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<?php if ( ! class_exists( 'acf_field_checkbox' ) ) : class acf_field_checkbox extends acf_field { /** * This function will setup the field type data * * @type function * @date 5/03/2014 * @since 5.0.0 * * @param n/a * @return n/a */ function initialize() { // vars $this->name = 'checkbox'; $this->label = __( 'Checkbox', 'acf' ); $this->category = 'choice'; $this->description = __( 'A group of checkbox inputs that allow the user to select one, or multiple values that you specify.', 'acf' ); $this->preview_image = acf_get_url() . '/assets/images/field-type-previews/field-preview-checkbox.png'; $this->doc_url = acf_add_url_utm_tags( 'https://www.advancedcustomfields.com/resources/checkbox/', 'docs', 'field-type-selection' ); $this->defaults = array( 'layout' => 'vertical', 'choices' => array(), 'default_value' => '', 'allow_custom' => 0, 'save_custom' => 0, 'toggle' => 0, 'return_format' => 'value', 'custom_choice_button_text' => __( 'Add new choice', 'acf' ), ); } /** * Create the HTML interface for your field * * @param $field (array) the $field being rendered * * @type action * @since 3.6 * @date 23/01/13 * * @param $field (array) the $field being edited * @return n/a */ function render_field( $field ) { // reset vars $this->_values = array(); $this->_all_checked = true; // ensure array $field['value'] = acf_get_array( $field['value'] ); $field['choices'] = acf_get_array( $field['choices'] ); // hiden input acf_hidden_input( array( 'name' => $field['name'] ) ); // vars $li = ''; $ul = array( 'class' => 'acf-checkbox-list', ); // append to class $ul['class'] .= ' ' . ( $field['layout'] == 'horizontal' ? 'acf-hl' : 'acf-bl' ); $ul['class'] .= ' ' . $field['class']; // checkbox saves an array $field['name'] .= '[]'; // choices if ( ! empty( $field['choices'] ) ) { // choices $li .= $this->render_field_choices( $field ); // toggle if ( $field['toggle'] ) { $li = $this->render_field_toggle( $field ) . $li; } } // custom if ( $field['allow_custom'] ) { $li .= $this->render_field_custom( $field ); } // return echo '<ul ' . acf_esc_attrs( $ul ) . '>' . "\n" . $li . '</ul>' . "\n"; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- escaped by specific render methods above. } /** * description * * @type function * @date 15/7/17 * @since 5.6.0 * * @param $post_id (int) * @return $post_id (int) */ function render_field_choices( $field ) { // walk return $this->walk( $field['choices'], $field ); } /** * Validates values for the checkbox field * * @since 6.0.0 * * @param boolean $valid If the field is valid. * @param mixed $value The value to validate. * @param array $field The main field array. * @param string $input The input element's name attribute. * @return boolean */ public function validate_value( $valid, $value, $field, $input ) { if ( ! is_array( $value ) || empty( $field['allow_custom'] ) ) { return $valid; } foreach ( $value as $value ) { if ( empty( $value ) && $value !== '0' ) { return __( 'Checkbox custom values cannot be empty. Uncheck any empty values.', 'acf' ); } } return $valid; } /** * description * * @type function * @date 15/7/17 * @since 5.6.0 * * @param $post_id (int) * @return $post_id (int) */ function render_field_toggle( $field ) { // vars $atts = array( 'type' => 'checkbox', 'class' => 'acf-checkbox-toggle', 'label' => __( 'Toggle All', 'acf' ), ); // custom label if ( is_string( $field['toggle'] ) ) { $atts['label'] = $field['toggle']; } // checked if ( $this->_all_checked ) { $atts['checked'] = 'checked'; } // return return '<li>' . acf_get_checkbox_input( $atts ) . '</li>' . "\n"; } /** * description * * @type function * @date 15/7/17 * @since 5.6.0 * * @param $post_id (int) * @return $post_id (int) */ function render_field_custom( $field ) { // vars $html = ''; // loop foreach ( $field['value'] as $value ) { // ignore if already eixsts if ( isset( $field['choices'][ $value ] ) ) { continue; } // vars $esc_value = esc_attr( $value ); $text_input = array( 'name' => $field['name'], 'value' => $value, ); // bail early if choice already exists if ( in_array( $esc_value, $this->_values ) ) { continue; } // append $html .