backup/moodle2/restore_root_task.class.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  * Defines restore_root_task class
  20  * @package     core_backup
  21  * @subpackage  moodle2
  22  * @category    backup
  23  * @copyright   2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
  24  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 defined('MOODLE_INTERNAL') || die();
  28
  29 /**
  30  * Start task that provides all the settings common to all restores and other initial steps
  31  *
  32  * TODO: Finish phpdocs
  33  */
  34 class restore_root_task extends restore_task {
  35
  36     /**
  37      * Create all the steps that will be part of this task
  38      */
  39     public function build() {
  40
  41         // Conditionally create the temp table (can exist from prechecks) and delete old stuff
  42         $this->add_step(new restore_create_and_clean_temp_stuff('create_and_clean_temp_stuff'));
  43
  44         // Now make sure the user that is running the restore can actually access the course
  45         // before executing any other step (potentially performing permission checks)
  46         $this->add_step(new restore_fix_restorer_access_step('fix_restorer_access'));
  47
  48         // If we haven't preloaded information, load all the included inforef records to temp_ids table
  49         $this->add_step(new restore_load_included_inforef_records('load_inforef_records'));
  50
  51         // Load all the needed files to temp_ids table
  52         $this->add_step(new restore_load_included_files('load_file_records', 'files.xml'));
  53
  54         // If we haven't preloaded information, load all the needed roles to temp_ids_table
  55         $this->add_step(new restore_load_and_map_roles('load_and_map_roles'));
  56
  57         // If we haven't preloaded information and are restoring user info, load all the needed users to temp_ids table
  58         $this->add_step(new restore_load_included_users('load_user_records'));
  59
  60         // If we haven't preloaded information and are restoring user info, process all those needed users
  61         // marking for create/map them as needed. Any problem here will cause exception as far as prechecks have
  62         // performed the same process so, it's not possible to have errors here
  63         $this->add_step(new restore_process_included_users('process_user_records'));
  64
  65         // Unconditionally, create all the needed users calculated in the previous step
  66         $this->add_step(new restore_create_included_users('create_users'));
  67
  68         // Unconditionally, load create all the needed groups and groupings
  69         $this->add_step(new restore_groups_structure_step('create_groups_and_groupings', 'groups.xml'));
  70
  71         // Unconditionally, load create all the needed scales
  72         $this->add_step(new restore_scales_structure_step('create_scales', 'scales.xml'));
  73
  74         // Unconditionally, load create all the needed outcomes
  75         $this->add_step(new restore_outcomes_structure_step('create_scales', 'outcomes.xml'));
  76
  77         // If we haven't preloaded information, load all the needed categories and questions (reduced) to temp_ids_table
  78         $this->add_step(new restore_load_categories_and_questions('load_categories_and_questions'));
  79
  80         // If we haven't preloaded information, process all the loaded categories and questions
  81         // marking them for creation/mapping as needed. Any problem here will cause exception
  82         // because this same process has been executed and reported by restore prechecks, so
  83         // it is not possible to have errors here.
  84         $this->add_step(new restore_process_categories_and_questions('process_categories_and_questions'));
  85
  86         // Unconditionally, create and map all the categories and questions
  87         $this->add_step(new restore_create_categories_and_questions('create_categories_and_questions', 'questions.xml'));
  88
  89         // At the end, mark it as built
  90         $this->built = true;
  91     }
  92
  93 // Protected API starts here
  94
  95     /**
  96      * Define the common setting that any restore type will have
  97      */
  98     protected function define_settings() {
  99
 100         // Load all the root settings found in backup file from controller
 101         $rootsettings = $this->get_info()->root_settings;
 102
 103         // Define users setting (keeping it on hand to define dependencies)
 104         $defaultvalue = false;                      // Safer default
 105         $changeable = false;
 106         if (isset($rootsettings['users']) && $rootsettings['users']) { // Only enabled when available
 107             $defaultvalue = true;
 108             $changeable = true;
 109         }
 110         $users = new restore_users_setting('users', base_setting::IS_BOOLEAN, $defaultvalue);
 111         $users->set_ui(new backup_setting_ui_checkbox($users, get_string('rootsettingusers', 'backup')));
 112         $users->get_ui()->set_changeable($changeable);
 113         $this->add_setting($users);
 114
 115         // Restore enrolment methods.
