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module ActionController #:nodoc:
module Dependencies #:nodoc:
def self.append_features(base)
super
base.extend(ClassMethods)
end
module ClassMethods
def model(*models)
require_dependencies(:model, models)
depend_on(:model, models)
end
def service(*services)
require_dependencies(:service, services)
depend_on(:service, services)
end
def observer(*observers)
require_dependencies(:observer, observers)
depend_on(:observer, observers)
instantiate_observers(observers)
end
def dependencies_on(layer) # :nodoc:
read_inheritable_attribute("#{layer}_dependencies")
end
def depend_on(layer, dependencies)
write_inheritable_array("#{layer}_dependencies", dependencies)
end
private
def instantiate_observers(observers)
observers.flatten.each { |observer| Object.const_get(Inflector.classify(observer.to_s)).instance }
end
def require_dependencies(layer, dependencies)
dependencies.flatten.each do |dependency|
begin
require_or_load(dependency.to_s)
rescue LoadError
raise LoadError, "Missing #{layer} #{dependency}.rb"
end
end
end
end
end
end
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