我的Django表单没有将我的图像添加到数据库

# models.py
from django.db import models

class MyModel(models.Model):
    image = models.ImageField(upload_to='images/')  # 图像上传字段
    image_path = models.CharField(max_length=255)  # 图像文件路径字段

# forms.py
from django import forms
from .models import MyModel

class MyForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = ['image']

# views.py
from django.shortcuts import render
from .forms import MyForm

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST, request.FILES)
        if form.is_valid():
            instance = form.save(commit=False)
            instance.image_path = instance.image.name  # 将图像文件路径保存到数据库
            instance.save()
            return render(request, 'success.html')
    else:
        form = MyForm()
    return render(request, 'my_form.html', {'form': form})