Adding multiple items to WooCommerce cart at once
Thanks to @thatgerhard and dsgnwrks
I found a solution for support variations:
function woocommerce_maybe_add_multiple_products_to_cart() {
// Make sure WC is installed, and add-to-cart qauery arg exists, and contains at least one comma.
if ( ! class_exists( 'WC_Form_Handler' ) || empty( $_REQUEST['add-to-cart'] ) || false === strpos( $_REQUEST['add-to-cart'], ',' ) ) {
return;
}
remove_action( 'wp_loaded', array( 'WC_Form_Handler', 'add_to_cart_action' ), 20 );
$product_ids = explode( ',', $_REQUEST['add-to-cart'] );
$count = count( $product_ids );
$number = 0;
foreach ( $product_ids as $product_id ) {
if ( ++$number === $count ) {
// Ok, final item, let's send it back to woocommerce's add_to_cart_action method for handling.
$_REQUEST['add-to-cart'] = $product_id;
return WC_Form_Handler::add_to_cart_action();
}
$product_id = apply_filters( 'woocommerce_add_to_cart_product_id', absint( $product_id ) );
$was_added_to_cart = false;
$adding_to_cart = wc_get_product( $product_id );
if ( ! $adding_to_cart ) {
continue;
}
if ( $adding_to_cart->is_type( 'simple' ) ) {
// quantity applies to all products atm
$quantity = empty( $_REQUEST['quantity'] ) ? 1 : wc_stock_amount( $_REQUEST['quantity'] );
$passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', true, $product_id, $quantity );
if ( $passed_validation && false !== WC()->cart->add_to_cart( $product_id, $quantity ) ) {
wc_add_to_cart_message( array( $product_id => $quantity ), true );
}
} else {
$variation_id = empty( $_REQUEST['variation_id'] ) ? '' : absint( wp_unslash( $_REQUEST['variation_id'] ) );
$quantity = empty( $_REQUEST['quantity'] ) ? 1 : wc_stock_amount( wp_unslash( $_REQUEST['quantity'] ) ); // WPCS: sanitization ok.
$missing_attributes = array();
$variations = array();
$adding_to_cart = wc_get_product( $product_id );
if ( ! $adding_to_cart ) {
continue;
}
// If the $product_id was in fact a variation ID, update the variables.
if ( $adding_to_cart->is_type( 'variation' ) ) {
$variation_id = $product_id;
$product_id = $adding_to_cart->get_parent_id();
$adding_to_cart = wc_get_product( $product_id );
if ( ! $adding_to_cart ) {
continue;
}
}
// Gather posted attributes.
$posted_attributes = array();
foreach ( $adding_to_cart->get_attributes() as $attribute ) {
if ( ! $attribute['is_variation'] ) {
continue;
}
$attribute_key = 'attribute_' . sanitize_title( $attribute['name'] );
if ( isset( $_REQUEST[ $attribute_key ] ) ) {
if ( $attribute['is_taxonomy'] ) {
// Don't use wc_clean as it destroys sanitized characters.
$value = sanitize_title( wp_unslash( $_REQUEST[ $attribute_key ] ) );
} else {
$value = html_entity_decode( wc_clean( wp_unslash( $_REQUEST[ $attribute_key ] ) ), ENT_QUOTES, get_bloginfo( 'charset' ) ); // WPCS: sanitization ok.
}
$posted_attributes[ $attribute_key ] = $value;
}
}
// If no variation ID is set, attempt to get a variation ID from posted attributes.
if ( empty( $variation_id ) ) {
$data_store = WC_Data_Store::load( 'product' );
$variation_id = $data_store->find_matching_product_variation( $adding_to_cart, $posted_attributes );
}
// Do we have a variation ID?
if ( empty( $variation_id ) ) {
throw new Exception( __( 'Please choose product options…', 'woocommerce' ) );
}
// Check the data we have is valid.
$variation_data = wc_get_product_variation_attributes( $variation_id );
foreach ( $adding_to_cart->get_attributes() as $attribute ) {
if ( ! $attribute['is_variation'] ) {
continue;
}
// Get valid value from variation data.
