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Versions: 26
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Stored size: 1.11 KB
Contents
module ApiResource
module Observing
extend ActiveSupport::Concern
include ActiveModel::Observing
# Redefine these methods to
included do
%w( create save update destroy ).each do |method|
alias_method_chain method, :observers
end
end
%w( create save update destroy ).each do |method|
module_eval <<-EOE, __FILE__, __LINE__ + 1
def #{method}_with_observers(*args)
unless notify_observers(:before_#{method})
return false
end
result = #{method}_without_observers(*args)
notify_observers(:after_#{method}) if result
return result
end
EOE
end
# also need to override notify_observers to return false if
# ANY of the observers return false, however it will ALWAYS run them all
def notify_observers(method)
self.class.observer_instances.inject(true) do |accum, obs|
obs.update(method, self) && accum
end
end
end
# Blank class here for ease of use, might need
# some methods some day
class Observer < ActiveModel::Observer
end
end
Version data entries
26 entries across 26 versions & 1 rubygems