group/group.php

   1 <?php
   2 /**
   3  * Create group OR edit group settings.
   4  *
   5  * @copyright &copy; 2006 The Open University
   6  * @author N.D.Freear AT open.ac.uk
   7  * @author J.White AT open.ac.uk
   8  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9  * @package groups
  10  */
  11 require_once('../config.php');
  12 require_once('lib.php');
  13 require_once($CFG->libdir.'/moodlelib.php');
  14 require_once($CFG->libdir.'/uploadlib.php');
  15
  16 $success = true;
  17 $err = array();
  18
  19 $courseid   = required_param('courseid', PARAM_INT);
  20 $groupingid = optional_param('grouping', false, PARAM_INT);
  21 $newgrouping= optional_param('newgrouping', false, PARAM_INT);
  22 $groupid    = optional_param('group', false, PARAM_INT);
  23
  24 $groupsettings->name       = optional_param('name', false, PARAM_TEXT);
  25 $groupsettings->description= optional_param('description', '', PARAM_TEXT);
  26 $groupsettings->enrolmentkey= optional_param('enrolmentkey', '', PARAM_TEXT);
  27 $groupsettings->hidepicture= optional_param('hidepicture', true, PARAM_BOOL);
  28
  29 $delete = optional_param('delete', false, PARAM_BOOL);
  30
  31 // Get the course information so we can print the header and
  32 // check the course id is valid
  33 $course = groups_get_course_info($courseid);
  34 if (! $course) {
  35     $success = false;
  36     print_error('invalidcourse'); //'The course ID is invalid'
  37 }
  38 if ($delete && !$groupid) {
  39     $success = false;
  40     print_error('errorinvalidgroup', 'group', groups_home_url($courseid));
  41 }
  42
  43 if ($success) {
  44     // Make sure that the user has permissions to manage groups.
  45     require_login($courseid);
  46
  47     $context = get_context_instance(CONTEXT_COURSE, $courseid);
  48     if (! has_capability('moodle/course:managegroups', $context)) {
  49         redirect();
  50     }
  51
  52 /// If data submitted, then process and store.
  53
  54     if ($frm = data_submitted() and confirm_sesskey()) {
  55
  56         if (isset($frm->cancel)) {
  57             redirect(groups_home_url($courseid, $groupid, $groupingid, false));
  58         }
  59         elseif (isset($frm->confirmdelete)) {
  60             if ($success = groups_delete_group($groupid)) {
  61                 redirect(groups_home_url($courseid, null, $groupingid, false));
  62             } else {
  63                 print_error('erroreditgroup', 'group', groups_home_url($courseid));
  64             }
  65         }
  66         elseif (empty($frm->name)) {
  67             $err['name'] = get_string('missingname');
  68         }
  69         elseif (isset($frm->update)) {
  70             if (! $groupid) { //OK, new group.
  71                 if (GROUP_NOT_IN_GROUPING == $groupingid) {
  72                     print_error('errornotingrouping', 'group', groups_home_url($courseid), get_string('notingrouping', 'group'));
  73                 }
  74                 $success = (bool)$groupid = groups_create_group($courseid); //$groupsettings);
  75                 $success = groups_add_group_to_grouping($groupid, $groupingid);
  76             }
  77             elseif ($groupingid != $newgrouping) { //OK, move group.
  78                 if (GROUP_NOT_IN_GROUPING == $newgrouping) {
  79                     print_error('errornotingrouping', 'group', groups_home_url($courseid), get_string('notingrouping', 'group'));
  80                 }
  81                 $success = $success && groups_remove_group_from_grouping($groupid, $groupingid);
  82                 $success = $success && groups_add_group_to_grouping($groupid, $newgrouping);
  83             }
  84             if ($success) {
  85                 //require_once($CFG->dirroot.'/lib/uploadlib.php');
  86
  87                 $um = new upload_manager('imagefile',false,false,$course=null,false,$modbytes=0,$silent=false,$allownull=true);
  88                 if ($um->preprocess_files()) {
  89                     require_once("$CFG->libdir/gdlib.php");
  90
  91                     if (save_profile_image($groupid, $um, 'groups')) {
  92                         $groupsettings->picture = 1;
  93                     }
  94                 } else {
  95                     $success = false;
  96                 }
  97             }
  98             $success = $success && groups_set_group_settings($groupid, $groupsettings);
  99
 100             if ($success) {
 101                 redirect(groups_home_url($courseid, $groupid, $groupingid, false));
 102             }
 103             else {
 104                 print_error('erroreditgroup', 'group', groups_home_url($courseid));
 105             }
 106         }
 107     }
 108
 109 /// OR, prepare the form.
 110
 111     if ($groupid) {
 112         // Form to edit existing group.
 113         $group = groups_get_group_settings($groupid);
 114         if (! $group) {
 115             print_error('errorinvalidgroup', 'group', groups_home_url($courseid));
 116         }
 117         $strname = s($group->name);
 118         $strdesc = s($group->description);
 119
 120         $strbutton  = get_string('save', 'group');
 121         $strheading = get_string('editgroupsettings', 'group');
 122     } else {
 123         // Form to create a new one.
