Question

我使用了PurchaseInfo.objects.filter(user=request.user).values()，并希望在模板中显示结果。但是，我收到此错误消息：

FieldError at /auth/purchaseHistory/


Cannot resolve keyword 'user' into field. Choices are: id, product_name, product_price, purchase_addr, purchase_date, purchase_id, purchase_id_id, purchase_name, purchase_phone

purchaseinfo / models.py

class PurchaseInfo(models.Model):
    purchase_id = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    purchase_name = models.CharField(max_length=30)
    purchase_addr = models.CharField(max_length=100)
    purchase_phone = models.CharField(max_length=15)
    ...and so on

customlogin / views.py

from purchaseinfo.models import PurchaseInfo
def purchaseHistory(request):
    history = PurchaseInfo.objects.filter(user=request.user).values()
    return render(request,'customlogin/purchaseHistory.html',{'history':history})

purchaseHistory.html

{% for i in history %}
<tr>
    <td>{{i.purchase_id}}</td>
    <td>{{i.purchase_name}}</td>
    <td>{{i.purchase_addr}}</td>
    <td>{{i.purchase_phone}}</td>
    <td>{{i.product_name}}</td>
    <td>{{i.product_price}}</td>
    <td>{{i.purchase_date}}</td>
</tr>
{% endfor %}

我该如何解决这个问题？

Answer 1

对此进行更新：

history = PurchaseInfo.objects.filter(purchase_id=request.user).values()

在模型中，与用户模型的外键关系为purchase_id，但是在视图中，您尝试按user进行过滤。您需要按purchase_id进行过滤。
大多数情况下，错误消息会很好地说明问题，请尝试理解问题的根源并尝试自行解决。调试是一项不错的技能。

如何在Django模板中使用objects.filter（user = request.user）？

1 个答案: