import json
from myapp.models import MyModel
x = json.dumps(MyModel.objects.values_list('myField', flat=True)) # "[] is
not JSON serializable"
x = json.dumps([x for x in MyModel.objects.values_list('myField', flat=True
)]) #ok
####
It seems that the database is accessed only if the result of
objects.filter()/all()/values_list()/... is printed/iterated/... .
It's fine, but I think the methods of model manager like
filter()/all()/values_list() should behave as if it is processing python
objects. I have not yet digged into json module, but it did penetrated
django's disguise.
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