Python

Search

sum values in django models

sum_a = sum([item.column for item in queryset]) # Definitely takes more memory.
sum_b = queryset.aggregate(Sum('column')).get('column__sum') # Takes about 20% more time.

Comment

sum values in django models and insert value in model field

# models.py
def total_amount_spent(self):
    temp_values = [int(user.amount_spent) for user in ExtendedProfile.objects.all()]
    return sum(temp_values)

Comment

PREVIOUS	NEXT

Code Example
Python :: np shuffle
Python :: django jalali date
Python :: how to output random letters in python
Python :: python write list to file
Python :: dropna for specific column pandas
Python :: pytest parametrize
Python :: swapping array location in python
Python :: sort the dictionary in python
Python :: minimum-number-of-steps-to-reduce-number-to-1
Python :: convert x unicode utf 8 bytes to u python
Python :: python mysqldb
Python :: What happens when you use the built-in function any() on a list?
Python :: python zip extract directory
Python :: python check if string is number reges
Python :: add whitespaces between char python
Python :: how to import file from a different location python
Python :: drop row pandas
Python :: count number of zeros in a number python
Python :: pyttsx3 install
Python :: declare numpy zeros matrix python
Python :: equal sides of an array python
Python :: How to find xpath by contained text
Python :: python print combinations of string
Python :: find order of characters python
Python :: new window selenium python
Python :: find by class bs4
Python :: rum system commands python
Python :: panda categorical data into numerica
Python :: remove duplicates python
Python :: shutil remove

Search

PYTHON

sum values in django models

sum values in django models and insert value in model field

ADD CONTENT