在 Django 中保存表单数据

Question

我正在尝试在 Django 中设置一个表单并将数据保存到我的数据库中，而不使用 ModelForm。我的表单正在工作，但我坚持的部分是如何处理表单数据并将其保存在视图中。如您所见，在 'if form.is_valid():' 之后，我被卡住了，想不出正确的代码。

# models.py

from django.db import models

class Listing(models.Model):
    business_name = models.CharField(max_length=80)
    business_email = models.EmailField()
    business_website = models.CharField(max_length=80)
    business_phone = models.CharField(max_length=80)

# forms.py

from django import forms

class NewBusinessForm(forms.Form):
    business_name = forms.CharField(label='Business Name', max_length=100)
    business_phone = forms.CharField(label='Phone Number', max_length=100)
    business_email = forms.EmailField(label='Email Address', max_length=100)
    business_website = forms.CharField(label='Web Site', max_length=100)

# views.py

from django.shortcuts import render
from django.http import HttpResponseRedirect
from .forms import NewBusinessForm

def new_business(request):
    if request.method == 'POST':
        form = NewBusinessForm(request.POST)
        if form.is_valid():
            # process form data
            return HttpResponseRedirect('/')

    else:
        form = NewBusinessForm()

    return render(request, 'directory/new.html', {'form': form})

Answer 1

在 Django 2.0 中，我认为有一个简单的方法，在基于类的视图中使用 FormView。

from django.views.generic.edit import FormView
class newBusiness(FormView):
    form_class = NewBusinessForm
    success_url ="/"
    template_name = "temp.html"
    def form_valid(self, form):
        form.save()
        return redirect(self.success_url )

我没有测试它运行，但我认为它会好的。更多https://docs.djangoproject.com/en/2.0/topics/forms/modelforms/

Answer 2

您需要手动创建对象并设置所有字段。这是一个例子。

def new_business(request):
    if request.method == 'POST':
        form = NewBusinessForm(request.POST)
        if form.is_valid():
            # process form data
            obj = Listing() #gets new object
            obj.business_name = form.cleaned_data['business_name']
            obj.business_email = form.cleaned_data['business_email']
            obj.business_phone = form.cleaned_data['business_phone']
            obj.business_website = form.cleaned_data['business_website']
            #finally save the object in db
            obj.save()
            return HttpResponseRedirect('/')
        ....

请注意，如果字段值不遵循约束，则保存对象可能会失败。所以你需要注意这一点。