class AddCourseActivities < ActiveRecord::Migration
  def up
    create_table :user_activities do |t|
      t.string :act_type
      t.integer :act_id
      t.string :container_type
      t.integer :container_id

      t.timestamps
    end

    create_table :course_activities do |t|
      t.integer :user_id
      t.integer :course_id
      t.integer :course_act_id
      t.string :course_act_type
      t.timestamps
    end
  end

  def down
    drop_table :course_activities
    drop_table :user_activities
  end
end