always specify max_length for a Charfield

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Metadata

ID: python-django/model-charfield-max-length

Language: Python

Severity: Warning

Category: Best Practices

On a Charfield, define the attribute max_length to specify the maximum size of a field.

class Person(models.Model):
    first_name = models.CharField()  # define max_length
    last_name = models.CharField()  # define max_length

class Person(models.Model):
    first_name = models.CharField(max_length=20)
    last_name = models.CharField(max_length=40)

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rulesets:
  - python-django     # Rules to enforce Python django.

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