= '<li><input class="acf-checkbox-custom" type="checkbox" checked="checked" />' . acf_get_text_input( $text_input ) . '</li>' . "\n"; } // append button $html .= '<li><a href="#" class="button acf-add-checkbox">' . esc_attr( $field['custom_choice_button_text'] ) . '</a></li>' . "\n"; // return return $html; } function walk( $choices = array(), $args = array(), $depth = 0 ) { // bail early if no choices if ( empty( $choices ) ) { return ''; } // defaults $args = wp_parse_args( $args, array( 'id' => '', 'type' => 'checkbox', 'name' => '', 'value' => array(), 'disabled' => array(), ) ); // vars $html = ''; // sanitize values for 'selected' matching if ( $depth == 0 ) { $args['value'] = array_map( 'esc_attr', $args['value'] ); $args['disabled'] = array_map( 'esc_attr', $args['disabled'] ); } // loop foreach ( $choices as $value => $label ) { // open $html .= '<li>'; // optgroup if ( is_array( $label ) ) { $html .= '<ul>' . "\n"; $html .= $this->walk( $label, $args, $depth + 1 ); $html .= '</ul>'; // option } else { // vars $esc_value = esc_attr( $value ); $atts = array( 'id' => $args['id'] . '-' . str_replace( ' ', '-', $value ), 'type' => $args['type'], 'name' => $args['name'], 'value' => $value, 'label' => $label, ); // selected if ( in_array( $esc_value, $args['value'] ) ) { $atts['checked'] = 'checked'; } else { $this->_all_checked = false; } // disabled if ( in_array( $esc_value, $args['disabled'] ) ) { $atts['disabled'] = 'disabled'; } // store value added $this->_values[] = $esc_value; // append $html .= acf_get_checkbox_input( $atts ); } // close $html .= '</li>' . "\n"; } // return return $html; } /** * Create extra options for your field. This is rendered when editing a field. * The value of $field['name'] can be used (like bellow) to save extra data to the $field * * @type action * @since 3.6 * @date 23/01/13 * * @param $field - an array holding all the field's data */ function render_field_settings( $field ) { // Encode choices (convert from array). $field['choices'] = acf_encode_choices( $field['choices'] ); $field['default_value'] = acf_encode_choices( $field['default_value'], false ); acf_render_field_setting( $field, array( 'label' => __( 'Choices', 'acf' ), '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>', 'type' => 'textarea', 'name' => 'choices', ) ); acf_render_field_setting( $field, array( 'label' => __( 'Default Value', 'acf' ), 'instructions' => __( 'Enter each default value on a new line', 'acf' ), 'type' => 'textarea', 'name' => 'default_value', ) ); acf_render_field_setting( $field, array( 'label' => __( 'Return Value', 'acf' ), 'instructions' => __( 'Specify the returned value on front end', 'acf' ), 'type' => 'radio', 'name' => 'return_format', 'layout' => 'horizontal', 'choices' => array( 'value' => __( 'Value', 'acf' ), 'label' => __( 'Label', 'acf' ), 'array' => __( 'Both (Array)', 'acf' ), ), ) ); } /** * Renders the field settings used in the "Validation" tab. * * @since 6.0 * * @param array $field The field settings array. * @return void */ function render_field_validation_settings( $field ) { acf_render_field_setting( $field, array( 'label' => __( 'Allow Custom Values', 'acf' ), 'name' => 'allow_custom', 'type' => 'true_false', 'ui' => 1, 'instructions' => __( "Allow 'custom' values to be added", 'acf' ), ) ); acf_render_field_setting( $field, array( 'label' => __( 'Save Custom Values', 'acf' ), 'name' => 'save_custom', 'type' => 'true_false', 'ui' => 1, 'instructions' => __( "Save 'custom' values to the field's choices", 'acf' ), 'conditions' => array( 'field' => 