318 lines
13 KiB
PHP
318 lines
13 KiB
PHP
<?php
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/**
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* WP Multi – Modul: Gast-Autoren
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*
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* Automatisch aus wp-multi.php ausgelagert. Wird über den Loader in
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* wp-multi.php eingebunden (nur wenn das WP Multi Toolkit aktiv ist).
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*/
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if (!defined('ABSPATH')) { exit; }
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/*
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* Gast Autoren
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*/
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// Gast-Autor Eingabefeld in der Sidebar im Admin-Bereich hinzufügen
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function wp_multi_add_guest_author_field() {
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add_meta_box(
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'guest_author_meta_box',
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__('Gast-Autor', 'wp-multi'),
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'wp_multi_guest_author_field',
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['post', 'page', 'dein_custom_post_type'],
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'side',
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'high'
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);
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}
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add_action('add_meta_boxes', 'wp_multi_add_guest_author_field');
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// Callback-Funktion, die das Eingabefeld anzeigt
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function wp_multi_guest_author_field($post) {
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$guest_author = get_post_meta($post->ID, '_guest_author', true);
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wp_nonce_field('wp_multi_guest_author_nonce', 'wp_multi_guest_author_nonce_field');
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?>
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<label for="guest_author"><?php _e('Gast-Autor Name:', 'wp-multi'); ?></label>
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<input type="text" id="guest_author" name="guest_author" value="<?php echo esc_attr($guest_author); ?>" class="widefat" />
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<?php
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}
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// Speichern der Gast-Autor Daten
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function wp_multi_save_guest_author_meta($post_id) {
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if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) return;
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if (!isset($_POST['wp_multi_guest_author_nonce_field']) || !wp_verify_nonce($_POST['wp_multi_guest_author_nonce_field'], 'wp_multi_guest_author_nonce')) return;
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if (!current_user_can('edit_post', $post_id)) return;
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if (isset($_POST['guest_author'])) {
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$guest_author = sanitize_text_field(wp_unslash($_POST['guest_author']));
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update_post_meta($post_id, '_guest_author', $guest_author);
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} else {
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delete_post_meta($post_id, '_guest_author');
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}
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}
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add_action('save_post', 'wp_multi_save_guest_author_meta');
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// Gast-Autor anzeigen anstelle des regulären Autors im Frontend
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function wp_multi_display_guest_author($author_name) {
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if ((is_single() || is_archive() || is_home()) && !is_admin()) {
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$post = get_post();
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if ($post) {
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$guest_author = get_post_meta($post->ID, '_guest_author', true);
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if (!empty($guest_author)) {
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$author_name = $guest_author;
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}
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}
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}
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return $author_name;
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}
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add_filter('the_author', 'wp_multi_display_guest_author');
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// Anzeige des Gast-Autors in der Beitragsübersicht (Backend)
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function wp_multi_add_guest_author_column($columns) {
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if (isset($columns['author'])) {
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$columns['guest_author'] = __('Gast-Autor', 'wp-multi');
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}
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return $columns;
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}
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add_filter('manage_posts_columns', 'wp_multi_add_guest_author_column');
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function wp_multi_display_guest_author_column($column_name, $post_id) {
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if ($column_name == 'guest_author') {
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$guest_author = get_post_meta($post_id, '_guest_author', true);
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echo !empty($guest_author) ? esc_html($guest_author) : __('Kein Gast-Autor', 'wp-multi');
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}
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}
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add_action('manage_posts_custom_column', 'wp_multi_display_guest_author_column', 10, 2);
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// Der Gast-Autoren-Menüpunkt wird zentral in wp_multi_register_admin_menus() registriert.
