Ruote::Exp::RestoreExpression

Restores the fields of the current workitem. That means usually copying them from a saved version in a variable or in a separate field.

restore :from_var => 'v'

restore :from_f => 'customer.address.street', :to_f => 'delivery.street'

(yes, this sets the field 'street' inside of the field 'delivery')

set_fields

This expressions has a 'set_fields' alias. It can be handy (and readable) to set a bunch of workitem fields in one sweep somewhere in a process :

Ruote.process_definition :name => 'working hard' do
  sequence do
    set_fields :val => { 'customer' => { 'name' => 'Fred', 'age' => 40 } }
    participant :ref => 'delivery'
    participant :ref => 'invoincing'
  end
end

Public Instance Methods

apply() click to toggle source

# File lib/ruote/exp/fe_restore.rb, line 62
def apply

  from =
    has_attribute(*] v var variable ].map { |k| "from_#{k}" }) ||
    has_attribute(*] f fld field ].map { |k| "from_#{k}" }) ||
    has_attribute(*] val value ])

  to =
    has_attribute(*] f fld field ].map { |k| "to_#{k}" }) ||
    has_attribute('to')

  from = 'from_var' if from == 'from_v'

  afrom = attribute(from)

  fields = if from.match(/var/)
    lookup_variable(afrom)
  elsif from.match(/f/)
    Ruote.lookup(h.applied_workitem['fields'], afrom)
  else # val
    afrom
  end

  if to
    Ruote.set(h.applied_workitem['fields'], attribute(to), fields)
  else
    h.applied_workitem['fields'] = fields
  end

  # TODO : merge strategies

  reply_to_parent(h.applied_workitem)
end

reply(workitem) click to toggle source

# File lib/ruote/exp/fe_restore.rb, line 96
def reply (workitem)

  # empty, never called
end

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Ruote::Exp::RestoreExpression

set_fields

Public Instance Methods