Django表单：获得了发布请求但数据未保存

Question

因此，我正在尝试构建一个收集Mod应用程序以学习Django Forms的Django站点。除了我是一个白痴，我不知道我在做什么。 我试图做的事情是收集并保存表单数据当前部分，然后尝试在Django Admin中显示那些数据，但我仍然没有做过，也不知道该怎么做。

当我填写表格，我得到[06/May/2017 19:38:29] "POST /modapp HTTP/1.1" 200 2354

这是我forms.py：

class Application(forms.ModelForm): 



class Meta: 
    model = ModApplication 
    fields = ('discord', 'reddit', 'serverrank','finds','serverstay','active','timezone','reason','helped','help') 


def __init__(self, *args, **kwargs): 
    super(Application, self).__init__(*args, **kwargs) 
    self.fields['discord'].widget.attrs['placeholder'] = 'UnknownDeveloper#2068' 
    self.fields['reddit'].widget.attrs['placeholder'] = '/u/UnknownDeveloper' 
    self.fields['serverrank'].widget.attrs['placeholder'] = 'GEOCACHING + RANK' 
    self.fields['serverstay'].label = "How long have you been on the server" 
    self.fields['active'].label = "How active have you been on the server" 
    self.fields['timezone'].widget.attrs['placeholder'] = 'CET' 
    self.fields['reason'].label = "Why do you want to become a mod?" 
    self.fields['helped'].label = "How have you helped the server so far?" 
    self.fields['help'].label = "How will you help the server if you'll become a mod" 

models.py

class ModApplication(models.Model): 
def __unicode__(self): 
    return "Discord User: " + self.discord + " aka " + self.reddit 

reddit = models.CharField("Reddit Username", max_length=30) 
discord = models.CharField("Discord Username", max_length=30) 
serverrank = models.CharField("Server Rank", max_length=60) 
finds = models.CharField("Finds", max_length=12) 
serverstay = models.CharField("Stayed on the server for",max_length=200) 
active = models.CharField("Is Actice on Discord for", max_length=500) 
timezone = models.CharField("Timezone", max_length=20) 
reason = models.TextField("He likes to become a mod because", max_length=5000) 
helped = models.TextField("He helped by", max_length=5000) 
help = models.TextField("He'll help by", max_length=5000) 

views.py

def formtofill(request): 
form = Application() 
return render(request, 'appmod.html', {'form': form,}) 
if request.method == "POST": 
    form = Application(request.POST) 
    print(request.POST) 
    if form.is_valid(): 
     user = form.save() 
     user.discord = request.discord 
     user.reddit = request.reddit 
     user.serverrank = request.serverrank 
     user.finds = request.finds 
     user.serverstay = request.serverstay 
     user.active = request.active 
     user.timezone = request.timezone 
     user.reason = request.reason 
     user.helped = request.helped 
     user.help = request.help 
     user.save() 
     print(user) 
     messages.success(request, 'Your Mod Application has been successfully submitted!') 
     print(form) 
     return HttpResponse('Successful') 
else: 
    form_class = Application 

我搜查了一个很多，但我没有找到任何东西。我试图打印调试消息，但他们没有打印任何东西。我把消息模块，但没有发生。 HTTPResponse只是重新加载回表单。帮助将很乐意接受。谢谢你的时间。如果我失去了一些东西，请告诉我，我来编辑自己的帖子

Answer 1

这是一个惊喜，这个代码运行在所有的，应当制作属性错误，这些：

user.discord = request.discord 
    user.reddit = request.reddit 

但是，它的原因不会是因为执行路径从未达到正因为如此return语句的那点

def formtofill(request): 
    form = Application() 
    return render(request, 'appmod.html', {'form': form,}) 

。

你纠正的代码看起来应该像

def formtofill(request): 

    form = Application() 

    if request.method == "POST": 
     form = Application(request.POST) 
     print(request.POST) 
     if form.is_valid(): 
      user = form.save() 
      messages.success(request, 'Your Mod Application has been successfully submitted!') 
      return HttpResponseRedirect('/success_url') 
    else: 
     form_class = Application 
    return render(request, 'appmod.html', {'form': form,}) 

Answer 2

不要保存表单前期。保存但把提交= false。 同样在上面的答案中删除那个return语句。

user = form.save(commit=False). 

然后创建一个实例，但它没有写入数据库。现在你可以完成作业了。

user = form.save(commit=False). 
    #Now.... 
    user.discord = request.POST['discord'] 
    user.reddit = request.POST['reddit'] 
    user.serverrank = request.POST['serverrank'] 
    user.finds = request.POST['finds'] 
    user.serverstay = request.POST['serverstay'] 
    .................... 
    user.save() 
    return HttpResponse('Successful') 

相反，您试图访问数据的请求对象本身的属性。表单数据包含在request.POST中，那么你必须从那里访问它。

此外，

else: 
    form = Application() 

您需要实例化窗体类。