Not true, and including the same parameter more than once is actually quite common.
Rails adds the hidden input tag for you on purpose. It's to get around the problem that when a checkbox is left unchecked, browsers don't even send the form parameter in the request. So if the checkbox is left unchecked, you'll get one value sent for the parameter - the "0" defined in the hidden field. If you check the box, you get two values sent - the "0" from the hidden field, and "1" for the check box, in that order. The latter will overwrite the former in Rails' (i.e. Rack's) parameter munging code. -andy On Aug 6, 1:55 pm, ghettoiam <[email protected]> wrote: > I'm scanning this thread, you mentioned that your output is: > > <label for="service_Monday">Monday</label><input name="service > [Monday]" > type="hidden" value="0" /><input id="service_Monday" > name="service[Monday]" type="checkbox" value="1" /> > > You -cannot- have two input fields both containing the same name > value. > > I assume the value from the last input field will be the one the > browser uses. > > You have: > <input id="service_Monday" > name="service[Monday]" type="checkbox" value="1" /> > > Which means that even if it is not checked, the checkbox will return a > value of 1. And being the last input with that name, your form will > always have the value=1. > > What I think would be more helpful is: > <input type=checkbox ... checked /> (not value="1") > > Also, write an javascript function that is fired onsubmit that checks > both the checkbox and the hidden value and stores the approprite value > in the parameter before it goes to the server. > > On Aug 4, 10:25 am, 15characters 15characters <rails-mailing- > > [email protected]> wrote: > > I have a mySQL table with a bit field called Monday, which is either 0 > > or 1, 1 being 'checked' and 0 being 'not checked'. The default is 0. > > > I have a check_box form helper: > > > <%= f.label :Monday %><%= f.check_box :Monday %> > > > Which outputs HTML as follows: > > > <label for="service_Monday">Monday</label><input name="service[Monday]" > > type="hidden" value="0" /><input id="service_Monday" > > name="service[Monday]" type="checkbox" value="1" /> > > > Whatever I do, whether check or not check, the value stored in the > > database is always 1, I have tried setting different default values but > > nothing seems to help. > > > Can you advise what I'm doing wrong please? Thank ou > > -- > > Posted viahttp://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
