Django通过多选下拉框动态选择和显示模型内联

from django.db import models

class ParentModel(models.Model):
    name = models.CharField(max_length=100)

class ChildModel(models.Model):
    parent = models.ForeignKey(ParentModel, on_delete=models.CASCADE)
    name = models.CharField(max_length=100)

from django import forms
from .models import ParentModel

class ParentModelForm(forms.ModelForm):
    child_models = forms.ModelMultipleChoiceField(queryset=ChildModel.objects.all(), required=False)

    class Meta:
        model = ParentModel
        fields = ['name', 'child_models']

from django.shortcuts import render
from .forms import ParentModelForm

def parent_model_view(request):
    if request.method == 'POST':
        form = ParentModelForm(request.POST)
        if form.is_valid():
            parent_model = form.save()
            parent_model.child_models.set(form.cleaned_data['child_models'])
    else:
        form = ParentModelForm()
    
    return render(request, 'parent_model.html', {'form': form})

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">提交</button>
</form>