Django的HVAD和ForeignKey的

Question

我有一个简单的应用程序：

class NamedModel(TranslatableModel): 
    code = models.CharField(max_length=120) 

    translations = TranslatedFields(
     name=models.CharField(max_length=256), 
     description=models.TextField() 
    ) 

    class Meta: 
     abstract = True 


class Product(NamedModel): 
    translations = TranslatedFields() 


class Report(TranslatableModel): 
    quantity = models.DecimalField(max_digits=20, decimal_places=6) 
    inv = models.ForeignKey(Inv) 
    translations = TranslatedFields(
     product=models.ForeignKey(Product) 
    ) 

，然后从壳我创造了一些实例：

product = Product.objects.language('en').create(name='asd', description='asd', code='asd') 

inv = Inv.objects.create(code='xxx') 

report = Report.objects.language('en').create(quantity=1, inv=inv, product=product) 

如果I型：LEN（Report.objects.language（ '恩'）所有（）），我得到1，但是当我尝试这样：

Report.objects.language('en').all() 

我得到：

NoTranslationError: Accessing a translated field requires that the instance has a translation loaded, or a valid translation in current language (None) loadable from the database 

你有什么建议吗？

Answer 1

您需要明确设置当前会话的活动语言。 请参阅Django文档"Explicitly setting the active language"

from django.utils import translation 

user_language = 'en' 
translation.activate(user_language)