Rails - Default selected radiobutton in SimpleForm :collection

Question

I\'ve litte problem with radiobuttons in SimpleForm.

When i use

= f.association :manufactureType, :collection => ManufactureType.all, :as => :         


        

Answer 1

Here is an excerpt of my code which works:

= f.input :body_format,
  collection: [['markdown', 'Markdown']],
  label_method: :last,
  value_method: :first,
  as: :radio_buttons,
  checked: 'markdown', # THIS
  required: true