ruby - How to get key name from a enum value in Rails? -

i have enum in model corresponds column in database.

the enum looks like:

enum efficency: { high: 0, medium: 1, low: 2 }

how can key value

for example, have value 0, need fetch value high.

any appreciated.

model.efficiencies.key(0) # => 'high'

replace model actual name of model.

Insert