 116         if ($changeable) {
 117             $options = [
 118                 backup::ENROL_NEVER     => get_string('rootsettingenrolments_never', 'backup'),
 119                 backup::ENROL_WITHUSERS => get_string('rootsettingenrolments_withusers', 'backup'),
 120                 backup::ENROL_ALWAYS    => get_string('rootsettingenrolments_always', 'backup'),
 121             ];
 122             $enroldefault = backup::ENROL_WITHUSERS;
 123         } else {
 124             // Users can not be restored, simplify the dropdown.
 125             $options = [
 126                 backup::ENROL_NEVER     => get_string('no'),
 127                 backup::ENROL_ALWAYS    => get_string('yes')
 128             ];
 129             $enroldefault = backup::ENROL_NEVER;
 130         }
 131         $enrolments = new restore_users_setting('enrolments', base_setting::IS_INTEGER, $enroldefault);
 132         $enrolments->set_ui(new backup_setting_ui_select($enrolments, get_string('rootsettingenrolments', 'backup'),
 133             $options));
 134         $this->add_setting($enrolments);
 135
 136         // Define role_assignments (dependent of users)
 137         $defaultvalue = false;                      // Safer default
 138         $changeable = false;
 139         if (isset($rootsettings['role_assignments']) && $rootsettings['role_assignments']) { // Only enabled when available
 140             $defaultvalue = true;
 141             $changeable = true;
 142         }
 143         $roleassignments = new restore_role_assignments_setting('role_assignments', base_setting::IS_BOOLEAN, $defaultvalue);
 144         $roleassignments->set_ui(new backup_setting_ui_checkbox($roleassignments,get_string('rootsettingroleassignments', 'backup')));
 145         $roleassignments->get_ui()->set_changeable($changeable);
 146         $this->add_setting($roleassignments);
 147         $users->add_dependency($roleassignments);
 148
 149         // Define permissions.
 150         $defaultvalue = false;                      // Safer default.
 151         $changeable = false;
 152         // Enable when available, or key doesn't exist (backward compatibility).
 153         if (!array_key_exists('permissions', $rootsettings) || !empty($rootsettings['permissions'])) {
 154             $defaultvalue = true;
 155             $changeable = true;
 156         }
 157         $permissions = new restore_permissions_setting('permissions', base_setting::IS_BOOLEAN, $defaultvalue);
 158         $permissions->set_ui(new backup_setting_ui_checkbox($permissions, get_string('rootsettingpermissions', 'backup')));
 159         $permissions->get_ui()->set_changeable($changeable);
 160         $this->add_setting($permissions);
 161
 162         // Define activitites
 163         $defaultvalue = false;                      // Safer default
 164         $changeable = false;
 165         if (isset($rootsettings['activities']) && $rootsettings['activities']) { // Only enabled when available
 166             $defaultvalue = true;
 167             $changeable = true;
 168         }
 169         $activities = new restore_activities_setting('activities', base_setting::IS_BOOLEAN, $defaultvalue);
 170         $activities->set_ui(new backup_setting_ui_checkbox($activities, get_string('rootsettingactivities', 'backup')));
 171         $activities->get_ui()->set_changeable($changeable);
 172         $this->add_setting($activities);
 173
 174         // Define blocks
 175         $defaultvalue = false;                      // Safer default
 176         $changeable = false;
 177         if (isset($rootsettings['blocks']) && $rootsettings['blocks']) { // Only enabled when available
 178             $defaultvalue = true;
 179             $changeable = true;
 180         }
 181         $blocks = new restore_generic_setting('blocks', base_setting::IS_BOOLEAN, $defaultvalue);
 182         $blocks->set_ui(new backup_setting_ui_checkbox($blocks, get_string('rootsettingblocks', 'backup')));
 183         $blocks->get_ui()->set_changeable($changeable);
 184         $this->add_setting($blocks);
 185
 186         // Define filters
 187         $defaultvalue = false;                      // Safer default
 188         $changeable = false;
 189         if (isset($rootsettings['filters']) && $rootsettings['filters']) { // Only enabled when available
 190             $defaultvalue = true;
 191             $changeable = true;
 192         }
 193         $filters = new restore_generic_setting('filters', base_setting::IS_BOOLEAN, $defaultvalue);
 194         $filters->set_ui(new backup_setting_ui_checkbox($filters, get_string('rootsettingfilters', 'backup')));
 195         $filters->get_ui()->set_changeable($changeable);
