Question

让我说我有以下非常简单的模型：

class Customer(models.Model):
        name = models.CharField(max_length=50)

class Probe(models.Model):
        OwnerInfo = models.CharField(max_length=50)
        comments = models.CharField(max_length=50)
        customer = models.ForeignKey(Customer, null=True, blank=True)

我已经能够向Admin gui添加InLine，但我想使用SELECT组件，因此我可以选择几个探针并将它们分配给客户。从这个问题：

one-to-many inline select with django admin

我知道感谢Luke的答案（最后一篇）我应该创建一个自定义表单并将其分配给我的ModelAdmin.form但我不知道如何将它们组合在一起以使其工作。

愿任何人帮忙吗？

提前多多感谢。

好的，我更进了一步，现在我已将该字段添加到表单中，如下所示：

from django.contrib import admin
from django import forms

from web_gui.models import Probe, Customer, Firmware

class CustomerForm(forms.ModelForm):

        probes = forms.ModelMultipleChoiceField(queryset=Probe.objects.all())

        def __init__(self, *args, **kwargs):
                super(CustomerForm, self).__init__(*args, **kwargs)
                self.fields['probes'].initial = [p.pk for p in Probe.objects.filter(customer_id=self.instance.pk)]

        class Meta:
                model = Customer


class CustomerAdmin(admin.ModelAdmin):
        form = CustomerForm

admin.site.register(Probe)
admin.site.register(Customer, CustomerAdmin)
admin.site.register(Firmware)

但未选择通过“initial”指定的初始值。现在怎么了？我假设接下来将覆盖save（）方法来设置客户的探针，对吗？

Answer 1

这是我提出的最佳解决方案。如果还有其他更好的方法可以让我知道：

from django.contrib import admin
from django import forms
from django.contrib.admin.widgets import FilteredSelectMultiple


from web_gui.models import Probe, Customer, Firmware

class CustomerForm(forms.ModelForm):

        probes = forms.ModelMultipleChoiceField(queryset = Probe.objects.all(), required=False)
        probes.widget = FilteredSelectMultiple("Probes",False,attrs={'rows':'10'})

        def __init__(self, *args, **kwargs):
                super(CustomerForm, self).__init__(*args, **kwargs)

                self.fields['probes'].initial = [p.pk for p in Probe.objects.filter(customer_id=self.instance.pk)]

        def save(self, force_insert=False, force_update=False, commit=True):
                c = super(CustomerForm, self).save(commit=False)
                c.probe_set = self.cleaned_data['probes']
                c.save()

                return c

        class Meta:
                model = Customer


class CustomerAdmin(admin.ModelAdmin):
        form = CustomerForm

admin.site.register(Probe)
admin.site.register(Customer, CustomerAdmin)
admin.site.register(Firmware)

为OneToMany字段使用SELECT字段

1 个答案: