#22959: Document that custom validator must be comparable to prevent infinite
migrations
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Reporter: lorinkoz@… | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Documentation | Version: 1.7-rc-1
Severity: Normal | Resolution:
Keywords: migrations | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by areski):
I have been trying to reproduce this problem without luck!
Could you share a code sample where this could be reproduced?
This is how I tried to reproduce it:
{{{
from django.db import models
from django.core.exceptions import ValidationError
def validate_textlimit20chars(value):
if len(value) > 20:
raise ValidationError('%s is not an even number' % value)
class MyModel(models.Model):
name = models.CharField(max_length=32)
text20_field = models.TextField(default="",
validators=[validate_textlimit20chars])
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/22959#comment:2>
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