Module: ActiveRecord::Bitemporal::Bitemporalize

Defined in:
lib/activerecord-bitemporal.rb

Defined Under Namespace

Modules: ClassMethods, InstanceMethods

Instance Method Summary collapse

Instance Method Details

#bitemporalize(enable_strict_by_validates_bitemporal_id: false, enable_default_scope: true, enable_merge_with_except_bitemporal_default_scope: false) ⇒ Object 



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# File 'lib/activerecord-bitemporal.rb', line 113

def bitemporalize(
  enable_strict_by_validates_bitemporal_id: false,
  enable_default_scope: true,
  enable_merge_with_except_bitemporal_default_scope: false
)
  extend ClassMethods
  include InstanceMethods
  include ActiveRecord::Bitemporal::Scope

  if enable_merge_with_except_bitemporal_default_scope
    relation_delegate_class(ActiveRecord::Relation).prepend ActiveRecord::Bitemporal::Relation::MergeWithExceptBitemporalDefaultScope
  end

  if enable_default_scope
    default_scope {
      bitemporal_default_scope
    }
  end

  after_create do
    # MEMO: #update_columns is not call #_update_row (and validations, callbacks)
    update_columns(bitemporal_id_key => swapped_id) unless send(bitemporal_id_key)
    swap_id!(without_clear_changes_information: true)
  end

  after_find do
    self.swap_id! if self.send(bitemporal_id_key).present?
  end

  # Callback hook to `validates :xxx, uniqueness: true`
  const_set(:UniquenessValidator, Class.new(ActiveRecord::Validations::UniquenessValidator) {
    prepend ActiveRecord::Bitemporal::Uniqueness
  })

  # validations
  validates :valid_from, presence: true
  validates :valid_to, presence: true
  validates :transaction_from, presence: true
  validates :transaction_to, presence: true
  validate :valid_from_cannot_be_greater_equal_than_valid_to
  validate :transaction_from_cannot_be_greater_equal_than_transaction_to

  validates bitemporal_id_key, uniqueness: true, allow_nil: true, strict: enable_strict_by_validates_bitemporal_id

  prepend_relation_delegate_class ActiveRecord::Bitemporal::Relation
end