ruby - Rails scaffold strange undefined_method error for specific table -

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i'm working on admin tool existing database , encountered strange problem when scaffolding particular table.

here schema of table using rake db:schema:dump:

create_table "locality", :force => true |t|     t.integer "version",             :limit => 8,                  :null => false     t.string  "truth_id",                                          :null => false     t.string  "truth_record_id",                                   :null => false     t.binary  "deleted",             :limit => 1,                  :null => false     t.string  "internal_code",                                     :null => false     t.string  "iso_code"     t.string  "materialized_path",                                 :null => false     t.string  "invariant_name",                                    :null => false     t.binary  "published",           :limit => 1,                  :null => false     t.float   "geo_point_latitude",               :default => 0.0     t.float   "geo_point_longitude",              :default => 0.0     t.string  "class",                                             :null => false     t.integer "hut_count",                        :default => 0     t.integer "hotel_count",                      :default => 0     t.string  "destination_url"   end   add_index "locality", ["truth_record_id"], :name => "truth_record_id", :unique => true

i used schema_to_scaffold gem create scaffold dumped schema: 

rails g scaffold locality version:integer truth_id:string truth_record_id:string   deleted:binary internal_code:string iso_code:string materialized_path:string    invariant_name:string published:binary geo_point_latitude:float    geo_point_longitude:float class:string hut_count:integer hotel_count:integer    destination_url:string

this workflow worked lot of other tables when accessing /localities or locality.all in rails console its:

irb(main):001:0> locality.all locality load (2.1ms)  select `locality`.* `locality`  nomethoderror: undefined method `attribute_method_matcher' "country":string

where "country":string come from? @ first thought model name 'locality' somehow reservers rails i18n stuff same problem happens when naming model 'bla'.

i'm using rails 3.2.13 , mysql database.

i believe column: class invalid. how have access column since class method of object in ruby?

i think causes mess. class column's value of loaded locality "country" right?


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