Rails - Aug 2009 - Problem with radio buttons if input required (validates_presence_of)

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

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

-- 
Posted via http://www.ruby-forum.com/.

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 List:


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

-- 
Posted via http://www.ruby-forum.com/.