question/export.php

   1 <?php // $Id$
   2 /**
   3 * Export quiz questions into the given category
   4 *
   5 * @version $Id$
   6 * @author Martin Dougiamas, Howard Miller, and many others.
   7 *         {@link http://moodle.org}
   8 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9 * @package quiz
  10 */
  11
  12     require_once("../config.php");
  13     require_once( "editlib.php" );
  14
  15     $categoryid = optional_param('category',0, PARAM_INT);
  16     $courseid = required_param('courseid',PARAM_INT);
  17     $format = optional_param('format','', PARAM_FILE );
  18     $exportfilename = optional_param('exportfilename','',PARAM_FILE );
  19
  20     if (! $course = get_record("course", "id", $courseid)) {
  21         error("Course does not exist!");
  22     }
  23
  24     $showcatmenu = false;
  25     if ($categoryid) { // update category in session variable
  26         $SESSION->questioncat = $categoryid;
  27     } else { // try to get category from modform
  28         $showcatmenu = true; // will ensure that user can choose category
  29         if (isset($SESSION->questioncat)) {
  30             $categoryid = $SESSION->questioncat;
  31         }
  32     }
  33
  34     if (! $category = get_record("question_categories", "id", $categoryid)) {
  35         $category = get_default_question_category($courseid);
  36     }
  37
  38     if (! $categorycourse = get_record("course", "id", $category->course)) {
  39         error( get_string('nocategory','quiz') );
  40     }
  41
  42     require_login($course->id, false);
  43
  44     $context = get_context_instance(CONTEXT_COURSE, $course->id);
  45     require_capability('moodle/question:export', $context);
  46
  47     // ensure the files area exists for this course
  48     make_upload_directory( "$course->id" );
  49
  50     $strexportquestions = get_string("exportquestions", "quiz");
  51     $strquestions = get_string("questions", "quiz");
  52
  53     $strquizzes = get_string('modulenameplural', 'quiz');
  54     $streditingquiz = get_string(isset($SESSION->modform->instance) ? "editingquiz" : "editquestions", "quiz");
  55
  56     $dirname = get_string("exportfilename","quiz");
  57
  58     /// Header:
  59
  60     if (isset($SESSION->modform->instance) and $quiz = get_record('quiz', 'id', $SESSION->modform->instance)) {
  61         $strupdatemodule = has_capability('moodle/course:manageactivities', $context)
  62             ? update_module_button($SESSION->modform->cmid, $course->id, get_string('modulename', 'quiz'))
  63             : "";
  64         print_header_simple($strexportquestions, '',
  65                  "<a href=\"$CFG->wwwroot/mod/quiz/index.php?id=$course->id\">".get_string('modulenameplural', 'quiz').'</a>'.
  66                  " -> <a href=\"$CFG->wwwroot/mod/quiz/view.php?q=$quiz->id\">".format_string($quiz->name).'</a>'.
