email - django sending mail using pre_save -

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1. Déggens is a part of learning, I'm trying to send an email to the email id using the pre_save signal.

2. Mail should be sent to an email ID which is mentioned in the field. I have no proper way of using signals. Here I am models.py and views.py. 

  views.py def addbook (): form = BookForm if request.POST: form = BookForm (request.POST) if form.is_valid (): cd = form.cleaned_data form.save ( ) Return Redirects   
 products.py     pre>  class book (models.Model): Book_id = models.AutoField (primary_key = true, unique = true) book_name = models.CharField (max_length = 30) author_name = models.CharField (max_length = 30) publisher_name = model .CharField (max_length = 40) email = models.EmailField ( ) Bookref = models.CharField (max_length = 10) square meta: db_table = u'book 'def __unicode __ (self): return "% d% s% s% s% S"% (self.book_id, self.book_name, Self.author_name, self.publisher_name, self.email, self.bookref)   
 My requirement is an email that automatically ID  
 
 
 Under book model, create signals function.  
  class book (model model): [....... ...] def send_update (sender, example, created, ** kwargs): if example. Auth_name: message = "Book has been updated" topic = "update" send_mail (subject, message, your_email, [instance.email,]) Post_save.connect (send_update, sender = book)   < / Div>

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