how do i loop through fields of an object?

Question

I have a model like this, how can I loop through it and not have to type out company.id, company.name, etc?

class Company(models.Model):
    name = models.CharField(max_length=1000)
    website = models.CharField(max_length=1000)
    email = models.CharField(max_length=200)
    phone_number = models.CharField(max_length=100)
    city = models.CharField(max_length=1000)
    zip = models.IntegerField()
    state = models.CharField(max_length=1000)
    address = models.CharField(max_length=1000)
    address2 = models.CharField(max_length=1000)

possible duplicate of [Django - Iterate over model instance field names and values in template](http://stackoverflow.com/questions/2170228/django-iterate-over-model-instance-field-names-and-values-in-template) — miku, Apr 27 '12 at 15:52

randlet · Answer 1 · 2015-06-22T14:10:06.600

You can loop over all field names like so

for name in Company._meta.get_all_field_names():
    print name

this also works if you have a category instance:

c = Company(name="foo",website="bar",email="baz@qux.com",....,)
c.save()
for field in c._meta.get_all_field_names():
    print getattr(c, field, None)

Update for Django 1.8

Django 1.8 now has an official model Meta api and you can easily grab all the fields:

from django.contrib.auth.models import User
for field in User._meta.get_fields():
    print field

score 7 · Answer 2 · answered May 06 '14 at 11:05

7

Iteration in a view:

If you have an instance company of Company:

fields= company.__dict__
for field, value in fields.items():
    print field, value

answered May 06 '14 at 11:05

rom

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Excellent! How would I remove specific tuples from the dict_items list that `__dict__.items()` generates? – Mitsakos May 16 '18 at 16:29
the dict contains "internal only" fields, such as `_state` – GreenAsJade Dec 16 '22 at 04:50

score 5 · Accepted Answer · edited May 23 '17 at 12:18

5

First get them, then use a for loop or list comprehension.

edited May 23 '17 at 12:18

Community

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answered Apr 27 '12 at 15:54

Ignacio Vazquez-Abrams

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score 1 · Answer 4 · answered Apr 27 '12 at 16:20

this is a possible solution:

entity = Company.all().get()

for propname, prop in entity.properties().items():   
    print propname, prop.get_value_for_datastore(entity)

another one could be:

# this returns a dict with the property 
# name as key and the property val as its value
entity.__dict__.get('_entity')

how do i loop through fields of an object?

4 Answers4

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