Question

I have a one to many relationship between Admins and Users.

Admin has_many :users
Admin accepts_nested_attributes_for :users

User belongs_to :admin

I’d like the admin edit form to include a list of all users with checkboxes next to each user, so that the admin can choose which users are associated with that admin.

I know how to do this for a many to many association, but have no idea how to make it work for the ‘simpler’ version.

Answer 1

One way is created form with form_tag and for checkbox instead simple user you can use

<%= checkbox_tag "user_ids[]" %>

It will pass array of user_id and on controller side you can iterate the array of user_ids and assign to admin.