Implemented attribute_changed_in_place? on models so validates_numericality_of validation will work

lib/her/model/attributes.rb

@@ -132,6 +132,12 @@ def get_attribute(attribute_name)
       end
       alias attribute get_attribute
 
+      # Return `true` if the attribute was changed since last read.
+      # This allows validates_numericality_of to work properly.
+      def attribute_changed_in_place?(attribute_name)
+        !changes[attribute_name].nil?
+      end
+
       # Return the value of the model `primary_key` attribute
       def id
         @attributes[self.class.primary_key]

spec/model/attributes_spec.rb

@@ -65,6 +65,12 @@
       @new_user.get_attribute(:unknown_method_for_a_user).should be_nil
       @new_user.get_attribute(:'life-span').should == '3 years'
     end
+
+    it "handles attribute_changed_in_place?" do
+      @new_user = Foo::User.new
+      @new_user.fullname = 'Schmoo'
+      @new_user.attribute_changed_in_place?(:fullname).should be_truthy
+    end
   end
 
 

spec/model/validations_spec.rb

@@ -5,9 +5,10 @@
   context "validating attributes" do
     before do
       spawn_model "Foo::User" do
-        attributes :fullname, :email
+        attributes :fullname, :email, :age
         validates_presence_of :fullname
         validates_presence_of :email
+        validates_numericality_of :age
       end
     end
 
@@ -18,6 +19,7 @@
       user.errors.full_messages.should include("Email can't be blank")
       user.fullname = "Tobias Fünke"
       user.email = "[email protected]"
+      user.age = 35
       user.should be_valid
     end
   end