CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3ruby-on-rails-4
myhouse
myhouse

Reputation: 1991

Ruby on Rails validation if one attribute is true then cannot be blank else allow blank

I have a true and false questionnaire. I would like the user to give an explanation if click true.

For example :

Do you like pineapple in your pizza?
(0)True  ( )False

If true, please explain:
______________________________
|                            |
|                            |
|                            |
|                            |
------------------------------

On my validation, I would like to check if is false allow blank and if it is true to not allow the explanation to be blank.

This is what I tried so far for my model validation:

validates_presence_of :is_pinnapple_pizza
validates :pinnapple_pizza_explanation, presence: {if: :is_pinnapple_pizza?}

The problem is that if I click false, it returns a "can't be blank" error in the question when answer false.

Do you like pineapple in your pizza?
( )True  (0)False

can't be blank

If true, please explain:
______________________________
|                            |
|                            |
|                            |
|                            |
------------------------------

Thank you in advance.

Upvotes: 1

Views: 831

Answers (2)

EJAg
EJAg

Reputation: 3298

There's something wrong with your code. You should use

#use inclusion to validate boolean field, because false.blank? => true
validates :is_pinnaple_pizza, inclusion: { in: [true, false] }
validates :pinnapple_pizza_explanation, presence: true, if: :is_pinnapple_pizza?

Upvotes: 3

myhouse
myhouse

Reputation: 1991

I first thought my text area was giving the error, but I notice that the radio buttons were causing problems when you select false. I added my own custom validation instead and it's working

validate :validate_pizza
validates :pinnapple_pizza_explanation, presence: {if: :is_pinnapple_pizza?}
private

def validate_pizza
    if is_pinnapple_pizza.nil?
         errors.add(:is_pinnapple_pizza, "PLEASE SELECT YES OR NO")
    end
end

Upvotes: 0

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