694 lines
16 KiB
PHP
694 lines
16 KiB
PHP
<?php
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if ( ! class_exists( 'acf_field_page_link' ) ) :
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class acf_field_page_link extends acf_field {
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/*
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* __construct
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*
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* This function will setup the field type data
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*
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* @type function
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* @date 5/03/2014
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* @since 5.0.0
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*
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* @param n/a
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* @return n/a
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*/
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function initialize() {
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// vars
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$this->name = 'page_link';
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$this->label = __( 'Page Link', 'acf' );
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$this->category = 'relational';
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$this->description = __( 'An interactive dropdown to select one or more posts, pages, custom post type items or archive URLs, with the option to search.', 'acf' );
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$this->preview_image = acf_get_url() . '/assets/images/field-type-previews/field-preview-page-link.png';
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$this->doc_url = acf_add_url_utm_tags( 'https://www.advancedcustomfields.com/resources/page-link/', 'docs', 'field-type-selection' );
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$this->defaults = array(
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'post_type' => array(),
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'taxonomy' => array(),
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'allow_null' => 0,
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'multiple' => 0,
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'allow_archives' => 1,
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);
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// extra
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add_action( 'wp_ajax_acf/fields/page_link/query', array( $this, 'ajax_query' ) );
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add_action( 'wp_ajax_nopriv_acf/fields/page_link/query', array( $this, 'ajax_query' ) );
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}
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/*
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* ajax_query
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*
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* description
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*
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* @type function
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* @date 24/10/13
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* @since 5.0.0
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*
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* @param $post_id (int)
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* @return $post_id (int)
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*/
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function ajax_query() {
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// validate
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if ( ! acf_verify_ajax() ) {
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die();
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}
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// defaults
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$options = acf_parse_args(
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$_POST,
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array(
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'post_id' => 0,
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's' => '',
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'field_key' => '',
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'paged' => 1,
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)
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);
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// vars
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$results = array();
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$args = array();
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$s = false;
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$is_search = false;
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// paged
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$args['posts_per_page'] = 20;
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$args['paged'] = $options['paged'];
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// search
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if ( $options['s'] !== '' ) {
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// strip slashes (search may be integer)
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$s = wp_unslash( strval( $options['s'] ) );
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// update vars
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$args['s'] = $s;
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$is_search = true;
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}
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// load field
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$field = acf_get_field( $options['field_key'] );
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if ( ! $field ) {
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die();
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}
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// update $args
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if ( ! empty( $field['post_type'] ) ) {
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$args['post_type'] = acf_get_array( $field['post_type'] );
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} else {
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$args['post_type'] = acf_get_post_types();
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}
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// post status
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if ( ! empty( $options['post_status'] ) ) {
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$args['post_status'] = acf_get_array( $options['post_status'] );
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} elseif ( ! empty( $field['post_status'] ) ) {
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$args['post_status'] = acf_get_array( $field['post_status'] );
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}
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// create tax queries
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if ( ! empty( $field['taxonomy'] ) ) {
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// append to $args
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$args['tax_query'] = array();
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// decode terms
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$taxonomies = acf_decode_taxonomy_terms( $field['taxonomy'] );
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// now create the tax queries
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foreach ( $taxonomies as $taxonomy => $terms ) {
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$args['tax_query'][] = array(
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'taxonomy' => $taxonomy,
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'field' => 'slug',
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'terms' => $terms,
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);
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}
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}
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// filters
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$args = apply_filters( 'acf/fields/page_link/query', $args, $field, $options['post_id'] );
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$args = apply_filters( 'acf/fields/page_link/query/name=' . $field['name'], $args, $field, $options['post_id'] );
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$args = apply_filters( 'acf/fields/page_link/query/key=' . $field['key'], $args, $field, $options['post_id'] );
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// add archives to $results
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if ( $field['allow_archives'] && $args['paged'] == 1 ) {
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// Generate unique list of URLs.
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$links = array();
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$links[] = home_url();
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foreach ( $args['post_type'] as $post_type ) {
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$links[] = get_post_type_archive_link( $post_type );
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}
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$links = array_filter( $links );
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$links = array_unique( $links );
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// Convert list into choices.
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$children = array();
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foreach ( $links as $link ) {
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// Ignore if search does not match.