 196         $this->add_setting($filters);
 197
 198         // Define comments (dependent of users)
 199         $defaultvalue = false;                      // Safer default
 200         $changeable = false;
 201         if (isset($rootsettings['comments']) && $rootsettings['comments']) { // Only enabled when available
 202             $defaultvalue = true;
 203             $changeable = true;
 204         }
 205         $comments = new restore_comments_setting('comments', base_setting::IS_BOOLEAN, $defaultvalue);
 206         $comments->set_ui(new backup_setting_ui_checkbox($comments, get_string('rootsettingcomments', 'backup')));
 207         $comments->get_ui()->set_changeable($changeable);
 208         $this->add_setting($comments);
 209         $users->add_dependency($comments);
 210
 211         // Define badges (dependent of activities).
 212         $defaultvalue = false;                      // Safer default.
 213         $changeable = false;
 214         if (isset($rootsettings['badges']) && $rootsettings['badges']) { // Only enabled when available.
 215             $defaultvalue = true;
 216             $changeable = true;
 217         }
 218         $badges = new restore_badges_setting('badges', base_setting::IS_BOOLEAN, $defaultvalue);
 219         $badges->set_ui(new backup_setting_ui_checkbox($badges, get_string('rootsettingbadges', 'backup')));
 220         $badges->get_ui()->set_changeable($changeable);
 221         $this->add_setting($badges);
 222         $activities->add_dependency($badges);
 223         $users->add_dependency($badges);
 224
 225         // Define Calendar events.
 226         $defaultvalue = false;                      // Safer default
 227         $changeable = false;
 228         if (isset($rootsettings['calendarevents']) && $rootsettings['calendarevents']) { // Only enabled when available
 229             $defaultvalue = true;
 230             $changeable = true;
 231         }
 232         $events = new restore_calendarevents_setting('calendarevents', base_setting::IS_BOOLEAN, $defaultvalue);
 233         $events->set_ui(new backup_setting_ui_checkbox($events, get_string('rootsettingcalendarevents', 'backup')));
 234         $events->get_ui()->set_changeable($changeable);
 235         $this->add_setting($events);
 236
 237         // Define completion (dependent of users)
 238         $defaultvalue = false;                      // Safer default
 239         $changeable = false;
 240         if (isset($rootsettings['userscompletion']) && $rootsettings['userscompletion']) { // Only enabled when available
 241             $defaultvalue = true;
 242             $changeable = true;
 243         }
 244         $completion = new restore_userscompletion_setting('userscompletion', base_setting::IS_BOOLEAN, $defaultvalue);
 245         $completion->set_ui(new backup_setting_ui_checkbox($completion, get_string('rootsettinguserscompletion', 'backup')));
 246         $completion->get_ui()->set_changeable($changeable);
 247         $this->add_setting($completion);
 248         $users->add_dependency($completion);
 249
 250         // Define logs (dependent of users)
 251         $defaultvalue = false;                      // Safer default
 252         $changeable = false;
 253         if (isset($rootsettings['logs']) && $rootsettings['logs']) { // Only enabled when available
 254             $defaultvalue = true;
 255             $changeable = true;
 256         }
 257         $logs = new restore_logs_setting('logs', base_setting::IS_BOOLEAN, $defaultvalue);
 258         $logs->set_ui(new backup_setting_ui_checkbox($logs, get_string('rootsettinglogs', 'backup')));
 259         $logs->get_ui()->set_changeable($changeable);
 260         $this->add_setting($logs);
 261         $users->add_dependency($logs);
 262
 263         // Define grade_histories (dependent of users)
 264         $defaultvalue = false;                      // Safer default
 265         $changeable = false;
 266         if (isset($rootsettings['grade_histories']) && $rootsettings['grade_histories']) { // Only enabled when available
 267             $defaultvalue = true;
 268             $changeable = true;
 269         }
 270         $gradehistories = new restore_grade_histories_setting('grade_histories', base_setting::IS_BOOLEAN, $defaultvalue);
 271         $gradehistories->set_ui(new backup_setting_ui_checkbox($gradehistories, get_string('rootsettinggradehistories', 'backup')));
 272         $gradehistories->get_ui()->set_changeable($changeable);
 273         $this->add_setting($gradehistories);
 274         $users->add_dependency($gradehistories);
 275
 276         // The restore does not process the grade histories when some activities are ignored.
