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Use AASM::NO_VALUE as default value for to_state argument

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Huiming Teo 2017-07-26 21:05:43 +08:00 • committed by Anil Kumar Maurya
parent 6d6bcf8471
commit 119775f0b1
2 changed files with 12 additions and 11 deletions
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2
lib/aasm/aasm.rb
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@ -1,4 +1,6 @@
module AASM
# this is used internally as an argument default value to represent no value
NO_VALUE = :_aasm_no_value
# provide a state machine for the including class
# make sure to load class methods as well

21
lib/aasm/core/event.rb
View file

@ -40,11 +40,11 @@ module AASM::Core
# a neutered version of fire - it doesn't actually fire the event, it just
# executes the transition guards to determine if a transition is even
# an option given current conditions.
def may_fire?(obj, to_state=nil, *args)
def may_fire?(obj, to_state=::AASM::NO_VALUE, *args)
_fire(obj, {:test_only => true}, to_state, *args) # true indicates test firing
end
def fire(obj, options={}, to_state=nil, *args)
def fire(obj, options={}, to_state=::AASM::NO_VALUE, *args)
_fire(obj, options, to_state, *args) # false indicates this is not a test (fire!)
end
@ -121,20 +121,19 @@ module AASM::Core
definitions
end
def _fire(obj, options={}, to_state=nil, *args)
def _fire(obj, options={}, to_state=::AASM::NO_VALUE, *args)
result = options[:test_only] ? false : nil
transitions = @transitions.select { |t| t.from == obj.aasm(state_machine.name).current_state || t.from == nil}
return result if transitions.size == 0
# If to_state is not nil it either contains a potential
# to_state or an arg
unless to_state == nil
if !to_state.respond_to?(:to_sym) || !transitions.map(&:to).flatten.include?(to_state.to_sym)
args.unshift(to_state)
to_state = nil
end
if to_state == ::AASM::NO_VALUE
to_state = nil
elsif to_state.respond_to?(:to_sym) && transitions.map(&:to).flatten.include?(to_state.to_sym)
# nop, to_state is a valid to-state
else
args.unshift(nil) if args.nil? || args.empty? # If single arg given which is nil, push it back to args
# to_state is an argument
args.unshift(to_state)
to_state = nil
end
transitions.each do |transition|