Add mysql2 for ci, and raise errors in product handler for failed cre…

…ate calls.

Gemfile

@@ -5,6 +5,7 @@ gem 'spree', github: 'spree/spree', branch: "master"
 gem 'coffee-rails', '~> 4.0.0'
 gem 'sass-rails', '~> 4.0.0'
 
+gem 'mysql2'
 gem 'pg'
 
 group :test do

lib/spree/wombat/handler/product_handler_base.rb

@@ -90,12 +90,12 @@ def add_taxon(parent, taxon_names, position = 0)
           if taxon
             parent.children << taxon
           else
-            taxon = parent.children.create(name: taxon_name, position: position)
+            taxon = parent.children.create!(name: taxon_name, position: position)
           end
           parent.save
           # store the taxon so we can assign it later
           @taxon_ids << taxon.id
-          add_taxon(taxon, taxon_names, position+1)
+          add_taxon(taxon, taxon_names, position + 1)
         end
 
         def process_images(variant, images)
@@ -125,7 +125,7 @@ def process_child_products(product, children)
             if variant
               variant.update_attributes(child_product)
             else
-              variant = product.variants.create({ product: product }.merge(child_product))
+              variant = product.variants.create!({ product: product }.merge(child_product))
             end
             process_images(variant, images)
           end