[Django]-POST multiple objects in one TastyPie API request

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0đź‘Ť

âś…

If the game resource look like:

class GameResource(ModelResource):
    activities = fields.ToManyField(ActivityResource, 'activities', full=True)

Following the note in tastypie documentation:

Tastypie encourages “round-trippable” data, which means the data you can GET should be able to be POST/PUT’d back to recreate the same object.
If you’re ever in question about what you should send, do a GET on another object & see what Tastypie thinks it should look like.

You will be able to create all in one batch.

👤UnLiMiTeD

3đź‘Ť

use related name for the fields which accepts the creation of related objects

http://django-tastypie.readthedocs.org/en/v0.10.0/fields.html#tastypie.fields.RelatedField.related_name

RelatedField.related_name

Used to help automatically populate reverse relations when creating data. Defaults to None.

In order for this option to work correctly, there must be a field on the other Resource with this as an attribute/instance_name. Usually this just means adding a reflecting ToOneField pointing back.

Example: 

class EntryResource(ModelResource): authors = fields.ToManyField('path.to.api.resources.AuthorResource', 'author_set', related_name='entry')

    class Meta:
        queryset = Entry.objects.all()
        resource_name = 'entry'

class AuthorResource(ModelResource):
    entry = fields.ToOneField(EntryResource, 'entry')

class Meta:
    queryset = Author.objects.all()
    resource_name = 'author'

Use of related_name do the task. it maps the objects of related fields and automatically populates the relations when creating data.

👤Sarfraz Ahmad

2đź‘Ť

See the documentation section entitled Bulk Operations. It begins:

As an optimization, it is possible to do many creations, updates, and deletions to a collection in a single request by sending a PATCH to the list endpoint.

And here’s their example:

curl --dump-header - -H "Content-Type: application/json" -X PATCH --data '{"objects": [{"body": "Surprise! Another post!.", "pub_date": "2012-02-16T00:46:38", "slug": "yet-another-post", "title": "Yet Another Post"}], "deleted_objects": ["http://localhost:8000/api/v1/entry/4/"]}'  http://localhost:8000/api/v1/entry/
👤Jonathan Potter

0đź‘Ť

You can create resource for activity and use fields.ToManyField:
https://django-tastypie.readthedocs.org/en/latest/resources.html#reverse-relationships

This will add urls to activity resources. To fully inline data for activities just pass (full=True, full_list=True) as arguments to ToManyField:
https://django-tastypie.readthedocs.org/en/latest/fields.html#tastypie.fields.RelatedField.full_list

👤imposeren

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