Fixed issue where block is not called on the very first invocation of a find_or_create_by_ automatic finder.

[#1224 state:committed]

activerecord/lib/active_record/base.rb

@@ -1764,7 +1764,7 @@ def undecorated_table_name(class_name = base_class.name)
         #
         # Each dynamic finder or initializer/creator is also defined in the class after it is first invoked, so that future
         # attempts to use it do not run through method_missing.
-        def method_missing(method_id, *arguments)
+        def method_missing(method_id, *arguments, &block)
           if match = DynamicFinderMatch.match(method_id)
             attribute_names = match.attribute_names
             super unless all_attributes_exists?(attribute_names)
@@ -1819,7 +1819,7 @@ def self.#{method_id}(*args)
                   end
                 end
               }, __FILE__, __LINE__
-              send(method_id, *arguments)
+              send(method_id, *arguments, &block)
             end
           else
             super

activerecord/test/cases/finder_test.rb

@@ -846,6 +846,17 @@ def test_find_or_create_should_set_protected_attributes_if_given_as_block
     assert !c.new_record?
   end
 
+  def test_find_or_create_should_work_with_block_on_first_call
+	  class << Company
+		undef_method(:find_or_create_by_name) if method_defined?(:find_or_create_by_name)
+	  end
+    c = Company.find_or_create_by_name(:name => "Fortune 1000") { |f| f.rating = 1000 }
+    assert_equal "Fortune 1000", c.name
+    assert_equal 1000.to_f, c.rating.to_f
+    assert c.valid?
+    assert !c.new_record?
+  end
+
   def test_dynamic_find_or_initialize_from_one_attribute_caches_method
     class << Company; self; end.send(:remove_method, :find_or_initialize_by_name) if Company.public_methods.any? { |m| m.to_s == 'find_or_initialize_by_name' }
     assert !Company.public_methods.any? { |m| m.to_s == 'find_or_initialize_by_name' }