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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace core_contentbank\external;
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use core_contentbank\contentbank;
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use core_external\external_api;
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use core_external\external_function_parameters;
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use core_external\external_multiple_structure;
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use core_external\external_single_structure;
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use core_external\external_value;
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use core_external\external_warnings;
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/**
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* This is the external method for deleting a content.
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*
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* @package core_contentbank
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* @since Moodle 3.9
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* @copyright 2020 Sara Arjona <sara@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class delete_content extends external_api {
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/**
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* Parameters.
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*
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* @return external_function_parameters
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*/
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public static function execute_parameters(): external_function_parameters {
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return new external_function_parameters([
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'contentids' => new external_multiple_structure(
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new external_value(PARAM_INT, 'The content id to delete', VALUE_REQUIRED)
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)
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]);
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}
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/**
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* Delete content from the contentbank.
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*
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* @param array $contentids List of content ids to delete.
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* @return array True if the content has been deleted; false and the warning, otherwise.
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*/
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public static function execute(array $contentids): array {
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global $DB;
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$result = false;
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$warnings = [];
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$params = self::validate_parameters(self::execute_parameters(), ['contentids' => $contentids]);
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$cb = new contentbank();
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foreach ($params['contentids'] as $contentid) {
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try {
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$record = $DB->get_record('contentbank_content', ['id' => $contentid], '*', MUST_EXIST);
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$content = $cb->get_content_from_id($record->id);
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$contenttype = $content->get_content_type_instance();
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$context = \context::instance_by_id($record->contextid, MUST_EXIST);
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self::validate_context($context);
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// Check capability.
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if ($contenttype->can_delete($content)) {
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// This content can be deleted.
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if (!$contenttype->delete_content($content)) {
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$warnings[] = [
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'item' => $contentid,
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'warningcode' => 'contentnotdeleted',
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'message' => get_string('contentnotdeleted', 'core_contentbank')
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];
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}
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} else {
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// The user has no permission to delete this content.
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$warnings[] = [
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'item' => $contentid,
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'warningcode' => 'nopermissiontodelete',
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'message' => get_string('nopermissiontodelete', 'core_contentbank')
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];
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}
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} catch (\moodle_exception $e) {
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// The content or the context don't exist.
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$warnings[] = [
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'item' => $contentid,
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'warningcode' => 'exception',
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'message' => $e->getMessage()
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];
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}
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}
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if (empty($warnings)) {
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$result = true;
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}
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return [
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'result' => $result,
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'warnings' => $warnings
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];
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}
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/**
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* Return.
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*
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* @return external_single_structure
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*/
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public static function execute_returns(): external_single_structure {
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return new external_single_structure([
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'result' => new external_value(PARAM_BOOL, 'The processing result'),
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'warnings' => new external_warnings()
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]);
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}
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}
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