Rails Inflector Lookup

.camelize#=>"FooBarsId"
.classify#=>"FooBarsId"
.constantize#=>
wrong constant name foo_bars_id
.dasherize#=>"foo-bars-id"
.deconstantize#=>""
.demodulize#=>"foo_bars_id"
.foreign_key#=>"foo_bars_id_id"
.humanize#=>"Foo bars"
.ordinal#=>
undefined method
.ordinalize#=>
undefined method
.parameterize#=>"foo_bars_id"
.pluralize#=>"foo_bars_ids"
.safe_constantize#=>""
.singularize#=>"foo_bars_id"
.tableize#=>"foo_bars_ids"
.titleize#=>"Foo Bars"
.underscore#=>"foo_bars_id"
.upcase_first#=>"Foo_bars_id"