceid);
  40         require_login($cm->course, false, $cm);
  41     }
  42     $contexts->require_one_edit_tab_cap($edittab);
  43 }
  44
  45 $PAGE->set_url($thispageurl->out());
  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 $PAGE->set_title($txt->importquestions);
  57 $PAGE->set_heading($COURSE->fullname);
  58 echo $OUTPUT->header();
  59
  60 // file upload form sumitted
  61 if ($form = $import_form->get_data()) {
  62
  63     // file checks out ok
  64     $fileisgood = false;
  65
  66     // work out if this is an uploaded file
  67     // or one from the filesarea.
  68     if (!empty($form->choosefile)) {
  69         $importfile = "{$CFG->dataroot}/{$COURSE->id}/{$form->choosefile}";
  70         $realfilename = $form->choosefile;
  71         if (file_exists($importfile)) {
  72             $fileisgood = true;
  73         } else {
  74             print_error('uploadproblem', 'moodle', $form->choosefile);
  75         }
  76     } else {
  77         $realfilename = $import_form->get_new_filename('newfile');
  78         $importfile = "{$CFG->dataroot}/{$COURSE->id}/{$realfilename}";
  79         if (!$result = $import_form->save_file('newfile', $importfile, true)) {
  80             print_error('uploadproblem', 'moodle');
  81         }else {
  82             $fileisgood = true;
  83         }
  84     }
  85
  86     // process if we are happy file is ok
  87     if ($fileisgood) {
  88
  89         if (! is_readable("format/$form->format/format.php")) {
  90             print_error('formatnotfound','quiz', $form->format);
  91         }
  92
  93         require_once("format.php");  // Parent class
  94         require_once("format/$form->format/format.php");
  95
  96         $classname = "qformat_$form->format";
  97         $qformat = new $classname();
  98
  99         // load data into class
 100         $qformat->setCategory($category);
 101         $qformat->setContexts($contexts->having_one_edit_tab_cap('import'));
 102         $qformat->setCourse($COURSE);
 103         $qformat->setFilename($importfile);
 104         $qformat->setRealfilename($realfilename);
 105         $qformat->setMatchgrades($form->matchgrades);
 106         $qformat->setCatfromfile(!empty($form->catfromfile));
 107         $qformat->setContextfromfile(!empty($form->contextfromfile));
 108         $qformat->setStoponerror($form->stoponerror);
 109
 110         // Do anything before that we need to
 111         if (! $qformat->importpreprocess()) {
 112             //TODO: need more detailed error info
 113             print_error('cannotimport', '', $thispageurl->out());
 114         }
 115
 116         // Process the uploaded file
 117         if (! $qformat->importprocess()) {
 118             //TODO: need more detailed error info
 119             print_error('cannotimport', '', $thispageurl->out());
 120         }
 121
 122         // In case anything needs to be done after
 123         if (! $qformat->importpostprocess()) {
 124             //TODO: need more detailed error info
 125             print_error('cannotimport', '', $thispageurl->out());
 126         }
 127
 128         echo '<hr />';
 129         $params = $thispageurl->params() + array('category'=>"{$qformat->category->id},{$qformat->category->contextid}");
 130         echo $OUTPUT->continue_button(new moodle_url('edit.php', $params));
 131         echo $OUTPUT->footer();
 132         exit;
 133     }
 134 }
 135
 136 echo $OUTPUT->heading_with_help($txt->importquestions, 'importquestions', 'question');
 137
 138 /// Print upload form
 139 $import_form->display();
 140 echo $OUTPUT->footer();