Release users from the burden of needing to have a dagschotel

app/models/user.rb

@@ -29,8 +29,6 @@ class User < ActiveRecord::Base
   has_many :products, through: :orders
   belongs_to :dagschotel, class_name: 'Product'
 
-  validates :dagschotel, presence: true, if: -> { dagschotel_id }
-
   scope :members, -> { where koelkast: false }
   scope :publik,  -> { where private: false }
 

app/views/products/_links.html.haml

@@ -6,4 +6,4 @@
     - if current_user.dagschotel != product
       = button_to "Make dagschotel", { controller: 'users', action: 'update', "user[dagschotel_id]" => product.id }, method: :put, class: "btn btn-default"
     - else
-      %span.btn.btn-success= "Current dagschotel"
+      = button_to "Current dagschotel", { controller: 'users', action: 'update', "user[dagschotel_id]" => "nil"  }, method: :put, class: "btn btn-success"