Module: OnDestroy::Model

Extended by:
ActiveSupport::Concern
Defined in:
lib/on_destroy/model.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#destroy ⇒ Object

if self.do_not_delete? runs no/empty callback on :destroy, otherwise calls super.



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# File 'lib/on_destroy/model.rb', line 39

def destroy
  if self.do_not_delete?
    # don't destroy
    run_callbacks(:destroy) {}
  else
    # destroy
    super
  end
end

#destroyed? ⇒ Boolean Also known as: deleted?

Returns:

  • (Boolean) 


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# File 'lib/on_destroy/model.rb', line 54

def destroyed?
  if self.on_destroy_options
    is_deleted_if = self.on_destroy_options[:is_deleted_if]
    o_set = self.on_destroy_options[:set]
    o_to = self.on_destroy_options[:to]
    if is_deleted_if.is_a?(Proc)
      send(o_set) == is_deleted_if.call
    elsif o_to.is_a?(Proc)
      # assume that a :to defined as a Proc is going to evaluate to a non-nil to indicate the model is null
      send(o_set) != nil
    else
      send(o_set) == o_to
    end
  else
    super
  end
end

#do_on_destroy ⇒ Object

if self.set then will use update_attributes! to set the self.set attribute to self.to or self.to.call if it is a Proc.



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# File 'lib/on_destroy/model.rb', line 27

def do_on_destroy
  if self.on_destroy_options
    o_set = self.on_destroy_options[:set]
    o_to = self.on_destroy_options[:to]
    if o_set
      update_attributes! o_set => (o_to.is_a?(Proc) ? o_to.call : o_to)
    end
    yield
  end
end

#really_destroy ⇒ Object

runs delete callback on :destroy



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# File 'lib/on_destroy/model.rb', line 50

def really_destroy
  run_callbacks(:destroy) {delete}
end