adds poll/booth_assigments

db/migrate/20161130123347_create_poll_booth_assignments.rb

@@ -0,0 +1,9 @@
+class CreatePollBoothAssignments < ActiveRecord::Migration
+  def change
+    create_table :poll_booth_assignments do |t|
+      t.integer :booth_id
+      t.integer :poll_id
+      t.timestamps null: false
+    end
+  end
+end