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Excessive Nulls

Description

This check identifies non-text fields with null=True. Allowing null values for non-text fields can lead to inconsistent data and complicate handling of missing values. It recommends removing null=True for fields where null values are not expected or necessary.

Rationale

Using null=True excessively for non-text fields can introduce unnecessary complexity when handling missing values. Ensuring that only fields that require null values have null=True can lead to cleaner data and simpler code.

Example

Consider the following model:

from django.db import models

class MyModel(models.Model):
    start_date = models.DateField(null=True)

The start_date field allows null values but might not need to. The check would detect this and recommend removing null=True if it's not necessary:

class MyModel(models.Model):
    start_date = models.DateField()

By removing null=True for fields where it's not required, you can simplify handling missing values and ensure data consistency.