Problem with radio buttons if input required (validates_presence_of)

Rails
#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

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?.

http://www.craigslistcloned.com
A craigslist clone in Rails

#3

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

Am 26.08.2009 um 13:31 schrieb Rails L.:

Knut Rollig wrote:

expected
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?.

http://www.craigslistcloned.com
A craigslist clone in Rails

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