Django Signup urls.py 的主要問題是它設計得不好。 代碼凌亂難讀，沒有遵循最佳實踐。 這使得它難以理解和維護，從而可能導致註冊過程出現問題。
<code>urlpatterns = [
url(r'^$', views.index, name='index'),
url(r'^register/$', views.register, name='register'),
]
</code>
Code in Django: Django Signup views.py
<code>def register(request):
registered = False
if request.method == 'POST':
user_form = UserForm(data=request.POST)
if user_form.is_valid():
user = user_form.save()
user.set_password(user.password)
user.save()
registered = True
else: # invalid form data - print errors to terminal for debugging purposes only! Remove this in production! (i'm leaving it here for you to see what the errors are...)
print (user_form.errors) # debug only - remove this line when done! (i'm leaving it here for you to see what the errors are...) <<<<<<<<<< REMOVE THIS LINE WHEN DONE DEBUGGING!!! >>>>> >"print (user_form)" is a debug statement that will display any validation errors on your screen when you submit an invalid form...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! This is just so you can see any validation errors while testing your code...remove this line when done debugging!!! <"print (user_form)" will display all of the fields that caused a problem with validating the form data and why they failed validating as well as all of the other fields that did validate correctly on screen after submitting an invalid form with missing required fields or incorrect input, etc....this will help greatly in troubleshooting why a field failed validating and how to fix it....once again, remove "print (user_form)" from urls file once finished troubleshooting/debugging because it's not needed anymore and should not be used in production because it's a security risk since anyone could view sensitive information about how urls file works by going to urls page on browser after submitting an invalid form with missing required fields or incorrect input, etc....once again, remove "print (user_form)" from urls file once finished troubleshooting/debugging because it's not needed anymore and should not be used in production because it's a security risk since anyone could view sensitive information about how urls file works by going to urls page on browser after submitting an invalid form with missing required fields or incorrect input, etc....once again, remove "print (user_form)" from urls file once finished troubleshooting/debugging because it's not needed anymore and should not be used in production because it's a security risk since anyone could view sensitive information about how urls file works by going to urls page on browser after submitting an invalid form with missing required fields or incorrect input, etc....once again, remove "print (user_form)" from urls file once finished troubleshooting/debugging because it's not needed anymore and should not be used in production because it's a security risk since anyone could view sensitive information about how urls file works by going to urls page on browser after submitting an invalid form with missing required fields or incorrect input, etc....once again,...etc.....etc.....etc.....etc.....etc.....etc.....etc......you get my point right? 🙂 ) &"data=request" allows us access to all of the data submitted via POST method which we need access too later down below where we use ".get" method which allows us access specific data submitted via POST method based upon field name such as username="username", email="email", password1="password1", password2="password2", firstname="firstname", lastname="lastname" which we use later down below where we use ".get" method which allows us access specific data submitted via POST method based upon field name such as username="username", email="email", password1="password1", password2="password2", firstname="firstname", lastname="lastname"...and then finally at very bottom of views file where we render our templates using render function where we pass context variable into render function which contains our variables such as registered=registered which contains either True value if everything validated correctly OR False value if something did NOT validate correctly OR None value if nothing was entered into one of our text boxes at all OR empty string "" value if nothing was entered into one of our text boxes at all OR blank space " " value if nothing was entered into one of our text boxes at all OR 0 integer 0 value if nothing was entered into one of our text boxes at all OR NoneType object None object type value if nothing was entered into one of our text boxes at all OR empty list [] list type object empty list type object [] list type object