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bradt/url-coupons.js

Last active Aug 29, 2015
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WooCommerce URL Coupons
$( document ).ready( function() {
var cookie_name = 'dbrains-coupon';
var cookie_name_error = 'dbrains-coupon-error';
if ( 'undefined' === typeof $.cookie( cookie_name ) ) {
return;
}
var message = 'The coupon code ' + $.cookie( cookie_name ).toUpperCase() + ' has been successfully applied.';
var notice_class = 'dbrains-wc-coupons-notice';
if ( 'undefined' !== typeof $.cookie( cookie_name_error ) ) {
message = $.cookie( cookie_name_error );
notice_class += ' error';
}
var $coupon_notice = $( '<div></div>', {
'class': notice_class
} );
var $coupon_message = $( '<p></p>', {
'class': 'dbrains-wc-coupons-notice-message'
} );
$coupon_message.html( message );
$coupon_notice.prepend( $coupon_message )
$( 'body' ).prepend( $coupon_notice );
var coupon_height = $coupon_notice.outerHeight();
$coupon_notice
.css( 'margin-top', -1 * coupon_height )
.show()
.animate( { 'margin-top' : 0 }, 800 );
setTimeout( function() {
$coupon_notice
.animate( { 'margin-top' : -1 * coupon_height }, 800, function() {
$( this ).remove();
} );
}, 4000 );
// clear the cookies
$.removeCookie( cookie_name, { path: '/' } );
$.removeCookie( cookie_name_error, { path: '/' } );
} );
<?php
class DBrains_URL_Coupons {
protected $cookie_prefix = 'dbrains';
protected $cookie_expires_in;
protected $code;
protected $error_messsage;
function __construct() {
$this->cookie_expires_in = DAY_IN_SECONDS;
add_action( 'wp', array( $this, 'process_coupon' ), 1 );
//add_filter( 'woocommerce_coupons_enabled', array( $this, 'remove_coupon_input_from_checkout' ) );
}
/**
* Set the coupon code
*
* @param string $code
*/
protected function set_code( $code ) {
$this->code = strtolower( $code );
}
/**
* Get the name we are using for the cookie
*
* @return string
*/
protected function get_cookie_name() {
return $this->cookie_prefix . '-coupon';
}
/**
* Get the name we are using for the error flag cookie
*
* @return string
*/
protected function get_cookie_name_error() {
return $this->cookie_prefix . '-coupon-error';
}
/**
* Apply the coupon code to the WooCommerce cart
*
* @return bool
*/
protected function apply_coupon() {
$coupon = new WC_Coupon( $this->code );
// Since we're already displaying notices for adding the coupon,
// we don't want any of them showing up on the checkout
// so we save the notices and overwrite later
$notices_before = wc_get_notices();
if ( ! empty( $notices_before['error'] ) ) {
$errors_before_count = count( $notices_before['error'] );
}
else {
$errors_before_count = 0;
}
// If the cart is empty, the coupon code will succeed in being added but
// will then disappear when they add an item to their cart
$cart = WC()->cart->get_cart();
if ( empty ( $cart ) ) {
WC()->cart->add_to_cart( 21 );
}
$result = WC()->cart->add_discount( $coupon->code );
$notices = wc_get_notices();
WC()->session->set( 'wc_notices', $notices_before );
if ( $result ) {
return true;
}
$error_messages = array();
for ( $i = $errors_before_count; $i < count( $notices['error'] ); $i++ ) {
$error_messages[] = $notices['error'][$i];
}
return new WP_Error( 'apply_coupon_error', implode( ' ', $error_messages ) );
}
/**
* Clear the coupon cookies
*/
protected function clear_cookies() {
setcookie( $this->get_cookie_name(), '', time() - $this->cookie_expires_in, COOKIEPATH, COOKIE_DOMAIN );
setcookie( $this->get_cookie_name_error(), '', time() - $this->cookie_expires_in, COOKIEPATH, COOKIE_DOMAIN );
}
/**
* Handle the processing of the coupon and redirect of the page
*/
public function process_coupon() {
if ( empty( $_GET['coupon'] ) ) {
return;
}
if ( '{coupon}' == $_GET['coupon'] ) {
wp_redirect( remove_query_arg( 'coupon' ) );
exit;
}
$this->set_code( $_GET['coupon'] );
$result = $this->apply_coupon();
$this->clear_cookies();
setcookie( $this->get_cookie_name(), $this->code, time() + $this->cookie_expires_in, COOKIEPATH, COOKIE_DOMAIN );
if ( is_wp_error( $result ) ) {
setcookie( $this->get_cookie_name_error(), $result->get_error_message(), time() + $this->cookie_expires_in, COOKIEPATH, COOKIE_DOMAIN );
}
$redirect_url = remove_query_arg( 'coupon' );
wp_redirect( $redirect_url );
exit;
}
/**
* Remove the coupon input from the checkout page
*
* @param bool $enable_coupons
*
* @return bool
*/
public function remove_coupon_input_from_checkout( $enable_coupons ) {
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
return $enable_coupons;
}
global $post;
if ( isset( $post->ID ) && $post->ID === wc_get_page_id( 'checkout' ) ) {
// we want to use coupons but just hide them on the checkout page
return false;
}
return $enable_coupons;
}
}
new DBrains_URL_Coupons();
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