Question

我正在尝试从另一个应用程序的模型中获取当前应用程序中的外键。这就是model.py的样子。

class DataQuestion(models.Model):
    ...
    PollF = models.ForeignKey('myapp2.PollF')

如果我尝试在tasypie中使用它，我会得到null值。这就是我api.py的样子。

from myapp2.models import DataQuestion

class HelperSurveyResource(ModelResource):
    class Meta:
        queryset = DataQuestion.objects.all()
        resource_name='some_name'
        ...
    def dehydrate(self,bundle):
        bundle.data['complete']=True if(bundle.obj.isPComplete) else False
        return bundle

class QnResource(ModelResource):
    pollF=fields.ForeignKey(HelperSurveyResource,'some_name',full=True,null=True)

class Meta:
    queryset=DataQuestion.objects.all()

这是我得到的结果：

{"pollF": null,
"numAnswers": 1,
....
"text": "How much do you earn per day?"},

如何获取非空值？有帮助吗？感谢

--------- --------- EDIT 问题在IRC上得到了解决。非常感谢Funkybob错误是'some_name'应该是pollF。

Answer 1

对于Jure C.这是答案：

from myapp2.models import DataQuestion

class HelperSurveyResource(ModelResource):
    class Meta:
        queryset = DataQuestion.objects.all()
        resource_name='some_name'
        ...
    def dehydrate(self,bundle):
        bundle.data['complete']=True if(bundle.obj.isPComplete) else False
        return bundle

此处发生更改 - ＆gt; to PollF它应该是要搜索的属性的名称。我不知道这个

class QnResource(ModelResource):
    pollF=fields.ForeignKey(HelperSurveyResource,'pollF',full=True,null=True)

class Meta:
    queryset=DataQuestion.objects.all()

django tastypie foreignkey在不同的django应用程序中

1 个答案: