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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 page lets users to manage rules for a given course.
  19   *
  20   * @package    tool_monitor
  21   * @copyright  2014 onwards Ankit Agarwal <ankit.agrr@gmail.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  require_once(__DIR__ . '/../../../config.php');
  26  require_once($CFG->libdir.'/adminlib.php');
  27  
  28  $courseid = optional_param('courseid', 0, PARAM_INT);
  29  $ruleid = optional_param('ruleid', 0, PARAM_INT);
  30  $action = optional_param('action', '', PARAM_ALPHA);
  31  $confirm = optional_param('confirm', false, PARAM_BOOL);
  32  $status = optional_param('status', 0, PARAM_BOOL);
  33  
  34  // Validate course id.
  35  if (empty($courseid)) {
  36      require_login();
  37      $context = context_system::instance();
  38      $coursename = format_string($SITE->fullname, true, array('context' => $context));
  39      $PAGE->set_context($context);
  40  } else {
  41      $course = get_course($courseid);
  42      require_login($course);
  43      $context = context_course::instance($course->id);
  44      $coursename = format_string($course->fullname, true, array('context' => $context));
  45  }
  46  
  47  // Check for caps.
  48  require_capability('tool/monitor:managerules', $context);
  49  
  50  // Set up the page.
  51  $manageurl = new moodle_url("/admin/tool/monitor/managerules.php", array('courseid' => $courseid));
  52  $PAGE->set_url($manageurl);
  53  $PAGE->set_pagelayout('report');
  54  $PAGE->set_title($coursename);
  55  $PAGE->set_heading($coursename);
  56  
  57  // Site level report.
  58  if (empty($courseid)) {
  59      admin_externalpage_setup('toolmonitorrules', '', null, '', array('pagelayout' => 'report'));
  60  }
  61  
  62  if (!empty($action) && $action == 'changestatus') {
  63      require_sesskey();
  64      require_capability('tool/monitor:managetool', context_system::instance());
  65      // Toggle status of the plugin.
  66      set_config('enablemonitor', $status, 'tool_monitor');
  67      redirect(new moodle_url('/admin/tool/monitor/managerules.php', array('courseid' => 0)));
  68  }
  69  
  70  // Copy/delete rule if needed.
  71  if (!empty($action) && $ruleid) {
  72      require_sesskey();
  73  
  74      // If the rule does not exist, then redirect back as the rule must have already been deleted.
  75      if (!$rule = $DB->get_record('tool_monitor_rules', array('id' => $ruleid), '*', IGNORE_MISSING)) {
  76          redirect(new moodle_url('/admin/tool/monitor/managerules.php', array('courseid' => $courseid)));
  77      }
  78  
  79      echo $OUTPUT->header();
  80      $rule = \tool_monitor\rule_manager::get_rule($rule);
  81      switch ($action) {
  82          case 'copy':
  83              // No need to check for capability here as it is done at the start of the page.
  84              $rule->duplicate_rule($courseid);
  85              echo $OUTPUT->notification(get_string('rulecopysuccess', 'tool_monitor'), 'notifysuccess');
  86              break;
  87          case 'delete':
  88              if ($rule->can_manage_rule()) {
  89                  $confirmurl = new moodle_url($CFG->wwwroot. '/admin/tool/monitor/managerules.php',
  90                      array('ruleid' => $ruleid, 'courseid' => $courseid, 'action' => 'delete',
  91                          'confirm' => true, 'sesskey' => sesskey()));
  92                  $cancelurl = new moodle_url($CFG->wwwroot. '/admin/tool/monitor/managerules.php',
  93                      array('courseid' => $courseid));
  94                  if ($confirm) {
  95                      $rule->delete_rule();
  96                      echo $OUTPUT->notification(get_string('ruledeletesuccess', 'tool_monitor'), 'notifysuccess');
  97                  } else {
  98                      $strconfirm = get_string('ruleareyousure', 'tool_monitor', $rule->get_name($context));
  99                      if ($numberofsubs = $DB->count_records('tool_monitor_subscriptions', array('ruleid' => $ruleid))) {
 100                          $strconfirm .= '<br />';
 101                          $strconfirm .= get_string('ruleareyousureextra', 'tool_monitor', $numberofsubs);
 102                      }
 103                      echo $OUTPUT->confirm($strconfirm, $confirmurl, $cancelurl);
 104                      echo $OUTPUT->footer();
 105                      exit();
 106                  }
 107              } else {
 108                  // User doesn't have permissions. Should never happen for real users.
 109                  throw new moodle_exception('rulenopermissions', 'tool_monitor', $manageurl, $action);
 110              }
 111              break;
 112          default:
 113      }
 114  } else {
 115      echo $OUTPUT->header();
 116  }
 117  
 118  echo $OUTPUT->heading(get_string('managerules', 'tool_monitor'));
 119  $status = get_config('tool_monitor', 'enablemonitor');
 120  $help = new help_icon('enablehelp', 'tool_monitor');
 121  
 122  // Display option to enable/disable the plugin.
 123  if ($status) {
 124      if (has_capability('tool/monitor:managetool', context_system::instance())) {
 125          // We don't need to show enabled status to everyone.
 126          echo get_string('monitorenabled', 'tool_monitor');
 127          $disableurl = new moodle_url("/admin/tool/monitor/managerules.php",
 128                  array('courseid' => $courseid, 'action' => 'changestatus', 'status' => 0, 'sesskey' => sesskey()));
 129          echo ' ' . html_writer::link($disableurl, get_string('disable'));
 130          echo $OUTPUT->render($help);
 131      }
 132  } else {
 133      echo get_string('monitordisabled', 'tool_monitor');
 134      if (has_capability('tool/monitor:managetool', context_system::instance())) {
 135          $enableurl = new moodle_url("/admin/tool/monitor/managerules.php",
 136                  array('courseid' => $courseid, 'action' => 'changestatus', 'status' => 1, 'sesskey' => sesskey()));
 137          echo ' ' . html_writer::link($enableurl, get_string('enable'));
 138          echo $OUTPUT->render($help);
 139      } else {
 140          echo ' ' . get_string('contactadmin', 'tool_monitor');
 141      }
 142      echo $OUTPUT->footer(); // Do not render anything else.
 143      exit();
 144  }
 145  
 146  // Render the rule list.
 147  $renderable = new \tool_monitor\output\managerules\renderable('toolmonitorrules', $manageurl, $courseid);
 148  $renderer = $PAGE->get_renderer('tool_monitor', 'managerules');
 149  echo $renderer->render($renderable);
 150  if (has_capability('tool/monitor:subscribe', $context)) {
 151      $manageurl = new moodle_url("/admin/tool/monitor/index.php", array('courseid' => $courseid));
 152      echo $renderer->render_subscriptions_link($manageurl);
 153  }
 154  echo $OUTPUT->footer();