question/export.php

   1 <?php // $Id$
   2 /**
   3  * Export 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
  15     list($thispageurl, $courseid, $cmid, $cm, $module, $pagevars) = question_edit_setup();
  16
  17     $cattofile = optional_param('cattofile',0, PARAM_BOOL);
  18
  19     $exportfilename = optional_param('exportfilename','',PARAM_FILE );
  20     $format = optional_param('format','', PARAM_FILE );
  21     $categoryid = optional_param('category',0,PARAM_INT);
  22
  23     // get display strings
  24     $txt = new object;
  25     $txt->category = get_string('category','quiz');
  26     $txt->download = get_string('download','quiz');
  27     $txt->downloadextra = get_string('downloadextra','quiz');
  28     $txt->exporterror = get_string('exporterror','quiz');
  29     $txt->exportname = get_string('exportname','quiz');
  30     $txt->exportquestions = get_string('exportquestions', 'quiz');
  31     $txt->fileformat = get_string('fileformat','quiz');
  32     $txt->exportcategory = get_string('exportcategory','quiz');
  33     $txt->modulename = get_string('modulename','quiz');
  34     $txt->modulenameplural = get_string('modulenameplural','quiz');
  35     $txt->tofile = get_string('tofile','quiz');
  36
  37
  38     if (!$course = get_record("course", "id", $courseid)) {
  39         error("Course does not exist!");
  40     }
  41
  42     // make sure we are using the user's most recent category choice
  43     if (empty($categoryid)) {
  44         $categoryid = $pagevars['cat'];
  45     }
  46
  47     if (!$category = get_record("question_categories", "id", $categoryid)) {
  48         $category = get_default_question_category($courseid);
  49     }
  50
  51     if (!$categorycourse = get_record("course", "id", $category->course)) {
  52         print_error('nocategory','quiz');
  53     }
  54
  55
  56     // check role capability
  57     $context = get_context_instance(CONTEXT_COURSE, $course->id);
  58     require_capability('moodle/question:export', $context);
  59
  60     // ensure the files area exists for this course
  61     make_upload_directory( "$course->id" );
  62
  63     // check category is valid
  64     $validcats = question_category_options( $course->id, true, false );
  65     if (!array_key_exists( $categoryid, $validcats)) {
  66         print_error( 'invalidcategory','quiz' );
  67     }
  68
  69     /// Header
  70     if ($cm!==null) {
  71         $strupdatemodule = has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_COURSE, $course->id))
  72             ? update_module_button($cm->id, $course->id, get_string('modulename', $cm->modname))
  73             : "";
  74         $navlinks = array();
  75         $navlinks[] = array('name' => get_string('modulenameplural', $cm->modname), 'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$course->id", 'type' => 'activity');
  76         $navlinks[] = array('name' => format_string($module->name), 'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?cmid={$cm->id}", 'type' => 'title');
  77         $navlinks[] = array('name' => $txt->exportquestions, 'link' => '', 'type' => 'title');
  78         $navigation = build_navigation($navlinks);
  79         print_header_simple($txt->exportquestions, '', $navigation, "", "", true, $strupdatemodule);
  80
  81         $currenttab = 'edit';
  82         $mode = 'export';
  83         ${$cm->modname} = $module;
  84         include($CFG->dirroot."/mod/$cm->modname/tabs.php");
  85     } else {
  86         // Print basic page layout.
