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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Manual user enrolment UI.
  19   *
  20   * @package    enrol_manual
  21   * @copyright  2010 Petr Skoda {@link http://skodak.org}
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  require('../../config.php');
  26  require_once($CFG->dirroot.'/enrol/manual/locallib.php');
  27  
  28  $enrolid      = required_param('enrolid', PARAM_INT);
  29  $roleid       = optional_param('roleid', -1, PARAM_INT);
  30  $extendperiod = optional_param('extendperiod', 0, PARAM_INT);
  31  $extendbase   = optional_param('extendbase', 0, PARAM_INT);
  32  
  33  $instance = $DB->get_record('enrol', array('id'=>$enrolid, 'enrol'=>'manual'), '*', MUST_EXIST);
  34  $course = $DB->get_record('course', array('id'=>$instance->courseid), '*', MUST_EXIST);
  35  $context = context_course::instance($course->id, MUST_EXIST);
  36  
  37  require_login($course);
  38  $canenrol = has_capability('enrol/manual:enrol', $context);
  39  $canunenrol = has_capability('enrol/manual:unenrol', $context);
  40  
  41  // Note: manage capability not used here because it is used for editing
  42  // of existing enrolments which is not possible here.
  43  
  44  if (!$canenrol and !$canunenrol) {
  45      // No need to invent new error strings here...
  46      require_capability('enrol/manual:enrol', $context);
  47      require_capability('enrol/manual:unenrol', $context);
  48  }
  49  
  50  if ($roleid < 0) {
  51      $roleid = $instance->roleid;
  52  }
  53  $roles = get_assignable_roles($context);
  54  $roles = array('0'=>get_string('none')) + $roles;
  55  
  56  if (!isset($roles[$roleid])) {
  57      // Weird - security always first!
  58      $roleid = 0;
  59  }
  60  
  61  if (!$enrol_manual = enrol_get_plugin('manual')) {
  62      throw new coding_exception('Can not instantiate enrol_manual');
  63  }
  64  
  65  $instancename = $enrol_manual->get_instance_name($instance);
  66  
  67  $PAGE->set_url('/enrol/manual/manage.php', array('enrolid'=>$instance->id));
  68  $PAGE->set_pagelayout('admin');
  69  $PAGE->set_title($enrol_manual->get_instance_name($instance));
  70  $PAGE->set_heading($course->fullname);
  71  navigation_node::override_active_url(new moodle_url('/enrol/users.php', array('id'=>$course->id)));
  72  
  73  // Create the user selector objects.
  74  $options = array('enrolid' => $enrolid, 'accesscontext' => $context);
  75  
  76  $potentialuserselector = new enrol_manual_potential_participant('addselect', $options);
  77  $currentuserselector = new enrol_manual_current_participant('removeselect', $options);
  78  
  79  // Build the list of options for the enrolment period dropdown.
  80  $unlimitedperiod = get_string('unlimited');
  81  $periodmenu = array();
  82  for ($i=1; $i<=365; $i++) {
  83      $seconds = $i * 86400;
  84      $periodmenu[$seconds] = get_string('numdays', '', $i);
  85  }
  86  // Work out the apropriate default settings.
  87  if ($extendperiod) {
  88      $defaultperiod = $extendperiod;
  89  } else {
  90      $defaultperiod = $instance->enrolperiod;
  91  }
  92  if ($instance->enrolperiod > 0 && !isset($periodmenu[$instance->enrolperiod])) {
  93      $periodmenu[$instance->enrolperiod] = format_time($instance->enrolperiod);
  94  }
  95  if (empty($extendbase)) {
  96      if (!$extendbase = get_config('enrol_manual', 'enrolstart')) {
  97          // Default to now if there is no system setting.
  98          $extendbase = 4;
  99      }
 100  }
 101  
 102  // Build the list of options for the starting from dropdown.
 103  $now = time();
 104  $today = make_timestamp(date('Y', $now), date('m', $now), date('d', $now), 0, 0, 0);
 105  $dateformat = get_string('strftimedatefullshort');
 106  
 107  // Enrolment start.
 108  $basemenu = array();
 109  if ($course->startdate > 0) {
 110      $basemenu[2] = get_string('coursestart') . ' (' . userdate($course->startdate, $dateformat) . ')';
 111  }
 112  $basemenu[3] = get_string('today') . ' (' . userdate($today, $dateformat) . ')';
 113  $basemenu[4] = get_string('now', 'enrol_manual') . ' (' . userdate($now, get_string('strftimedatetimeshort')) . ')';
 114  
 115  // Process add and removes.
