add nil contacts handling to helper + regression specs

app/helpers/application_helper.rb

@@ -10,7 +10,7 @@ def i18n_language_names
 
   def current_translations
     @translations ||= I18n.backend.send(:translations)
-    @translations[I18n.locale].with_indifferent_access
+    (@translations[I18n.locale] || {}).with_indifferent_access
   end
 
   def javascript_exists?(script)

app/helpers/concerns/contacts_helper.rb

@@ -18,16 +18,18 @@ module ContactsHelper
     end
 
     def contacts_list_for(object)
+      return [] if object.contacts.nil?
       CONTACTS_ICONS.select{|key, val| object.contacts.keys.include? key }.map{ |key, icon| {
         :key => key, :icon => icon, :value => object.contacts[key]
       }}
     end
 
     def contacts_fields_for(object)
+      contacts = object.contacts || {}
       CONTACTS_ICONS.map{ |key, icon| {
         :key   => key,
         :icon  => icon,
-        :value => object.contacts[key],
+        :value => contacts[key],
         :name  => "#{object.class.name.downcase}[contacts][#{key}]",
       }}
     end

spec/helpers/application_helper_spec.rb

@@ -104,6 +104,11 @@
     let(:user) { FactoryGirl.create :user, :contacts => {'address' => 'rua Bla', 'phone' => '12345'} }
 
     describe "#contacts_list_for" do
+      it 'returns an empty list for nil contacts' do
+        user.contacts = nil
+        expect(helper.contacts_list_for user).to eq []
+      end
+
       it 'selects only the icons forms existing contact keys' do
         expect(helper.contacts_list_for user).to eq([
           {:key => 'phone',   :icon => :phone, :value => "12345"},
@@ -117,6 +122,11 @@
         expect(helper.contacts_fields_for(user).size).to eq 10
       end
 
+      it "build fields even if contacts is nil" do
+        user.contacts = nil
+        expect(helper.contacts_fields_for(user).size).to eq 10
+      end
+
       it "each contact field has key, icon, value and name" do
         expect(helper.contacts_fields_for(user).first.keys).to eq [:key, :icon, :value, :name]
       end