482 lines
12 KiB
PHP
482 lines
12 KiB
PHP
<?php
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if ( ! class_exists( 'acf_field_radio' ) ) :
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class acf_field_radio 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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$this->name = 'radio';
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$this->label = __( 'Radio Button', 'acf' );
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$this->category = 'choice';
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$this->description = __( 'A group of radio button inputs that allows the user to make a single selection from values that you specify.', 'acf' );
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$this->preview_image = acf_get_url() . '/assets/images/field-type-previews/field-preview-radio-button.png';
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$this->doc_url = acf_add_url_utm_tags( 'https://www.advancedcustomfields.com/resources/radio-button/', 'docs', 'field-type-selection' );
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$this->defaults = array(
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'layout' => 'vertical',
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'choices' => array(),
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'default_value' => '',
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'other_choice' => 0,
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'save_other_choice' => 0,
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'allow_null' => 0,
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'return_format' => 'value',
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);
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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 (array) the $field being rendered
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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 (array) the $field being edited
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* @return n/a
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*/
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function render_field( $field ) {
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// vars
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$e = '';
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$ul = array(
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'class' => 'acf-radio-list',
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'data-allow_null' => $field['allow_null'],
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'data-other_choice' => $field['other_choice'],
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);
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// append to class
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$ul['class'] .= ' ' . ( $field['layout'] == 'horizontal' ? 'acf-hl' : 'acf-bl' );
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$ul['class'] .= ' ' . $field['class'];
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// Determine selected value.
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$value = (string) $field['value'];
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// 1. Selected choice.
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if ( isset( $field['choices'][ $value ] ) ) {
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$checked = (string) $value;
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// 2. Custom choice.
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} elseif ( $field['other_choice'] && $value !== '' ) {
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$checked = 'other';
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// 3. Empty choice.
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} elseif ( $field['allow_null'] ) {
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$checked = '';
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// 4. Default to first choice.
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} else {
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$checked = (string) key( $field['choices'] );
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}
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// other choice
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$other_input = false;
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if ( $field['other_choice'] ) {
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// Define other input attrs.
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$other_input = array(
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'type' => 'text',
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'name' => $field['name'],
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'value' => '',
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'disabled' => 'disabled',
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'class' => 'acf-disabled',
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);
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// Select other choice if value is not a valid choice.
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if ( $checked === 'other' ) {
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unset( $other_input['disabled'] );
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$other_input['value'] = $field['value'];
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}
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// Ensure an 'other' choice is defined.
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if ( ! isset( $field['choices']['other'] ) ) {
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$field['choices']['other'] = '';
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}
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}
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// Bail early if no choices.
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if ( empty( $field['choices'] ) ) {
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return;
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}
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// Hiden input.
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$e .= acf_get_hidden_input( array( 'name' => $field['name'] ) );
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// Open <ul>.
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$e .= '<ul ' . acf_esc_attr( $ul ) . '>';
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// Loop through choices.
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foreach ( $field['choices'] as $value => $label ) {
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$is_selected = false;
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// Ensure value is a string.
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$value = (string) $value;
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// Define input attrs.
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$attrs = array(
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'type' => 'radio',
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'id' => sanitize_title( $field['id'] . '-' . $value ),
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'name' => $field['name'],
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'value' => $value,
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);
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// Check if selected.
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if ( esc_attr( $value ) === esc_attr( $checked ) ) {
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$attrs['checked'] = 'checked';
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$is_selected = true;
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}
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// Check if is disabled.
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if ( isset( $field['disabled'] ) && acf_in_array( $value, $field['disabled'] ) ) {
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$attrs['disabled'] = 'disabled';
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}
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// Additional HTML (the "Other" input).
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$additional_html = '';
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if ( $value === 'other' && $other_input ) {
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$additional_html = ' ' . acf_get_text_input( $other_input );
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}
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// append
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$e .= '<li><label' . ( $is_selected ? ' class="selected"' : '' ) . '><input ' . acf_esc_attr( $attrs ) . '/>' . acf_esc_html( $label ) . '</label>' . $additional_html . '</li>';
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}
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// Close <ul>.
