Module: Hyperactive::Transactions::Participant

Included in:
Record::Bass
Defined in:
lib/hyperactive/transactions.rb

Overview

Include this to get methods to do with participating in a transaction.

Defined Under Namespace

Modules: ClassMethods

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#transaction ⇒ Object (readonly)

The transaction we are currently in.



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# File 'lib/hyperactive/transactions.rb', line 33

def transaction
  @transaction
end

Class Method Details

.append_features(base) ⇒ Object

Add our ClassMethods to anyone that includes us.



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# File 'lib/hyperactive/transactions.rb', line 62

def self.append_features(base)
  super
  base.extend(ClassMethods)
end

Instance Method Details

#with_transaction(transaction, &block) ⇒ Object

Will execute block within a transaction.

What it does is just set the @transaction instance variable before calling the block, and unsetting it after.

This means that any classes that want to be transaction sensitive need to take heed regarding the @transaction instance variable.

For example, when creating new Record instances you may want to use get_instance_with_transaction(@transaction, *args) to ensure that the new instance exists within the same transaction as yourself.

See Hyperactive::List::Head and Hyperactive::Hash::Head for examples of this behaviour.



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# File 'lib/hyperactive/transactions.rb', line 50

def with_transaction(transaction, &block)
  @transaction = transaction
  begin
    yield
  ensure
    @transaction = nil
  end
end