django convert model instance to dict
django, django-models
Solution
This actually already exists in Django, but its not widely documented.
from django.forms import model_to_dict
my_obj = User.objects.first()
model_to_dict(my_obj,
fields = [...], # fields to include
exclude = [...], # fields to exclude
)
Problem
I am a beginner in Django. And I need to convert Model instance in to dictionary similar as Model.objects.values do, with relation fields. So I write a little function to do this: ``` def _get_proper(instance, field): if field.__contains__("__"): inst_name = field.split("__")[0] new_inst = getattr(instance, inst_name) next_field = "__".join(field.split("__")[1:]) value = _get_proper(new_inst, next_field) else: value = getattr(instance, field) return value def instance_to_dict(instance, fields): return {key: _get_proper(instance, key) for key in fields} ``` So, i can use it in such way: ``` user_obj = User.objects.select_related(...).get(...) print instance_to_dict(user_obj, ["name", "city__name", "city_id"]) ``` May you propose the better solution? Thanks! P.S. Sorry for my English.