Class: Authorizer::ObjectObserver

Inherits:
ActiveRecord::Observer
  • Object
show all
Defined in:
lib/authorizer/object_observer.rb

Overview

Observes users and deleted any associated ObjectRole objects when the user gets deleted.

Instance Method Summary collapse

Instance Method Details

#after_destroy(object) ⇒ Object

W DONT DO DIZ let’s use before_destroy instead of after_destroy. More chance it will still have an ID >:)))))))))) :‘) :DDDDDDDDDDDDDDDDDDDDDDD W DONT DO DIZ



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# File 'lib/authorizer/object_observer.rb', line 11

def after_destroy(object)
  return nil if object.is_a?(User) # Users are covered by the other observer class.
  # Find all ObjectRole records that point to this object.
  object_roles = ObjectRole.find_all_by_object(object)
  # Walk through 'em
  for object_role in object_roles
    object_role.destroy
  end
end

#after_update(object) ⇒ Object

This is a Rails only feature: Single Table Inheritance (STI) is implemented using the Type column. The ‘type’ column contains the name of the subclass of the table the record is in. For example, Dog is a subclass of Animal. If we have a Dog object here that changes its ‘type’ to Animal, the ObjectRole must be updated to reflect the new class name.



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# File 'lib/authorizer/object_observer.rb', line 26

def after_update(object)
  type = object.try(:read_attribute, :type)
  # Big chance the object doesn't even have the 'type' attribute. In that case, do nothing.
  unless type.blank?
    object_class_name = object.class.to_s
    # This is how we gonna detect that the type has changed:
    # object_class_name should be different than type.
    unless type.eql?(object_class_name)
      object_roles = ObjectRole.find_all_by_object(object)
      # Walk through the object roles associated with this object
      for object_role in object_roles
        # update it!
        # it should reflect the new type.
        object_role.update_attributes!( :klazz_name => type )
      end
    end
  end
end