Add submission count and date to form card

app/models/form.rb

@@ -11,6 +11,15 @@ class Form < ApplicationRecord
 
   validates_presence_of :title
 
+  # TODO: use counter_cache option on association
+  def submissions_count
+    submissions.count
+  end
+
+  def last_submission_date
+    submissions.order(created_at: :desc).first&.created_at
+  end
+
   def deactivate!(reason = nil)
     self.user.deactivate!(reason)
   end