[Summary view]

Differences Between: [Versions 401 and 403]

   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  namespace mod_data\external;
  18  
  19  use core\notification;
  20  use core_external\external_api;
  21  use core_external\external_function_parameters;
  22  use core_external\external_multiple_structure;
  23  use core_external\external_single_structure;
  24  use core_external\external_value;
  25  use core_external\external_warnings;
  26  use mod_data\manager;
  27  use mod_data\preset;
  28  
  29  /**
  30   * This is the external method for deleting a saved preset.
  31   *
  32   * @package    mod_data
  33   * @since      Moodle 4.1
  34   * @copyright  2022 Amaia Anabitarte <amaia@moodle.com>
  35   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  36   */
  37  class delete_saved_preset extends external_api {
  38      /**
  39       * Parameters.
  40       *
  41       * @return external_function_parameters
  42       */
  43      public static function execute_parameters(): external_function_parameters {
  44          return new external_function_parameters([
  45              'dataid' => new external_value(PARAM_INT, 'Id of the data activity', VALUE_REQUIRED),
  46              'presetnames' => new external_multiple_structure(
  47                  new external_value(PARAM_TEXT, 'The preset name to delete', VALUE_REQUIRED)
  48              )
  49          ]);
  50      }
  51  
  52      /**
  53       * Delete saved preset from the file system.
  54       *
  55       * @param  int $dataid Id of the data activity to check context and permissions.
  56       * @param  array $presetnames List of saved preset names to delete.
  57       * @return array True if the content has been deleted; false and the warning, otherwise.
  58       */
  59      public static function execute(int $dataid, array $presetnames): array {
  60          global $DB;
  61  
  62          $result = false;
  63          $warnings = [];
  64  
  65          $params = self::validate_parameters(self::execute_parameters(), ['dataid' => $dataid, 'presetnames' => $presetnames]);
  66  
  67          $instance = $DB->get_record('data', ['id' => $params['dataid']], '*', MUST_EXIST);
  68          $manager = manager::create_from_instance($instance);
  69  
  70          foreach ($params['presetnames'] as $presetname) {
  71              try {
  72                  $preset = preset::create_from_instance($manager, $presetname);
  73                  if ($preset->can_manage()) {
  74                      if ($preset->delete()) {
  75                          notification::success(get_string('presetdeleted', 'mod_data'));
  76                          $result = true;
  77                      } else {
  78                          // An error ocurred while deleting the preset.
  79                          $warnings[] = [
  80                              'item' => $presetname,
  81                              'warningcode' => 'failedpresetdelete',
  82                              'message' => get_string('failedpresetdelete', 'mod_data')
  83                          ];
  84                          notification::error(get_string('failedpresetdelete', 'mod_data'));
  85                      }
  86                  } else {
  87                      // The user has no permission to delete the preset.
  88                      $warnings[] = [
  89                          'item' => $presetname,
  90                          'warningcode' => 'cannotdeletepreset',
  91                          'message' => get_string('cannotdeletepreset', 'mod_data')
  92                      ];
  93                      notification::error(get_string('cannotdeletepreset', 'mod_data'));
  94                  }
  95              } catch (\moodle_exception $e) {
  96                  // The saved preset has not been deleted.
  97                  $warnings[] = [
  98                      'item' => $presetname,
  99                      'warningcode' => 'exception',
 100                      'message' => $e->getMessage()
 101                  ];
 102                  notification::error($e->getMessage());
 103              }
 104          }
 105  
 106          return [
 107              'result' => $result,
 108              'warnings' => $warnings
 109          ];
 110      }
 111  
 112      /**
 113       * Return.
 114       *
 115       * @return external_single_structure
 116       */
 117      public static function execute_returns(): external_single_structure {
 118          return new external_single_structure([
 119              'result' => new external_value(PARAM_BOOL, 'The processing result'),
 120              'warnings' => new external_warnings()
 121          ]);
 122      }
 123  }