Module: Hopscotch::Runners::Default

Extended by:
Default
Included in:
Default
Defined in:
lib/hopscotch/runners/default.rb

Instance Method Summary collapse

Instance Method Details

#call(fn, failure:, success:) ⇒ Object

Execute fn within an ActiveRecord transaction.

Rough types:

fn :: void -> ReturnValue
failure :: value -> NilClass

success :: value -> NilClass
# or
success :: void -> NilClass

If fn returns an ErrorValue, roll back the transaction and call failure with the unwrapped error value. Otherwise commit the transaction and call success.



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# File 'lib/hopscotch/runners/default.rb', line 20

def call(fn, failure:, success:)
  error = nil
  result = nil

  ActiveRecord::Base.transaction do
    result = fn.call

    if Hopscotch::Error.error?(result)
      error = result
      raise ActiveRecord::Rollback
    end
  end

  if error
    failure.call(error.value)
  else
    success.arity == 1 ? success.call(result) : success.call
  end
end

#call_each(*fns, failure:, success:) ⇒ Object

call_each composes a list of functions into a single function which it then passes along to a call to perform the workflow logic.

Each fn should have the rough type:

fn :: void -> ReturnValue



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# File 'lib/hopscotch/runners/default.rb', line 48

def call_each(*fns, failure:, success:)
  call ::Hopscotch::StepComposers::Default.compose_with_error_handling(*fns), failure: failure, success: success
end