repository/manage_instances.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18
  19 /**
  20  * This file is used to manage repositories
  21  *
  22  * @since 2.0
  23  * @package    core
  24  * @subpackage repository
  25  * @copyright  2009 Dongsheng Cai <dongsheng@moodle.com>
  26  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27  */
  28
  29 require_once(dirname(dirname(__FILE__)) . '/config.php');
  30 require_once($CFG->dirroot . '/repository/lib.php');
  31
  32 $edit    = optional_param('edit', 0, PARAM_INT);
  33 $new     = optional_param('new', '', PARAM_FORMAT);
  34 $delete  = optional_param('delete', 0, PARAM_INT);
  35 $sure    = optional_param('sure', '', PARAM_ALPHA);
  36 $contextid = optional_param('contextid', 0, PARAM_INT);
  37 $usercourseid = optional_param('usercourseid', SITEID, PARAM_INT);  // Extra: used for user context only
  38
  39 $url = new moodle_url('/repository/manage_instances.php');
  40
  41 $baseurl = new moodle_url('/repository/manage_instances.php');
  42 $baseurl->param('sesskey', sesskey());
  43
  44 if ($edit){
  45     $url->param('edit', $edit);
  46     $pagename = 'repositoryinstanceedit';
  47 } else if ($delete) {
  48     $url->param('delete', $delete);
  49     $pagename = 'repositorydelete';
  50 } else if ($new) {
  51     $url->param('new', $new);
  52     $pagename = 'repositoryinstancenew';
  53 } else {
  54     $pagename = 'repositorylist';
  55 }
  56
  57 if ($sure !== '') {
  58     $url->param('sure', $sure);
  59 }
  60 if ($contextid !== 0) {
  61     $url->param('contextid', $contextid);
  62     $baseurl->param('contextid', $contextid);
  63 }
  64 if ($usercourseid != SITEID) {
  65     $url->param('usercourseid', $usercourseid);
  66 }
  67
  68 $context = get_context_instance_by_id($contextid);
  69
  70 $PAGE->set_url($url);
  71 $PAGE->set_context($context);
  72
  73 /// Security: make sure we're allowed to do this operation
  74 if ($context->contextlevel == CONTEXT_COURSE) {
  75     $pagename = get_string("repositorycourse",'repository');
  76
  77     if ( !$course = $DB->get_record('course', array('id'=>$context->instanceid))) {
  78         print_error('invalidcourseid');
  79     }
  80     require_login($course, false);
  81     // If the user is allowed to edit this course, he's allowed to edit list of repository instances
  82     require_capability('moodle/course:update',  $context);
  83
  84
  85 } else if ($context->contextlevel == CONTEXT_USER) {
  86     require_login();
  87     $pagename = get_string("personalrepositories",'repository');
  88     //is the user looking at its own repository instances
  89     if ($USER->id != $context->instanceid){
  90         print_error('notyourinstances', 'repository');
  91     }
  92     $user = $USER;
  93     $PAGE->set_pagelayout('mydashboard');
  94 } else {
  95     print_error('invalidcontext');
  96 }
  97
  98 /// Security: we cannot perform any action if the type is not visible or if the context has been disabled
  99 if (!empty($new)){
 100     $type = repository::get_type_by_typename($new);
 101 } else if (!empty($edit)){
 102     $instance = repository::get_instance($edit);
 103     $type = repository::get_type_by_id($instance->options['typeid']);
 104 } else if (!empty($delete)){
 105     $instance = repository::get_instance($delete);
 106     $type = repository::get_type_by_id($instance->options['typeid']);
 107 }
 108
 109 if (isset($type) && !$type->get_visible()) {
 110     print_error('typenotvisible', 'repository', $baseurl);
 111 }
 112
 113 if (isset($type) && !$type->get_contextvisibility($context)) {
 114     print_error('usercontextrepositorydisabled', 'repository', $baseurl);
 115 }
 116
 117 /// Create navigation links
 118 if (!empty($course)) {
 119     $PAGE->navbar->add($pagename);
 120     $fullname = $course->fullname;
 121 } else {
 122     $fullname = fullname($user);
 123     $strrepos = get_string('repositories', 'repository');
 124     $PAGE->navbar->add($fullname, new moodle_url('/user/view.php', array('id'=>$user->id)));
 125     $PAGE->navbar->add($strrepos);
 126 }
 127
 128 $title = $pagename;
 129
 130 /// Display page header
