Extract to new remove_attr_accessible_from_model methods.

lib/attr_accessible2strong_params/converter.rb

@@ -11,13 +11,7 @@ def read_attr_accessible(filename)
       @model_class_name = m.parent.parent.children[0].children[1]
       aa_fields <<= m.each_node(:sym).collect {|n| n.children[0]}
     end
-    rewriter   = RemoveAttrAccessibleRewriter.new
-    no_aa_src = rewriter.rewrite(buffer,root_node)
-
-    no_aa_src_buffer = Parser::Source::Buffer.new('(string)')
-    no_aa_src_buffer.source = no_aa_src
-    no_aa_node = Parser::CurrentRuby.new(Astrolabe::Builder.new).parse(no_aa_src_buffer)
-    write_file_with_comments(filename, no_aa_node, comments)
+    write_file_with_comments(filename, remove_attr_accessible_from_model(buffer, root_node), comments)
     @model_fields = aa_fields.flatten
   end
 
@@ -44,4 +38,10 @@ def write_file_with_comments(filename, root_node, comments)
     end
     File.rename(temp_path, filename)
   end
+
+  def remove_attr_accessible_from_model(buffer, root_node)
+    no_aa_src_buffer = Parser::Source::Buffer.new('(string)')
+    no_aa_src_buffer.source = RemoveAttrAccessibleRewriter.new.rewrite(buffer,root_node)
+    Parser::CurrentRuby.new(Astrolabe::Builder.new).parse(no_aa_src_buffer)
+  end
 end