393 lines
7.5 KiB
PHP
393 lines
7.5 KiB
PHP
<?php
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/*
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* ACF Radio Button Field Class
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*
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* All the logic for this field type
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*
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* @class acf_field_radio
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* @extends acf_field
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* @package ACF
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* @subpackage Fields
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*/
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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 __construct() {
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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->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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);
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// do not delete!
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parent::__construct();
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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( $field ) {
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// vars
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$i = 0;
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$checked = false;
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// class
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$field['class'] .= ' acf-radio-list';
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$field['class'] .= ($field['layout'] == 'horizontal') ? ' acf-hl' : ' acf-bl';
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// e
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$e = '<ul ' . acf_esc_attr(array( 'class' => $field['class'] )) . '>';
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// other choice
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if( $field['other_choice'] ) {
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// vars
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$input = array(
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'type' => 'text',
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'name' => $field['name'],
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'value' => '',
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'disabled' => 'disabled'
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);
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// select other choice if value is not a valid choice
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if( !isset($field['choices'][ $field['value'] ]) ) {
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unset($input['disabled']);
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$input['value'] = $field['value'];
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$field['value'] = 'other';
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}
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$field['choices']['other'] = '</label><input type="text" ' . acf_esc_attr($input) . ' /><label>';
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}
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// require choices
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if( !empty($field['choices']) ) {
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// select first choice if value is not a valid choice
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if( !isset($field['choices'][ $field['value'] ]) ) {
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$field['value'] = key($field['choices']);
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}
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// foreach choices
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foreach( $field['choices'] as $value => $label ) {
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// increase counter
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$i++;
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// vars
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$atts = array(
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'type' => 'radio',
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'id' => $field['id'],
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'name' => $field['name'],
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'value' => $value,
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);
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if( strval($value) === strval($field['value']) ) {
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$atts['checked'] = 'checked';
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$checked = true;
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}
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if( isset($field['disabled']) && acf_in_array($value, $field['disabled']) ) {
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$atts['disabled'] = 'disabled';
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}
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// each input ID is generated with the $key, however, the first input must not use $key so that it matches the field's label for attribute
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if( $i > 1 ) {
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$atts['id'] .= '-' . $value;
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}
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$e .= '<li><label><input ' . acf_esc_attr( $atts ) . '/>' . $label . '</label></li>';
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}
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}
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$e .= '</ul>';
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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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// choices
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acf_render_field_setting( $field, array(
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'label' => __('Choices','acf'),
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'instructions' => __('Enter each choice on a new line.','acf') . '<br /><br />' . __('For more control, you may specify both a value and label like this:','acf'). '<br /><br />' . __('red : Red','acf'),
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'type' => 'textarea',
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'name' => 'choices',
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));
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// other_choice
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acf_render_field_setting( $field, array(
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'label' => __('Other','acf'),
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'instructions' => '',
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'type' => 'true_false',
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'name' => 'other_choice',
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'message' => __("Add 'other' choice to allow for custom values", 'acf')
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));
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// save_other_choice
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acf_render_field_setting( $field, array(
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'label' => __('Save Other','acf'),
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'instructions' => '',
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'type' => 'true_false',
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'name' => 'save_other_choice',
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'message' => __("Save 'other' values to the field's choices", 'acf')
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));
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// default_value
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acf_render_field_setting( $field, 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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// layout
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acf_render_field_setting( $field, 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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* 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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// 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'][ $value ]) ) {
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// get ID if local
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if( !$field['ID'] ) {
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$field = acf_get_field( $field['key'], true );
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}
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// bail early if no ID
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if( !$field['ID'] ) {
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return $value;
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}
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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( $field ) {
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// translate
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$field['choices'] = acf_translate( $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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new acf_field_radio();
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endif;
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?>
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