Question

我有以下内容，当我尝试通过管理页面上传文档时，它会抛出错误。如何在使用内联？

时自动填充Document模型的entered_by字段

错误： / admin / myapp / proceeding / 6 /更改/的IntegrityError （1048，“列'entered_by_id'不能为空”）

# models.py
class Proceeding(models.model):
    date = models.DateField()
    entered_by = models.ForeignKey(User)

class Document(TimeStampedUserModel):
    proceeding = models.ForeignKey(Proceeding)
    document = models.FileField(upload_to='documents/')
    entered_by = models.ForeignKey(User)


#admin.py
class DocumentAdmin(admin.ModelAdmin):
    fields = ('proceeding', 'document', )
    list_display = ('proceeding', 'entered_by', )

    def save_model(self, request, obj, form, change):
        instance = form.save(commit=False)
        instance.entered_by = request.user
        instance.save()
        form.save_m2m()
        return instance
    def save_formset(self, request, form, formset, change):
        def set_user(instance):
            instance.entered_by = request.user
            instance.save()
        if formset.model == Document:
            instances = formset.save(commit=False)
            map(set_user, instances)
            formset.save_m2m()
            return instances
        else:
            return formset.save()

class DocumentInline(admin.TabularInline):
    model = Document
    fields = (
        'proceeding',
        'document',
    )
    extra = 0

class ProceedingAdmin(admin.ModelAdmin):
    inlines = [DocumentInline, ]
    fields = ('date',)
    list_display = ('date', 'entered_by',  )

    def save_model(self, request, obj, form, change):
        instance = form.save(commit=False)
        instance.entered_by = request.user
        instance.save()
        form.save_m2m()
        return instance
    def save_formset(self, request, form, formset, change):
        def set_user(instance):
            instance.entered_by = request.user
            instance.save()
        if formset.model == Proceeding:
            instances = formset.save(commit=False)
            map(set_user, instances)
            formset.save_m2m()
            return instances
        else:
            return formset.save()

Answer 1

commit=False的{{3}}显示了如何执行此操作。使用entered_by保存formset，然后遍历实例并将request.user字段设置为class ProceedingAdmin(admin.ModelAdmin): ... def save_formset(self, request, form, formset, change): instances = formset.save(commit=False) for obj in formset.deleted_objects: obj.delete() for instance in instances: instance.entered_by = request.user instance.save() formset.save_m2m()。

DocumentAdmin

请注意，您的save_formset不需要session_name("examplecom_session"); session_set_cookie_params(0, '/', '.example.com'); session_start();方法，因为它没有任何内联。

Django admin - 通过内联自动将当前用户保存到模型中？

1 个答案: