thanks now but getting the following error
File "/home/tony/Documents/stockapp/stock/models.py" in save
128. self.total_price = self.calc_total_price()
File "/home/tony/Documents/stockapp/stock/models.py" in calc_total_price
124. amount_price = (self.estimated_total_weight * self.sale_kg)
have attached the code if you have time if not dont worry
def calc_estimated_total_weight(self):
amount = 0
if self.sale_head <= 0:
amount = (self.number * self.estimated_weight_hd)
return amount
def save(self):
self.estimated_total_weight = self.calc_estimated_total_weight()
super(SaleNote, self).save()
def calc_total_price(self):
amount_price = 0
if self.sale_head > 0:
amount_price = (self.number * self.sale_head)
return amount_price
else:
amount_price = (self.estimated_total_weight * self.sale_kg)
return amount_price
def save(self):
self.total_price = self.calc_total_price()
super(SaleNote, self).save()
def __unicode__(self):
return self.buyer
cheers
anthony
On Sun, Apr 6, 2014 at 3:20 PM, Jay Lozier <[email protected]> wrote:
>
> On 04/05/2014 11:08 PM, Anthony Smith wrote:
>
>> Hi
>>
>>
>>
>> I have a small project and I have been unable to get the following
>> statement to work. Any help would great.User inputs can either
>> self_sale_head which is a $ value,if a $ value is not add a
>> self.estimated_weight_hd is used to get the total weight, the code below
>> should return a estimated_weight_total which can be used for the total sale
>> price. All works when I add the estimated_weight_total manually. I am lost
>> as why.
>>
>> |def calc_estimated_weight_total(self):
>> if self.sale_head<= 0:
>> amount= (self.number* self.estimated_weight_hd)
>> return amount
>>
>> def save(self):
>> self.estimated_total_weight= self.calc_estimated_weight_total()
>> super(SaleNote, self).save()|
>>
>>
>>
>> Anthony,
>
> In your first function, when the if condition evaluates to False it not
> return anything.
>
> A possible version is:
>
> def calc_estimated_weight_total(self):
> if self.sale_head <= 0:
> amount = self.number * self.estimated_weight_hd
> else:
> amount = 0 # (or your default value or other code to calculate
> amount)
> return amount
>
> Another version
>
> def calc_estimated_weight_total(self):
> amount = 0
> if self.sale_head <= 0:
> amount = self.number * self.estimated_weight_hd
> return amount
>
> Both versions will return a value not matter whether the test condition
> evaluates to True or False. The second version assumes the default value is
> 0
>
> --
> Jay Lozier
> [email protected]
>
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