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if ( $is_search && stripos( $link, $s ) === false ) {
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continue;
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}
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$children[] = array(
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'id' => $link,
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'text' => $link,
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);
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}
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if ( $children ) {
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$results[] = array(
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'text' => __( 'Archives', 'acf' ),
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'children' => $children,
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);
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}
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}
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// get posts grouped by post type
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$groups = acf_get_grouped_posts( $args );
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// loop
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if ( ! empty( $groups ) ) {
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foreach ( array_keys( $groups ) as $group_title ) {
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// vars
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$posts = acf_extract_var( $groups, $group_title );
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// data
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$data = array(
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'text' => $group_title,
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'children' => array(),
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);
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// convert post objects to post titles
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foreach ( array_keys( $posts ) as $post_id ) {
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$posts[ $post_id ] = $this->get_post_title( $posts[ $post_id ], $field, $options['post_id'], $is_search );
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}
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// order posts by search
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if ( $is_search && empty( $args['orderby'] ) && isset( $args['s'] ) ) {
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$posts = acf_order_by_search( $posts, $args['s'] );
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}
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// append to $data
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foreach ( array_keys( $posts ) as $post_id ) {
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$data['children'][] = $this->get_post_result( $post_id, $posts[ $post_id ] );
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}
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// append to $results
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$results[] = $data;
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}
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}
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// return
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acf_send_ajax_results(
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array(
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'results' => $results,
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'limit' => $args['posts_per_page'],
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)
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);
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}
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/*
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* get_post_result
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*
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* This function will return an array containing id, text and maybe description data
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*
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* @type function
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* @date 7/07/2016
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* @since 5.4.0
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*
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* @param $id (mixed)
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* @param $text (string)
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* @return (array)
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*/
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function get_post_result( $id, $text ) {
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// vars
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$result = array(
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'id' => $id,
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'text' => $text,
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);
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// look for parent
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$search = '| ' . __( 'Parent', 'acf' ) . ':';
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$pos = strpos( $text, $search );
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if ( $pos !== false ) {
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$result['description'] = substr( $text, $pos + 2 );
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$result['text'] = substr( $text, 0, $pos );
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}
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// return
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return $result;
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}
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/*
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* get_post_title
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*
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* This function returns the HTML for a result
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*
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* @type function
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* @date 1/11/2013
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* @since 5.0.0
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*
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* @param $post (object)
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* @param $field (array)
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* @param $post_id (int) the post_id to which this value is saved to
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* @return (string)
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*/
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function get_post_title( $post, $field, $post_id = 0, $is_search = 0 ) {
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// get post_id
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if ( ! $post_id ) {
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$post_id = acf_get_form_data( 'post_id' );
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}
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// vars
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$title = acf_get_post_title( $post, $is_search );
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// filters
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$title = apply_filters( 'acf/fields/page_link/result', $title, $post, $field, $post_id );
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$title = apply_filters( 'acf/fields/page_link/result/name=' . $field['_name'], $title, $post, $field, $post_id );
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$title = apply_filters( 'acf/fields/page_link/result/key=' . $field['key'], $title, $post, $field, $post_id );
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// return
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return $title;
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}
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/*
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* get_posts
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*
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* This function will return an array of posts for a given field value
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*
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* @type function
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* @date 13/06/2014
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* @since 5.0.0
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*
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* @param $value (array)
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* @return $value
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*/
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function get_posts( $value, $field ) {
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// force value to array
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$value = acf_get_array( $value );
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// get selected post ID's
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$post__in = array();
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foreach ( $value as $k => $v ) {
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if ( is_numeric( $v ) ) {
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// append to $post__in
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$post__in[] = (int) $v;
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}
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}
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// bail early if no posts
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if ( empty( $post__in ) ) {
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return $value;
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}
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// get posts
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$posts = acf_get_posts(
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array(
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'post__in' => $post__in,
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'post_type' => $field['post_type'],
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)
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);
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// override value with post
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$return = array();
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// append to $return
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foreach ( $value as $k => $v ) {
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if ( is_numeric( $v ) ) {
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// extract first post
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$post = array_shift( $posts );
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// append
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if ( $post ) {
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$return[] = $post;
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}
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} else {
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$return[] = $v;
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}
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}
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// return
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return $return;
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}
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/*
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* render_field()
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*
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* Create the HTML interface for your field
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*
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* @param $field - an array holding all the field's data
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*
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* @type action
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* @since 3.6
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* @date 23/01/13
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*/
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function render_field( $field ) {
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// Change Field into a select
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$field['type'] = 'select';
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$field['ui'] = 1;
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$field['ajax'] = 1;
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$field['choices'] = array();
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// populate choices if value exists
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if ( ! empty( $field['value'] ) ) {
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// get posts
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$posts = $this->get_posts( $field['value'], $field );
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// set choices
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if ( ! empty( $posts ) ) {
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foreach ( array_keys( $posts ) as $i ) {
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// vars
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$post = acf_extract_var( $posts, $i );
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if ( is_object( $post ) ) {
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// append to choices
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$field['choices'][ $post->ID ] = $this->get_post_title( $post, $field );
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} else {
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// append to choices
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$field['choices'][ $post ] = $post;
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}
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}
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}
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}
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// render
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acf_render_field( $field );
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}
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/*
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* render_field_settings()
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*
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* Create extra options for your field. This is rendered when editing a field.
