通过django代码为一对多字段赋值

from django.db import models

class ParentModel(models.Model):
    # 父模型的字段

class ChildModel(models.Model):
    parent = models.ForeignKey(ParentModel, on_delete=models.CASCADE)
    # 子模型的字段

from django.shortcuts import get_object_or_404

def your_view(request, parent_id):
    parent = get_object_or_404(ParentModel, id=parent_id)
    child = ChildModel.objects.create(parent=parent)
    # 对子模型其他字段进行赋值

{% for child in parent.childmodel_set.all %}
    {{ child.field_name }}
{% endfor %}