Create/Update Multiple Associated Records with Checkboxes, Fix
Instead of writing a tutorial myself, I'm just going to recommend reading this post:
http://millarian.com/rails/quick-tip-has_many-through-checkboxes/
Essentially creating something like this:
What I wanted to note here is that, in Millarian, the author suggested the following line in the controller to update the form with not checkboxes selected:
This, however, no longer works in Rails 5, so you see in my example - line 4, I've added a hidden field of value "" (nil) which would update the record to no associations when all checkboxes are left empty.
http://millarian.com/rails/quick-tip-has_many-through-checkboxes/
Essentially creating something like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | <%= form_for :interests, html: {id: "interests_form"} do |f| %> <div class="field"> <%= f.label :interests %><br /> <%= hidden_field_tag 'user[interest_ids][]', '' %> <% @interests.each do |interest| %> <div class="interest_option" > <%= check_box_tag 'user[interest_ids][]', interest.id, @user.interest_ids.include?(interest.id), class:"interest_checkbox" %> <div class="interest_tag" ><%= label_tag interest.name %></div> </div> <% end %> </div> <% end %> |
What I wanted to note here is that, in Millarian, the author suggested the following line in the controller to update the form with not checkboxes selected:
1 | @user.attributes = {'group_ids' => []}.merge(params[:user] || {})
|
This, however, no longer works in Rails 5, so you see in my example - line 4, I've added a hidden field of value "" (nil) which would update the record to no associations when all checkboxes are left empty.
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