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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 = $this->_form;
  47  
  48          list($coursemoduleid, $userid, $batchusers, $instance, $data) = $this->_customdata;
  49          // Instance variable is used by the form validation function.
  50          $this->instance = $instance;
  51  
  52          if ($batchusers) {
  53              $listusersmessage = get_string('grantextensionforusers', 'assign', count(explode(',', $batchusers)));
  54              $mform->addElement('static', 'applytoselectedusers', '', $listusersmessage);
  55          }
  56          if ($instance->allowsubmissionsfromdate) {
  57              $mform->addElement('static', 'allowsubmissionsfromdate', get_string('allowsubmissionsfromdate', 'assign'),
  58                                 userdate($instance->allowsubmissionsfromdate));
  59          }
  60          if ($instance->duedate) {
  61              $mform->addElement('static', 'duedate', get_string('duedate', 'assign'), userdate($instance->duedate));
  62              $finaldate = $instance->duedate;
  63          }
  64          if ($instance->cutoffdate) {
  65              $mform->addElement('static', 'cutoffdate', get_string('cutoffdate', 'assign'), userdate($instance->cutoffdate));
  66              $finaldate = $instance->cutoffdate;
  67          }
  68          $mform->addElement('date_time_selector', 'extensionduedate',
  69                             get_string('extensionduedate', 'assign'), array('optional'=>true));
  70          $mform->setDefault('extensionduedate', $finaldate);
  71          $mform->addElement('hidden', 'id', $coursemoduleid);
  72          $mform->setType('id', PARAM_INT);
  73          $mform->addElement('hidden', 'userid', $userid);
  74          $mform->setType('userid', PARAM_INT);
  75          $mform->addElement('hidden', 'selectedusers', $batchusers);
  76          $mform->setType('selectedusers', PARAM_SEQUENCE);
  77          $mform->addElement('hidden', 'action', 'saveextension');
  78          $mform->setType('action', PARAM_ALPHA);
  79          $this->add_action_buttons(true, get_string('savechanges', 'assign'));
  80  
  81          if ($data) {
  82              $this->set_data($data);
  83          }
  84      }
  85  
  86      /**
  87       * Perform validation on the extension form
  88       * @param array $data
  89       * @param array $files
  90       */
  91      public function validation($data, $files) {
  92          $errors = parent::validation($data, $files);
  93          if ($this->instance->duedate && $data['extensionduedate']) {
  94              if ($this->instance->duedate > $data['extensionduedate']) {
  95                  $errors['extensionduedate'] = get_string('extensionnotafterduedate', 'assign');
  96              }
  97          }
  98          if ($this->instance->allowsubmissionsfromdate && $data['extensionduedate']) {
  99              if ($this->instance->allowsubmissionsfromdate > $data['extensionduedate']) {
 100                  $errors['extensionduedate'] = get_string('extensionnotafterfromdate', 'assign');
 101              }
 102          }
 103  
 104          return $errors;
 105      }
 106  }