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$e .= '</ul>';
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// Output HTML.
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echo $e;
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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( $field['choices'] );
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acf_render_field_setting(
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$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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'type' => 'textarea',
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'name' => 'choices',
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Default Value', 'acf' ),
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'instructions' => __( 'Appears when creating a new post', 'acf' ),
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'type' => 'text',
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'name' => 'default_value',
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Return Value', 'acf' ),
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'instructions' => __( 'Specify the returned value on front end', '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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}
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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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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Allow Other Choice', 'acf' ),
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'name' => 'other_choice',
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'type' => 'true_false',
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'ui' => 1,
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'instructions' => __( "Add 'other' choice to allow for custom values", 'acf' ),
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Save Other Choice', 'acf' ),
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'name' => 'save_other_choice',
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'type' => 'true_false',
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'ui' => 1,
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'instructions' => __( "Save 'other' values to the field's choices", 'acf' ),
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'conditions' => array(
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'field' => 'other_choice',
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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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* 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' => __( 'Layout', 'acf' ),
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'instructions' => '',
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'type' => 'radio',
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'name' => 'layout',
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'layout' => 'horizontal',
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'choices' => array(
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'vertical' => __( 'Vertical', 'acf' ),
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'horizontal' => __( 'Horizontal', '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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* update_field()
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*
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* This filter is appied to the $field before it is saved to the database
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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 $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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// return
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return $field;
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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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* @todo Fix bug where $field was found via json and has no ID
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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 (allow 0 to be saved)
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if ( ! $value && ! is_numeric( $value ) ) {
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return $value;
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}
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// save_other_choice
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if ( $field['save_other_choice'] ) {
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// value isn't in choices yet
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if ( ! isset( $field['choices'][ $value ] ) ) {
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// get raw $field (may have been changed via repeater field)
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// if field is local, it won't have an ID
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$selector = $field['ID'] ? $field['ID'] : $field['key'];
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$field = acf_get_field( $selector );
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// bail early if no ID (JSON only)
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if ( ! $field['ID'] ) {
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return $value;
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}
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// unslash (fixes serialize single quote issue)
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$value = wp_unslash( $value );
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// sanitize (remove tags)
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$value = sanitize_text_field( $value );
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// update $field
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$field['choices'][ $value ] = $value;
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// save
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acf_update_field( $field );
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}
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}
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// return
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return $value;
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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 appied 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 5.2.9
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* @date 23/01/13
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*
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* @param $value - the value found in the database
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* @param $post_id - the $post_id from which the value was loaded from
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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 value to be saved in te database
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*/
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function load_value( $value, $post_id, $field ) {
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// must be single value
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if ( is_array( $value ) ) {
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$value = array_pop( $value );
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}
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// return
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return $value;
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}
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/*
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* translate_field
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*
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* This function will translate field settings
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*
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* @type function
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* @date 8/03/2016
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* @since 5.3.2
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*
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* @param $field (array)
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* @return $field
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*/
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function translate_field( $field ) {
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return acf_get_field_type( 'select' )->translate_field( $field );
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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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return acf_get_field_type( 'select' )->format_value( $value, $post_id, $field );
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}
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/**
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* Return the schema array for the REST API.
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*
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* @param array $field
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* @return array
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*/
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function get_rest_schema( array $field ) {
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$schema = parent::get_rest_schema( $field );
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if ( isset( $field['default_value'] ) && '' !== $field['default_value'] ) {
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$schema['default'] = $field['default_value'];
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}
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// If other/custom choices are allowed, nothing else to do here.
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if ( ! empty( $field['other_choice'] ) ) {
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return $schema;
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}
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$schema['enum'] = acf_get_field_type( 'select' )->format_rest_choices( $field['choices'] );
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if ( ! empty( $field['allow_null'] ) ) {
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$schema['enum'][] = null;
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}
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return $schema;
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}
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}
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// initialize
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acf_register_field_type( 'acf_field_radio' );
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endif; // class_exists check
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