Module: ActiveRecord::Transactions

Extended by:
ActiveSupport::Concern
Included in:
Base
Defined in:
activerecord/lib/active_record/transactions.rb

Overview

See ActiveRecord::Transactions::ClassMethods for documentation.

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

ACTIONS =

:nodoc:

[:create, :destroy, :update]

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ActiveSupport::Concern

append_features, class_methods, extended, included, prepend_features, prepended

Instance Attribute Details

#_last_transaction_return_status ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 16

def _last_transaction_return_status
  @_last_transaction_return_status
end

#_new_record_before_last_commit ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 16

def _new_record_before_last_commit
  @_new_record_before_last_commit
end

Instance Method Details

#before_committed! ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 392

def before_committed! # :nodoc:
  _run_before_commit_callbacks
end

#committed!(should_run_callbacks: true) ⇒ Object

Call the #after_commit callbacks.

Ensure that it is not called if the object was never persisted (failed create), but call it after the commit of a destroyed object.



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# File 'activerecord/lib/active_record/transactions.rb', line 400

def committed!(should_run_callbacks: true) # :nodoc:
  @_start_transaction_state = nil
  if should_run_callbacks
    @_committed_already_called = true
    _run_commit_callbacks
  end
ensure
  @_committed_already_called = @_trigger_update_callback = @_trigger_destroy_callback = false
end

#destroy ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 376

def destroy # :nodoc:
  with_transaction_returning_status { super }
end

#rolledback!(force_restore_state: false, should_run_callbacks: true) ⇒ Object

Call the #after_rollback callbacks. The force_restore_state argument indicates if the record state should be rolled back to the beginning or just to the last savepoint.



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# File 'activerecord/lib/active_record/transactions.rb', line 412

def rolledback!(force_restore_state: false, should_run_callbacks: true) # :nodoc:
  if should_run_callbacks
    _run_rollback_callbacks
  end
ensure
  restore_transaction_record_state(force_restore_state)
  clear_transaction_record_state
  @_trigger_update_callback = @_trigger_destroy_callback = false if force_restore_state
end

#save ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 380

def save(**) # :nodoc:
  with_transaction_returning_status { super }
end

#save! ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 384

def save!(**) # :nodoc:
  with_transaction_returning_status { super }
end

#touch ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/transactions.rb', line 388

def touch(*, **) # :nodoc:
  with_transaction_returning_status { super }
end

#transaction(**options, &block) ⇒ Object

See ActiveRecord::Transactions::ClassMethods for detailed documentation.



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# File 'activerecord/lib/active_record/transactions.rb', line 372

def transaction(**options, &block)
  self.class.transaction(**options, &block)
end

#trigger_transactional_callbacks? ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/transactions.rb', line 447

def trigger_transactional_callbacks? # :nodoc:
  (@_new_record_before_last_commit || _trigger_update_callback) && persisted? ||
    _trigger_destroy_callback && destroyed?
end

#with_transaction_returning_status ⇒ Object

Executes a block within a transaction and captures its return value as a status flag. If the status is true, the transaction is committed, otherwise a ROLLBACK is issued. In any case, the status flag is returned.

This method is available within the context of an ActiveRecord::Base instance.



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# File 'activerecord/lib/active_record/transactions.rb', line 428

def with_transaction_returning_status
  self.class.with_connection do |connection|
    connection.pool.with_pool_transaction_isolation_level(ActiveRecord.default_transaction_isolation_level, connection.transaction_open?) do
      status = nil
      ensure_finalize = !connection.transaction_open?

      connection.transaction do
        add_to_transaction(ensure_finalize || has_transactional_callbacks?)
        remember_transaction_record_state

        status = yield
        raise ActiveRecord::Rollback unless status
      end
      @_last_transaction_return_status = status
      status
    end
  end
end