WC_Checkout::validate_checkout │ protected │ WC 3.0.0

Validates that the checkout has enough info to proceed.

Method of the class: WC_Checkout{}

Returns

null. Nothing (null).

Usage

// protected - for code of main (parent) or child class
$result = $this->validate_checkout( $data, $errors );

$data(array) (required) (passed by reference — &)

An array of posted data.

$errors(WP_Error) (required) (passed by reference — &)

Validation errors.

Changelog

WC_Checkout::validate_checkout() WC Checkout::validate checkout code ^{WC 10.6.2}

protected function validate_checkout( &$data, &$errors ) {
	$this->validate_posted_data( $data, $errors );
	$this->check_cart_items();

	// phpcs:ignore WordPress.Security.NonceVerification.Missing
	if ( empty( $data['woocommerce_checkout_update_totals'] ) && empty( $data['terms'] ) && ! empty( $data['terms-field'] ) ) {
		$errors->add( 'terms', __( 'Please read and accept the terms and conditions to proceed with your order.', 'woocommerce' ), array( 'id' => 'terms' ) );
	}

	if ( WC()->cart->needs_shipping() ) {
		$shipping_country = isset( $data['shipping_country'] ) ? $data['shipping_country'] : WC()->customer->get_shipping_country();

		if ( empty( $shipping_country ) && ! $errors->get_error_data( 'billing_country_required' ) ) {
			$errors->add( 'shipping', __( 'Please enter an address to continue.', 'woocommerce' ) );
		} elseif ( ! in_array( $shipping_country, array_keys( WC()->countries->get_shipping_countries() ), true ) ) {
			if ( WC()->countries->country_exists( $shipping_country ) ) {
				/* translators: %s: shipping location (prefix e.g. 'to' + ISO 3166-1 alpha-2 country code) */
				$errors->add( 'shipping', sprintf( __( 'Unfortunately <strong>we do not ship %s</strong>. Please enter an alternative shipping address.', 'woocommerce' ), WC()->countries->shipping_to_prefix( $shipping_country ) . ' ' . $shipping_country ) );
			}
		} else {
			$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );

			foreach ( WC()->shipping()->get_packages() as $i => $package ) {
				if ( ! isset( $chosen_shipping_methods[ $i ], $package['rates'][ $chosen_shipping_methods[ $i ] ] ) ) {
					$errors->add( 'shipping', __( 'No shipping method has been selected. Please double check your address, or contact us if you need any help.', 'woocommerce' ) );
				}
			}
		}
	}

	if ( WC()->cart->needs_payment() ) {
		$available_gateways = WC()->payment_gateways->get_available_payment_gateways();

		if ( ! isset( $available_gateways[ $data['payment_method'] ] ) ) {
			$errors->add( 'payment', __( 'Invalid payment method.', 'woocommerce' ) );
		} else {
			$available_gateways[ $data['payment_method'] ]->validate_fields();
		}
	}

	do_action( 'woocommerce_after_checkout_validation', $data, $errors );
}