add `boostable` attribute to statuses model

app/models/status.rb

@@ -31,6 +31,7 @@
 #  edited                 :boolean
 #  imported               :boolean
 #  origin                 :string
+#  boostable              :boolean
 #
 
 class Status < ApplicationRecord

db/migrate/20190728201832_add_boostable_to_statuses.rb

@@ -0,0 +1,5 @@
+class AddBoostableToStatuses < ActiveRecord::Migration[5.2]
+  def change
+    add_column :statuses, :boostable, :boolean
+  end
+end