'Is there any way to alter the url of a FileField in Django?

FileField objects have a url attribute. How do I alter it? The docs say it is read-only. Is there even a way to alter the underlying storage class? I am working with a migrated database and can't get the urls of the old directory structure to apply the new deployment. The MEDIA_ROOT is set fine, upload_to is being used in models, so new objects get saved correctly, but old ones are expected to be in the MEDIA_ROOT by the application, which is not the case.

python django

Solution 1:^[1]

From your model get all instance and change the name attribute. For example in your model you ave a Many-to-many relationships to a document.

class Document(models.Model):
    doc_file = models.FileField(upload_to=upload_path, max_length=500)
    
class Repository(models.Model):
   documents = models.ManyToManyField(Document)

...

for doc in Repository.documents.all():
    doc.doc_file.name = new_full_path
    doc.save()

Another way is use Query Expressions

Repository.document.all().update(
    documents =Func(
        F('documents'),
        Value(old_path), Value(new_path),
        function='replace'
    )
)

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Solution 1	Cristian Festi

'Is there any way to alter the url of a FileField in Django?

Solution 1:[1]

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Related Questions

Solution 1:^[1]