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* The value of $field['name'] can be used (like bellow) to save extra data to the $field
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*
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* @type action
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* @since 3.6
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* @date 23/01/13
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*
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* @param $field - an array holding all the field's data
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*/
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function render_field_settings( $field ) {
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Filter by Post Type', 'acf' ),
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'instructions' => '',
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'type' => 'select',
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'name' => 'post_type',
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'choices' => acf_get_pretty_post_types(),
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'multiple' => 1,
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'ui' => 1,
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'allow_null' => 1,
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'placeholder' => __( 'All post types', 'acf' ),
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Filter by Post Status', 'acf' ),
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'instructions' => '',
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'type' => 'select',
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'name' => 'post_status',
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'choices' => acf_get_pretty_post_statuses(),
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'multiple' => 1,
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'ui' => 1,
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'allow_null' => 1,
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'placeholder' => __( 'Any post status', 'acf' ),
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Filter by Taxonomy', 'acf' ),
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'instructions' => '',
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'type' => 'select',
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'name' => 'taxonomy',
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'choices' => acf_get_taxonomy_terms(),
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'multiple' => 1,
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'ui' => 1,
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'allow_null' => 1,
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'placeholder' => __( 'All taxonomies', 'acf' ),
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Allow Archives URLs', 'acf' ),
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'instructions' => '',
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'name' => 'allow_archives',
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'type' => 'true_false',
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'ui' => 1,
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Select Multiple', 'acf' ),
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'instructions' => 'Allow content editors to select multiple values',
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'name' => 'multiple',
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'type' => 'true_false',
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'ui' => 1,
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)
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);
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}
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/**
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* Renders the field settings used in the "Validation" tab.
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*
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* @since 6.0
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*
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* @param array $field The field settings array.
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* @return void
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*/
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function render_field_validation_settings( $field ) {
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Allow Null', 'acf' ),
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'instructions' => '',
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'name' => 'allow_null',
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'type' => 'true_false',
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'ui' => 1,
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)
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);
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}
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/*
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* format_value()
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*
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* This filter is appied to the $value after it is loaded from the db and before it is returned to the template
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*
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* @type filter
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* @since 3.6
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* @date 23/01/13
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*
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* @param $value (mixed) the value which was loaded from the database
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* @param $post_id (mixed) the $post_id from which the value was loaded
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* @param $field (array) the field array holding all the field options
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*
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* @return $value (mixed) the modified value
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*/
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function format_value( $value, $post_id, $field ) {
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// ACF4 null
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if ( $value === 'null' ) {
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return false;
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}
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// bail early if no value
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if ( empty( $value ) ) {
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return $value;
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}
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// get posts
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$value = $this->get_posts( $value, $field );
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// set choices
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foreach ( array_keys( $value ) as $i ) {
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// vars
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$post = acf_extract_var( $value, $i );
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// convert $post to permalink
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if ( is_object( $post ) ) {
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$post = get_permalink( $post );
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}
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// append back to $value
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$value[ $i ] = $post;
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}
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// convert back from array if neccessary
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if ( ! $field['multiple'] ) {
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$value = array_shift( $value );
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}
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// return value
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return $value;
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}
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/*
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* update_value()
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*
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* This filter is appied to the $value before it is updated in the db
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*
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* @type filter
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* @since 3.6
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* @date 23/01/13
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*
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* @param $value - the value which will be saved in the database
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* @param $post_id - the $post_id of which the value will be saved
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* @param $field - the field array holding all the field options
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*
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* @return $value - the modified value
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*/
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function update_value( $value, $post_id, $field ) {
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// Bail early if no value.