 131 $PAGE->set_title($title);
 132 $PAGE->set_heading($fullname);
 133 echo $OUTPUT->header();
 134
 135 if ($context->contextlevel == CONTEXT_USER) {
 136     if ( !$course = $DB->get_record('course', array('id'=>$usercourseid))) {
 137         print_error('invalidcourseid');
 138     }
 139 }
 140
 141 $return = true;
 142 if (!empty($edit) || !empty($new)) {
 143     if (!empty($edit)) {
 144         $instance = repository::get_instance($edit);
 145         //if you try to edit an instance set as readonly, display an error message
 146         if ($instance->readonly) {
 147             throw new repository_exception('readonlyinstance', 'repository');
 148         }
 149         $instancetype = repository::get_type_by_id($instance->options['typeid']);
 150         $classname = 'repository_' . $instancetype->get_typename();
 151         $configs  = $instance->get_instance_option_names();
 152         $plugin = $instancetype->get_typename();
 153         $typeid = $instance->options['typeid'];
 154     } else {
 155         $plugin = $new;
 156         $typeid = $new;
 157         $instance = null;
 158     }
 159
 160 /// Create edit form for this instance
 161     $mform = new repository_instance_form('', array('plugin' => $plugin, 'typeid' => $typeid,'instance' => $instance, 'contextid' => $contextid));
 162
 163 /// Process the form data if any, or display
 164     if ($mform->is_cancelled()){
 165         redirect($baseurl);
 166         exit;
 167
 168     } else if ($fromform = $mform->get_data()){
 169         if (!confirm_sesskey()) {
 170             print_error('confirmsesskeybad', '', $baseurl);
 171         }
 172         if ($edit) {
 173             $settings = array();
 174             $settings['name'] = $fromform->name;
 175             foreach($configs as $config) {
 176                 $settings[$config] = $fromform->$config;
 177             }
 178             $success = $instance->set_option($settings);
 179         } else {
 180             $success = repository::static_function($plugin, 'create', $plugin, 0, get_context_instance_by_id($contextid), $fromform);
 181             $data = data_submitted();
 182         }
 183         if ($success) {
 184             $savedstr = get_string('configsaved', 'repository');
 185             echo $OUTPUT->heading($savedstr);
 186             redirect($baseurl);
 187         } else {
 188             print_error('instancenotsaved', 'repository', $baseurl);
 189         }
 190         exit;
 191     } else {     // Display the form
 192         echo $OUTPUT->heading(get_string('configplugin', 'repository_'.$plugin));
 193         $OUTPUT->box_start();
 194         $mform->display();
 195         $OUTPUT->box_end();
 196         $return = false;
 197     }
 198 } else if (!empty($delete)) {
 199     // echo $OUTPUT->header();
 200     $instance = repository::get_instance($delete);
 201      //if you try to delete an instance set as readonly, display an error message
 202     if ($instance->readonly) {
 203         throw new repository_exception('readonlyinstance', 'repository');
 204     }
 205     if ($sure) {
 206         if (!confirm_sesskey()) {
 207             print_error('confirmsesskeybad', '', $baseurl);
 208         }
 209         if ($instance->delete()) {
 210             $deletedstr = get_string('instancedeleted', 'repository');
 211             echo $OUTPUT->heading($deletedstr);
 212             redirect($baseurl, $deletedstr, 3);
 213         } else {
 214             print_error('instancenotdeleted', 'repository', $baseurl);
 215         }
 216         exit;
 217     }
 218     $formcontinue = new single_button(new moodle_url($baseurl, array('delete' => $delete, 'sure' => 'yes')), get_string('yes'));
 219     $formcancel = new single_button($baseurl, get_string('no'));
 220     echo $OUTPUT->confirm(get_string('confirmdelete', 'repository', $instance->name), $formcontinue, $formcancel);
 221     $return = false;
 222 } else {
 223     repository::display_instances_list($context);
 224     $return = false;
 225 }
 226
 227 if (!empty($return)) {
 228     redirect($baseurl);
 229 }
 230
 231 echo $OUTPUT->footer();