如何在 ModelResource django-import-export 中获取请求

Question

如何从django-import-export中ModelResource的方法queryset获取request.user？

class PeopleResource(ModelResource):
    class Meta:
       model = People
       exclude = ('id','agent', 'public_id', 'active')

    def dehydrate_placeA(self, people):
        ...
        ...

    def get_queryset(self):
        query = People.objects.filter( ..... request.user )
        return query

Answer 1

问题已解决。我忘记了我之前在我的视图中调用了people_resource.export()。现在更容易了，因为我只是在方法 export() 中传递了 variabel kwargs，并在模型 PeopleResource 中覆盖了 def export()。所以我的解决方案就在这里。

views.py

def export_excel(request):    
    ...
    people_resource = PeopleResource()
    dataset = people_resource.export(agent=request.user.agent,)
    ...

models.py

class PeopleResource(ModelResource):
    class Meta:
        model = People
        exclude = ('id','agent', 'public_id', 'active')
    ...
    ...

    def export(self, queryset=None, *args, **kwargs):
        queryset = People.objects.filter(agent=kwargs['agent'])
        return super(PeopleResource, self).export(queryset, *args, **kwargs)

Answer 2

我正在寻找类似的东西。我希望根据管理员中导出的请求将请求对象附加到 Resource 实例，以便我可以检查它并根据查询参数动态影响功能。如果您想根据用户动态更改它，这也将非常有用。它最终变得非常简单：

首先，subclass ModelResource class 并寻找新的 kwarg：

from import_export import resources

class RequestModelResource(resources.ModelResource):
    def __init__(self, *args, **kwargs):
        self.request = kwargs.pop('request', None)
        super(RequestModelResource, self).__init__(*args, **kwargs)

然后，在 import-export 中有一个相关的管理方法可以用来传递 kwargs。 See here。将此添加到继承自 import_export.admin.ImportExportModelAdmin:

的 ModelAdmin

class MyModelAdmin(ImportExportModelAdmin):
    resource_class = MyModelResource

    def get_resource_kwargs(self, request, *args, **kwargs):
        """ Passing request to resource obj to control exported fields dynamically """
        return {'request': request}

基本上就是这样。立即在继承自 RequestModelResource 的 Resource classes 中的任何位置使用请求。例如：

class MyModelResource(RequestModelResource):
    def get_export_fields(self):
        fields = super().get_fields()

        # Check self.request.user, self.request.GET, etc to impact logic
        # however you want!

        return fields

Answer 3

导出自定义数据对我来说是这样的：

from django.contrib import admin
from import_export.admin import ExportMixin
from import_export.resources import ModelResource
from jobs.models import Job

class JobResources(ModelResource):
    class Meta:
        model = Job
        fields = ('id', 'foo', 'bar')

class JobAdmin(ExportMixin, admin.ModelAdmin):
    resource_class = JobResources

    fieldsets = (...)

祝大家好运！

如何在 ModelResource django-import-export 中获取请求

How to get request in ModelResource django-import-export

python

django

python-3.x

django-import-export