Django -如何使用登录用户过滤的另一个模型中的字段填充model modelchoicefield中的选择

from django.db import models
from django.contrib.auth.models import User

class Item(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    name = models.CharField(max_length=100)
    # 添加其他字段...

from django import forms
from .models import Item

class ItemForm(forms.ModelForm):
    class Meta:
        model = Item
        fields = ['user', 'name']  # 将需要过滤的字段包含在表单中

    def __init__(self, *args, **kwargs):
        user = kwargs.pop('user')  # 获取登录用户信息
        super(ItemForm, self).__init__(*args, **kwargs)
        self.fields['user'].queryset = User.objects.filter(username=user.username)  # 过滤选择的选项

from django.shortcuts import render
from .forms import ItemForm

def create_item(request):
    if request.method == 'POST':
        form = ItemForm(request.POST, user=request.user)  # 将登录用户信息传递给表单
        if form.is_valid():
            form.save()
            # 处理表单提交成功后的逻辑...
    else:
        form = ItemForm(user=request.user)  # 将登录用户信息传递给表单

    return render(request, 'create_item.html', {'form': form})