769 lines
18 KiB
PHP
769 lines
18 KiB
PHP
<?php
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if ( ! class_exists( 'acf_field_select' ) ) :
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class acf_field_select 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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$this->name = 'select';
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$this->label = _x( 'Select', 'noun', 'acf' );
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$this->category = 'choice';
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$this->description = __( 'A dropdown list with a selection of choices that you specify.', 'acf' );
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$this->preview_image = acf_get_url() . '/assets/images/field-type-previews/field-preview-select.png';
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$this->doc_url = acf_add_url_utm_tags( 'https://www.advancedcustomfields.com/resources/select/', 'docs', 'field-type-selection' );
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$this->defaults = array(
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'multiple' => 0,
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'allow_null' => 0,
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'choices' => array(),
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'default_value' => '',
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'ui' => 0,
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'ajax' => 0,
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'placeholder' => '',
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'return_format' => 'value',
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);
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// ajax
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add_action( 'wp_ajax_acf/fields/select/query', array( $this, 'ajax_query' ) );
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add_action( 'wp_ajax_nopriv_acf/fields/select/query', array( $this, 'ajax_query' ) );
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}
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/*
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* input_admin_enqueue_scripts
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*
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* description
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*
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* @type function
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* @date 16/12/2015
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* @since 5.3.2
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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 input_admin_enqueue_scripts() {
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// bail early if no enqueue
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if ( ! acf_get_setting( 'enqueue_select2' ) ) {
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return;
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}
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// globals
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global $wp_scripts, $wp_styles;
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// vars
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$min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
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$major = acf_get_setting( 'select2_version' );
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$version = '';
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$script = '';
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$style = '';
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// attempt to find 3rd party Select2 version
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// - avoid including v3 CSS when v4 JS is already enququed
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if ( isset( $wp_scripts->registered['select2'] ) ) {
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$major = (int) $wp_scripts->registered['select2']->ver;
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}
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// v4
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if ( $major == 4 ) {
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$version = '4.0.13';
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$script = acf_get_url( "assets/inc/select2/4/select2.full{$min}.js" );
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$style = acf_get_url( "assets/inc/select2/4/select2{$min}.css" );
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// v3
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} else {
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$version = '3.5.2';
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$script = acf_get_url( "assets/inc/select2/3/select2{$min}.js" );
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$style = acf_get_url( 'assets/inc/select2/3/select2.css' );
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}
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// enqueue
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wp_enqueue_script( 'select2', $script, array( 'jquery' ), $version );
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wp_enqueue_style( 'select2', $style, '', $version );
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// localize
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acf_localize_data(
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array(
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'select2L10n' => array(
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'matches_1' => _x( 'One result is available, press enter to select it.', 'Select2 JS matches_1', 'acf' ),
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'matches_n' => _x( '%d results are available, use up and down arrow keys to navigate.', 'Select2 JS matches_n', 'acf' ),
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'matches_0' => _x( 'No matches found', 'Select2 JS matches_0', 'acf' ),
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'input_too_short_1' => _x( 'Please enter 1 or more characters', 'Select2 JS input_too_short_1', 'acf' ),
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'input_too_short_n' => _x( 'Please enter %d or more characters', 'Select2 JS input_too_short_n', 'acf' ),
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'input_too_long_1' => _x( 'Please delete 1 character', 'Select2 JS input_too_long_1', 'acf' ),
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'input_too_long_n' => _x( 'Please delete %d characters', 'Select2 JS input_too_long_n', 'acf' ),
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'selection_too_long_1' => _x( 'You can only select 1 item', 'Select2 JS selection_too_long_1', 'acf' ),
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'selection_too_long_n' => _x( 'You can only select %d items', 'Select2 JS selection_too_long_n', 'acf' ),
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'load_more' => _x( 'Loading more results…', 'Select2 JS load_more', 'acf' ),
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'searching' => _x( 'Searching…', 'Select2 JS searching', 'acf' ),
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'load_fail' => _x( 'Loading failed', 'Select2 JS load_fail', 'acf' ),
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),
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)
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);
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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 $post_id (int)
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*/
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function ajax_query() {
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// validate
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if ( ! acf_verify_ajax() ) {
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die();
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}
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// get choices
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$response = $this->get_ajax_query( $_POST );
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// return
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acf_send_ajax_results( $response );
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}
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/**
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* This function will return an array of data formatted for use in a select2 AJAX response
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*
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* @since 5.0.9
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*
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* @param array $options An array of options.
