boolean validation

rubyonrails-core
1

I’m relatively new to Rails and was wondering what the reasoning behind the following is:

I have a boolean field processed that I want to set to false by default:

before_validation(on: :create) do

self.processed ||= false

end

validates :processed, presence: true

This only works if I modify it to the following, which with my knowledge don’t find intuitive:

before_validation(on: :create) do

self.processed ||= false

true

end

validates :processed, inclusion: { in: [true, false] }

Is this a design choice or is it simply too hard too implement (Object#blank etc)?

2

You can add the default false value to the DB column and if the value is nil, it will set it to false on save.

3

It is a design choice, see for example Redirecting to Google Groups for rationales.

4

These kinda default values are better to handled in the database IMO.

5

Thanks everyone, I’ll then keep using the inclusion validator and only set default values in the DB.