218 lines
6.5 KiB
PHP
218 lines
6.5 KiB
PHP
<?php
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/**
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* /lib/shortcodes.php
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*
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* @package Relevanssi
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* @author Mikko Saari
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* @license https://wordpress.org/about/gpl/ GNU General Public License
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* @see https://www.relevanssi.com/
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*/
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add_shortcode( 'search', 'relevanssi_shortcode' );
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add_shortcode( 'noindex', 'relevanssi_noindex_shortcode' );
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add_shortcode( 'searchform', 'relevanssi_search_form' );
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/**
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* Creates a link to search results.
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*
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* Using this is generally not a brilliant idea, actually. Google doesn't like
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* it if you create links to internal search results.
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*
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* Usage: [search term='tomato']tomatoes[/search] would create a link like this:
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* <a href="/?s=tomato">tomatoes</a>
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*
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* Set 'phrase' to something else than 'not' to make the search term a phrase.
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*
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* @global object $wpdb The WordPress database interface.
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*
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* @param array $atts The shortcode attributes. If 'term' is set, will use
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* it as the search term, otherwise the content word is used as the term.
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* @param string $content The content inside the shortcode tags.
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*
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* @return string A link to search results.
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*/
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function relevanssi_shortcode( $atts, $content ) {
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$attributes = shortcode_atts(
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array(
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'term' => false,
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'phrase' => 'not',
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),
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$atts
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);
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$term = $attributes['term'];
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$phrase = $attributes['phrase'];
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if ( false !== $term ) {
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$term = rawurlencode( relevanssi_strtolower( $term ) );
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} else {
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$term = rawurlencode( wp_strip_all_tags( relevanssi_strtolower( $content ) ) );
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}
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if ( 'not' !== $phrase ) {
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$term = '%22' . $term . '%22';
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}
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$link = get_bloginfo( 'url' ) . "/?s=$term";
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$pre = "<a rel='nofollow' href='$link'>"; // rel='nofollow' for Google.
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$post = '</a>';
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return $pre . do_shortcode( $content ) . $post;
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}
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/**
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* Does nothing.
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*
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* In normal use, the [noindex] shortcode does nothing.
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*
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* @param array $atts The shortcode attributes. Not used.
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* @param string $content The content inside the shortcode tags.
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*
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* @return string The shortcode content.
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*/
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function relevanssi_noindex_shortcode( $atts, $content ) {
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return do_shortcode( $content );
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}
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/**
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* Returns nothing.
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*
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* During indexing, the [noindex] shortcode returns nothing.
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*
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* @return string An empty string.
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*/
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function relevanssi_noindex_shortcode_indexing() {
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return '';
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}
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/**
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* Returns a search form.
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*
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* Returns a search form generated by get_search_form(). Any attributes passed to the
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* shortcode will be passed onto the search form, for example like this:
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*
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* [searchform post_types='post,product']
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*
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* This would add a
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*
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* <input type="hidden" name="post_types" value="post,product" />
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*
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* to the search form.
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*
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* @param array $atts The shortcode attributes.
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*
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* @return string A search form.
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*/
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function relevanssi_search_form( $atts ) {
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$form = get_search_form( false );
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if ( is_array( $atts ) ) {
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$additional_fields = array();
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foreach ( $atts as $key => $value ) {
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if ( 'dropdown' === substr( $key, 0, 8 ) ) {
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$key = 'dropdown';
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}
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if ( 'checklist' === substr( $key, 0, 9 ) ) {
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$key = 'checklist';
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}
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if ( 'post_type_boxes' === $key ) {
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$post_types = explode( ',', $value );
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if ( is_array( $post_types ) ) {
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$post_type_objects = get_post_types( array(), 'objects' );
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$additional_fields[] = '<div class="post_types"><strong>Post types</strong>: ';
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foreach ( $post_types as $post_type ) {
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$checked = '';
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if ( '*' === substr( $post_type, 0, 1 ) ) {
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$post_type = substr( $post_type, 1 );
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$checked = ' checked="checked" ';
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}
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if ( isset( $post_type_objects[ $post_type ] ) ) {
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$additional_fields[] = '<span class="post_type post_type_' . $post_type . '">'
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. '<input type="checkbox" name="post_types[]" value="' . $post_type . '"' . $checked . '/> '
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. $post_type_objects[ $post_type ]->name . '</span>';
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}
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}
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$additional_fields[] = '</div>';
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}
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} elseif ( 'dropdown' === $key && 'post_type' === $value ) {
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$field = '<select name="post_type">';
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$types = get_option( 'relevanssi_index_post_types', array() );
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if ( ! is_array( $types ) ) {
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$types = array();
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}
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foreach ( $types as $type ) {
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if ( post_type_exists( $type ) ) {
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$object = get_post_type_object( $type );
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$field .= '<option value="' . $type . '">' . $object->labels->singular_name . '</option>';
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}
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}
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$field .= '</select>';
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$additional_fields[] = $field;
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} elseif ( 'dropdown' === $key && 'post_type' !== $value ) {
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$name = $value;
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if ( 'category' === $value ) {
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$name = 'cat';
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}
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if ( 'post_tag' === $value ) {
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$name = 'tag';
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}
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$args = array(
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'taxonomy' => $value,
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'echo' => 0,
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'hide_if_empty' => true,
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'show_option_none' => __( 'None' ),
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'name' => $name,
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'option_none_value' => 0,
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'orderby' => 'name',
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);
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$additional_fields[] = wp_dropdown_categories(
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/**
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* Filters the arguments for the Relevanssi search form
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* taxonomy dropdowns.
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*
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* Filters the argument array for wp_dropdown_categories().
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*
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* @param array $args The arguments for the dropdown.
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* @see wp_dropdown_categories()
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*/
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apply_filters( 'relevanssi_searchform_dropdown_args', $args )
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);
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} elseif ( 'checklist' === $key && 'post_type' !== $value ) {
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$name = $value;
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if ( 'category' === $value ) {
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$name = 'cat';
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}
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if ( 'post_tag' === $value ) {
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$name = 'tag';
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}
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$args = array(
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'taxonomy' => $value,
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'echo' => 0,
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);
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if ( ! function_exists( 'wp_terms_checklist' ) ) {
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include ABSPATH . 'wp-admin/includes/template.php';
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}
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$checklist = wp_terms_checklist( 0, $args );
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$checklist = str_replace( 'post_category', 'cats', $checklist );
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$checklist = str_replace( 'tax_input[post_tag]', 'tags', $checklist );
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$checklist = str_replace( "disabled='disabled'", '', $checklist );
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$checklist = preg_replace( '/tax_input\[(.*?)\]/', '\1', $checklist );
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$additional_fields[] = $checklist;
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} else {
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$key = esc_attr( $key );
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$value = esc_attr( $value );
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$additional_fields[] = "<input type='hidden' name='$key' value='$value' />";
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}
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}
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$form = str_replace( '</form>', implode( "\n", $additional_fields ) . '</form>', $form );
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}
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/**
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* Filters the Relevanssi shortcode search form before it's used.
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*
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* @param string $form The form HTML code.
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* @param array $atts The shortcode attributes.
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*/
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return apply_filters( 'relevanssi_search_form', $form, $atts );
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}
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