如何在django中保存一些数据而不将其添加到表单中?

class MyModel(models.Model): rate = models.CharField(max_length=100) amount = models.FloatField() userid = models.CharField(max_length=100) date = models.CharField() //This should be used to save the date def save(self): # ALL the signature super(MyModel, self).save()

class MyForm(forms.ModelForm): rate = forms.CharField() amount = forms.FloatField() class Meta: model = MyModel fields = ("rate", "amount") def save(self, commit=True): send = super(MyForm, self).save(commit=False) if commit: send.save() return send

首先,如果你提到一个用户,你最好使用 ForeignKey [Django-doc] :

from django import models
from django.contrib.auth import get_user_model

class MyModel(models.Model):
    rate = models.CharField(max_length=100)
    amount = models.FloatField()
    user = models.ForeignKey(get_user_model(), on_delete=models.CASCADE, blank=True, editable=False)
    created = models.DateTimeField(auto_now_add=True)

一 外键 保证它将引用用户。此外,如果您请求的话,它还将惰性地加载用户对象。

你也可以设置 DateTimeField [Django-doc] 与 ** auto_now_add=... parameter [Django-doc] 设置为 True . 这意味着它将在构建记录时获取值。

然后可以在视图中设置用户对象,如:

from app.forms import MyForm
from django.contrib.auth.decorators import login_required

@login_required
def some_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST, request.FILES)
        if form.is_valid():
            form.instance.user = request.user
            form.save()
            return redirect('some_view_name')
    else:
        form = MyForm()
    return render(request, 'some_template.html', {'form': form})

因为您想设置该记录的用户,所以可能应该用 @login_required decorator [Django-doc] .