  87         $navlinks = array();
  88         $navlinks[] = array('name' => $txt->exportquestions, 'link' => '', 'type' => 'title');
  89         $navigation = build_navigation($navlinks);
  90
  91         print_header_simple($txt->exportquestions, '', $navigation);
  92         // print tabs
  93         $currenttab = 'export';
  94         include('tabs.php');
  95     }
  96
  97     if (!empty($format)) {   /// Filename
  98
  99         if (!confirm_sesskey()) {
 100             print_error( 'sesskey' );
 101         }
 102
 103         if (! is_readable("format/$format/format.php")) {
 104             error( "Format not known ($format)" );  }
 105
 106         // load parent class for import/export
 107         require("format.php");
 108
 109         // and then the class for the selected format
 110         require("format/$format/format.php");
 111
 112         $classname = "qformat_$format";
 113         $qformat = new $classname();
 114
 115         $qformat->setCategory( $category );
 116         $qformat->setCourse( $course );
 117         $qformat->setFilename( $exportfilename );
 118         $qformat->setCattofile( $cattofile );
 119
 120         if (! $qformat->exportpreprocess()) {   // Do anything before that we need to
 121             error( $txt->exporterror, $thispageurl->out());
 122         }
 123
 124         if (! $qformat->exportprocess()) {         // Process the export data
 125             error( $txt->exporterror, $thispageurl->out());
 126         }
 127
 128         if (! $qformat->exportpostprocess()) {                    // In case anything needs to be done after
 129             error( $txt->exporterror, $thispageurl->out());
 130         }
 131         echo "<hr />";
 132
 133         // link to download the finished file
 134         $file_ext = $qformat->export_file_extension();
 135         if ($CFG->slasharguments) {
 136           $efile = "{$CFG->wwwroot}/file.php/".$qformat->question_get_export_dir()."/$exportfilename".$file_ext."?forcedownload=1";
 137         }
 138         else {
 139           $efile = "{$CFG->wwwroot}/file.php?file=/".$qformat->question_get_export_dir()."/$exportfilename".$file_ext."&forcedownload=1";
 140         }
 141         echo "<p><div class=\"boxaligncenter\"><a href=\"$efile\">$txt->download</a></div></p>";
 142         echo "<p><div class=\"boxaligncenter\"><font size=\"-1\">$txt->downloadextra</font></div></p>";
 143
 144         print_continue("edit.php?".$thispageurl->get_query_string());
 145         print_footer($course);
 146         exit;
 147     }
 148
 149     /// Display upload form
 150
 151     // get valid formats to generate dropdown list
 152     $fileformatnames = get_import_export_formats( 'export' );
 153
 154     // get filename
 155     if (empty($exportfilename)) {
 156         $exportfilename = default_export_filename($course, $category);
 157     }
 158
 159     print_heading_with_help($txt->exportquestions, 'export', 'quiz');
 160     print_simple_box_start('center');
 161 ?>
 162
 163     <form enctype="multipart/form-data" method="post" action="export.php">
 164         <fieldset class="invisiblefieldset" style="display: block;">
 165             <input type="hidden" name="sesskey" value="<?php echo sesskey(); ?>" />
 166             <?php echo $thispageurl->hidden_params_out(array(), 3); ?>
 167             <table cellpadding="5">
 168                 <tr>
 169                     <td align="right"><?php echo $txt->category; ?>:</td>
 170                     <td>
 171                         <?php
 172                         question_category_select_menu($course->id, true, false, $category->id);
 173                         echo $txt->tofile; ?>
 174                         <input name="cattofile" type="checkbox" />
 175                         <?php helpbutton('exportcategory', $txt->exportcategory, 'quiz'); ?>
 176                     </td>
 177                 </tr>
 178                 <tr>
 179                     <td align="right"><?php echo $txt->fileformat; ?>:</td>
 180                     <td>
 181                         <?php choose_from_menu($fileformatnames, 'format', 'gift', '');
 182                         helpbutton('export', $txt->exportquestions, 'quiz'); ?>
 183                     </td>
 184                 </tr>
 185                 <tr>
 186                     <td align="right"><?php echo $txt->exportname; ?>:</td>
 187                     <td>
 188                         <input type="text" size="40" name="exportfilename" value="<?php echo $exportfilename; ?>" />
 189                     </td>
 190                 </tr>
 191                 <tr>
 192                     <td align="center" >
 193                         <input type="submit" name="save" value="<?php echo $txt->exportquestions; ?>" />
 194                     </td>
 195                     <td>&nbsp;</td>
 196                 </tr>
 197             </table>
 198         </fieldset>
 199     </form>
 200     <?php
 201
 202     print_simple_box_end();
 203     print_footer($course);
 204 ?>
 205