Hello,
I've got a Django app which has over 200 migration steps.
To shorten its test loading time, I'm trying to erase all current
migrations and restart from scratch.
I deteted and re-created my app Postgres database.
I deleted all files (but __init__.py) in migrations directory.
I typed "python manage.py makemigrations --verbosity 3".
1. Latest makemigrations failed with:
File
"/home/perenip/venv-flexcore/lib/python3.7/site-packages/django/db/migrations/serializer.py",
line 339, in serializer_factory
"topics/migrations/#migration-serializing" % (value, get_docs_version())
ValueError: Cannot serialize: PosixPath('/var/www/vhosts/foo/vendorstatic')
There are some values Django cannot serialize into migration files.
For more, see
https://docs.djangoproject.com/en/3.1/topics/migrations/#migration-serializing
If I'm not mistaken, I couldn't read any reference to the Model/Field that
triggered the error.
Should we expect an explicit mention of the faulty statement/line ?
2. I edited a Model within models.py with:
class Firmware(models.Model):
#filepath = models.FilePathField(path=settings.VENDOR_STATIC_ROOT,
match=settings.FIRMWARE_REGEX, recursive=True)
filepath = models.CharField(max_length=64)
display_name = models.CharField(default='foobar', max_length=32,
help_text='Value as shown in HTTP User-Agent string')
def __str__(self):
return self.relative_path()
def relative_path(self):
return
str(pathlib.Path(self.filepath).relative_to(settings.VENDOR_STATIC_ROOT))
After changing from a PathFileField to a CharFiled as shown above, I could
successfully run makemigrations.
Doc [1] mentions Django can serialize "any Django field". Should it
serialize FilePathField ?
[1]
https://docs.djangoproject.com/en/3.1/topics/migrations/#migration-serializing
3. How to work around this with rewriting my app (and its tests) ?
Best regards
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