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* @return array A select2 compatible array of options.
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*/
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public function get_ajax_query( $options = array() ) {
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$options = acf_parse_args(
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$options,
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array(
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'post_id' => 0,
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's' => '',
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'field_key' => '',
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'paged' => 1,
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)
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);
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$shortcut = apply_filters( 'acf/fields/select/query', array(), $options );
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$shortcut = apply_filters( 'acf/fields/select/query/key=' . $options['field_key'], $shortcut, $options );
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if ( ! empty( $shortcut ) ) {
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return $shortcut;
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}
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// load field.
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$field = acf_get_field( $options['field_key'] );
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if ( ! $field ) {
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return false;
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}
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// get choices.
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$choices = acf_get_array( $field['choices'] );
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if ( empty( $field['choices'] ) ) {
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return false;
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}
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$results = array();
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$s = null;
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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 = strval( $options['s'] );
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$s = wp_unslash( $s );
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}
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foreach ( $field['choices'] as $k => $v ) {
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// ensure $v is a string.
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$v = strval( $v );
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// if searching, but doesn't exist.
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if ( is_string( $s ) && stripos( $v, $s ) === false ) {
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continue;
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}
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// append results.
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$results[] = array(
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'id' => $k,
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'text' => $v,
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);
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}
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$response = array(
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'results' => $results,
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);
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return $response;
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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( $field ) {
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// convert
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$value = acf_get_array( $field['value'] );
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$choices = acf_get_array( $field['choices'] );
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// placeholder
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if ( empty( $field['placeholder'] ) ) {
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$field['placeholder'] = _x( 'Select', 'verb', 'acf' );
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}
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// add empty value (allows '' to be selected)
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if ( empty( $value ) ) {
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$value = array( '' );
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}
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// prepend empty choice
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// - only for single selects
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// - have tried array_merge but this causes keys to re-index if is numeric (post ID's)
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if ( $field['allow_null'] && ! $field['multiple'] ) {
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$choices = array( '' => "- {$field['placeholder']} -" ) + $choices;
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}
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// clean up choices if using ajax
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if ( $field['ui'] && $field['ajax'] ) {
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$minimal = array();
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foreach ( $value as $key ) {
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if ( isset( $choices[ $key ] ) ) {
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$minimal[ $key ] = $choices[ $key ];
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}
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}
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$choices = $minimal;
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}
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// vars
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$select = array(
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'id' => $field['id'],
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'class' => $field['class'],
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'name' => $field['name'],
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'data-ui' => $field['ui'],
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'data-ajax' => $field['ajax'],
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'data-multiple' => $field['multiple'],
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'data-placeholder' => $field['placeholder'],
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'data-allow_null' => $field['allow_null'],
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);
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if ( $field['aria-label'] ) {
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$select['aria-label'] = $field['aria-label'];
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}
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// multiple
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if ( $field['multiple'] ) {
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$select['multiple'] = 'multiple';
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$select['size'] = 5;
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$select['name'] .= '[]';
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// Reduce size to single line if UI.
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if ( $field['ui'] ) {
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$select['size'] = 1;
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}
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}
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// special atts
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if ( ! empty( $field['readonly'] ) ) {
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$select['readonly'] = 'readonly';
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}
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if ( ! empty( $field['disabled'] ) ) {
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$select['disabled'] = 'disabled';
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}
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if ( ! empty( $field['ajax_action'] ) ) {
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$select['data-ajax_action'] = $field['ajax_action'];
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}
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if ( ! empty( $field['hide_search'] ) ) {
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$select['data-minimum-results-for-search'] = '-1';
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}
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// hidden input is needed to allow validation to see <select> element with no selected value
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if ( $field['multiple'] || $field['ui'] ) {
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acf_hidden_input(
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array(
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'id' => $field['id'] . '-input',
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'name' => $field['name'],
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)
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);
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}
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if ( ! empty( $field['query_nonce'] ) ) {
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$select['data-query-nonce'] = $field['query_nonce'];
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}
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// append
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$select['value'] = $value;
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$select['choices'] = $choices;
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// render
