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Tastypie does not remove link to foreign link during PUT

I had a problem with Tastypie not saving changes to my object when I do a PUT that causes the foreignkey field to be null.

Here is my ModelResource:

class FolderResource(ModelResource): parent = fields.ForeignKey('self','parent',full=True,default=None,blank=True,null=True) project = fields.ForeignKey(ProjectResource,'project',full=False) class Meta: queryset = Folder.objects.all() authentication = Authentication() authorization = Authorization() resource_name = 'folder' include_absolute_url = True always_return_data = True filtering = { "slug": ('exact', 'startswith',), "name": ALL, "project":ALL_WITH_RELATIONS, "parent":ALL_WITH_RELATIONS, "id":('exact') }

I have an existing folder object with the following data:

 { absolute_url: "/projects/1/files/5/", created_date: "13 Feb 2012", id: "5", modified_date: "15 Feb 2012", modified_file: null, name: "testfolder2", parent: { absolute_url: "/projects/1/files/1/", created_date: "4 Feb 2012", id: "1", modified_date: "15 Feb 2012", modified_file: null, name: "testfolder1", parent: null, project: "/projects/api/v1/project/1/", removed_date: null, resource_uri: "/projects/api/v1/folder/1/", slug: "testfolder1" }, project: "/projects/api/v1/project/1/", removed_date: null, resource_uri: "/projects/api/v1/folder/5/", slug: "testfolder2" }

I will try to output the following data to '/ projects / api / v1 / folder / 5 /':

 { parent: null }

I get no errors, everything seems fine, but nothing is stored in the database. Can someone tell me what I am doing wrong or why the change is not saved?

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1 answer

If you want to perform a partial upgrade, you will need the PATCH method.

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Source: https://habr.com/ru/post/910661/

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