339 lines
7.8 KiB
PHP
339 lines
7.8 KiB
PHP
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<?php
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if ( ! class_exists( 'acf_field_button_group' ) ) :
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class acf_field_button_group extends acf_field {
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/**
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* initialize()
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*
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* This function will setup the field type data
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*
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* @date 18/9/17
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* @since 5.6.3
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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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$this->name = 'button_group';
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$this->label = __( 'Button Group', 'acf' );
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$this->category = 'choice';
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$this->description = __( 'A group of buttons with values that you specify, users can choose one option from the values provided.', 'acf' );
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$this->preview_image = acf_get_url() . '/assets/images/field-type-previews/field-preview-button-group.png';
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$this->doc_url = acf_add_url_utm_tags( 'https://www.advancedcustomfields.com/resources/button-group/', 'docs', 'field-type-selection' );
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$this->defaults = array(
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'choices' => array(),
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'default_value' => '',
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'allow_null' => 0,
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'return_format' => 'value',
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'layout' => 'horizontal',
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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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* Creates the field's input HTML
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*
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* @date 18/9/17
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* @since 5.6.3
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*
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* @param array $field The field settings array
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* @return n/a
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*/
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function render_field( $field ) {
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// vars
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$html = '';
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$selected = null;
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$buttons = array();
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$value = esc_attr( $field['value'] );
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// bail ealrly if no choices
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if ( empty( $field['choices'] ) ) {
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return;
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}
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// buttons
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foreach ( $field['choices'] as $_value => $_label ) {
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// checked
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$checked = ( $value === esc_attr( $_value ) );
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if ( $checked ) {
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$selected = true;
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}
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// append
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$buttons[] = array(
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'name' => $field['name'],
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'value' => $_value,
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'label' => $_label,
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'checked' => $checked,
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);
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}
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// maybe select initial value
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if ( ! $field['allow_null'] && $selected === null ) {
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$buttons[0]['checked'] = true;
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}
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// div
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$div = array( 'class' => 'acf-button-group' );
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if ( $field['layout'] == 'vertical' ) {
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$div['class'] .= ' -vertical'; }
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if ( $field['class'] ) {
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$div['class'] .= ' ' . $field['class']; }
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if ( $field['allow_null'] ) {
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$div['data-allow_null'] = 1; }
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// hdden input
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$html .= acf_get_hidden_input( array( 'name' => $field['name'] ) );
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// open
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$html .= '<div ' . acf_esc_attr( $div ) . '>';
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// loop
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foreach ( $buttons as $button ) {
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// checked
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if ( $button['checked'] ) {
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$button['checked'] = 'checked';
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} else {
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unset( $button['checked'] );
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}
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// append
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$html .= acf_get_radio_input( $button );
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}
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// close
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$html .= '</div>';
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// return
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echo $html;
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}
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/**
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* render_field_settings()
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*
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* Creates the field's settings HTML
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*
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* @date 18/9/17
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* @since 5.6.3
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*
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* @param array $field The field settings array
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* @return n/a
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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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}
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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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'horizontal' => __( 'Horizontal', 'acf' ),
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'vertical' => __( 'Vertical', '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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* @date 18/9/17
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* @since 5.6.3
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*
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* @param array $field The field array holding all the field options
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* @return $field
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*/
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function update_field( $field ) {
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return acf_get_field_type( 'radio' )->update_field( $field );
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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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* @date 18/9/17
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* @since 5.6.3
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*
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* @param mixed $value The value found in the database
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* @param mixed $post_id The post ID from which the value was loaded from
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* @param array $field 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 acf_get_field_type( 'radio' )->load_value( $value, $post_id, $field );
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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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* @date 18/9/17
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* @since 5.6.3
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*
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* @param array $field The field array holding all the field options
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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( 'radio' )->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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* @date 18/9/17
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* @since 5.6.3
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*
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* @param mixed $value The value found in the database
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* @param mixed $post_id The post ID from which the value was loaded from
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* @param array $field The field array holding all the field options
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* @return $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( 'radio' )->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'] = $field['default_value'];
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}
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$schema['enum'] = acf_get_field_type( 'select' )->format_rest_choices( $field['choices'] );
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$schema['enum'][] = null;
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// Allow null via UI will value to empty string.
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if ( ! empty( $field['allow_null'] ) ) {
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$schema['enum'][] = '';
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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_button_group' );
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endif; // class_exists check
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