#django

I’ve got a model whose `save()` method doesn’t write to the database, but makes a rest API call

but, through that save, I would love to add ValidationErrors if the API call fails, and tie those to the specific fields that failed

Looking at the source, I don’t think (for example) the admin lets me do this (since, is_valid() is separate from save(); and through the API, I Don’t have any analog for is_valid())

but is there any analog for clean error handling via modelforms or some such?

I guess I should try this out before asking too many questions but I like picking other smart people’s brains before heading into those weeds :D this is a fairly unique use-case but I figure Django probably has some nice in-roads for making this happen

if it's a django ORM model I'd avoid contorting save() like that

but hm, who knows.

jessamynsmith: my issue is most weirdest i had ever in my life. i've rolledback repository to like 20 commits, and this exception is still there. i mean at least tests did work back then. i've even create droplet on digital ocean.. and every singe commit gives me this exception.. all versions of python packages are freezed .. this is only due to depedency.. ijust can't see any other reason

ugh

holms: it's closed-source?

jessamynsmith: yeah, but doesn't at this time, i can give you a shell lol

*thinking*

what I really want to do is debug it

i'd be deadly grateful to you.. because my head is blowing up. and yeah we have some packages directly from git without versions.. that might be a case

tmux session is waiting for you all i need is a ssh key

holms: -> dm

Hey guys, I'm using the User class from django.contrib.auth.models as a foreign key in one of my models. What is the best way to pass the username of that key to the DRF serializers to get it to show me the username? Currently I get the PK ID #

do you want only username? or username and id?

Only username

I figured I could just put def __unicode__(self): in the User model, but I don't want to edit that model if I can help it

There isn't a way to get username without doing a query into user

DRF can give you user id from your related model - that's what is in the db

Does the default auth model require username to be unique? If so I could just store the username instead.

but to get to username, it has to actually query user

I would just add select_related('user') to your related querysets and then have a serializer model field that is obj.user.username

wat

cnk: this is my serializer right now. https://dpaste.de/P4Uq

author is a user object

hello guys, Im trying out django-oscar on windows and I am having an error when I run the make sandbox. https://dpaste.de/R56w can anyone help ? Thanks

so at line 3: author = SerializerMethodField()

then make a method called get_author that returns author.username

but be warned, that will do n+1 queries for your recipe list endpoint

so you will need to make sure that your recipes queryset has select_related('author') so the author objects are selected along with the recipies

cnk: I think this works better? https://dpaste.de/UKuC

at least it seems like less code to me

1) does it work and 2) you still need select_related and 3) definiing a class is just as much code as creating the method

but whatever, you still need select_related

Serializers.RelatedField does that automatically I think

at least, it's working for me

are you logging your queries

you are getting the data - but I bet doing 2 queries to get it - one to recipies and one to users

OK outta here

I think I'm misunderstanding the `choices` attr in CharField. I'd like my template to output the 'label' text as in described here: http://dpaste.com/0AE9KGF

themediator : this is what you're looking for http://www.django-rest-framework.org/api-guide/...