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// Callback-Funktion für die Gast-Autor-Übersicht
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function wp_multi_guest_author_overview_page() {
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// Sortierparameter aus URL lesen
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$orderby = isset($_GET['orderby']) ? sanitize_key($_GET['orderby']) : 'guest_author';
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$order = isset($_GET['order']) && in_array(strtoupper($_GET['order']), ['ASC', 'DESC']) ? strtoupper($_GET['order']) : 'ASC';
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// Gültige Sortierfelder
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$valid_orderby = ['guest_author' => 'pm.meta_value', 'posts' => 'post_count'];
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$sql_orderby = isset($valid_orderby[$orderby]) ? $valid_orderby[$orderby] : 'pm.meta_value';
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$sql_order = $order;
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// Basis-URL für Sortier-Links
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$base_url = add_query_arg(['page' => 'guest_author_overview'], admin_url('admin.php'));
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global $wpdb;
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$query = "
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SELECT pm.meta_value AS guest_author, COUNT(*) AS post_count
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FROM {$wpdb->posts} p
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INNER JOIN {$wpdb->postmeta} pm ON p.ID = pm.post_id
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WHERE pm.meta_key = '_guest_author'
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AND pm.meta_value != ''
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AND p.post_status = 'publish'
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GROUP BY pm.meta_value
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ORDER BY {$sql_orderby} {$sql_order}
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";
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$guest_authors = $wpdb->get_results($query);
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wpmt_admin_page_open(
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__('Gast-Autoren', 'wp-multi'),
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__('Alle Gast-Autoren mit Anzahl ihrer veröffentlichten Beiträge', 'wp-multi')
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);
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wpmt_admin_card_open();
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?>
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<div class="wpm-table-wrap">
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<table class="wpm-table">
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<thead>
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<tr>
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<th>
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<a href="<?php echo esc_url(add_query_arg(['orderby' => 'guest_author', 'order' => ($orderby === 'guest_author' && $order === 'ASC') ? 'DESC' : 'ASC'], $base_url)); ?>">
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<?php _e('Gast-Autor', 'wp-multi'); ?>
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<?php if ($orderby === 'guest_author') : ?>
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<span><?php echo ($order === 'ASC') ? '↑' : '↓'; ?></span>
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<?php endif; ?>
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</a>
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</th>
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<th>
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<a href="<?php echo esc_url(add_query_arg(['orderby' => 'posts', 'order' => ($orderby === 'posts' && $order === 'ASC') ? 'DESC' : 'ASC'], $base_url)); ?>">
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<?php _e('Anzahl der Beiträge', 'wp-multi'); ?>
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<?php if ($orderby === 'posts') : ?>
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<span><?php echo ($order === 'ASC') ? '↑' : '↓'; ?></span>
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<?php endif; ?>
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</a>
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</th>
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</tr>
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</thead>
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<tbody>
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<?php if ($guest_authors) : ?>
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<?php foreach ($guest_authors as $author) : ?>
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<tr>
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<td><?php echo esc_html($author->guest_author); ?></td>
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<td><span class="wpm-badge"><?php echo esc_html($author->post_count); ?></span></td>
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</tr>
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<?php endforeach; ?>
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<?php else : ?>
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<tr><td colspan="2"><?php _e('Keine Gast-Autoren gefunden.', 'wp-multi'); ?></td></tr>
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<?php endif; ?>
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</tbody>
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</table>
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</div>
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<?php
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wpmt_admin_card_close();
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wpmt_admin_page_close();
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}
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// Funktion zum Erstellen der Gastautoren-Beitragsseite
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function wp_multi_create_guest_author_page() {
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$page_title = __('Gastautor Beiträge', 'wp-multi');
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$page_slug = 'gastautor-beitraege';
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$page = get_page_by_path($page_slug);
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if (!$page) {
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$page_id = wp_insert_post(array(
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'post_title' => $page_title,
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'post_name' => $page_slug,
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'post_content' => '[guest_author_posts]',
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'post_status' => 'publish',
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'post_type' => 'page',
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));
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if ($page_id && !is_wp_error($page_id)) {
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update_option('wp_multi_guest_author_page_id', $page_id);
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}
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} else {
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update_option('wp_multi_guest_author_page_id', $page->ID);
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}
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}
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add_action('init', 'wp_multi_create_guest_author_page');
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// Shortcode für Gastautoren-Liste
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function wp_multi_guest_author_shortcode() {
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ob_start();
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global $wpdb;
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// Alle Gastautoren mit Beitragsanzahl abrufen
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$query = "
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SELECT pm.meta_value AS guest_author, COUNT(*) AS post_count
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FROM {$wpdb->posts} p
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INNER JOIN {$wpdb->postmeta} pm ON p.ID = pm.post_id
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WHERE pm.meta_key = '_guest_author'
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AND pm.meta_value != ''
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AND p.post_status = 'publish'
