Question

我有表单验证：

def contact(request):
if request.method == 'POST':
    form = AddForm(request.POST)
    if form.is_valid():
        #Saving to database
        return HttpResponseRedirect('/thanks/') # Redirect after POST
else:
    form = AddForm() # An unbound form
return render(request, 'contact.html', {
    'form': form,
})

我不知道如何将数据保存到数据库中。例如，我在字段“name：cofee，category：food”中的模板中输入一些数据。那么如何将其保存在数据库中呢？

Answer 1

通常的策略是在AddForm中实现一个保存数据的save方法。在save方法中验证数据的有效性是一种很好的做法：这样您就不需要明确地调用is_valid（）方法（访问errors属性将触发基本django表单类中实现的清理和验证过程））

def contact(request):
    if request.method == 'POST':
        form = AddForm(request.POST)
        try:
            form.save()
        except:
            #handle exceptions
        return HttpResponseRedirect('/thanks/')
    else:
        form = AddForm() 
        return render(request, 'contact.html', {'form': form,})

# save method to put in your form class
def save(self):
    if not self.errors:
        to_save = ObjModel(<name_of_the_object_model_field> = self.cleaned['<name_of_your_form_field_containing_the_data>'])
        to_save.save()

这是描述通用django方法来完成您在文档中找到的汇总概念。您当然可以调整它以适应您的需求。

欢呼声，

Answer 2

要将字段保存到数据库，请使用ModelForm，或使用新的CreateView，这更简单：

在views.py：

中

from django.views.generic.edit import CreateView
from django.views.generic.base import TemplateView
from django.core.urlresolvers import reverse_lazy

from yourapp.models import SomeModel

class CreateSomeModel(CreateView):
    model = SomeModel
    template_name = 'some_template.html'
    success_url = reverse_lazy('home')

class Home(TemplateView):
    template_name = 'home.html'

在some_template.html：

<form method="post">
  {% csrf_token %}
  {{ form }}
  <input type="submit">
</form>

在home.html：

<strong>This is the home page</strong>

在urls.py：

from django.conf.urls import patterns, url

from yourapp.views import CreateSomeModel
from yourapp.views import Home

urlpatterns = patterns('',
   url(r'^create/$', CreateSomeModel.as_view(), name='create'),
   url(r'^$', Home.as_view(), name='home'),)

Django从表单保存到数据库

2 个答案: