[IMP] change the module to allow the right calculation of the weight

based on the price. We think that this module work as it with
configuration where the VAT is included in the price of the products.

pos_price_to_weight/static/src/js/models.js

@@ -14,6 +14,17 @@ odoo.define('pos_price_to_weight.models', function (require) {
 
     models.PosModel = models.PosModel.extend({
     	
+    	initialize: function (session, attributes) {
+
+            var product_model = _.find(this.models, function(model){
+                return model.model === 'product.product';
+            });
+            product_model.fields.push('total_with_vat');
+
+            // Inheritance
+            return _super_PosModel.initialize.call(this, session, attributes);
+        },
+        
         scan_product: function(parsed_code) {
             if (! (parsed_code.type === 'price_to_weight')){
                 // Normal behaviour
@@ -28,7 +39,9 @@ odoo.define('pos_price_to_weight.models', function (require) {
             var quantity = 0;
             var price = parseFloat(parsed_code.value) || 0;
             if (price !== 0 && product.price !== 0){
-                quantity = price / product.price;
+            	// replace the initial line cause this only work for price with
+            	// vat include in the price in the pos.
+            	quantity = price / product.total_with_vat;
             }
             selectedOrder.add_product(product, {quantity:  quantity, merge: false});
             return true;