Module: Tengine::Core::OptimisticLock::ClassMethods

Defined in:
lib/tengine/core/optimistic_lock.rb

Overview

ActiveRecord::Locking::Optimistic::ClassMethods を参考に実装していますgithub.com/rails/rails/blob/master/activerecord/lib/active_record/locking/optimistic.rb

Constant Summary collapse

DEFAULT_LOCKING_FIELD = 
'lock_version'.freeze

Instance Method Summary collapse

Instance Method Details

#locking_field ⇒ Object

The version field used for optimistic locking. Defaults to lock_version.



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# File 'lib/tengine/core/optimistic_lock.rb', line 82

def locking_field
  reset_locking_field
end

#reset_locking_field ⇒ Object

Reset the field used for optimistic locking back to the lock_version default.



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# File 'lib/tengine/core/optimistic_lock.rb', line 87

def reset_locking_field
  set_locking_field DEFAULT_LOCKING_FIELD
end

#set_locking_field(value = nil) ⇒ Object

Set the field to use for optimistic locking. Defaults to lock_version.



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# File 'lib/tengine/core/optimistic_lock.rb', line 75

def set_locking_field(value = nil)
  # 後者のlocking_fieldメソッドを上書きします。
  self.instance_eval("def locking_field; #{value.inspect}; end")
  value
end