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acf_select_input( $select );
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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( $field ) {
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// encode choices (convert from array)
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$field['choices'] = acf_encode_choices( $field['choices'] );
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$field['default_value'] = acf_encode_choices( $field['default_value'], false );
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// choices
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Choices', 'acf' ),
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'instructions' => __( 'Enter each choice on a new line.', 'acf' ) . '<br />' . __( 'For more control, you may specify both a value and label like this:', 'acf' ) . '<br /><span class="acf-field-setting-example">' . __( 'red : Red', 'acf' ) . '</span>',
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'name' => 'choices',
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'type' => 'textarea',
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)
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);
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// default_value
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Default Value', 'acf' ),
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'instructions' => __( 'Enter each default value on a new line', 'acf' ),
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'name' => 'default_value',
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'type' => 'textarea',
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)
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);
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// return_format
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Return Format', 'acf' ),
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'instructions' => __( 'Specify the value returned', 'acf' ),
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'type' => 'radio',
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'name' => 'return_format',
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'layout' => 'horizontal',
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'choices' => array(
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'value' => __( 'Value', 'acf' ),
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'label' => __( 'Label', 'acf' ),
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'array' => __( 'Both (Array)', 'acf' ),
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),
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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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* Renders the field settings used in the "Presentation" 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_presentation_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' => __( 'Stylized UI', 'acf' ),
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'instructions' => __( 'Use a stylized checkbox using select2', 'acf' ),
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'name' => 'ui',
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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' => __( 'Use AJAX to lazy load choices?', 'acf' ),
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'instructions' => '',
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'name' => 'ajax',
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'type' => 'true_false',
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'ui' => 1,
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'conditions' => array(
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'field' => 'ui',
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'operator' => '==',
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'value' => 1,
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),
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)
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);
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}
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|
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/*
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* load_value()
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*
|
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* This filter is applied to the $value after it is loaded from 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 (mixed) the value found in 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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* @return $value
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*/
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function load_value( $value, $post_id, $field ) {
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// Return an array when field is set for multiple.
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if ( $field['multiple'] ) {
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if ( acf_is_empty( $value ) ) {
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return array();
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}
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return acf_array( $value );
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}
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// Otherwise, return a single value.
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return acf_unarray( $value );
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}
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|
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|
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/*
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|
* update_field()
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|
*
|
|
* This filter is appied to the $field before it is saved to the database
|
|
*
|
|
* @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 $field - the field array holding all the field options
|
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* @param $post_id - the field group ID (post_type = acf)
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*
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* @return $field - the modified field
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*/
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function update_field( $field ) {
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// decode choices (convert to array)
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$field['choices'] = acf_decode_choices( $field['choices'] );
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$field['default_value'] = acf_decode_choices( $field['default_value'], true );
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// Convert back to string for single selects.
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if ( ! $field['multiple'] ) {
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$field['default_value'] = acf_unarray( $field['default_value'] );
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}
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// return
|
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return $field;
|
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}
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|
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|
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/*
|
|
* update_value()
|
|
*
|
|
* This filter is appied to the $value before it is updated in the db
|
|
*
|
|
* @type filter
|
|
* @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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|
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// Bail early if no value.
|
|
if ( empty( $value ) ) {
|
|
return $value;
|
|
}
|
|
|
|
// Format array of values.
|
|
// - Parse each value as string for SQL LIKE queries.
|
|
if ( is_array( $value ) ) {
|
|
$value = array_map( 'strval', $value );
|
|
}
|
|
|
|
// return
|
|
return $value;
|
|
}
|
|
|
|
|
|
/*
|
|
* translate_field
|
|
*
|
|
* This function will translate field settings
|
|
*
|
|
* @type function
|
|
* @date 8/03/2016
|
|
* @since 5.3.2
|
|
*
|
|
* @param $field (array)
|
|
* @return $field
|
|
*/
|
|
|
|
function translate_field( $field ) {
|
|
|
|
// translate
|
|
$field['choices'] = acf_translate( $field['choices'] );
|
|
|
|
// return
|
|
return $field;
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
* format_value()
|
|
*
|
|
* This filter is appied to the $value after it is loaded from the db and before it is returned to the template
|
|
*
|
|
* @type filter
|
|
* @since 3.6
|
|
* @date 23/01/13
|
|
*
|
|
* @param $value (mixed) the value which was loaded from the database
|
|
* @param $post_id (mixed) the $post_id from which the value was loaded
|
|
* @param $field (array) the field array holding all the field options
|
|
*
|
|
* @return $value (mixed) the modified value
|
|
*/
|
|
function format_value( $value, $post_id, $field ) {
|
|
if ( is_array( $value ) ) {
|
|
foreach ( $value as $i => $val ) {
|
|
$value[ $i ] = $this->format_value_single( $val, $post_id, $field );
|
|
}
|
|
} else {
|
|
$value = $this->format_value_single( $value, $post_id, $field );
|
|
}
|
|
return $value;
|
|
}
|
|
|
|
|
|
function format_value_single( $value, $post_id, $field ) {
|
|
|
|
// bail early if is empty
|
|
if ( acf_is_empty( $value ) ) {
|
|
return $value;
|
|
}
|
|
|
|
// vars
|
|
$label = acf_maybe_get( $field['choices'], $value, $value );
|
|
|
|
// value
|
|
if ( $field['return_format'] == 'value' ) {
|
|
|
|
// do nothing
|
|
|
|
// label
|
|
} elseif ( $field['return_format'] == 'label' ) {
|
|
|
|
$value = $label;
|
|
|
|
// array
|
|
} elseif ( $field['return_format'] == 'array' ) {
|
|
|
|
$value = array(
|
|
'value' => $value,
|
|
'label' => $label,
|
|
);
|
|
|
|
}
|
|
|
|
// return
|
|
return $value;
|
|
|
|
}
|
|
|
|
/**
|
|
* Validates select 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 ) {
|
|
// rest_validate_request_arg() handles the other types, we just worry about strings.
