Python

Search

django expressionwrapper example

from django.db.models import F, Avg, Value, FloatField, ExpressionWrapper
from django.db.models.functions.comparison import NullIf

context['stock_margin'] = context['top_stock'].annotate(
    Avg_purchase = ExpressionWrapper(
        F('total_puchase') / NullIf(F('quantity_purchase'), 0),
        output_field=FloatField()
    ),
    Avg_sales = ExpressionWrapper(
        F('total') / NullIf(F('quantity'), 0),
        output_field=FloatField()
    )
)

Comment

PREVIOUS	NEXT

Code Example
Python :: python game over screen
Python :: schedule asyncio python
Python :: python loop certain number of times
Python :: how to get user ip in python
Python :: create a vector of zeros in r
Python :: python get everything between two characters
Python :: kill turtle
Python :: pygame.set_volume(2.0) max volume
Python :: python datetime subtract seconds
Python :: python selenium assert presence of an element
Python :: How to Create a Pie Chart in Seaborn
Python :: python sort 2d list
Python :: skip rows in pandas read excel
Python :: values of unique from dataframe with count
Python :: python datetime into 12-hour format
Python :: how to get width of an object in pyqt5
Python :: python async threading
Python :: python convert hex to binary
Python :: import a txt file into python
Python :: multivariate outlier detection python
Python :: python filter a dictionary
Python :: how to subtract dates in python
Python :: for loop with zip and enumerate
Python :: numpy print options
Python :: how to print all combinations of a string in python
Python :: pandas reorder columns
Python :: python thread with parameters
Python :: delete the duplicates in python
Python :: pandas how to start read csv at a certain row
Python :: use of // in python

Search

PYTHON

django expressionwrapper example

ADD CONTENT