WooCommerce Custom Fields Front End

woocommerce-custom-fields-front-end.php

<?php
/**
 * Plugin Name: 	WooCommerce Custom Product Fields Front End
 * Plugin URI:		http://jeroensormani.com
 * Description:		A simple demo plugin on how to add a custom product fields on the front end.
 */


/**
 * Output custom WooCommerce fields.
 */
function output_custom_woocommerce_fields() {

	$allow_personal_message = get_post_meta( get_the_ID(), '_allow_personal_message', true );
	$gift_card_valid        = get_post_meta( get_the_ID(), '_valid_for_days', true );
	$gift_card_redeemable   = get_post_meta( get_the_ID(), '_redeem_in_stores', true );

	?><div class='custom_woocommerce_fields'><?php

		if ( 'yes' === $allow_personal_message ) :
			?><p>
				<label><strong><?php _e( 'Personal message', 'woocommerce' ); ?></strong>&nbsp;<em><small><?php _e( '(optional)', 'woocommerce' ); ?></small></em>
					<textarea name='personal_message' id='gift-card-personal-message' rows='2' cols='40'></textarea>
				</label>
			</p><?php
		endif;

		?><p class='gift-card-validity'>
			<strong><?php _e( 'Gift card validity', 'woocommerce' ); ?></strong><br/><?php
			echo sprintf( __( 'This gift card is valid for %d days', 'woocommerce' ), absint( $gift_card_valid ) );
		?></p><?php

		?><p class='gift-card-redeemable'>
			<strong><?php _e( 'Redeemable in stores in', 'woocommerce' ); ?></strong><br/><?php
			foreach ( $gift_card_redeemable as $store ) :
				switch( $store ) :
					case 'AL' :
						_e( 'Alabama', 'woocommerce' );
						break;

					case 'NY' :
						_e( 'New York', 'woocommerce' );
						break;

					case 'TX' :
						_e( 'Texas', 'woocommerce' );
						break;

					case 'WY' :
						_e( 'Wyoming', 'woocommerce' );
						break;
				endswitch;

				// Add a ', ' if its not the last line
				echo ( $store != end( $gift_card_redeemable ) ) ? ', ' : '';

			endforeach;
		?></p><?php

	?></div><?php

}
add_action( 'woocommerce_before_add_to_cart_button', 'output_custom_woocommerce_fields', 15 );


/**
 * Add cart item meta.
 */
function woocommerce_custom_fields_add_cart_item_meta( $cart_item_data, $product_id, $variation_id ) {

	if ( isset( $_POST['personal_message'] ) ) :
		$cart_item_data['personal_message'] = sanitize_text_field( $_POST['personal_message'] );
	endif;

	$cart_item_data['gift_card_validity'] = absint( get_post_meta( $product_id, '_valid_for_days', true ) );
	$cart_item_data['redeem_in_stores']   = get_post_meta( $product_id, '_redeem_in_stores', true );

	return $cart_item_data;

}
add_filter( 'woocommerce_add_cart_item_data', 'woocommerce_custom_fields_add_cart_item_meta', 10, 3 );


/**
 * Re-add the custom fields when getting the data via the session.
 */
function woocommerce_custom_fields_re_add_item_data_from_session( $cart_item_data, $values, $key ) {

	if ( isset( $values['personal_message'] ) ) :
		$cart_item_data['personal_message'] = $values['personal_message'];
	endif;

	if ( isset( $values['gift_card_validity'] ) ) :
		$cart_item_data['gift_card_validity'] = $values['gift_card_validity'];
	endif;

	if ( isset( $values['redeem_in_stores'] ) ) :
		$cart_item_data['redeem_in_stores'] = $values['redeem_in_stores'];
	endif;

	return $cart_item;

}
add_filter( 'woocommerce_get_cart_item_from_session', 'woocommerce_custom_fields_re_add_item_data_from_session', 10, 3 );


/**
 * Display custom fields in the cart
 */
function woocommerce_custom_fields_display_meta_in_cart( $meta, $cart_item ) {

	if ( isset( $cart_item['personal_message'] ) ) :
		$meta[] = array(
			'name' 	=> __( 'Personal message', 'woocommerce' ),
			'value' => $cart_item['personal_message'],
		);
	endif;

	if ( isset( $cart_item['gift_card_validity'] ) ) :
		$meta[] = array(
			'name' 	=> __( 'Gift card validity', 'woocommerce' ),
			'value' => $cart_item['gift_card_validity'] . ' ' . __( 'days', 'woocommerce' ),
		);
	endif;

	if ( isset( $cart_item['redeem_in_stores'] ) ) :
		$meta[] = array(
			'name' 	=> __( 'Redeemable in stores in', 'woocommerce' ),
			'value' => implode( ', ', $cart_item['redeem_in_stores'] ),
		);
	endif;

	return $meta;

}
add_filter( 'woocommerce_get_item_data', 'woocommerce_custom_fields_display_meta_in_cart', 10, 2 );


/**
 * Save cart item in the order.
 */
function woocommerce_custom_fields_add_order_item_meta( $item_id, $values, $cart_item_key ) {
error_log( print_r( $values, 1 ) );
	if ( isset( $values['personal_message'] ) ) :
		wc_add_order_item_meta( $item_id, '_personal_message', $values['personal_message'] );
	endif;

	if ( isset( $values['gift_card_validity'] ) ) :
		wc_add_order_item_meta( $item_id, '_valid_for_days', $values['gift_card_validity'] );
	endif;

	if ( isset( $values['redeem_in_stores'] ) ) :
		// Save a plain text as arrays are not displayed
		wc_add_order_item_meta( $item_id, '_redeem_in_stores', implode( ', ', $values['redeem_in_stores'] ) );
	endif;

}
add_action( 'woocommerce_add_order_item_meta', 'woocommerce_custom_fields_add_order_item_meta', 10, 3 );