Allow :position => to be a symbol or string (as per the rake tasks)

lib/annotate/annotate_models.rb

@@ -130,7 +130,9 @@ module AnnotateModels
           old_content.sub!(/^# #{COMPAT_PREFIX}.*?\n(#.*\n)*\n/, '')
 
           # Write it back
-          new_content = options[:position] == 'before' ?  (info_block + old_content) : (old_content + "\n" + info_block)
+          new_content = options[:position].to_sym == :before ?
+            (info_block + old_content) :
+            (old_content + "\n" + info_block)
 
           File.open(file_name, "wb") { |f| f.puts new_content }
           true

spec/annotate/annotate_models_spec.rb

@@ -115,5 +115,24 @@ EOS
 
       File.read("user.rb").should == "#{schema_info}#{file_content}\n"
     end
+
+    it "should annotate before if given :position => :before" do
+      file_content = "class User < ActiveRecord::Base; end"
+
+      File.open("user.rb", "w") do |f|
+        f << file_content
+      end
+
+      klass = mock_class(:users, :id, [
+        mock_column(:id, :integer),
+        mock_column(:name, :string, :limit => 50)
+      ])
+
+      schema_info = AnnotateModels.get_schema_info(klass, "Schema Info")
+
+      AnnotateModels.annotate_one_file("user.rb", schema_info, {:position => :before})
+
+      File.read("user.rb").should == "#{schema_info}#{file_content}\n"
+    end
   end
 end