[Rails] ActiveRecord time and datetime

Hi,

Suppose I have a model class which has a time field:

class CreateAppointments < ActiveRecord::Migration
def change
create_table :appointments do |t|
t.string :name
t.datetime :startTime
t.datetime :endTime
t.string :description

t.timestamps
end
end
end

When I test drive it in rails console, I can input any value int he
startTime and endTime such as:

a = Appointment.new()
a.startTime = 1234
a.endTime = 5678
a.save()

My question is does Rails support some basic data type validation for us
so that we can always input a correct format?

Thanks,
Kahou

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