'allow_custom', 'operator' => '==', 'value' => 1, ), ) ); } /** * Renders the field settings used in the "Presentation" tab. * * @since 6.0 * * @param array $field The field settings array. * @return void */ function render_field_presentation_settings( $field ) { acf_render_field_setting( $field, array( 'label' => __( 'Layout', 'acf' ), 'instructions' => '', 'type' => 'radio', 'name' => 'layout', 'layout' => 'horizontal', 'choices' => array( 'vertical' => __( 'Vertical', 'acf' ), 'horizontal' => __( 'Horizontal', 'acf' ), ), ) ); acf_render_field_setting( $field, array( 'label' => __( 'Add Toggle All', 'acf' ), 'instructions' => __( 'Prepend an extra checkbox to toggle all choices', 'acf' ), 'name' => 'toggle', 'type' => 'true_false', 'ui' => 1, ) ); } /** * This filter is appied to the $field before it is saved to the database * * @type filter * @since 3.6 * @date 23/01/13 * * @param $field - the field array holding all the field options * @param $post_id - the field group ID (post_type = acf) * * @return $field - the modified field */ function update_field( $field ) { // Decode choices (convert to array). $field['choices'] = acf_decode_choices( $field['choices'] ); $field['default_value'] = acf_decode_choices( $field['default_value'], true ); return $field; } /** * This filter is appied to the $value before it is updated in the db * * @type filter * @since 3.6 * @date 23/01/13 * * @param $value - the value which will be saved in the database * @param $post_id - the post_id of which the value will be saved * @param $field - the field array holding all the field options * * @return $value - the modified value */ function update_value( $value, $post_id, $field ) { // bail early if is empty if ( empty( $value ) ) { return $value; } // select -> update_value() $value = acf_get_field_type( 'select' )->update_value( $value, $post_id, $field ); // save_other_choice if ( $field['save_custom'] ) { // get raw $field (may have been changed via repeater field) // if field is local, it won't have an ID $selector = $field['ID'] ? $field['ID'] : $field['key']; $field = acf_get_field( $selector ); if ( ! $field ) { return false; } // bail early if no ID (JSON only) if ( ! $field['ID'] ) { return $value; } // loop foreach ( $value as $v ) { // ignore if already eixsts if ( isset( $field['choices'][ $v ] ) ) { continue; } // unslash (fixes serialize single quote issue) $v = wp_unslash( $v ); // sanitize (remove tags) $v = sanitize_text_field( $v ); // append $field['choices'][ $v ] = $v; } // save acf_update_field( $field ); } // return return $value; } /** * 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 ) { return acf_get_field_type( 'select' )->translate_field( $field ); } /** * 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 ) { // Bail early if is empty. if ( acf_is_empty( $value ) ) { return array(); } // Always convert to array of items. $value = acf_array( $value ); // Return. return acf_get_field_type( 'select' )->format_value( $value, $post_id, $field ); } /** * Return the schema array for the REST API. * * @param array $field * @return array */ public function get_rest_schema( array $field ) { $schema = array( 'type' => array( 'integer', 'string', 'array', 'null' ), 'required' => isset( $field['required'] ) && $field['required'], 'items' => array( 'type' => array( 'string', 'integer' ), ), ); if ( isset( $field['default_value'] ) && '' !== $field['default_value'] ) { $schema['default'] = $field['default_value']; } // If we allow custom values, nothing else to do here. if ( ! empty( $field['allow_custom'] ) ) { return $schema; } $schema['items']['enum'] = acf_get_field_type( 'select' )->format_rest_choices( $field['choices'] ); return $schema; } } // initialize acf_register_field_type( 'acf_field_checkbox' ); endif; // class_exists check
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