如何显示错误消息以在集合选择工作simple_form上进行验证？

Question

I'm on mobile so don't have access to my code until later. But the basics are this: I have a simple_form to create/edit a listing on my site. Certain parameters are required. I use validates presence of in the model. When submitting the form, if I text box that is required isn't filled out, the validation works fine, error pops up and says please fill in. When a button is not selected for one of the collection selects, nothing happens. Obviously the validation is working because the form won't submit, but no error is thrown. Any ideas on how to get the error to show for a collection select with radio buttons?

Answer 1

In your form do you have?

<%= form.error_notification %>

Or you can do it in a different way, if you don't want to do it with the form helper.

<%= @instance_variable.errors.full_messages if @instance_variable.errors.any? %>

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