20181104140606_course_codes.up.fizz

create_table("classes") {
  t.Column("id", "uuid", {"primary": true})
  t.Column("topic", "string")
  t.DisableTimestamps()
}

create_table("course_codes") {
  t.Column("id", "uuid", {"primary": true})
  t.Column("course_id", "uuid", {"null":true})
  t.Column("class_id", "uuid")
  t.Timestamps()
}