[英]Django readonly_fields not showing data
My Orders
model has a rate
and total_amount
field.我的
Orders
model 有一个rate
和total_amount
字段。 I had to derive the rate from the different models so I created unit_rate
.我必须从不同的模型中得出速率,所以我创建了
unit_rate
。
Similarly, I wanted my total_amount
fields to be a multiplication of quantity
and unit_rate
, which I tried by doing total_pay
.同样,我希望我的
total_amount
字段是quantity
和unit_rate
的乘积,我通过执行total_pay
进行了尝试。
Here is my code:这是我的代码:
class OrderAdmin(admin.ModelAdmin):
def unit_rate(self,obj):
self.rate = Product.objects.get(pk=obj.order_id)
return self.rate.price
def total_pay(self,obj):
self.rate = Product.objects.get(pk=obj.order_id)
self.total_amount = self.rate.price * obj.quantity
return self.total_amount
list_display = ('order_id', 'order_item', 'order_status', 'delivery_address', 'customer',
'quantity','unit_rate','total_pay')
readonly_fields = ('total_pay','unite_rate')
admin.site.register(Orders,OrderAdmin)
As total_pay
and unit_rate
are obtained from other columns, the admin doesn't need to enter them.由于
total_pay
和unit_rate
是从其他列中获取的,因此管理员无需输入它们。 That's why I kept them on readonly_fields
.这就是我将它们保留在
readonly_fields
上的原因。
The problem is that, whenever it creates an order through the admin interface, total_pay
and unit_rate
do not show up in the admin.问题是,每当它通过管理界面创建订单时,
total_pay
和unit_rate
不会显示在管理中。 It just shows a dash like this: -
.它只显示这样的破折号:
-
。
It has been doing this for a while, so I could really use your help.它已经这样做了一段时间,所以我真的可以使用你的帮助。 Thanks.
谢谢。
Actually digging little bit more for hours i found the solution.实际上挖掘了几个小时我找到了解决方案。
class OrderAdmin(admin.ModelAdmin):
list_display = ('order_id', 'order_item', 'order_status', 'delivery_address', 'customer',
'quantity','unit_rate','total_pay')
def unit_rate(self,obj):
rate = Product.objects.get(pk=obj.order_item.product_id)
return rate.price
def total_pay(self,obj):
rate = Product.objects.get(pk=obj.order_item.product_id)
total_amount = rate.price * obj.quantity
return total_amount
admin.site.register(Orders,OrderAdmin)
Actually i did not know how to pass product_id
along with order_item
.实际上我不知道如何将
product_id
与order_item
一起传递。 and i think even documentation is also does not help much.而且我认为即使是文档也无济于事。
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