 116  if ($canenrol && optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
 117      $userstoassign = $potentialuserselector->get_selected_users();
 118      if (!empty($userstoassign)) {
 119          foreach($userstoassign as $adduser) {
 120              switch($extendbase) {
 121                  case 2:
 122                      $timestart = $course->startdate;
 123                      break;
 124                  case 4:
 125                      // We mimic get_enrolled_sql round(time(), -2) but always floor as we want users to always access their
 126                      // courses once they are enrolled.
 127                      $timestart = intval(substr($now, 0, 8) . '00') - 1;
 128                      break;
 129                  case 3:
 130                  default:
 131                      $timestart = $today;
 132                      break;
 133              }
 134  
 135              if ($extendperiod <= 0) {
 136                  $timeend = 0;
 137              } else {
 138                  $timeend = $timestart + $extendperiod;
 139              }
 140              $enrol_manual->enrol_user($instance, $adduser->id, $roleid, $timestart, $timeend);
 141          }
 142  
 143          $potentialuserselector->invalidate_selected_users();
 144          $currentuserselector->invalidate_selected_users();
 145  
 146          //TODO: log
 147      }
 148  }
 149  
 150  // Process incoming role unassignments.
 151  if ($canunenrol && optional_param('remove', false, PARAM_BOOL) && confirm_sesskey()) {
 152      $userstounassign = $currentuserselector->get_selected_users();
 153      if (!empty($userstounassign)) {
 154          foreach($userstounassign as $removeuser) {
 155              $enrol_manual->unenrol_user($instance, $removeuser->id);
 156          }
 157  
 158          $potentialuserselector->invalidate_selected_users();
 159          $currentuserselector->invalidate_selected_users();
 160  
 161          //TODO: log
 162      }
 163  }
 164  
 165  
 166  echo $OUTPUT->header();
 167  echo $OUTPUT->heading($instancename);
 168  
 169  $addenabled = $canenrol ? '' : 'disabled="disabled"';
 170  $removeenabled = $canunenrol ? '' : 'disabled="disabled"';
 171  
 172  ?>
 173  <form id="assignform" method="post" action="<?php echo $PAGE->url ?>"><div>
 174    <input type="hidden" name="sesskey" value="<?php echo sesskey() ?>" />
 175  
 176    <table summary="" class="roleassigntable generaltable generalbox boxaligncenter" cellspacing="0">
 177      <tr>
 178        <td id="existingcell">
 179            <p><label for="removeselect"><?php print_string('enrolledusers', 'enrol'); ?></label></p>
 180            <?php $currentuserselector->display() ?>
 181        </td>
 182        <td id="buttonscell">
 183            <div id="addcontrols">
 184                <input name="add" <?php echo $addenabled; ?> id="add" type="submit" value="<?php echo $OUTPUT->larrow().'&nbsp;'.get_string('add'); ?>" title="<?php print_string('add'); ?>" /><br />
 185  
 186                <div class="enroloptions">
 187  
 188                <p><label for="menuroleid"><?php print_string('assignrole', 'enrol_manual') ?></label><br />
 189                <?php echo html_writer::select($roles, 'roleid', $roleid, false); ?></p>
 190  
 191                <p><label for="menuextendperiod"><?php print_string('enrolperiod', 'enrol') ?></label><br />
 192                <?php echo html_writer::select($periodmenu, 'extendperiod', $defaultperiod, $unlimitedperiod); ?></p>
 193  
 194                <p><label for="menuextendbase"><?php print_string('startingfrom') ?></label><br />
 195                <?php echo html_writer::select($basemenu, 'extendbase', $extendbase, false); ?></p>
 196  
 197                </div>
 198            </div>
 199  
 200            <div id="removecontrols">
 201                <input name="remove" id="remove" <?php echo $removeenabled; ?> type="submit" value="<?php echo get_string('remove').'&nbsp;'.$OUTPUT->rarrow(); ?>" title="<?php print_string('remove'); ?>" />
 202            </div>
 203        </td>
 204        <td id="potentialcell">
 205            <p><label for="addselect"><?php print_string('enrolcandidates', 'enrol'); ?></label></p>
 206            <?php $potentialuserselector->display() ?>
 207        </td>
 208      </tr>
 209    </table>
 210  </div></form>
 211  <?php
 212  
 213  
 214  echo $OUTPUT->footer();