我已经搜索了论坛和其他地方，但找不到我想要的东西。我有五个模型：消防栓，仪表，资产类型， WorkOrderActivity 和工作订单。
# models.py
class Hydrant(models.Model):
uniqueId = GISModel.CharField(max_length=100)
geom = GISModel.PointField()
def__str__(self):
return self.uniqueId
class Meter(models.Model):
uniqueId = GISModel.CharField(max_length=100)
geom = GISModel.PointField()
def__str__(self):
return self.uniqueId
class AssetType(models.Model):
typeChoices = (
('Hydrant', 'Hydrant'),
('Meter', 'Meter'),
etc...
)
name = models.CharField('Asset Type',max_length=30,choices=typeChoices)
def __str__(self):
return self.name
class WorkOrderActivity(models.Model):
assetType = models.ForeignKey(
'AssetType',
related_name='workorderactivities',
on_delete=models.SET_NULL,
blank=True,
null=True
)
activityChoices = (
('Paint Hydrant', 'Paint Hydrant'),
('Flush Hydrant', 'Flush Hydrant'),
('Read Meter', 'Read Meter'),
etc...
)
activityType = models.CharField('Activity Type', choices=activityChoices ,max_length=50)
def __str__(self):
return self.activityType
class Workorder(models.Model):
assetType = models.ForeignKey(AssetType, related_name='typeOfAsset', on_delete=models.SET_NULL)
woActivity = models.ForeignKey(WorkOrderActivity, on_delete=models.SET_NULL)
hydrant = models.ForeignKey(Hydrant, related_name='workorders', on_delete=models.SET_NULL)
meter = models.ForeignKey(Meter, related_name='workorders', on_delete=models.SET_NULL)
description = models.TextField('Description', max_length=250, blank=True, null=True)
def __str__(self):
return self.description
我想做的是从一张传单地图中查看所有资产（消防栓和水表），单击资产以查看弹出信息，这里有一个“创建工作订单”按钮。
在我正常的“ create_workorder”视图中，用户将不会从地图上创建工作订单，我的所有下拉列表都是链接在一起的，这意味着基于所选的资产类型，用户只能看到“ woActivity”的类型该特定类型的资产。
# views.py
# normal create workorder view
def create_workorder(request):
if request.method == 'POST':
form = NewWorkOrderForm(request.POST)
if form.is_valid():
workorder = form.save(commit=False)
workorder.save()
return redirect('workorders:workorders')
else:
form = NewWorkOrderForm()
return render(request, 'workorders/create.html', {'form': form})
############################
# forms.py
# normal create workorder form
class NewWorkOrderForm(forms.ModelForm):
class Meta:
model = WorkOrder
fields = (
'assetType',
'hydrant',
'meter',
'woActivity',
'description'
)
def __init__(self, *args, **kwargs):
super(NewWorkOrderForm, self).__init__(*args, **kwargs)
self.fields['assetType'].label = 'Asset Type'
self.fields['woActivity'].label = 'Work Type'
这是该视图的模板
# create.html
<div class="card">
<div class="card-header">
<h3 class="card-title" style="font-size:26px;">Create New Work Order</h3>
<div class="card-tools">
<button type="button" class="btn btn-tool" data-card-widget="collapse">
<i class="fas fa-minus"></i>
</button>
</div>
</div>
<div class="card-body">
<form action="" method="POST" id="newWorkOrderForm" novalidate>
{% csrf_token %}
<!-- assetTypes -->
<div class="form-group">
<div class="col-6">
{{ form.assetType|as_crispy_field }}
</div>
</div>
<!-- hydrants -->
<div class="form-group" id="divHydrantSelect">
<div class="col-6">
{{ form.hydrant|as_crispy_field }}
</div>
</div>
<!-- meters-->
<div class="form-group" id="divMeterSelect">
<div class="col-6">
{{ form.meter|as_crispy_field }}
</div>
</div>
<!-- workOrder Activities -->
<div class="form-group" id="divActivitySelect">
<div class="col-6">
{{ form.woActivity|as_crispy_field }}
</div>
</div>
<!-- workOrder description -->
<div class="form-group" id="divDescription">
<div class="col-6">
{{ form.description|as_crispy_field }}
</div>
</div>
<!-- submit form -->
<div class="form-group" id="divSubmitForm">
<div class="col-6">
<button class="btn btn-primary" type="submit" value="Submit">Submit</button>
</div>
</div>
</form>
</div>
</div>
<script>
$("#id_assetType").change(function () {
if ($(this).val() == "---------") {
$('#divHydrantSelect').hide();
$('#divMeterSelect').hide();
$('#divActivitySelect').hide();
$('#divDescription').hide();
$('#divSubmitForm').hide();
} else if ($(this).val() == "1") { // hydrant
$('#divHydrantSelect').show();
$('#divMeterSelect').hide();
$('#divActivitySelect').show();
$('#divDescription').show();
$('#divSubmitForm').show();
} else if ($(this).val() == "2") { // meter
$('#divHydrantSelect').hide();
$('#divActivitySelect').show();
$('#divDescription').show();
$('#divSubmitForm').show();
} else {
$('#divHydrantSelect').hide();
$('#divMeterSelect').hide();
$('#divActivitySelect').hide();
$('#divDescription').hide();
$('#divSubmitForm').hide();
}
var activitiesURL = "http://localhost:8000/dashboard/workorders/ajax/load-activities/";
var assetTypeId = $(this).val();
$.ajax({
url: activitiesURL,
data: {
"assetType": assetTypeId,
},
success: function (data) { // data is the return of the load_workOrderActivity
$("#id_woActivity").html(data);
}
});
// load hydrants
var hydrantsURL = "http://localhost:8000/dashboard/workorders/ajax/load-hydrants/";
var hydrantId = $(this).val();
$.ajax({
url: hydrantsURL,
data: {
"hydrants": hydrantId,
},
success: function (data) {
$("#hydrantSelect").html(data);
}
});
// load meters
var metersURL = "http://localhost:8000/dashboard/workorders/ajax/load-meters/";
var meterId = $(this).val();
$.ajax({
url: metersURL,
data: {
"meters": meterId
},
success: function (data) {
$("#meterSelect").html(data);
}
});
});
$("#id_assetType").trigger("change");
</script>
如果我要创建正常的工作订单，这会很好，但是在地图上这样做会遇到问题，因为我不知道如何用消火栓填充表单字段“消火栓”目的。我可以使用下面的内容自动填充“ assetType ”，然后为我选择所有消防栓，但是我希望在我填写“ 消防栓”字段时点击地图中的“创建工作订单”。
# views.py
# create workorder from the map via the popup
class CreateHydrantWOFromMap(CreateView):
model = WorkOrder
# fields = '__all__'
template_name = 'workorders/createHydrantWOfromMap.html'
form_class = NewHydrantForm
success_url = reverse_lazy('workorders:workorders')
def get_initial(self, *args, **kwargs):
initial = super(CreateHydrantWOFromMap, self).get_initial(**kwargs)
initial['assetType'] = '3'
return initial
@method_decorator(login_required)
def dispatch(self, *args, **kwargs):
return super().dispatch(*args, **kwargs)