尝试将查询集作为初始数据传递给表单集
我正在尝试为库存系统构建一个页面，该页面将允许用户更新收到的商品数量。
我想显示所有产品的表格，并让用户输入收到的数量，我将发布并迭代以更新数据库。
这是我的观点：
def new_shipment(request):
list_of_active_products = Product.objects.filter(status=1)
ShipmentFormSet = formset_factory(ShipmentForm, extra=0)
formset = ShipmentFormSet(initial=list_of_active_products)
return render_to_response('inventory/new_shipment.html', {'formset': formset})
这是我的表单模型：
class ShipmentForm(forms.Form):
sku = forms.IntegerField()
product_name = forms.CharField(max_length=100)
quantity = forms.IntegerField()
这是表单模板：
<form method="post" action="">
<table>
{% for form in formset %}
{{ form }}
{% endfor %}
</table>
<input type="submit" />
</form>
这是我收到的错误：
渲染时捕获 AttributeError： 'Product' 对象没有属性 'get'
任何人都可以帮助我这？
I'm trying to build a page for an inventory system that will allow a user to update a quantity of items received.
I want to show a table of all products and let the user enter the quantity received, which I'll post and iterate over to update the database.
Here is my view:
def new_shipment(request):
list_of_active_products = Product.objects.filter(status=1)
ShipmentFormSet = formset_factory(ShipmentForm, extra=0)
formset = ShipmentFormSet(initial=list_of_active_products)
return render_to_response('inventory/new_shipment.html', {'formset': formset})
Here's my model for the form:
class ShipmentForm(forms.Form):
sku = forms.IntegerField()
product_name = forms.CharField(max_length=100)
quantity = forms.IntegerField()
And here is the form template:
<form method="post" action="">
<table>
{% for form in formset %}
{{ form }}
{% endfor %}
</table>
<input type="submit" />
</form>
And here is the error I'm getting:
Caught AttributeError while rendering: 'Product' object has no attribute 'get'
Can anyone help me out with this?
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从文档来看，您似乎必须传入一个字典列表作为初始数据，而不是一个查询集：
另请注意，我们正在传入一个字典列表作为初始数据。您可以想要将初始查询更改为：
它将返回字典列表而不是模型实例对象。
将初始数据与表单集一起使用：
https://docs. djangoproject.com/en/dev/topics/forms/formsets/#using-initial-data-with-a-formset
ValuesQuerySet：
https://docs. djangoproject.com/en/dev/ref/models/querysets/#django.db.models.query.QuerySet.values
From the docs it looks like you have to pass in a list of dictionaries as the initial data, rather than a QuerySet:
Also note that we are passing in a list of dictionaries as the initial data.You may want to change your initial query to:
which will return a list of dictionaries rather than model-instance objects.
Using initial data with a formset:
https://docs.djangoproject.com/en/dev/topics/forms/formsets/#using-initial-data-with-a-formset
ValuesQuerySet:
https://docs.djangoproject.com/en/dev/ref/models/querysets/#django.db.models.query.QuerySet.values
您还可以使用查询集参数。这应该有效：
cf. https://docs.djangoproject.com/en/ dev/topics/forms/modelforms/#change-the-queryset
You can also use the queryset argument. This should work:
cf. https://docs.djangoproject.com/en/dev/topics/forms/modelforms/#changing-the-queryset