#29745: Argument based equality check of BaseExpression causes unstable
migration
state
-------------------------------------+-------------------------------------
Reporter: bacilla | Owner: Simon
| Charette
Type: Bug | Status: assigned
Component: Migrations | Version: 2.0
Severity: Normal | Resolution:
Keywords: migration meta | Triage Stage: Accepted
ordering expression |
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Simon Charette):
@bacilla by the way a less invasive workaround is to pass
`Cast(output_field)` as a keyword argument instead of a positional one.
{{{#!python
class TestEntity(models.Model):
some_property = models.TextField()
class Meta:
ordering = (
Cast(models.Func(models.F('some_property'),
models.Value('^\d+'), function='SUBSTRING'),
output_field=models.IntegerField()),
Right(Concat(models.Value('00000'),
models.F('some_property')), models.Value(5))
)
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/29745#comment:7>
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