 124         $strname = get_string('defaultgroupname', 'group');
 125         $strdesc = '';
 126         $strbutton = $strheading = get_string('creategroup', 'group');
 127     }
 128     $strgroups = get_string('groups');
 129     $strparticipants = get_string('participants');
 130     if ($delete) {
 131         $strheading = get_string('deleteselectedgroup', 'group');
 132     } //else { $strheader = get_string('groupinfoedit'); }
 133
 134     $maxbytes = get_max_upload_file_size($CFG->maxbytes, $course->maxbytes);
 135     if (!empty($CFG->gdversion) and $maxbytes) {
 136         $printuploadpicture = true;
 137     } else {
 138         $printuploadpicture = false;
 139     }
 140
 141 /// Print the page and form
 142
 143     print_header("$course->shortname: ". $strheading,
 144                  $course->fullname,
 145                  "<a href=\"$CFG->wwwroot/course/view.php?id=$courseid\">$course->shortname</a> ".
 146                  "-> <a href=\"$CFG->wwwroot/user/index.php?id=$courseid\">$strparticipants</a> ".
 147                  "-> $strgroups", '', '', true, '', user_login_string($course, $USER));
 148
 149     $usehtmleditor = false;
 150 ?>
 151 <h3 class="main"><?php echo $strheading ?></h3>
 152
 153 <form action="group.php" method="post" enctype="multipart/form-data" class="mform notmform" id="groupform">
 154
 155 <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
 156 <input type="hidden" name="courseid" value="<?php p($courseid); ?>" />
 157 <input type="hidden" name="grouping" value="<?php p($groupingid); ?>" />
 158 <?php
 159     if ($groupid) {
 160         echo '<input type="hidden" name="group" value="'. $groupid .'" />';
 161     }
 162
 163     if ($delete) {
 164         /*echo 'Are you sure you want to delete group X ?';
 165         choose_from_menu_yesno('confirmdelete', false, '', true);*/
 166 ?>
 167
 168         <p><?php print_string('deletegroupconfirm', 'group', $strname); ?></p>
 169         <input type="hidden" name="delete" value="1" />
 170         <input type="submit" name="confirmdelete" value="<?php print_string('yes'); ?>" />
 171         <input type="submit" name="cancel" value="<?php print_string('no'); ?>" />
 172 <?php
 173     } else {
 174 ?>
 175
 176 <div class="fitem">
 177 <p><label for="groupname"><?php
 178    print_string('groupname', 'group');
 179    if (isset($err['name'])) {
 180        echo' ';
 181        formerr($err['name']);
 182    } ?>&nbsp; </label></p>
 183 <p class="felement"><input id="groupname" name="name" type="text" size="40" value="<?php echo $strname; ?>" /></p>
 184 </div>
 185
 186 <p><label for="edit-description"><?php print_string('groupdescription', 'group'); ?>&nbsp;</label></p>
 187 <p><?php print_textarea($usehtmleditor, 5, 45, 200, 400, 'description', $strdesc); ?></p>
 188
 189 <p><label for="enrolmentkey"><?php print_string('enrolmentkey', 'group'); ?>&nbsp;</label></p>
 190 <p><input id="enrolmentkey" name="enrolmentkey" type="text" size="25" /></p>
 191
 192 <?php if ($printuploadpicture) {  ?>
 193     <p><label for="menuhidepicture"><?php print_string('hidepicture', 'group'); ?>&nbsp;</label></p>
 194     <p><?php $options = array();
 195              $options[0] = get_string('no');
 196              $options[1] = get_string('yes');
 197              choose_from_menu($options, 'hidepicture', isset($group)? $group->hidepicture: 1, '');?></p>
 198
 199     <p><label ><?php /* for="imagefile" */ print_string('newpicture', 'group');
 200         helpbutton('picture', get_string('helppicture'));
 201         print_string('maxsize', '', display_size($maxbytes), 'group');
 202         if (isset($err['imagefile'])) formerr($err['imagefile']);
 203      ?>&nbsp;</label></p>
 204     <p><?php upload_print_form_fragment(1, array('imagefile'), null,false,null,0,0,false); ?></p>
 205 <?php
 206     }
 207
 208     if ($groupid) { //OK, editing - option to move grouping.
 209 ?>
 210     <p><label for="groupings"><?php print_string('addgroupstogrouping', 'group'); ?></label></p>
 211     <select name="newgrouping" id="groupings" class="select">
 212 <?php
 213     $groupingids = groups_get_groupings($courseid);
 214     if (GROUP_NOT_IN_GROUPING == $groupingid) {
 215         $groupingids[] = GROUP_NOT_IN_GROUPING;
 216     }
 217     if ($groupingids) {
 218         // Put the groupings into a hash and sort them
 219         foreach($groupingids as $id) {
 220             $listgroupings[$id] = groups_get_grouping_displayname($id, $courseid);
 221         }
 222         natcasesort($listgroupings);
 223
 224         // Print out the HTML
 225         $count = 1;
 226         foreach($listgroupings as $id => $name) {
 227             $select = '';
 228             if ($groupingid == $id) {
 229                 $select = ' selected="selected"';
 230             }
 231             echo "<option value=\"$id\"$select>$name</option>\n";
 232             $count++;
 233         }
 234     }
 235 ?>
 236     </select>
 237 <?php } //IF($groupid) ?>
 238
 239 <p class="fitem">
 240   <label for="id_submit">&nbsp;</label>
 241   <span class="f--element fsubmit">
 242     <input type="submit" name="update" id="id_submit" value="<?php echo $strbutton; ?>" />
 243     <input type="submit" name="cancel" value="<?php print_string('cancel', 'group'); ?>" />
 244   </span>
 245 </p>
 246
 247 <?php } //IF($delete) ?>
 248
 249 <span class="clearer">&nbsp;</span>
 250
 251 </form>
 252 <?php
 253     print_footer($course);
 254 }
 255
 256 ?>