Hi All,

I'm trying to dump the contents of a table which is the mapping for a
many-to-many field.

The table is called Part and it has a ManytoManyField called
category_id.

When I run python manage.py dumpdata store.part_category_id >
file.json

I get the error Error: Unable to serialize database: Category matching
query does not exist.

I have validated that all values in the table are valid.

The table is defined as follows --> id: integer PRIMARY KEY
unipart_id: integer category_id: integer

Also, when I run dumpdata on the table (python manage.py dumpdata
store.part > file.json), the data is dumped without an error message
but the category_id field is consistently empty in the output.

Any thoughts on what I'm doing wrong?

Thanks,
Natasha

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