leilukin-tumbleblog/modules/rights/rights.php

<?php
    class Rights extends Modules {
        public static function __uninstall($confirm): void {
            if ($confirm) {
                $sql = SQL::current();

                $sql->delete(
                    "post_attributes",
                    array("name" => "rights_title")
                );
                $sql->delete(
                    "post_attributes",
                    array("name" => "rights_holder")
                );
                $sql->delete(
                    "post_attributes",
                    array("name" => "rights_licence")
                );
            }
        }

        public function post_options($fields, $post = null): array {
            $licences = array(
                array(
                    "name" => __("All rights reserved", "rights"),
                    "value" => "All rights reserved",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "All rights reserved") :
                        true
                    ),
                array(
                    "name" => __("Creative Commons BY", "rights"),
                    "value" => "Creative Commons BY",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons BY") :
                        false
                    ),
                array(
                    "name" => __("Creative Commons BY-ND", "rights"),
                    "value" => "Creative Commons BY-ND",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons BY-ND") :
                        false
                    ),
                array(
                    "name" => __("Creative Commons BY-SA", "rights"),
                    "value" => "Creative Commons BY-SA",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons BY-SA") :
                        false
                    ),
                array(
                    "name" => __("Creative Commons BY-NC", "rights"),
                    "value" => "Creative Commons BY-NC",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons BY-NC") :
                        false
                    ),
                array(
                    "name" => __("Creative Commons BY-NC-ND", "rights"),
                    "value" => "Creative Commons BY-NC-ND",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons BY-NC-ND") :
                        false
                    ),
                array(
                    "name" => __("Creative Commons BY-NC-SA", "rights"),
                    "value" => "Creative Commons BY-NC-SA",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons BY-NC-SA") :
                        false
                    ),
                array(
                    "name" => __("Creative Commons CC0", "rights"),
                    "value" => "Creative Commons CC0",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Creative Commons CC0") :
                        false
                    ),
                array(
                    "name" => __("Orphan Work", "rights"),
                    "value" => "Orphan Work",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Orphan Work") :
                        false
                    ),
                array(
                    "name" => __("Public Domain", "rights"),
                      "value" => "Public Domain",
                      "selected" => isset($post) ?
                        ($post->rights_licence == "Public Domain") :
                        false
                    ),
                array(
                    "name" => __("Crown Copyright", "rights"),
                    "value" => "Crown Copyright",
                    "selected" => isset($post) ?
                        ($post->rights_licence == "Crown Copyright") :
                        false
                    )
            );

            $fields[] = array(
                "attr" => "option[rights_title]",
                "label" => __("Original Work", "rights"),
                "type" => "text",
                "value" => isset($post->rights_title) ?
                    $post->rights_title :
                    ""
            );

            $fields[] = array(
                "attr" => "option[rights_holder]",
                "label" => __("Rights Holder", "rights"),
                "type" => "text",
                "value" => isset($post->rights_holder) ?
                    $post->rights_holder :
                    ""
            );

            $fields[] = array(
                "attr" => "option[rights_licence]",
                "label" => __("License", "rights"),
                "help" => "choosing_a_licence",
                "type" => "select",
                "options" => $licences
            );

            return $fields;
        }

        public function feed_item($post, $feed): void {
            if (!empty($post->rights_licence))
               $feed->rights($post->rights_licence);
        }

        public function post_licence_link_attr($attr, $post): string {
            switch ($post->rights_licence) {
                case "Creative Commons BY":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/licenses/by/4.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons BY", "rights").
                            '</a>';
                    break;
                case "Creative Commons BY-ND":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/licenses/by-nd/4.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons BY-ND", "rights").
                            '</a>';
                    break;
                case "Creative Commons BY-SA":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/licenses/by-sa/4.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons BY-SA", "rights").
                            '</a>';
                    break;
                case "Creative Commons BY-NC":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/licenses/by-nc/4.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons BY-NC", "rights").
                            '</a>';
                    break;
                case "Creative Commons BY-NC-ND":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/licenses/by-nc-nd/4.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons BY-NC-ND", "rights").
                            '</a>';
                    break;
                case "Creative Commons BY-NC-SA":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/licenses/by-nc-sa/4.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons BY-NC-SA", "rights").
                            '</a>';
                    break;
                case "Creative Commons CC0":
                    $mark = '<a rel="license"'.
                            ' href="http://creativecommons.org/publicdomain/zero/1.0"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Creative Commons CC0", "rights").
                            '</a>';
                    break;
                case "Public Domain":
                    $mark = '<a rel="license"'.
                            ' href="http://wiki.creativecommons.org/Public_domain"'.
                            ' target="_blank" class="rights_licence_link">'.
                            __("Public Domain", "rights").
                            '</a>';
                    break;
                default:
                    $mark = __("All rights reserved", "rights");
            }

            return $mark;
        }
    }