def add_to_component_subscribers(self, component_name):
    'Adds the user to the list of Blink component subscribers.'
    c = BlinkComponent.get_by_name(component_name)
    if c:
        if (not len(list_with_component(self.blink_components, c))):
            self.blink_components.append(c.key())
            return self.put()
    return None
Adds the user to the list of Blink component subscribers.
def add_to_component_subscribers(self, component_name):
    
    c = BlinkComponent.get_by_name(component_name)
    if c:
        if (not len(list_with_component(self.blink_components, c))):
            self.blink_components.append(c.key())
            return self.put()
    return None