|
|
if ( is_null( $value ) || is_array( $value ) ) {
|
|
return $valid;
|
|
}
|
|
|
|
$option_keys = array_diff(
|
|
array_keys( $field['choices'] ),
|
|
array_values( $field['choices'] )
|
|
);
|
|
|
|
$allowed = empty( $option_keys ) ? $field['choices'] : $option_keys;
|
|
|
|
if ( ! in_array( $value, $allowed ) ) {
|
|
$param = sprintf( '%s[%s]', $field['prefix'], $field['name'] );
|
|
$data = array(
|
|
'param' => $param,
|
|
'value' => $value,
|
|
);
|
|
$error = sprintf(
|
|
__( '%1$s is not one of %2$s', 'acf' ),
|
|
$param,
|
|
implode( ', ', $allowed )
|
|
);
|
|
|
|
return new WP_Error( 'rest_invalid_param', $error, $data );
|
|
}
|
|
|
|
return $valid;
|
|
}
|
|
|
|
/**
|
|
* Formats the choices available for the REST API.
|
|
*
|
|
* @since 6.2
|
|
*
|
|
* @param array $choices The choices for the field.
|
|
* @return array
|
|
*/
|
|
public function format_rest_choices( $choices ) {
|
|
$keys = array_keys( $choices );
|
|
$values = array_values( $choices );
|
|
$int_choices = array();
|
|
|
|
if ( array_diff( $keys, $values ) ) {
|
|
// User has specified custom keys.
|
|
$choices = $keys;
|
|
} else {
|
|
// Default keys, same as value.
|
|
$choices = $values;
|
|
}
|
|
|
|
// Assume everything is a string by default.
|
|
$choices = array_map( 'strval', $choices );
|
|
|
|
// Also allow integers if is_numeric().
|
|
foreach ( $choices as $choice ) {
|
|
if ( is_numeric( $choice ) ) {
|
|
$int_choices[] = (int) $choice;
|
|
}
|
|
}
|
|
|
|
return array_merge( $choices, $int_choices );
|
|
}
|
|
|
|
/**
|
|
* Return the schema array for the REST API.
|
|
*
|
|
* @param array $field The main field array.
|
|
* @return array
|
|
*/
|
|
public function get_rest_schema( array $field ) {
|
|
$schema = array(
|
|
'type' => array( 'string', 'array', 'int', 'null' ),
|
|
'required' => ! empty( $field['required'] ),
|
|
'items' => array(
|
|
'type' => array( 'string', 'int' ),
|
|
'enum' => $this->format_rest_choices( $field['choices'] ),
|
|
),
|
|
);
|
|
|
|
if ( empty( $field['allow_null'] ) ) {
|
|
$schema['minItems'] = 1;
|
|
}
|
|
|
|
if ( empty( $field['multiple'] ) ) {
|
|
$schema['maxItems'] = 1;
|
|
}
|
|
|
|
if ( isset( $field['default_value'] ) && '' !== $field['default_value'] ) {
|
|
$schema['default'] = $field['default_value'];
|
|
}
|
|
|
|
return $schema;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
// initialize
|
|
acf_register_field_type( 'acf_field_select' );
|
|
|
|
endif; // class_exists check
|
|
|
|
|