Re: Having issue sending email when model is save and not updated.

Hi,

Use Django signals presave and postsave.

Regards,

Sunil H N

sunil.kannada@gmail.com

-sent from MacBook Air

On 31-Mar-2020, at 01:48, Isaac Imafidon <isaac.imafidon69@gmail.com> wrote:

Am working on an ecommerce project and i want to be able to do two things before the model save .

1) I want to update the cost of an item

2) I want to send two  email to the receiver . One when the object just gets created while the other when the object gets updated.

I go through django documentation about pre_save signal and post_save signal but don't really understand it.

This is my model

 
class Item(models.Model):
    # set of possible order statuses
    ITEM_STATUSES = (('PICK UP','PICK UP'), #default
        ('IN TRANSIT','IN TRANSIT'), # To let ur customer know their order is now been process
        ('DELIVERED','DELIVERED'),#Now delivered to them

        )
    cost = models.DecimalField(max_digits=10, decimal_places=2)
    sender_name = models.CharField(max_length=150)
    sender_email = models.EmailField()
    receiver_name = models.CharField(max_length=150)
    receiver_email = models.EmailField()

Before this model is save i want to update the cost by adding 10% of the cost variable to create a new cost that will be shown in the view also i want to send email to receiver_email  variable. Once the user update the model i want to still add my 10% to the cost and instead of sending email one, i will send email two.

Something like this

....Model as before

if just_created :

   update the cost by 10% before save to the database

   send email 1 carrying the new cost variable and the receiver name to receiver email

   then save()

else:

   update the cost by 10% before saving to the database

   send email 2 carrying the new cost variable and the receiver name to receiver email

   then save()

Please guys i really need your help in this.

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