[Answered ]-Name 'field_name' is not defined error while querying the db

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It makes no sense to say filter(field_name): a filter means that a field is the same, less than, contains, etc. some value, or the value of some other field.

You can for example filter with:

MyModel.objects.filter(field_name=some_value)

or check if it is not null with:

MyModel.objects.filter(field_name__isnull=False)

if field_name is a ForeignKey, we will thus only retain MyModels where the ForeignKey does not point to None/NULL.

👤willeM_ Van Onsem

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