Module: Foobara::Persistence::EntityBase::Transaction::Concerns::StateTransitions

Defined in:
foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb

Instance Method Summary collapse

Instance Method Details

#commit! ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 57

def commit!
  return commit_nested! if nested?

  state_machine.commit! do
    each_table(&:commit!)
    entity_attributes_crud_driver.commit_transaction(raw_tx)
    each_table(&:transaction_closed)
  end
rescue => e
  # :nocov:
  rollback!(e)
  raise
  # :nocov:
end

#commit_nested! ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 72

def commit_nested!
  state_machine.commit_nested! do
    each_table(&:commit!)
    entity_attributes_crud_driver.flush_transaction(raw_tx)
    each_table(&:transaction_closed)
  end
rescue => e
  # :nocov:
  rollback!(e)
  raise
  # :nocov:
end

#currently_open? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 12

def currently_open?
  state_machine.currently_open?
end

#each_table ⇒ Object

TODO: this belongs elsewhere



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 86

def each_table(&)
  @ordered_tables ||= if tables.size <= 1
                        tables.values
                      else
                        entity_class_to_table = {}
                        entity_classes = []

                        tables.each_value do |table|
                          entity_class = table.entity_class
                          entity_classes << entity_class
                          entity_class_to_table[entity_class] = table
                        end

                        ordered_entity_classes = EntityBase.order_entity_classes(entity_classes)

                        ordered_entity_classes.map do |entity_class|
                          entity_class_to_table[entity_class]
                        end
                      end

  @ordered_tables.each(&)
end

#flush! ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 29

def flush!
  state_machine.flush! do
    each_table(&:validate!)
    each_table(&:flush_created!)
    each_table(&:flush_updated_and_hard_deleted!)
  end
  entity_attributes_crud_driver.flush_transaction(raw_tx)
rescue => e
  # :nocov:
  rollback!(e)
  raise
  # :nocov:
end

#open! ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 16

def open!
  state_machine.open! do
    self.raw_tx = entity_attributes_crud_driver.open_transaction
  end
end

#open_nested!(outer_tx) ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 22

def open_nested!(outer_tx)
  state_machine.open_nested! do
    self.is_nested = true
    self.raw_tx = outer_tx.raw_tx
  end
end

#revert! ⇒ Object

Should communicate somehow that this is only in-memory. TODO: support multiple-reverts for databases that support checkpoints



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 45

def revert!
  state_machine.revert! do
    each_table(&:revert!)
  end
  entity_attributes_crud_driver.revert_transaction(raw_tx)
rescue => e
  # :nocov:
  rollback!(e)
  raise
  # :nocov:
end

#rollback!(because_of = nil) ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 109

def rollback!(because_of = nil)
  return rollback_nested!(because_of) if nested?

  state_machine.rollback! do
    # TODO: raise error if already flushed and if crud_driver doesn't support true transactions
    entity_attributes_crud_driver.rollback_transaction(raw_tx)
    each_table(&:rollback!)
  end

  each_table(&:transaction_closed)

  if !because_of && (self == entity_base.current_transaction)
    raise RolledBack, "intentionally rolled back"
  end
rescue
  state_machine.error! if state_machine.currently_open?
  raise
end

#rollback_nested!(because_of = nil) ⇒ Object 



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# File 'foobara-0.1.7/projects/persistence/src/entity_base/transaction/concerns/state_transitions.rb', line 128

def rollback_nested!(because_of = nil)
  state_machine.rollback_nested! do
    entity_attributes_crud_driver.revert_transaction(raw_tx)
    each_table(&:revert!)
  end

  each_table(&:transaction_closed)

  if !because_of && (self == entity_base.current_transaction)
    raise RolledBack, "intentionally rolled back"
  end
rescue
  state_machine.error! if state_machine.currently_open?
  raise
end