下拉式Django中dict的值

debugcn 发表于 Dev

Veraliesim

我的models.py如下：

class SellerMarketplaces(models.Model):
id = models.IntegerField(db_column='ID',primary_key=True)  # Field name made lowercase.
seller_id = models.ForeignKey('Sellerdetails',db_column='Seller_ID')  # Field name made lowercase.
mk_id = models.ForeignKey('Marketplace',db_column='Mk_ID')  # Field name made lowercase.
username = models.CharField(db_column='Username', max_length=100, blank=True, null=True)

我的视图中包含以下代码

def marketplaces(request):  

seller = request.GET.get('seller', '')
allmarketplaces = SellerMarketplaces.objects.filter(seller_id = seller).values('mk_id__marketplace')
print allmarketplaces

通过它我得到以下输出：

[{'mk_id__marketplace': u'Flipkart'}, {'mk_id__marketplace': u'Snapdeal'}]

我想在下拉列表中显示值，例如Flipkart和Snapdeal，但在编写时无法访问这些值

print allmarketplaces.values()

给我

 [{'username': u'[email protected]', u'seller_id_id': 1L, u'mk_id_id': 1L, 'id': 1L}, {'username': u'[email protected]', u'seller_id_id': 1L, u'mk_id_id': 2L, 'id': 2L}]

如何访问值（Flipkart和Snapdeal）？

性能下降

您正在寻找values_list：

>>> allmarketplaces = SellerMarketplaces.objects.filter(seller_id=seller).values_list('mk_id__marketplace', flat=True)
>>> print allmarketplaces
['Flipkart', 'Snapdeal']

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