django , list of models to list of string

Question

I have a list of model objects:

just an example (I'm not really doing a list of all()):

class Tag(models.Model):
    name = models.CharField(max_length=50,primary_key=True)
    #Some other fields....

    def __str__(self):
        return self.name

mylist = list(Tag.objects.all())

What's the best way of converting this to a list of strings ?
Do I have to iterate the list ?

I was doing something like:

newList = [ t.str() for t in mylist ]

Any better way ?

I think that if you really need a list of strings your code is fine. The question is, do you really need to convert to string? Remember that the templates user your __str__ or __unicode__ method so you do not need to pass them strings. You could also do [x.name for x in mylist], that may be a little faster. — Facundo Casco
– Facundo Casco, Commented May 4, 2011 at 21:41
It's not for a template... I'm getting a list of items with a complex query. then i need to get one of the fields as string and pass that list to another query — Yochai Timmer
– Yochai Timmer, Commented May 5, 2011 at 4:41

S.Lott · Accepted Answer · 2011-05-04 18:12:55Z

3

This

newList = [ str(t) for t in mylist ]

or

newList = map( str, myList )

But generally, we don't bother. We just leave it to the template to convert the query set into strings when the template is rendered.

edited May 4, 2011 at 18:12

answered May 4, 2011 at 18:06

S.Lott

393k83 gold badges520 silver badges791 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Yochai Timmer Over a year ago

How do you render it in the template ?

S.Lott Over a year ago

The usual way: {% for item in the list %}{{item}}{% endfor %} The items are automatically converted to strings in the template. You should see this: docs.djangoproject.com/en/1.3/ref/templates/api

Collectives™ on Stack Overflow

django , list of models to list of string

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related