Observe_field for radio_button

Rails
1

Hi,

I need to observe a set of radio buttons but am having great trouble. My
observe_field looks like this:

<%= observe_field :user_select, :frequency => 0, :url => { :action =>
:admin_control } %>

Now it works fine if I use a text_field like this:

<%= text_field :user, :select, “size” => 20, “maxlength” => 16 %>

But I want a radio button, and what I have is this:

<%= radio_button(“user”, “select”, user.id) %>

The above doesn’t work and neither does:

<%= radio_button_tag(“admin”, “select”, user.id) %>

I ahve no clue why the radio buttons don’t work with the observer. Any
help would be greatly appreciated!

Thanks,

Aditya

2

Aditya R. wrote:

<%= radio_button_tag(“admin”, “select”, user.id) %>
The current API docs have not been updated to reflect the fact that the
radio button helper creates an input with an id of object_method_value
rather than just object_method. (Remember: “View source” is your
friend.)

So you want:

<%= observe_field ‘user_select_’ + @user.id, … } %>

(You also want user to be an instance variable for the radio button
helper to create an appropriately-selected input.)

–
We develop, watch us RoR, in numbers too big to ignore.

3

Mark,

Thanks for the reply. Actually, I noticed in the page source that Rails
adds the @user.id part in the ‘id’ of the radio button. I tried your
solution soon after posting my earlier message, but surprisingly it
diidn’t work, although it created the same ‘id’ as the text_field does
:confused:

I think I’ve got it to wok by not using the radio_button method at all
but simply using the HTML tag like this:

<INPUT type=“radio” id=“user_select” name=“user[select]” value=<%=
user.id %> >

Your solution should work though, don’t know why it doesn’t.

-Aditya

Mark Reginald J. wrote:

Aditya R. wrote:

<%= radio_button_tag(“admin”, “select”, user.id) %>
The current API docs have not been updated to reflect the fact that the
radio button helper creates an input with an id of object_method_value
rather than just object_method. (Remember: “View source” is your
friend.)

So you want:

<%= observe_field ‘user_select_’ + @user.id, … } %>

(You also want user to be an instance variable for the radio button
helper to create an appropriately-selected input.)

–
We develop, watch us RoR, in numbers too big to ignore.