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Contents
module AASM
module SupportingClasses
class StateTransition
attr_reader :from, :to, :opts
alias_method :options, :opts
def initialize(opts)
@from, @to, @guard, @on_transition = opts[:from], opts[:to], opts[:guard], opts[:on_transition]
@opts = opts
end
# TODO: should be named allowed? or similar
def perform(obj, *args)
case @guard
when Symbol, String
obj.send(@guard, *args)
when Proc
@guard.call(obj, *args)
else
true
end
end
def execute(obj, *args)
@on_transition.is_a?(Array) ?
@on_transition.each {|ot| _execute(obj, ot, *args)} :
_execute(obj, @on_transition, *args)
end
def ==(obj)
@from == obj.from && @to == obj.to
end
def from?(value)
@from == value
end
private
def _execute(obj, on_transition, *args)
case on_transition
when Proc
on_transition.arity == 0 ? on_transition.call : on_transition.call(obj, *args)
when Symbol, String
obj.send(:method, on_transition.to_sym).arity == 0 ? obj.send(on_transition) : obj.send(on_transition, *args)
end
end
end
end # SupportingClasses
end # AASM
Version data entries
16 entries across 16 versions & 1 rubygems