Party:
  columns:
    is_active:            {type: boolean, default: true}
Company
    email:                {type: string(255), notnull: true, unique: true}
    password:             {type: string(255), notnull: true}
    dm_user_id:           {type: integer(11)}
  relations:
    User:
      class: DmUser
      type: one
      foreignType: one
      local: dm_user_id
      foreign: id
      foreignAlias: Party

IrdvPartyState:
  columns:
    party_id:             {type: integer(11), notnull: true}
    state:                {type: enum, values: [STATE_ACTIVATED, STATE_DEACTIVATED], default: STATE_ACTIVATED}
    from_date:            {type: timestamp}
    to_date:              {type: timestamp}
  relations:
    Party:
      class: IrdvParty
      type: one
      foreignType: many
      local: party_id
      foreign: id
      foreignAlias: States

DmUser:
  columns:
    party_type:    {type: string(40)}
    party_id:      {type: integer(11)}



Person:
  inheritance:
    type: concrete
    extends: Party
  columns:
    birth_day:            {type: date}
    first_name:           {type: string(255), notnull: true}
    last_name:            {type: string(255), notnull: true}


Customer:
  inheritance:
    type: concrete
    extends: Person