不使用form.py的模型中的Django复选框？

class Tag(models.Model):
    name = models.CharField(max_length=50)

class Post(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField()
    tags = models.ManyToManyField(Tag, blank=True)

from django.contrib import admin
from .models import Post

class PostAdmin(admin.ModelAdmin):
    filter_horizontal = ('tags',)

admin.site.register(Post, PostAdmin)

from django.shortcuts import render
from .models import Post

def create_post(request):
    if request.method == 'POST':
        title = request.POST.get('title')
        content = request.POST.get('content')
        tags = request.POST.getlist('tags')  # 获取多个复选框的值

        post = Post(title=title, content=content)
        post.save()

        for tag_id in tags:
            tag = Tag.objects.get(id=tag_id)
            post.tags.add(tag)

        return render(request, 'success.html')
    else:
        return render(request, 'create_post.html')