$attribute_key = 'attribute_' . sanitize_title( $attribute['name'] );
$valid_value = isset( $variation_data[ $attribute_key ] ) ? $variation_data[ $attribute_key ]: '';
/**
* If the attribute value was posted, check if it's valid.
*
* If no attribute was posted, only error if the variation has an 'any' attribute which requires a value.
*/
if ( isset( $posted_attributes[ $attribute_key ] ) ) {
$value = $posted_attributes[ $attribute_key ];
// Allow if valid or show error.
if ( $valid_value === $value ) {
$variations[ $attribute_key ] = $value;
} elseif ( '' === $valid_value && in_array( $value, $attribute->get_slugs() ) ) {
// If valid values are empty, this is an 'any' variation so get all possible values.
$variations[ $attribute_key ] = $value;
} else {
throw new Exception( sprintf( __( 'Invalid value posted for %s', 'woocommerce' ), wc_attribute_label( $attribute['name'] ) ) );
}
} elseif ( '' === $valid_value ) {
$missing_attributes[] = wc_attribute_label( $attribute['name'] );
}
}
if ( ! empty( $missing_attributes ) ) {
throw new Exception( sprintf( _n( '%s is a required field', '%s are required fields', count( $missing_attributes ), 'woocommerce' ), wc_format_list_of_items( $missing_attributes ) ) );
}
$passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', true, $product_id, $quantity, $variation_id, $variations );
if ( $passed_validation && false !== WC()->cart->add_to_cart( $product_id, $quantity, $variation_id, $variations ) ) {
wc_add_to_cart_message( array( $product_id => $quantity ), true );
}
}
}
}
add_action( 'wp_loaded', 'woocommerce_maybe_add_multiple_products_to_cart', 15 );
Here I had forced $_REQUEST[ 'add-to-cart' ] to take the intended product id. Overwriting global variable doesn't sound good approach but it keeps DRY approach and also make all native function available to user.
add_action( 'wp_loaded', 'add_multiple_to_cart_action', 20 );
function add_multiple_to_cart_action() {
if ( ! isset( $_REQUEST['multiple-item-to-cart'] ) || false === strpos( wp_unslash( $_REQUEST['multiple-item-to-cart'] ), '|' ) ) { // phpcs:ignore WordPress.Security.NonceVerification.NoNonceVerification, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
return;
}
wc_nocache_headers();
$product_ids = apply_filters( 'woocommerce_add_to_cart_product_id', wp_unslash( $_REQUEST['multiple-item-to-cart'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.NoNonceVerification
$product_ids = explode( '|', $product_ids );
if( ! is_array( $product_ids ) ) return;
$product_ids = array_map( 'absint', $product_ids );
$was_added_to_cart = false;
$last_product_id = end($product_ids);
//stop re-direction
add_filter( 'woocommerce_add_to_cart_redirect', '__return_false' );
foreach ($product_ids as $index => $product_id ) {
$product_id = absint( $product_id );
if( empty( $product_id ) ) continue;
$_REQUEST['add-to-cart'] = $product_id;
if( $product_id === $last_product_id ) {
add_filter( 'option_woocommerce_cart_redirect_after_add', function() {
return 'yes';
} );
} else {
add_filter( 'option_woocommerce_cart_redirect_after_add', function() {
return 'no';
} );
}
WC_Form_Handler::add_to_cart_action();
}
}
Example:
https://your-domain/cart?multiple-item-to-cart=68|69 Thanks
I found the answer!
Simply add the following script to your theme's functions.php:
function woocommerce_maybe_add_multiple_products_to_cart() {
// Make sure WC is installed, and add-to-cart qauery arg exists, and contains at least one comma.
if ( ! class_exists( 'WC_Form_Handler' ) || empty( $_REQUEST['add-to-cart'] ) || false === strpos( $_REQUEST['add-to-cart'], ',' ) ) {
return;
}
// Remove WooCommerce's hook, as it's useless (doesn't handle multiple products).
remove_action( 'wp_loaded', array( 'WC_Form_Handler', 'add_to_cart_action' ), 20 );
$product_ids = explode( ',', $_REQUEST['add-to-cart'] );
$count = count( $product_ids );
$number = 0;
foreach ( $product_ids as $product_id ) {
if ( ++$number === $count ) {
// Ok, final item, let's send it back to woocommerce's add_to_cart_action method for handling.
