django pass field-name as variable in get_or_create

Question

I am trying to see if I can pass field name as a variable in get_or_create (since I have a function where the key in the kwargs can vary)

Like so:

def convert_value(cell_value, field_to_lookup):
        rem_obj, created = Rem.objects.get_or_create(field_to_lookup=cell_value)
        print ('created? ',created)
        return rem_obj

The above wont work since it would look for 'field_to_lookup' as the key.

This post suggests using getattr but not sure if that'll be applicable in this case since I will again need to assign the output to a variable

score 2 · Accepted Answer · edited May 23 '17 at 11:47

2

This post helped. Now passing the field-value pair as dict which allows passing variables for field names. Here's the code:

def convert_value(cell_value, field_to_lookup):
        rem_obj, created = Rem.objects.get_or_create(**{field_to_lookup:cell_value})
        print ('created? ',created)
        return rem_obj

Alternatively, I could directly just pass the dict to the function.

edited May 23 '17 at 11:47

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answered Apr 03 '17 at 07:27

Anupam

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Nope, that's the obvious canonical solution. – bruno desthuilliers Apr 03 '17 at 07:58

django pass field-name as variable in get_or_create

1 Answers1