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GROUP BY pm.meta_value
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ORDER BY pm.meta_value ASC
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";
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$guest_authors = $wpdb->get_results($query);
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// URL der Gastautoren-Beitragsseite
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$guest_author_page_id = get_option('wp_multi_guest_author_page_id');
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$guest_author_page_url = $guest_author_page_id ? get_permalink($guest_author_page_id) : '#';
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?>
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<div id="guest-author-section" class="container mx-auto px-4 py-8">
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<!-- Gastautoren-Liste -->
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<div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
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<?php if ($guest_authors) : ?>
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<?php foreach ($guest_authors as $author) : ?>
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<a href="<?php echo esc_url(add_query_arg('guest_author', urlencode($author->guest_author), $guest_author_page_url)); ?>" class="guest-author-card bg-white p-6 rounded-lg shadow-md hover:shadow-lg transition">
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<h3 class="text-xl font-semibold text-gray-800"><?php echo esc_html($author->guest_author); ?></h3>
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<p class="text-gray-600"><?php echo esc_html($author->post_count); ?> <?php _e('Beiträge', 'wp-multi'); ?></p>
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</a>
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<?php endforeach; ?>
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<?php else : ?>
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<p class="col-span-2 text-center text-gray-600"><?php _e('Keine Gastautoren gefunden.', 'wp-multi'); ?></p>
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<?php endif; ?>
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</div>
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</div>
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<!-- Tailwind CSS CDN -->
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<script src="https://cdn.tailwindcss.com"></script>
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<?php
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return ob_get_clean();
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}
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add_shortcode('guest_authors', 'wp_multi_guest_author_shortcode');
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// Shortcode für Gastautoren-Beiträge
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function wp_multi_guest_author_posts_shortcode() {
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ob_start();
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$guest_author = isset($_GET['guest_author']) ? sanitize_text_field(wp_unslash($_GET['guest_author'])) : '';
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?>
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<div id="guest-author-posts" class="container mx-auto px-4 py-8">
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<h2 class="text-2xl font-semibold text-gray-800 mb-4">
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<?php
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if ($guest_author) {
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printf(__('Beiträge von %s', 'wp-multi'), esc_html($guest_author));
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} else {
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_e('Beiträge auswählen', 'wp-multi');
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}
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?>
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</h2>
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<div class="grid grid-cols-1 md:grid-cols-2 gap-6">
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<?php
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if ($guest_author) {
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$args = array(
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'post_type' => ['post', 'page', 'dein_custom_post_type'],
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'post_status' => 'publish',
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'meta_query' => array(
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array(
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'key' => '_guest_author',
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'value' => $guest_author,
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'compare' => '='
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)
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),
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'tax_query' => array(
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array(
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'taxonomy' => 'category',
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'field' => 'slug',
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'terms' => 'series',
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'operator' => 'NOT IN'
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)
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),
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'posts_per_page' => -1
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);
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$query = new WP_Query($args);
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if ($query->have_posts()) {
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while ($query->have_posts()) {
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$query->the_post();
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// Beitragsinhalt abrufen und kürzen
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$content = get_the_content();
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$content = wp_strip_all_tags($content); // HTML-Tags entfernen
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$trimmed_content = wp_trim_words($content, 30, '...');
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?>
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<div class="post-card bg-white p-6 rounded-lg shadow-md">
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<h3 class="text-lg font-medium text-gray-800">
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<a href="<?php the_permalink(); ?>" class="hover:text-blue-600"><?php the_title(); ?></a>
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</h3>
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<p class="text-gray-600 line-clamp-3"><?php echo esc_html($trimmed_content); ?></p>
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</div>
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<?php
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}
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wp_reset_postdata();
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} else {
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?>
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<p class="col-span-2 text-gray-600"><?php _e('Keine Beiträge gefunden.', 'wp-multi'); ?></p>
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<?php
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}
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} else {
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?>
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<p class="col-span-2 text-gray-600"><?php _e('Wählen Sie einen Gastautor aus, um die Beiträge anzuzeigen.', 'wp-multi'); ?></p>
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<?php
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}
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?>
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</div>
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</div>
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<!-- Tailwind CSS CDN -->
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<script src="https://cdn.tailwindcss.com"></script>
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<?php
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return ob_get_clean();
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}
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add_shortcode('guest_author_posts', 'wp_multi_guest_author_posts_shortcode');
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