Class: Collective::Utilities::ObserverBase

Inherits:
Object
  • Object
show all
Defined in:
lib/collective/utilities/observer_base.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#subject ⇒ Object (readonly)

Returns the value of attribute subject.



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# File 'lib/collective/utilities/observer_base.rb', line 5

def subject
  @subject
end

Class Method Details

.camelize(s) ⇒ Object 



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# File 'lib/collective/utilities/observer_base.rb', line 55

def self.camelize(s)
  s.to_s.gsub(/(?:^|_|\s)(.)/) { $1.upcase }
end

.resolve(factory_or_observer, *args) ⇒ Object

factory_or_observer can be something which responds to #notify or a block which responds to #call and can return a factory_or_observer or a class which can be instantiated or a string which can be resolved to a class or an array which can be resolved to a class with parameters



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# File 'lib/collective/utilities/observer_base.rb', line 27

def self.resolve( factory_or_observer, *args )
  case
  when factory_or_observer.respond_to?(:notify)
    factory_or_observer
  when factory_or_observer.respond_to?(:call)
    resolve(factory_or_observer.call(*args))
  else
    case factory_or_observer
    when :airbrake
      resolve(Collective::Utilities::AirbrakeObserver,*args)
    when :hoptoad
      resolve(Collective::Utilities::HoptoadObserver,*args)
    when :log
      resolve(Collective::Utilities::LogObserver,*args)
    when Class
      factory_or_observer.new(*args)
    when String
      resolve(Collective.resolve_class(factory_or_observer.to_s),*args)
    when Array
      args = factory_or_observer.dup
      fobs = args.shift
      factory = resolve( fobs, *args )
    else
      return factory_or_observer # assume it supports the notifications natively
    end
  end
end

Instance Method Details

#focus(subject) ⇒ Object

It is possible but unlikely that I would want an observer to observe multiple subjects.



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# File 'lib/collective/utilities/observer_base.rb', line 11

def focus( subject )
  @subject = subject
end

#notify(subject, *details) ⇒ Object 



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# File 'lib/collective/utilities/observer_base.rb', line 15

def notify( subject, *details )
  if self.respond_to?(details.first) then
    details = details.dup
    self.send( details.shift, *details )
  end
end