Problem with radio buttons if input required (validates_presence_of)

rubyonrails-talk
1

Hi,

I am using two radio buttons ('yes', 'no') for one single field (here:
newsletter). In my model I defined the field as required (validates_presence_of). In my view, field value gets set based on user input. As default no
radio button is set initially.

The issue: - If no selection is made by user, exception is thrown => good/expected - If user selects 'Yes', field is set to true and everything works fine - If user selects 'No', field is set to 'false', but
validates_presence_of still generates exception => no good/unexpected

Here are the code snipplets: Model:    validates_presence_of :newsletter,                          :message => "Please select yes or no." View:   Yes<%= f.radio_button :newsletter, true %>   No<%= f.radio_button :newsletter, false %>   <%= error_message_on(:registration, :newsletter)%>

Any hint / advice is very much appreciated. Thanks in advance!

Regards, Knut

2

Okay, achieved to solve it by defining a custom validation.

   def validate      if newsletter.nil?        errors.add(:newsletter, "Please specify 'yes' or 'no'")      end    end

Knut Rollig wrote:

Hi,

I am using two radio buttons ('yes', 'no') for one single field (here: newsletter). In my model I defined the field as required (validates_presence_of). In my view, field value gets set based on user input. As default no radio button is set initially.

The issue: - If no selection is made by user, exception is thrown => good/ expected - If user selects 'Yes', field is set to true and everything works
fine - If user selects 'No', field is set to 'false', but validates_presence_of still generates exception => no good/unexpected

Here are the code snipplets: Model:   validates_presence_of :newsletter,                         :message => "Please select yes or no." View: Yes<%= f.radio_button :newsletter, true %> No<%= f.radio_button :newsletter, false %> <%= error_message_on(:registration, :newsletter)%>

Any hint / advice is very much appreciated. Thanks in advance!

Regards, Knut

I think boolean's are handled differently, did you try validates_inclusion_of?.

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