a few ideas (udt)

gistfile1.txt

class Udt < ActiveRecord::Base
  include AASM
  has_paper_trail
  belongs_to :project
  has_one :organization, through: :project

  has_one :workflow, dependent: :destroy
  has_many :workflow_scripts, as: :aasm_scriptable, dependent: :destroy, class_name: 'AasmScript'

  has_many :udt_table_fields, -> { order(position: :asc) }, dependent: :destroy
  has_many :udt_fields, through: :udt_table_fields, source: :udt_field

  has_many :udt_forms, dependent: :destroy
  has_many :udt_associations, as: :udt_assoc, dependent: :destroy
  #has_many :reciprocal_associations, class_name: 'UdtAssociation' #, source: :udt #foreign_key: 'udt_id' #'udt_assoc_id'
    # , after_add: :reset_udt_const, after_remove: :reset_udt_const
  has_many :udt_import_maps, dependent: :destroy

  has_many :group_cruds, dependent: :destroy

  has_many :label_fields,  dependent: :destroy
  has_many :label_udt_fields, through: :label_fields, source: :udt_field

  has_one :csv_import, as: :importable

  has_one :image, -> { where usage:  'front_page'},
    as: :attachable,  dependent: :destroy, class_name: 'Attachment'

  validates_presence_of :name, :project_id #, :db_table_name
  validates_uniqueness_of :db_table_name, scope: :project
  validates_uniqueness_of :name, scope: :project

  # TODO: fix this!!
  before_validation :set_project_table_name, on: :create

  after_destroy :drop_udt
  after_update :reset_udt_const

  aasm do
    state :disabled, :initial => true
    state :active #,  :before_enter => :create_or_alter_table

    event :activate do
      transitions :from => [:disabled], :to => :active
    end
    event :disable do
      transitions :from => [:active], :to => :disabled
    end
  end
end