form options selections demystified...

rubyonrails-talk
1

Hi there,

I have a form which has a variety of fields and field types. Each field is presenting a unique challenge in understanding how the active option is selected by default from data in the corresponding model.

In one instance, I have two radio buttons, "on" and "off." In the controller, I load up the boolean value for the user's settings from the model user > notifications.

In the view I have the following:

<%= radio_button :user, :notifications, 1, :onclick => "Field.enable('time'), Field.enable('period')" %> on <%= radio_button :user, :notifications, 0, :onclick => "Field.disable('time'), Field.disable('period')" %> off

I've added :checked => checked to get a default option (so I know that works), but what I want is for the checked option to correspond to the state in the model :user, :notifications. How do i do this???

These form helpers I'm finding confusing for this. Thanks for the help.

-Alex

2

ressister wrote:

Hi there,

I have a form which has a variety of fields and field types. Each field is presenting a unique challenge in understanding how the active option is selected by default from data in the corresponding model.

These form helpers I'm finding confusing for this. Thanks for the help.

-Alex

I prefer radio_button_tag. For the third param, supply a method call to a function in the model that returns true or false depending on whether it should be selected or not.

jp