Class: Orchestrated::OrchestrationDependency

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/orchestrated/dependency.rb

Instance Method Summary collapse

Instance Method Details

#_constrain ⇒ Object 



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# File 'lib/orchestrated/dependency.rb', line 35

def _constrain
  if prerequisite.present?
    # This method can be called more than once in general since it is called
    # as part of validation. Rather than loosening the state machine (to allow
    # e.g. complete=>complete) we explicitly avoid re-submitting events here.
    prerequisite_completed if prerequisite.complete? && can_prerequisite_completed?
    prerequisite_canceled if prerequisite.canceled? && can_prerequisite_canceled?
  end
  true
end

#call_dependent {|dependent| ... } ⇒ Object

Yields:

  • (dependent) 


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# File 'lib/orchestrated/dependency.rb', line 28

def call_dependent(&block)
  yield dependent unless dependent.nil?
end

#constrain ⇒ Object 



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# File 'lib/orchestrated/dependency.rb', line 31

def constrain
  @saving = true
  _constrain.tap{@saving = false}
end

#save_avoiding_recursion ⇒ Object 



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# File 'lib/orchestrated/dependency.rb', line 45

def save_avoiding_recursion
  # Default action of state_machine is "save", however that is
  # a problem when we need to transition state during validation
  # (see constrain method above). If were are validating then we
  # dursnt call save again.
  if @saving
    true # allow state transition but don't save ActiveRecord
  else
    save # save ActiveRecord as usual and return true/false
  end
end