zone and seat_table models

db/migrate/20170324135138_create_zones.rb

@@ -0,0 +1,9 @@
+class CreateZones < ActiveRecord::Migration[5.0]
+  def change
+    create_table :zones do |t|
+      t.string :name, :null => false
+      t.boolean :is_active, :default => true
+      t.timestamps
+    end
+  end
+end