Django-通过表单保存模型不起作用

Django中的.save（）方法有点问题。一种形式有效，另一种形式无效。我找不到问题所在

views.py

@login_required
def stock_add(request, portfolio_id):
    if request.method == 'POST':
        print('request.method is ok')
        form = StockForm(request.POST)
        print('form is ok')

        if form.is_valid():
            print('form is valid')
            stock = form.save(commit=False)
            stock.created_by = request.user
            stock.portfolio_id = portfolio_id
            stock.save()
            return redirect('portfolio-overview')
        else:
            print("nope")
    else:
        print('else form statement')
        form = StockForm()

    context = {
        'form':form
    }
    return render(request, 'portfolios/stock-add.html', context) 

forms.py

class StockForm(ModelForm):
    class Meta:
        model = Stock
        fields = ['quote', 'amount']

html

如果查看views.py文件，当我提交表单时，它甚至不会打印（'request.method is ok'） 我可以通过管理页面添加股票

所以我再也找不到线索了

---

干杯

当你发布表单并需要一个特殊的url（比如带有属性的“你的”）时，我喜欢设置

操作=“{%url myview.views.stock\u add portfolio\u id%}”

action=“”

将保存到同一页面，而不考虑额外的参数（如果需要）

---

只要在

上下文中传递
portfolio_id
，这就行了我找到了答案，InteregerField（来自models.py）需要一个默认值。
默认值=无（或其他值）

干杯
嗨，马克西姆，谢谢你的回答。我尝试添加“公文包id”：公文包id到上下文中。但这不起作用。我还尝试了action={%url'stock\u add'portfolio\u id%}，但效果不太好。。。。。还有其他建议吗？还是我做错了什么？
{% extends 'core/base.html' %}

{% block content %}
<div class="container">
    <h1 class="title">Add Stock</h1>

    <form method="POST" action=".">
        {% csrf_token %}

        {{ form.as_p }}
        <button type="submit" class="button is-primary">Submit</button>
    </form>
</div>
{% endblock %}

from django.db import models
from django.contrib.auth.models import User
# Create your models here.

class Portfolio(models.Model):
    title = models.CharField(max_length=56)
    description = models.TextField(blank=True, null=True, max_length=112)

    created_by = models.ForeignKey(User, related_name='portfolios', on_delete=models.CASCADE)
    created_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        verbose_name_plural = 'Portfolio'

    def __str__(self):
        return self.title



class Stock(models.Model):
    Portfolio = models.ForeignKey(Portfolio, related_name='stocks', on_delete=models.CASCADE)
    quote = models.CharField(max_length=10)
    amount = models.IntegerField()

    created_by = models.ForeignKey(User, related_name='stocks', on_delete=models.CASCADE)
    created_at = models.DateField(auto_now_add=True)

    def __str__(self):
        return self.quote