title: Is possible to restart server after adding an item into a tuple of tuples in Django?
body: <p>I have these empty lists of tuples (DOC and COURSE) and when a product is saved, later is added into his specific list</p>
  
  <pre><code>CATEGORY = (
      ('DOC','DOCUMENTAZIONE'),
      ('COURSE','CORSO'),
  )
  
  class Product(BaseModel):
  
      class Meta:
          verbose_name=_('Prodotto')
          verbose_name_plural=_('Prodotti')
  
      name = models.CharField(_("Nome Prodotto"),max_length=1024, blank = False, null=True)
      category = models.CharField(_("Categoria"),max_length=1024, blank = False, null=True,choices=CATEGORY)
  
  
      def __unicode__(self):
          return self.name
  
  DOC = ()
  COURSE = ()
  
  try:
      for product in Product.objects.all():
          if product.category == 'DOC':
              DOC = DOC + ((str(product.id), str(product.name.encode('utf-8'))),)
          if product.category == 'COURSE':
              COURSE = COURSE + ((str(product.id), str(product.name.encode('utf-8'))),)
  except Exception as e:
      print e
      pass
  
  class ProductOfferDoc(BaseModel):
      class Meta:
          verbose_name = _("Documentazione")
          verbose_name_plural = _("Documentazioni")
  
      product = models.CharField(max_length=1024, blank=False,null=False, choices=DOC)
      number = models.IntegerField(_('Num.'), default=0, blank=True, null=True)
      price = models.DecimalField(_('Prezzo'),max_digits=10, decimal_places=2,default=0.00,blank=True, null=True )
      offer = models.ForeignKey(Offer, related_name='related_doc')
  
      def __unicode__(self):
          return self.product
  
  class ProductOfferCourse(BaseModel):
  
      class Meta:
          verbose_name = _("Corso")
          verbose_name_plural = _("Corsi")
  
      product = models.CharField(max_length=1024, blank=False,null=False, choices=COURSE)
      number = models.IntegerField(_('Num.'), default=0, blank=True, null=True)
      price = models.DecimalField(_('Prezzo'),max_digits=10, decimal_places=2,default=0.00,blank=True, null=True )
      offer = models.ForeignKey(Offer, related_name='related_course')
  
      def __unicode__(self):
          return self.product
  </code></pre>
  
  <p>My problem is that i need to display avaible products, but the new product just added doesn't appear until i restart the server.
  There is another way to do the same thing? Or exist a function to restart the server automatically when a product is added?</p>