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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   * This file contains the forms to create and edit an instance of this module
  19   *
  20   * @package   mod_assign
  21   * @copyright 2012 NetSpot {@link http://www.netspot.com.au}
  22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
  26  
  27  
  28  require_once($CFG->libdir.'/formslib.php');
  29  require_once($CFG->dirroot . '/mod/assign/locallib.php');
  30  
  31  /**
  32   * Assignment extension dates form
  33   *
  34   * @package   mod_assign
  35   * @copyright 2012 NetSpot {@link http://www.netspot.com.au}
  36   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  37   */
  38  class mod_assign_extension_form extends moodleform {
  39      /** @var array $instance - The data passed to this form */
  40      private $instance;
  41  
  42      /**
  43       * Define the form - called by parent constructor
  44       */
  45      public function definition() {
  46          $mform = $this->_form;
  47          $params = $this->_customdata;
  48  
  49          // Instance variable is used by the form validation function.
  50          $instance = $params['instance'];
  51          $this->instance = $instance;
  52  
  53          if (!empty($params['userscount'])) {
  54              $listusersmessage = get_string('grantextensionforusers', 'assign', $params['userscount']);
  55              $mform->addElement('header', 'general', $listusersmessage);
  56              $mform->addElement('static', 'userslist', get_string('selectedusers', 'assign'), $params['usershtml']);
  57          } else {
  58              $mform->addElement('static', 'userslist', '', $params['usershtml']);
  59          }
  60          if ($instance->allowsubmissionsfromdate) {
  61              $mform->addElement('static', 'allowsubmissionsfromdate', get_string('allowsubmissionsfromdate', 'assign'),
  62                                 userdate($instance->allowsubmissionsfromdate));
  63          }
  64  
  65          $finaldate = 0;
  66          if ($instance->duedate) {
  67              $mform->addElement('static', 'duedate', get_string('duedate', 'assign'), userdate($instance->duedate));
  68              $finaldate = $instance->duedate;
  69          }
  70          if ($instance->cutoffdate) {
  71              $mform->addElement('static', 'cutoffdate', get_string('cutoffdate', 'assign'), userdate($instance->cutoffdate));
  72              $finaldate = $instance->cutoffdate;
  73          }
  74          $mform->addElement('date_time_selector', 'extensionduedate',
  75                             get_string('extensionduedate', 'assign'), array('optional'=>true));
  76          $mform->setDefault('extensionduedate', $finaldate);
  77  
  78          $mform->addElement('hidden', 'id');
  79          $mform->setType('id', PARAM_INT);
  80          $mform->addElement('hidden', 'userid');
  81          $mform->setType('userid', PARAM_INT);
  82          $mform->addElement('hidden', 'selectedusers');
  83          $mform->setType('selectedusers', PARAM_SEQUENCE);
  84          $mform->addElement('hidden', 'action', 'saveextension');
  85          $mform->setType('action', PARAM_ALPHA);
  86  
  87          $this->add_action_buttons(true, get_string('savechanges', 'assign'));
  88      }
  89  
  90      /**
  91       * Perform validation on the extension form
  92       * @param array $data
  93       * @param array $files
  94       */
  95      public function validation($data, $files) {
  96          $errors = parent::validation($data, $files);
  97          if ($this->instance->duedate && $data['extensionduedate']) {
  98              if ($this->instance->duedate > $data['extensionduedate']) {
  99                  $errors['extensionduedate'] = get_string('extensionnotafterduedate', 'assign');
 100              }
 101          }
 102          if ($this->instance->allowsubmissionsfromdate && $data['extensionduedate']) {
 103              if ($this->instance->allowsubmissionsfromdate > $data['extensionduedate']) {
 104                  $errors['extensionduedate'] = get_string('extensionnotafterfromdate', 'assign');
 105              }
 106          }
 107  
 108          return $errors;
 109      }
 110  }