Django 1.4想要使用SelectDateWidget來生成我的表單中不需要的生日日期字段

Question

我正在嘗試爲用戶創建一個表單，以便自己更改其個人資料帳戶信息。目前我擁有它，以便他們可以更新他們的第一個，最後一個和用戶名，性別和'birthdate'。 '出生日期'是我不能不需要的唯一一個。目前，我的表單會檢查在任何表單字段中是否未輸入任何內容，如果沒有更改，則不會更新用戶信息。

~~ Models.py ~~

class Account(models.Model): 
    user    = models.OneToOneField(User)  #link (pointer) to the users  other information in User model           
    birthdate   = models.DateField(blank = True, null = True) # True makes this field optional               
    gender    = models.CharField(max_length = 10, choices = GENDER_CHOICE, null = True, blank = True) 
    profilePic   = models.ImageField(upload_to = "profilepics/%Y/%m/%d", default = "profilepics/default.jpg", blank = True) 

--Form來收集用戶的設置改變

class EditAccountForm(forms.Form): 
    username   = forms.CharField(max_length = 30, required = False) 
    first_name   = forms.CharField(max_length = 30, required = False) 
    last_name   = forms.CharField(max_length = 30, required = False) 
    birthdate   = forms.DateField(widget = SelectDateWidget(required = False, years = range(2022, 1930, -1))) # make birthdate drop down selectable  
    gender    = forms.CharField(max_length = 10, widget=forms.Select(choices = GENDER_CHOICE),)# null = True)     

~~ Views.py

def AccountSettings(request): 
    sluggedSettingError = request.GET.get('error', '') # error message with slugged character                 
    settingError = sluggedSettingError.replace('-', ' ') 
    # form variable may need to be inside below if statement                         
    settingForm = EditAccountForm(request.POST or None) # variable is called in edit_user.html                
    if request.method == 'POST': 
     if settingForm.is_valid(): 

      userSettings = request.user.get_profile() # returns the current settings of the users profile 
if request.POST['gender'] == '---': 
       print "Gender was not changed" 
      else: 
       userSettings.gender = request.POST['gender'] # add a check for birthdate submission               
      userSettings.birthdate = settingForm.cleaned_data.get('birthdate') # currently requires input format YYYY-mm-dd         
      # check if the first name submission is not changed                        
      if request.POST['first_name'] == '': 
       print "First name not changed" 
      else: 
       userSettings.user.first_name = request.POST['first_name'] 
      # check if the last name submission is not changed                        
      if request.POST['last_name'] == '': 
       print "Last name not changed" 
      else: 
       userSettings.user.last_name = request.POST['last_name'] 
      # check if the username submission is not changed                         
      if request.POST['username'] == '': 
       print "Username not changed" 
      else: 
       userSettings.user.username = request.POST['username'] 
      # check if the ProfilePicture submission is not changed                       
#    if request.POST['profilePic'] == None: 
#     print "Profile picture not changed" 
#    else: 
#     userSettings.profilePic = request.POST['profilePic'] 
      userSettings.user.save()    # save the changes to the fields in used from the auth library            
      userSettings.save()     # save the altered and unaltered settings                 
      return HttpResponseRedirect('/') 
    return render_to_response("user_settings.html", {'settingForm': settingForm, 'settingError': settingError}, context_instance = RequestContext(request)) 

有沒有一種辦法在使用SelectDateWidget（）時，不要求使用birthdate字段，因爲我當前的required = False嘗試不起作用。或者更好的方法來允許用戶編輯他們的設置並提交更改？

謝謝先進。

Answer 1

我想到一個事實，即您的問題得出：

settingForm.cleaned_data.get('birthdate') 

不會回到None，但你手中一個空字符串''這也不是什麼日期或日期時間字段的期望。

如果用戶沒有真正選擇日期，則應該返回一個NoneType。