  67                  ' -> '.$strexportquestions,
  68                  "", "", true, $strupdatemodule);
  69         $currenttab = 'edit';
  70         $mode = 'export';
  71         include($CFG->dirroot.'/mod/quiz/tabs.php');
  72     } else {
  73         print_header_simple($strexportquestions, '', $strexportquestions);
  74         // print tabs
  75         $currenttab = 'export';
  76         include('tabs.php');
  77     }
  78
  79     if (!empty($format)) {   /// Filename
  80
  81         if (!confirm_sesskey()) {
  82             echo( 'Sesskey error' );
  83         }
  84
  85         if (! is_readable("format/$format/format.php")) {
  86             error('Format not known ('.clean_text($form->format).')');
  87         }
  88
  89         require("format.php");  // Parent class
  90         require("format/$format/format.php");
  91
  92         $classname = "qformat_$format";
  93         $qformat = new $classname();
  94
  95         if (! $qformat->exportpreprocess($category, $course)) {   // Do anything before that we need to
  96             error( get_string('exporterror','quiz'),
  97                     "$CFG->wwwroot/question/export.php?courseid={$course->id}&amp;category=$category->id");
  98         }
  99
 100         if (! $qformat->exportprocess($exportfilename)) {         // Process the export data
 101             error( get_string('exporterror','quiz'),
 102                     "$CFG->wwwroot/question/export.php?courseid={$course->id}&amp;category=$category->id");
 103         }
 104
 105         if (! $qformat->exportpostprocess()) {                    // In case anything needs to be done after
 106             error( get_string('exporterror','quiz'),
 107                     "$CFG->wwwroot/question/export.php?courseid={$course->id}&amp;category=$category->id");
 108         }
 109         echo "<hr />";
 110
 111         // link to download the finished file
 112         $file_ext = $qformat->export_file_extension();
 113         $download_str = get_string( 'download', 'quiz' );
 114         $downloadextra_str = get_string( 'downloadextra','quiz' );
 115         if ($CFG->slasharguments) {
 116           $efile = "{$CFG->wwwroot}/file.php/".$qformat->question_get_export_dir()."/$exportfilename".$file_ext."?forcedownload=1";
 117         }
 118         else {
 119           $efile = "{$CFG->wwwroot}/file.php?file=/".$qformat->question_get_export_dir()."/$exportfilename".$file_ext."&forcedownload=1";
 120         }
 121         echo "</p><center><a href=\"$efile\">$download_str</a></center></p>";
 122         echo "</p><center><font size=\"-1\">$downloadextra_str</font></center></p>";
 123
 124         print_continue("edit.php?courseid=$course->id");
 125         print_footer($course);
 126         exit;
 127     }
 128
 129     /// Print upload form
 130
 131     // get valid formats to generate dropdown list
 132     $fileformatnames = get_import_export_formats( "export" );
 133
 134     // get filename
 135     if (empty($exportfilename)) {
 136         $exportfilename = default_export_filename($course, $category);
 137     }
 138
 139     print_heading_with_help($strexportquestions, "export", "quiz");
 140
 141     print_simple_box_start("center");
 142     echo "<form enctype=\"multipart/form-data\" method=\"post\" action=\"export.php\">\n";
 143     echo "<input type=\"hidden\" name=\"sesskey\" value=\"" . sesskey() . "\" />\n";
 144     echo "<table cellpadding=\"5\">\n";
 145
 146     echo "<tr><td align=\"right\">\n";
 147     print_string("category", "quiz");
 148     echo ":</td><td>";
 149     if (!$showcatmenu) { // category already specified
 150         echo question_category_coursename($category);
 151         echo " <input type=\"hidden\" name=\"category\" value=\"$category->id\" />";
 152     } else { // no category specified, let user choose
 153         question_category_select_menu($course->id, true, false, $category->id);
 154     }
 155     //echo str_replace('&nbsp;', '', $category->name) . " ($categorycourse->shortname)";
 156     echo "</td></tr>\n";
 157
 158     echo "<tr><td align=\"right\">";
 159     print_string("fileformat", "quiz");
 160     echo ":</td><td>";
 161     choose_from_menu($fileformatnames, "format", "gift", "");
 162     helpbutton("export", $strexportquestions, "quiz");
 163     echo "</td></tr>\n";
 164
 165     echo "<tr><td align=\"right\">";
 166     print_string("exportname", "quiz" );
 167     echo ":</td><td>";
 168     echo "<input type=\"text\" size=\"40\" name=\"exportfilename\" value=\"$exportfilename\" />";
 169     echo "</td></tr>\n";
 170
 171     echo "<tr><td align=\"center\" colspan=\"2\">";
 172     echo " <input type=\"hidden\" name=\"courseid\" value=\"$course->id\" />";
 173     echo " <input type=\"submit\" name=\"save\" value=\"".get_string("exportquestions","quiz")."\" />";
 174     echo "</td></tr>\n";
 175
 176     echo "</table>\n";
 177     echo "</form>\n";
 178     print_simple_box_end();
 179
 180     print_footer($course);
 181
 182 ?>