我正在跟随DAL documentation向我的表单中添加一个已过滤的字段,但转发无法将一个字段连接到另一个字段:
Forms.py
class PurchaseForm(forms.ModelForm):
commodity = forms.ModelChoiceField(
queryset=Commodity.objects.all(),
widget=autocomplete.ModelSelect2(url='commodity-autocomplete'),
required=False,
)
class Meta:
model = Purchase
fields = ["variety"]
widgets = {
'variety': autocomplete.ModelSelect2(url='variety-autocomplete', forward=['commodity'],
}
Views.py
class VarietyAutocompleteView(autocomplete.Select2QuerySetView):
def get_queryset(self):
qs = Variety.objects.all()
commodity = self.forwarded.get('commodity', None)
print("Commodity:" + str(commodity))
if commodity:
qs = qs.filter(commodity=commodity)
if self.q:
qs = qs.filter(name__istartswith=self.q)
return qs
我希望我的Variety选项可以通过它们与Commodity对象的外键关系进行过滤。两个自动填充字段都可以正常使用,但commodity
字段中的选项不会转发到VarietyAutocompleteView
(我的打印命令会打印Commodity:None
)。这可能是因为我传递了一个外键对象吗?或者我是否以某种方式错误地设置了它?
答案 0 :(得分:1)
我不得不废弃DAL并转移到Bootstrap Combobox。如果您使用的是Bootstrap库,那么它实际上很容易实现。
这就是它的设置方式:
将类combobox
添加到选择小部件:
<强> forms.py 强>
from django import forms
from Business.models import Company, Branch
from .models import Variety
class PurchaseForm(forms.ModelForm):
variety = forms.ModelChoiceField(
queryset=Variety.objects.all(),
widget=forms.Select(attrs={'class': 'combobox'}),
required=False
)
class Meta:
model = Purchase
fields = [
"invoice", "contract_date", ...
]
然后,插入最简单的javascript片段:
<强> inventory_report.html 强>
....
<td style="padding-bottom: 10px">
<div>Supplier:</div>
<div>{{ view.purchase_form.supplier }}</div>
</td>
....
{% block scripts %}
<script type="text/javascript" src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script type="text/javascript" src="{% static 'js/bootstrap-combobox.js' %}"></script>
$(document).ready(function(){
// Set Text Autofields on New Contract
$('.combobox').combobox();
});
</script>
{{ view.purchase_form.media }}
{% endblock %}
这就是它的全部内容。