AttributeError:“非类型”对象没有属性“\u meta”Django
我是个新手 我想更改所选数据food_status并将其保存到selected column food_status column。但它显示了一个错误 对于self.\u meta.concrete\u字段中的字段: AttributeError:“非类型”对象没有属性“\u meta” 在这部分 OrderItem.savefood_状态,更新_字段=['food_状态'] models.pyAttributeError:“非类型”对象没有属性“\u meta”Django,django,meta,nonetype,Django,Meta,Nonetype,我是个新手 我想更改所选数据food_status并将其保存到selected column food_status column。但它显示了一个错误 对于self.\u meta.concrete\u字段中的字段: AttributeError:“非类型”对象没有属性“\u meta” 在这部分 OrderItem.savefood_状态,更新_字段=['food_状态'] models.py class OrderItem(models.Model): Table_No = mode
class OrderItem(models.Model):
Table_No = models.IntegerField(blank=False)
FoodId = models.TextField()
Item = models.TextField()
Qty = models.IntegerField(blank=False)
Price = models.TextField()
Note = models.TextField(max_length=100, null=True)
OrderId = models.TextField(max_length=100, null=True)
FoodStatus = (
('1', 'Has been ordered'),
('2', 'cooked'),
('3', 'ready to be served'),
('4', 'done'),
)
food_status = models.CharField(max_length=50, choices=FoodStatus,
default="has been ordered")
views.py
def kitchen_view(request):
chef_view = OrderItem.objects.all()
if request.method == "POST":
food_status = request.POST.get("food_status")
OrderItem.food_status = food_status
OrderItem.save(food_status, update_fields=['food_status'])
return render(request, 'restaurants/kitchen_page.html', {'chef_view':chef_view})
厨房页面.html
<form action="#" method="post">
{% csrf_token %}
{% for order in chef_view %}
<table width="800">
<tr>
<th width="800">Table Number</th>
<th width="800">Item</th>
<th width="800">Quantity</th>
<th width="800">Price</th>
<th width="800">Note</th>
<th width="800">Order Id</th>
<th width="800">Status</th>
</tr>
<tr>
<td width="800">{{ order.Table_No }}</td>
<td width="800">{{ order.Item }}</td>
<td width="800">{{ order.Qty }}</td>
<td width="800">{{ order.Price }}</td>
<td width="800">{{ order.Note }}</td>
<td width="800">{{ order.OrderId }}</td>
<td width="800">{{ order.Status }}
<button type="button" class="close" data-dismiss="modal" aria-
label="Close"><span class="glyphicon glyphicon-pencil" aria-
hidden="true">×</span></button>
<select>
<option name="food_status" id="1" value="None">Has been
ordered</option>
<option name="food_status" id="2"
value="Cooked">Cooked</option>
<option name="food_status" id="3" value="Ready to be
served">Ready to be served</option>
<option name="food_status" id="4"
value="Done">Done</option>
</select>
<a href='' button onclick="myFunction()"><input
type="submit" value="Change Status"></button>
</td>
</tr>
</table>
{% endfor %}
</form>
代码应该根据html中的select选项将食物状态保存到食物状态数据库列
有人能帮我吗?非常感谢您已经差不多拿到了,只是顺序不对。无法执行OrderItem.food\u状态=。。。在创建OrderItem实例之前。例如,这将起作用:
order_item = OrderItem()
order_item.food_status = food_status
order_item.save()
请尝试使用以下更完整的选项:
def kitchen_view(request):
chef_view = OrderItem.objects.all()
if request.method == "POST":
food_status = request.POST.get("food_status")
order_item = OrderItem(food_status=food_status)
order_item.save()
return render(request, 'restaurants/kitchen_page.html', {'chef_view':chef_view})
你差不多拿到了,只是顺序不对。无法执行OrderItem.food\u状态=。。。在创建OrderItem实例之前。例如,这将起作用:
order_item = OrderItem()
order_item.food_status = food_status
order_item.save()
请尝试使用以下更完整的选项:
def kitchen_view(request):
chef_view = OrderItem.objects.all()
if request.method == "POST":
food_status = request.POST.get("food_status")
order_item = OrderItem(food_status=food_status)
order_item.save()
return render(request, 'restaurants/kitchen_page.html', {'chef_view':chef_view})
解决了,非常感谢。但我还有一个问题,您知道如何根据id更新数据库中的数据吗?我想根据OrderId更新food_状态,你知道怎么做吗?解决了,非常感谢。但我还有一个问题,您知道如何根据id更新数据库中的数据吗?我想根据OrderId更新食物状态,你知道怎么做吗?