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|
if ( empty( $value ) ) {
|
|
return $value;
|
|
}
|
|
|
|
// Format array of values.
|
|
// - ensure each value is an id.
|
|
// - Parse each id as string for SQL LIKE queries.
|
|
if ( acf_is_sequential_array( $value ) ) {
|
|
$value = array_map( 'acf_maybe_idval', $value );
|
|
$value = array_map( 'strval', $value );
|
|
|
|
// Parse single value for id.
|
|
} else {
|
|
$value = acf_maybe_idval( $value );
|
|
}
|
|
|
|
// Return value.
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* Validates page link fields updated via the REST API.
|
|
*
|
|
* @param bool $valid
|
|
* @param int $value
|
|
* @param array $field
|
|
*
|
|
* @return bool|WP_Error
|
|
*/
|
|
public function validate_rest_value( $valid, $value, $field ) {
|
|
return acf_get_field_type( 'post_object' )->validate_rest_value( $valid, $value, $field );
|
|
}
|
|
|
|
/**
|
|
* Return the schema array for the REST API.
|
|
*
|
|
* @param array $field
|
|
* @return array
|
|
*/
|
|
public function get_rest_schema( array $field ) {
|
|
$schema = array(
|
|
'type' => array( 'integer', 'array', 'null' ),
|
|
'required' => ! empty( $field['required'] ),
|
|
'items' => array(
|
|
'type' => array( 'integer' ),
|
|
),
|
|
);
|
|
|
|
if ( empty( $field['allow_null'] ) ) {
|
|
$schema['minItems'] = 1;
|
|
}
|
|
|
|
if ( ! empty( $field['allow_archives'] ) ) {
|
|
$schema['type'][] = 'string';
|
|
$schema['items']['type'][] = 'string';
|
|
}
|
|
|
|
if ( empty( $field['multiple'] ) ) {
|
|
$schema['maxItems'] = 1;
|
|
}
|
|
|
|
return $schema;
|
|
}
|
|
|
|
/**
|
|
* @see \acf_field::get_rest_links()
|
|
* @param mixed $value The raw (unformatted) field value.
|
|
* @param int|string $post_id
|
|
* @param array $field
|
|
* @return array
|
|
*/
|
|
public function get_rest_links( $value, $post_id, array $field ) {
|
|
$links = array();
|
|
|
|
if ( empty( $value ) ) {
|
|
return $links;
|
|
}
|
|
|
|
foreach ( (array) $value as $object_id ) {
|
|
if ( ! $post_type = get_post_type( $object_id ) or ! $post_type = get_post_type_object( $post_type ) ) {
|
|
continue;
|
|
}
|
|
$rest_base = acf_get_object_type_rest_base( $post_type );
|
|
$links[] = array(
|
|
'rel' => $post_type->name === 'attachment' ? 'acf:attachment' : 'acf:post',
|
|
'href' => rest_url( sprintf( '/wp/v2/%s/%s', $rest_base, $object_id ) ),
|
|
'embeddable' => true,
|
|
);
|
|
}
|
|
|
|
return $links;
|
|
}
|
|
|
|
/**
|
|
* Apply basic formatting to prepare the value for default REST output.
|
|
*
|
|
* @param mixed $value
|
|
* @param string|int $post_id
|
|
* @param array $field
|
|
* @return mixed
|
|
*/
|
|
public function format_value_for_rest( $value, $post_id, array $field ) {
|
|
return acf_format_numerics( $value );
|
|
}
|
|
}
|
|
|
|
|
|
// initialize
|
|
acf_register_field_type( 'acf_field_page_link' );
|
|
endif; // class_exists check
|