Coupon on checkout. Closes #379.

admin/woocommerce-admin-settings.php

@@ -106,6 +106,14 @@ $woocommerce_settings['general'] = apply_filters('woocommerce_general_settings',
 		'type' 		=> 'checkbox',
 		'checkboxgroup'		=> ''
 	),
+
+	array(  
+		'desc' 		=> __( 'Enable coupon form on checkout', 'woothemes' ),
+		'id' 		=> 'woocommerce_enable_coupon_form_on_checkout',
+		'std' 		=> 'no',
+		'type' 		=> 'checkbox',
+		'checkboxgroup'		=> ''
+	),
 	
 	array(  
 		'desc' 		=> __( '"Ship to same address option" checked by default', 'woothemes' ),

assets/js/woocommerce.js

@@ -490,7 +490,7 @@ jQuery(document).ready(function($) {
 		
 		}
 			
-		$('p.password, form.login, div.shipping_address').hide();
+		$('p.password, form.login, form.checkout_coupon, div.shipping_address').hide();
 		
 		$('input.show_password').change(function(){
 			$('p.password').slideToggle();
@@ -501,6 +501,11 @@ jQuery(document).ready(function($) {
 			return false;
 		});
 		
+		$('a.showcoupon').click(function(){
+			$('form.checkout_coupon').slideToggle();
+			return false;
+		});
+		
 		$('#shiptobilling input').change(function(){
 			$('div.shipping_address').hide();
 			if (!$(this).is(':checked')) {

classes/checkout.class.php

@@ -255,7 +255,7 @@ class woocommerce_checkout {
 
 		do_action('woocommerce_before_checkout_process');
 		
-		if (isset($_POST) && $_POST && !isset($_POST['login'])) :
+		if (isset($_POST) && $_POST && !isset($_POST['login']) && !isset($_POST['coupon_code'])) :
 
 			$woocommerce->verify_nonce('process_checkout');
 

readme.txt

@@ -97,6 +97,7 @@ Yes you can! Join in on our GitHub repository :) https://github.com/woothemes/wo
 * Option to hide cart widget if the cart is empty
 * Category widget - order by option
 * Option to re-order shipping methods
+* Coupon entry form on checkout (optional)
 
 = 1.3.2.1 - 15/12/2011 = 
 * Category/Ordering fix

templates/checkout/coupon-form.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * Checkout Coupon Form
+ */
+if (get_option('woocommerce_enable_coupon_form_on_checkout')=="no") return;
+
+$info_message = apply_filters('woocommerce_checkout_coupon_message', __('Have a coupon?', 'woothemes'));
+?>
+
+<p class="info"><?php echo $info_message; ?> <a href="#" class="showcoupon"><?php _e('Click here to enter your code', 'woothemes'); ?></a></p>
+
+<form class="checkout_coupon" method="post">
+
+	<p class="form-row form-row-first">
+		<input name="coupon_code" class="input-text" placeholder="<?php _e('Coupon code', 'woothemes'); ?>" id="coupon_code" value="" />
+	</p>
+
+	<p class="form-row form-row-last">
+		<input type="submit" class="button" name="apply_coupon" value="<?php _e('Apply Coupon', 'woothemes'); ?>" />
+	</p>
+	
+	<div class="clear"></div>
+</form>

templates/checkout/form.php

@@ -1,6 +1,8 @@
-<?php do_action('woocommerce_before_checkout_form');
+<?php global $woocommerce; ?>
 
-global $woocommerce;
+<?php $woocommerce->show_messages(); ?>
+
+<?php do_action('woocommerce_before_checkout_form');
 
 // If checkout registration is disabled and not logged in, the user cannot checkout
 if (get_option('woocommerce_enable_signup_and_login_from_checkout')=="no" && get_option('woocommerce_enable_guest_checkout')=="no" && !is_user_logged_in()) :

templates/shop/login-form.php

@@ -24,4 +24,6 @@ if (is_user_logged_in()) return;
 		<input type="submit" class="button" name="login" value="<?php _e('Login', 'woothemes'); ?>" />
 		<a class="lost_password" href="<?php echo esc_url( wp_lostpassword_url( home_url() ) ); ?>"><?php _e('Lost Password?', 'woothemes'); ?></a>
 	</p>
+	
+	<div class="clear"></div>
 </form>

woocommerce-functions.php

@@ -421,6 +421,25 @@ function woocommerce_process_login() {
 	endif;	
 }
 
+/**
+ * Process the coupon form on the checkout
+ **/
+function woocommerce_process_coupon_form() {
+	global $woocommerce;
+	
+	if (isset($_POST['coupon_code']) && $_POST['coupon_code']) :
+	
+		$coupon_code = stripslashes(trim($_POST['coupon_code']));
+		$woocommerce->cart->add_discount($coupon_code);
+		
+		if ( wp_get_referer() ) :
+			wp_safe_redirect( wp_get_referer() );
+			exit;
+		endif;
+	
+	endif;	
+}
+
 /**
  * Process the registration form
  **/

woocommerce-hooks.php

@@ -80,6 +80,7 @@ add_action( 'woocommerce_product_tab_panels', 'woocommerce_product_reviews_panel
 
 /* Checkout */
 add_action( 'woocommerce_before_checkout_form', 'woocommerce_checkout_login_form', 10 );
+add_action( 'woocommerce_before_checkout_form', 'woocommerce_checkout_coupon_form', 10 );
 add_action( 'woocommerce_checkout_order_review', 'woocommerce_order_review', 10 );
 
 /* Cart */
@@ -119,6 +120,7 @@ add_action( 'init', 'woocommerce_add_to_cart_action' );
 
 /* Login and Registration */
 add_action( 'init', 'woocommerce_process_login' );
+add_action( 'init', 'woocommerce_process_coupon_form' );
 add_action( 'init', 'woocommerce_process_registration' );
 
 /* Product Downloads */

woocommerce-template.php

@@ -431,6 +431,15 @@ if (!function_exists('woocommerce_order_review')) {
 	}
 }
 
+/**
+ * Coupon form for checkout
+ **/
+if (!function_exists('woocommerce_checkout_coupon_form')) {
+	function woocommerce_checkout_coupon_form() {
+		woocommerce_get_template('checkout/coupon-form.php', false);
+	}
+}
+
 /**
  * display product sub categories as thumbnails
  **/