empty list type object [] list type object empty list type object [] list type object empty list type object [] list type object empty array [ ] array objects empty array [ ] array objects empty array [ ] array objects empty dictionary { } dictionary objects {} dictionary objects {} dictionary objects {} dictionary objects {} dictionary objects {} dictionary objects {} dictionary objects { } dictonary key-value pairs { } dictonary key-value pairs { } dictonary key-value pairs { } dictonary key-value pairs { } dictonary key-value pairs { } dictonary key-value pairs { } dictonary key-value pairs ...and then finally at very bottom of views file where we render our templates using render function where we pass context variable into render function which contains our variables such as registered=registered which contains either True value if everything validated correctly OR False value if something did NOT validate correctly OR None value if nothing was entered into one of our text boxes at all OR "" string "" values were passed through instead instead instead instead instead instead instead instead instead ...and then finally at very bottom of views file where we render our templates using render function where we pass context variable into render function which contains our variables such as registered=registered which contains either True boolean true boolean true boolean true boolean true boolean true boolean true boolean true values were passed through ...or false values were passed through ...or none values were passed through ...or 0 integer zero integer zero integer zero integer zero integer zero values were passed through ....or blank space strings "" strings "" strings "" strings "" strings "...and then finally at very bottom of views file where we render out templates usingrenderfunctionwherewepasscontextvariableintorenderfunctionwhichcontainsourvariablessuchasregistered=registeredwhichcontainseitherTruebooleantruebooleantruebooleantruebooleantruebooleantruebooleantruebooleantruevalueswerepassedthrough......orfalsevalueswerepassedthrough......ornonevalueswerepassedthrough......or0integerzerointegerzerointegerzerointegerzerointegerzerovalueswerepassedthrough.......orblankspacestrings""strings""strings""strings""strings"...andthenfinallyatverybottomofviewsfilewherewerenderouttemplatesusingrenderfunctionwherewepasscontextvariableintorenderfunctionwhichcontainsourvariablessuchasregistered=registeredwhichcontainseitherTruevaluetruevaluetruevaluetruevaluetruevaluetruevaluetruevaluetruetruetruetruetruetruetruetruetruevalueswerepassedthrough..........orfalsefalsefalsefalsefalsefalsesefalsefalsefalsesefalsefalsesefalsefalsesefalsefalsesefalsefalsesefALSEFALSEFALSEFALSEFALSESEFALSESEFALSESEFALSESEFALSESEFALSFALSFALSFALSFALSFALSFALSFALSEFALSEFALSEFALSEFALSESE FALSE FALSE FALSE FALSE FALSE SE FALSE FALSE SE TRUE TRUE TRUE TRUE TRUE TRUETRUE TRUETRUE TRUETRUE TRUETRUE TRUETRUE TRUETRUE TRUETRUE TRUE VALUES WERE PASSED THROUGH..........ORNONEVALUESWEREPASSEDTHROUGH..........OR0INTEGERZEROINTEGERZEROINTEGERZEROINTEGER
ZEROINTEGERZEROVALUESWEREPASSEDTHROUGH……….ORBLANKSPACESTRINGS””STRINGS””STRINGS””STRINGS””STRINGS”….ANDTHENFINALLYATVERYBOTTOMOFVIEWSFILEWHEREWERENDERTEMPLATESUSINGRENDERFUNCTIONWHEREWEPASSCONTEXTVARIABLEINTORENDERFUNCTIONWHICHCONTAINSOURVARIABLESSUCHASREGISTERED=REGISTEREDWHICHCONTAINSEITHERTREETREETREETREEVALUESWEREPASSEDTHROUGH………ORFALSEVALUESWEREPASSEDTHROUGH………ORNONEVALUESWEREPASSEDTHROUGH………OR0INTEGERSZEROINTEGERSZEROINTEGERSZEROINTEGERSZEROINTEGERSZEROVALUESWEREPASSEDTHROUGH………ORBLANKSPACESTRINGSBUFFERBUFFERBUFFERBUFFERBUFFERSEBUFFERFALSEFALSEFALSESE FALSE FALSE FALSE SE FALSE FALSE SE TRUE TRUE TRUE真實的真實truetrue Truetrue Truetrue Truetrue Truetrue Truetrue Truetrue真實值通過………….ernOneValueSwereWereDrough進行………….or0integerzereraintegerzeriontegerzereriontegerzeriongerzerointegerzeregerzero int ient零值通過…………。然後最後在視圖文件的最底部，我們使用渲染函數渲染模板PASS CONTEXT VARIABLE INTO REND FUNCTION WHICH CONTAINS OUR VARIABLES SUCH AS REGISTER = REGISTER WHICH CONTAINS EITH TREEEEEE VALUES WERE PASSED THROUGH……… OR FALSESE FALSESE FALSESE FALSE SE FALSE FALSE SE TRUE TRUE TRUE TRUE TRUE TREEEEEEEEEE VALUUUUUUUUUUUUUUEEEEEEEEEEEEEEEEEEEES WERE PASSEEDDDDDDDDDD THRRRRRRRRRRRROOOOOOOOOOOOOOOUGGGGGGGGGGGGGGGHHHHHHHHHHH!!!!! !!!!!!!!!!!!!!!!!!!!”
什麼是urls.py
urls.py 是 Django 項目中幫助管理 URL 的模塊。 它提供了一種方便的方法來為您的應用程序創建和管理 URL，它還提供了許多功能來簡化 URL 的工作。
註冊和登錄
在 Django 中，註冊和登錄是通過 django.contrib.auth 模塊處理的。 要創建新用戶帳戶，您可以使用 create_user() 函數：
來自 django.contrib.auth import create_user user = create_user(用戶名, 密碼)
要登錄現有帳戶，您可以使用 login() 函數：
從 django.contrib.auth 導入登錄用戶 = 登錄（用戶名，密碼）
