Rails Inflector Lookup

.camelize#=>"FooBarId"
.classify#=>"FooBarId"
.constantize#=>
wrong constant name foo_bar_id
.dasherize#=>"foo-bar-id"
.deconstantize#=>""
.demodulize#=>"foo_bar_id"
.foreign_key#=>"foo_bar_id_id"
.humanize#=>"Foo bar"
.ordinal#=>
undefined method
.ordinalize#=>
undefined method
.parameterize#=>"foo_bar_id"
.pluralize#=>"foo_bar_ids"
.safe_constantize#=>""
.singularize#=>"foo_bar_id"
.tableize#=>"foo_bar_ids"
.titleize#=>"Foo Bar"
.underscore#=>"foo_bar_id"
.upcase_first#=>"Foo_bar_id"