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divide by zero errors when using annotate

Trained Tuna answered on February 24, 2022 Popularity 1/10 Helpfulness 8/10

answer divide by zero errors when using annotate

divide by zero errors when using annotate

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# Use NullIf on the Denominator or Divisor
from django.db.models.functions.comparison import NullIf
from django.db.models import F, Avg, Value, FloatField, ExpressionWrapper

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()
    )
)

Popularity 1/10 Helpfulness 8/10 Language python

Source: Grepper

Tags: divide-by-zero python when

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Contributed on Feb 24 2022

Trained Tuna

0 Answers Avg Quality 2/10

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divide by zero errors when using annotate

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