I have a situation where when the user selects a state for a model by
choosing a particular menu item in the view, I want to either show or
hide a DIV containing other relevant attribute choices... pretty basic
stuff, but I'm still a newbie on a lot of the rails view/ui stuff.
I think I need a combination of observe_field on the attribute being
changed by the menu and then some kind of Prototype toggle effect. And
I also need to check the match the user's menu choice against a
condition that says whether or not to show the secondary set of
choices in the DIV.
Can anyone show me what the code fragment would look like to do this?
<div id='test_div'>
this is the text to hide
</div>
Click toggle to hide the text:
<%= link_to_remote "Toggle", :url=>{:action=>:toggle} %>
In the controller:
def toggle
render :update do |page|
page.hide 'test_div'
end
end
That is very simplistice but it may get you started. If you want to
toggle both ways then you need to be a bit smarter. From your
description, I suspect you actually want a drop down select box. So
you will need to use observe field to call a method that will check
the selected value and render hide or show accordingly.