ruby on rails - Share enum declaration values with multiple attributes -

i want have class several attributes saves weekdays numeric values.

summary_weekday    :integer collection_weekday :integer 

i thought map integers values using enum 2 declarations:

enum summary_weekday: %w(monday tuesday wednesday thursday friday saturday sunday) enum collection_weekday: %w(monday tuesday wednesday thursday friday saturday sunday) 

but rails doesn't accept that, cannot define same value twice in same class.

you tried define enum named "summary_weekday" on model "questioncategory", generate instance method "monday?", defined enum.

how can solve this?

as of rails 5.0 can use _prefix or _suffix options when need define multiple enums same values. if passed value true, methods prefixed/suffixed name of enum.

class invoice < activerecord::base   enum verification: [:done, :fail], _prefix: true end 

it possible supply custom prefix.

class invoice < activerecord::base   enum verification: [:done, :fail], _prefix: :verification_status end