Django 使用 ModelForm 更新一个字段

如何使用Django的ModelForm来更新字段

python
from django.db import models
class Person(models.Model):
    name = models.CharField(max_length=100)

python
from django import forms
from .models import Person
class PersonForm(forms.ModelForm):
    class Meta:
        model = Person
        fields = ['name']

python
from django.shortcuts import render, get_object_or_404
from .forms import PersonForm
from .models import Person
def update_person(request, person_id):
    person = get_object_or_404(Person, id=person_id)
    
    if request.method == 'POST':
        form = PersonForm(request.POST, instance=person)
        
        if form.is_valid():
            form.save()
            # 更新成功，重定向到某个页面
    else:
        form = PersonForm(instance=person)
    
    return render(request, 'update_person.html', {'form': form})

html
  {% csrf_token %}
  
  {{ form.as_p }}
  
  更新