Django：如何将数据保存到ManyToManyField

你的帮助对我很好。以下是代码：

models.py：

from django.db import models

class TagModel(models.Model):
    tag = models.CharField(max_length=50)
    def __str__(self):
        return self.tag

class MyModel(models.Model):
    title = models.CharField(max_length=50)
    tag = models.ManyToManyField(TagModel)

forms.py：

from django import forms
from .models import *

class MyForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = '__all__'

views.py：

from django.shortcuts import render, get_object_or_404, redirect
from .models import *
from .forms import *

def MyWriteView(request):
    if request.method == "POST":
        mywriteform = MyForm(request.POST)
        if mywriteform.is_valid():
            confirmform = mywriteform.save(commit=False)
            confirmform.save()
            return redirect('MyDetail', pk=confirmform.pk)
    else:
        mywriteform = MyForm()
    return render(request, 'form.html', {'mywriteform': mywriteform})

html（第一次试用）：

{%csrf_令牌%}
{{mywriteform}}
拯救

html（第二次试用）：

{%csrf_令牌%}
{{mywriteform.title}
{mywriteform.tags%中标记列表的%s}
{{taglist}}
{%endfor%}
拯救

我正在尝试在我的帖子上添加标签。我做了一个简单的很多标签博客，但它不工作。我通过点击save按钮提交了一篇文章，标题被保存了，但是标签没有。在管理方面，它运行良好

---

提前谢谢。

像这样更新代码

if mywriteform.is_valid():
        confirmform = mywriteform.save(commit=False)
        confirmform.save()
        mywriteform.save_m2m()
        return redirect('MyDetail', pk=confirmform.pk)

---

有关更多详细信息

感谢您的回复。答复中的代码有错误：[AttributeError'MyModel'对象没有属性'save_m2m']。我将您的答案：[confirmform.save_m2m（）]修改为[mywriteform.save_m2m（）]。它工作得很好。我很感激。

<form method="post">
  {% csrf_token %}
  {{ mywriteform.title }}
  <select name="tags" required="" id="id_tags" multiple="">
    {% for taglist in mywriteform.tags %}
    <option value="{{taglist.id}}">{{taglist}}</option>
    {% endfor %}
  </select>
<button type="submit">Save</button>
</form>

if mywriteform.is_valid():
        confirmform = mywriteform.save(commit=False)
        confirmform.save()
        mywriteform.save_m2m()
        return redirect('MyDetail', pk=confirmform.pk)