' . __('Ein Fehler ist aufgetreten', 'wp-multi-search') . '';
}
}
add_shortcode('custom_search', 'csp_search_form');
class CSP_Search_Widget extends WP_Widget {
public function __construct() {
parent::__construct('csp_search_widget', __('Suche Widget', 'wp-multi-search'), array('description' => __('Suchfeld mit Optionen für Titel- und Gastautoren-Suche', 'wp-multi-search')));
}
public function widget($args, $instance) { echo $args['before_widget'] . '' . csp_search_form() . $args['after_widget']; }
public function form($instance) { echo '' . __('Keine Einstellungen verfügbar', 'wp-multi-search') . '
'; }
public function update($new_instance, $old_instance) { return $new_instance; }
}
function csp_register_widget() { register_widget('CSP_Search_Widget'); }
add_action('widgets_init', 'csp_register_widget');
function csp_add_menu_page() {
add_options_page('WP-Multi-Search Settings', 'WP-Multi-Search', 'manage_options', 'custom-search-settings', 'csp_render_settings_page');
}
add_action('admin_menu', 'csp_add_menu_page');
function csp_render_settings_page() {
if (isset($_POST['csp_settings_nonce']) && !wp_verify_nonce($_POST['csp_settings_nonce'], 'csp_settings_save')) {
wp_die('Security check failed');
}
?>
'sanitize_text_field'));
add_settings_section('csp_main_section', 'ShiftNav Position', 'csp_section_callback', 'custom-search-settings');
add_settings_field('csp_shiftnav_position_select', 'Select ShiftNav Position', 'csp_shiftnav_position_select_callback', 'custom-search-settings', 'csp_main_section');
}
add_action('admin_init', 'csp_register_settings');
function csp_section_callback() { echo __('Choose where to display the search form in ShiftNav:', 'wp-multi-search'); }
function csp_shiftnav_position_select_callback() {
$positions = array('top' => __('Top of ShiftNav', 'wp-multi-search'), 'bottom' => __('Bottom of ShiftNav', 'wp-multi-search'), 'none' => __('Do not display in ShiftNav', 'wp-multi-search'));
$selected_position = get_option('csp_shiftnav_position', 'none');
echo '';
}
function csp_insert_search_form_in_shiftnav($nav_menu, $args) {
if (!isset($args->theme_location) || $args->theme_location !== 'shiftnav') return $nav_menu;
$position = get_option('csp_shiftnav_position', 'none');
if ($position === 'none') return $nav_menu;
$search_form = '';
return $position === 'top' ? $search_form . $nav_menu : $nav_menu . $search_form;
}
add_filter('wp_nav_menu_items', 'csp_insert_search_form_in_shiftnav', 10, 2);
function csp_custom_search_results($query) {
if (!is_admin() && $query->is_search() && $query->is_main_query()) {
$query->set('post_status', 'publish');
$search_type = isset($_GET['search_type']) ? sanitize_text_field($_GET['search_type']) : 'all';
$search_term = $query->get('s');
switch($search_type) {
case 'title':
$query->set('post_title_like', $search_term);
$query->set('s', '');
add_filter('posts_where', 'csp_title_search_where', 10, 2);
break;
case 'guest_author':
$meta_query = array(
array(
'key' => '_guest_author',
'value' => $search_term,
'compare' => 'LIKE'
)
);
$query->set('meta_query', $meta_query);
$query->set('s', '');
$query->set('post_type', 'post');
break;
default:
$query->set('_meta_or_title', $search_term);
add_filter('posts_search', 'csp_custom_search_where', 10, 2);
add_filter('posts_join', 'csp_custom_search_join', 10, 2);
add_filter('posts_groupby', 'csp_custom_search_groupby', 10, 2);
break;
}
add_filter('posts_request', function($sql) {
error_log('SQL Query: ' . $sql);
return $sql;
});
add_action('wp', function() use ($search_type) {
switch($search_type) {
case 'title':
remove_filter('posts_where', 'csp_title_search_where', 10);
break;
case 'guest_author':
break;
default:
remove_filter('posts_search', 'csp_custom_search_where', 10);
remove_filter('posts_join', 'csp_custom_search_join', 10);
remove_filter('posts_groupby', 'csp_custom_search_groupby', 10);
break;
}
});
}
}
add_action('pre_get_posts', 'csp_custom_search_results');
function csp_title_search_where($where, $query) {
global $wpdb;
if ($search_term = $query->get('post_title_like')) {
$where .= $wpdb->prepare(
" AND {$wpdb->posts}.post_title LIKE %s",
'%' . $wpdb->esc_like($search_term) . '%'
);
}
return $where;
}
function csp_custom_search_where($where, $query) {
global $wpdb;
if ($search_term = $query->get('_meta_or_title')) {
$search = '%' . $wpdb->esc_like($search_term) . '%';
$where .= $wpdb->prepare(
" AND ({$wpdb->posts}.post_title LIKE %s
OR {$wpdb->posts}.post_content LIKE %s
OR {$wpdb->posts}.post_excerpt LIKE %s
OR guest_author.meta_value LIKE %s
OR {$wpdb->users}.display_name LIKE %s)",
$search, $search, $search, $search, $search
);
}
return $where;
}
function csp_custom_search_join($join, $query) {
global $wpdb;
if ($query->get('_meta_or_title')) {
$join .= " LEFT JOIN {$wpdb->postmeta} guest_author ON ({$wpdb->posts}.ID = guest_author.post_id AND guest_author.meta_key = '_guest_author')";
$join .= " LEFT JOIN {$wpdb->users} ON ({$wpdb->posts}.post_author = {$wpdb->users}.ID)";
}
return $join;
}
function csp_custom_search_groupby($groupby, $query) {
global $wpdb;
if ($query->get('_meta_or_title')) {
$groupby = "{$wpdb->posts}.ID";
}
return $groupby;
}
function csp_guest_author_search_where($where, $query) {
global $wpdb;
if ($query->get('meta_query')) {
$where .= " AND EXISTS (
SELECT 1 FROM {$wpdb->postmeta}
WHERE {$wpdb->postmeta}.post_id = {$wpdb->posts}.ID
AND {$wpdb->postmeta}.meta_key = '_guest_author'
AND {$wpdb->postmeta}.meta_value LIKE '%" . $wpdb->esc_like($query->get('s')) . "%'
)";
}
return $where;
}
add_filter('posts_where', 'csp_guest_author_search_where', 10, 2);