Multiple sets of radio buttons in a rails view

Question

Is there a way to set up two groups of radio buttons in Rails? I can imagine you could put them into separate forms perhaps but is there a way to create two sets of radio buttons within one form?

Answer 1

Yes, you can create two different sets by simply using a different radio-button name:

radio_button_tag 'gender', 'male'
radio_button_tag 'gender', 'female'

radio_button_tag 'food', 'none'
radio_button_tag 'food', 'vegetarian'
radio_button_tag 'food', 'vegan'

This will result in params[:gender] being 'male' or 'female' and params[:food] being 'none', 'vegetarian' or 'vegan'. You can do the same thing with the radio_button function.

Answer 2

Radio buttons with the same name attributes are grouped. So make sure your Rails code uses the same names for the radio buttons within a group.

According to the documentation the first parameter of the radio_button method is the name, so keep this parameter the same.