FREESHIPPING

admin/writepanels/writepanel-coupon_data.php

@@ -38,6 +38,9 @@ function woocommerce_coupon_data_meta_box($post) {
 			// Apply before tax
 			woocommerce_wp_checkbox( array( 'id' => 'apply_before_tax', 'label' => __('Apply coupon before tax?', 'woothemes'), 'description' => __('Check this box if the coupon should be applied before calculating a product\'s tax', 'woothemes') ) );
 			
+			// Free Shipping
+			woocommerce_wp_checkbox( array( 'id' => 'free_shipping', 'label' => __('Enable free shipping', 'woothemes'), 'description' => sprintf(__('Check this box if the coupon enables free shipping (see <a href="%s">Free Shipping</a>)', 'woothemes'), admin_url('admin.php?page=woocommerce&tab=shipping_methods&subtab=shipping-free_shipping')) ) );
+			
 			// Product ids
 			woocommerce_wp_text_input( array( 'id' => 'product_ids', 'label' => __('Product IDs', 'woothemes'), 'placeholder' => __('N/A', 'woothemes'), 'description' => __('(optional) Comma separate IDs which need to be in the cart to use this coupon or, for "Product Discounts", which products are discounted.', 'woothemes') ) );
 			
@@ -78,6 +81,7 @@ function woocommerce_process_shop_coupon_meta( $post_id, $post ) {
 		$individual_use = isset($_POST['individual_use']) ? 'yes' : 'no';
 		$expiry_date 	= strip_tags(stripslashes( $_POST['expiry_date'] ));
 		$apply_before_tax = isset($_POST['apply_before_tax']) ? 'yes' : 'no';
+		$free_shipping = isset($_POST['free_shipping']) ? 'yes' : 'no';
 	
 	// Save
 		update_post_meta( $post_id, 'discount_type', $type );
@@ -88,6 +92,7 @@ function woocommerce_process_shop_coupon_meta( $post_id, $post ) {
 		update_post_meta( $post_id, 'usage_limit', $usage_limit );
 		update_post_meta( $post_id, 'expiry_date', $expiry_date );
 		update_post_meta( $post_id, 'apply_before_tax', $apply_before_tax );
+		update_post_meta( $post_id, 'free_shipping', $free_shipping );
 		
 		do_action('woocommerce_coupon_options');
 	

classes/coupons.class.php

@@ -21,6 +21,7 @@ class woocommerce_coupon {
 	var $usage_count;
 	var $expiry_date;
 	var $apply_before_tax;
+	var $free_shipping;
 	
 	/** get coupon with $code */
 	function woocommerce_coupon( $code ) {
@@ -41,6 +42,7 @@ class woocommerce_coupon {
 			$this->usage_count 			= (int) get_post_meta($coupon->ID, 'usage_count', true);
 			$this->expiry_date 			= ($expires = get_post_meta($coupon->ID, 'expiry_date', true)) ? strtotime($expires) : '';
 			$this->apply_before_tax 	= get_post_meta($coupon->ID, 'apply_before_tax', true);
+			$this->free_shipping 		= get_post_meta($coupon->ID, 'free_shipping', true);
 			
 			return true;
 			
@@ -54,6 +56,10 @@ class woocommerce_coupon {
 		if ($this->apply_before_tax=='yes') return true; else return false;
 	}
 	
+	function enable_free_shipping() {
+		if ($this->free_shipping=='yes') return true; else return false;
+	}
+	
 	/** Increase usage count */
 	function inc_usage_count() {
 		$this->usage_count++;

classes/shipping/shipping-free_shipping.php

@@ -27,6 +27,7 @@ class free_shipping extends woocommerce_shipping_method {
 		$this->min_amount 	= $this->settings['min_amount'];
 		$this->availability = $this->settings['availability'];
 		$this->countries 	= $this->settings['countries'];
+		$this->requires_coupon 	= $this->settings['requires_coupon'];
 		
 		// Actions
 		add_action('woocommerce_update_options_shipping_methods', array(&$this, 'process_admin_options'));
@@ -57,6 +58,13 @@ class free_shipping extends woocommerce_shipping_method {
 							'description' 	=> __('Users will need to spend this amount to get free shipping. Leave blank to disable.', 'woothemes'),
 							'default' 		=> ''
 						),
+			'requires_coupon' => array(
+							'title' 		=> __( 'Coupon', 'woothemes' ), 
+							'type' 			=> 'checkbox', 
+							'label' 		=> __( 'Free shipping requires a free shipping coupon', 'woothemes' ), 
+							'description' 	=> __('Users will need to enter a valid free shipping coupon code to use this method.', 'woothemes'),
+							'default' 		=> 'no'
+						),
 			'availability' => array(
 							'title' 		=> __( 'Method availability', 'woothemes' ), 
 							'type' 			=> 'select', 
@@ -100,6 +108,45 @@ class free_shipping extends woocommerce_shipping_method {
     	<?php
     } // End admin_options()
     
+
+    function is_available() {
+    	global $woocommerce;
+    	
+    	if ($this->enabled=="no") return false;
+    	
+		if (isset($woocommerce->cart->cart_contents_total) && isset($this->min_amount) && $this->min_amount && $this->min_amount > $woocommerce->cart->cart_contents_total) return false;
+		
+		$ship_to_countries = '';
+		
+		if ($this->availability == 'specific') :
+			$ship_to_countries = $this->countries;
+		else :
+			if (get_option('woocommerce_allowed_countries')=='specific') :
+				$ship_to_countries = get_option('woocommerce_specific_allowed_countries');
+			endif;
+		endif; 
+		
+		if (is_array($ship_to_countries)) :
+			if (!in_array($woocommerce->customer->get_shipping_country(), $ship_to_countries)) return false;
+		endif;
+		
+		if ($this->requires_coupon=="yes") :
+		
+			if ($woocommerce->cart->applied_coupons) : foreach ($woocommerce->cart->applied_coupons as $code) :
+				$coupon = &new woocommerce_coupon( $code );
+				
+				if ( $coupon->enable_free_shipping() ) :
+					return true;
+				endif;
+				
+			endforeach; endif;
+			
+			return false;
+			
+		endif;
+		
+		return true;
+    } 
     
     function calculate_shipping() {
 		$this->shipping_total 	= 0;

readme.txt

@@ -112,6 +112,7 @@ Yes you can! Join in on our GitHub repository :) https://github.com/woothemes/wo
 * Added dimensions to individual variations
 * Added settings API to be used by Shipping Methods and Payment Gateways
 * Free shipping/Flat rate uses setting API
+* Free shipping coupons
 
 = 1.2.4 - 18/11/2011 =
 * More sale price logic fixes for variations. Now correctly compares variation's prices.