 277         // So let's define a dependency to prevent false expectations from our users.
 278         $activities->add_dependency($gradehistories);
 279
 280         // Define groups and groupings.
 281         $defaultvalue = false;
 282         $changeable = false;
 283         if (isset($rootsettings['groups']) && $rootsettings['groups']) { // Only enabled when available.
 284             $defaultvalue = true;
 285             $changeable = true;
 286         } else if (!isset($rootsettings['groups'])) {
 287             // It is likely this is an older backup that does not contain information on the group setting,
 288             // in which case groups should be restored and this setting can be changed.
 289             $defaultvalue = true;
 290             $changeable = true;
 291         }
 292         $groups = new restore_groups_setting('groups', base_setting::IS_BOOLEAN, $defaultvalue);
 293         $groups->set_ui(new backup_setting_ui_checkbox($groups, get_string('rootsettinggroups', 'backup')));
 294         $groups->get_ui()->set_changeable($changeable);
 295         $this->add_setting($groups);
 296
 297         // Competencies restore setting. Show when competencies is enabled and the setting is available.
 298         $hascompetencies = !empty($rootsettings['competencies']);
 299         $competencies = new restore_competencies_setting($hascompetencies);
 300         $competencies->set_ui(new backup_setting_ui_checkbox($competencies, get_string('rootsettingcompetencies', 'backup')));
 301         $this->add_setting($competencies);
 302
 303         $customfields = new restore_customfield_setting('customfields', base_setting::IS_BOOLEAN, $defaultvalue);
 304         $customfields->set_ui(new backup_setting_ui_checkbox($customfields, get_string('rootsettingcustomfield', 'backup')));
 305         $this->add_setting($customfields);
 306
 307         // Define Content bank content.
 308         $defaultvalue = false;
 309         $changeable = false;
 310         if (isset($rootsettings['contentbankcontent']) && $rootsettings['contentbankcontent']) { // Only enabled when available.
 311             $defaultvalue = true;
 312             $changeable = true;
 313         }
 314         $contents = new restore_contentbankcontent_setting('contentbankcontent', base_setting::IS_BOOLEAN, $defaultvalue);
 315         $contents->set_ui(new backup_setting_ui_checkbox($contents, get_string('rootsettingcontentbankcontent', 'backup')));
 316         $contents->get_ui()->set_changeable($changeable);
 317         $this->add_setting($contents);
 318
 319         // Include legacy files.
 320         $defaultvalue = true;
 321         $changeable = true;
 322         $legacyfiles = new restore_generic_setting('legacyfiles', base_setting::IS_BOOLEAN, $defaultvalue);
 323         $legacyfiles->set_ui(new backup_setting_ui_checkbox($legacyfiles, get_string('rootsettinglegacyfiles', 'backup')));
 324         $legacyfiles->get_ui()->set_changeable($changeable);
 325         $this->add_setting($legacyfiles);
 326     }
 327 }