$_REQUEST['add-to-cart'] = $product_id;
return WC_Form_Handler::add_to_cart_action();
}
$product_id = apply_filters( 'woocommerce_add_to_cart_product_id', absint( $product_id ) );
$was_added_to_cart = false;
$adding_to_cart = wc_get_product( $product_id );
if ( ! $adding_to_cart ) {
continue;
}
$add_to_cart_handler = apply_filters( 'woocommerce_add_to_cart_handler', $adding_to_cart->product_type, $adding_to_cart );
/*
* Sorry.. if you want non-simple products, you're on your own.
*
* Related: WooCommerce has set the following methods as private:
* WC_Form_Handler::add_to_cart_handler_variable(),
* WC_Form_Handler::add_to_cart_handler_grouped(),
* WC_Form_Handler::add_to_cart_handler_simple()
*
* Why you gotta be like that WooCommerce?
*/
if ( 'simple' !== $add_to_cart_handler ) {
continue;
}
// For now, quantity applies to all products.. This could be changed easily enough, but I didn't need this feature.
$quantity = empty( $_REQUEST['quantity'] ) ? 1 : wc_stock_amount( $_REQUEST['quantity'] );
$passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', true, $product_id, $quantity );
if ( $passed_validation && false !== WC()->cart->add_to_cart( $product_id, $quantity ) ) {
wc_add_to_cart_message( array( $product_id => $quantity ), true );
}
}
}
// Fire before the WC_Form_Handler::add_to_cart_action callback.
add_action( 'wp_loaded', 'woocommerce_maybe_add_multiple_products_to_cart', 15 );
And then you can simply use http://shop.com/shop/cart/?add-to-cart=3001,3282 to add multiple items at once. Put a comma between different IDs.
Thanks to dsgnwrks for the solution.
In case anyone else comes by looking for this function like I did. I updated the top comment's code allowing it to work with woocommerce 3.5.3
// adds support for multi add to cart for 3rd party cart plugin
function woocommerce_maybe_add_multiple_products_to_cart() {
// Make sure WC is installed, and add-to-cart qauery arg exists, and contains at least one comma.
if ( ! class_exists( 'WC_Form_Handler' ) || empty( $_REQUEST['add-to-cart'] ) || false === strpos( $_REQUEST['add-to-cart'], ',' ) ) {
return;
}
// Remove WooCommerce's hook, as it's useless (doesn't handle multiple products).
remove_action( 'wp_loaded', array( 'WC_Form_Handler', 'add_to_cart_action' ), 20 );
$product_ids = explode( ',', $_REQUEST['add-to-cart'] );
$count = count( $product_ids );
$number = 0;
foreach ( $product_ids as $product_id ) {
if ( ++$number === $count ) {
// Ok, final item, let's send it back to woocommerce's add_to_cart_action method for handling.
$_REQUEST['add-to-cart'] = $product_id;
return WC_Form_Handler::add_to_cart_action();
}
$product_id = apply_filters( 'woocommerce_add_to_cart_product_id', absint( $product_id ) );
$was_added_to_cart = false;
$adding_to_cart = wc_get_product( $product_id );
if ( ! $adding_to_cart ) {
continue;
}
// only works for simple atm
if ( $adding_to_cart->is_type( 'simple' ) ) {
// quantity applies to all products atm
$quantity = empty( $_REQUEST['quantity'] ) ? 1 : wc_stock_amount( $_REQUEST['quantity'] );
$passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', true, $product_id, $quantity );
if ( $passed_validation && false !== WC()->cart->add_to_cart( $product_id, $quantity ) ) {
wc_add_to_cart_message( array( $product_id => $quantity ), true );
}
}
}
}
add_action( 'wp_loaded', 'woocommerce_maybe_add_multiple_products_to_cart', 15 );