I wanted to create an Invoice for clients orders, i wanted to be able to do 
all the calculations of the costs of their services as I enter values into 
the database. But I kinda found a way around this coz it was giving me a 
headache, so i decided to calculate the total in the controller like i did 
on the variable pricing below:

def viewInvoices():
    invoice=db.ClientDetails(request.args(0, cast=int))
    
*pricing=db(db.invoice.customer==invoice.id).select(db.invoice.totalPrice.sum().with_alias('total'))*
    return locals()
This kinda gave me  a solution to what i was trying achieve.


On Monday, November 12, 2018 at 6:19:54 PM UTC+2, Leonel Câmara wrote:
>
> You can either use after_insert to put the value in the Total of all rows 
> or you can use a Virtual field or Method.
>
> May I ask what you're trying to do?
>

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