Fixed #61 -- No more editing hashes when creating users via the admin. Created a special-case 'Add user' admin view. The change form still displays the hash, for the moment.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3520 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/auth/forms.py

@@ -5,6 +5,28 @@ from django.template import Context, loader
 from django.core import validators
 from django import forms
 
+class UserCreationForm(forms.Manipulator):
+    "A form that creates a user, with no privileges, from the given username and password."
+    def __init__(self):
+        self.fields = (
+            forms.TextField(field_name='username', length=30, maxlength=30, is_required=True,
+                validator_list=[validators.isAlphaNumeric, self.isValidUsername]),
+            forms.PasswordField(field_name='password1', length=30, maxlength=60, is_required=True),
+            forms.PasswordField(field_name='password2', length=30, maxlength=60, is_required=True,
+                validator_list=[validators.AlwaysMatchesOtherField('password1', "The two password fields didn't match.")]),
+        )
+
+    def isValidUsername(self, field_data, all_data):
+        try:
+            User.objects.get(username=field_data)
+        except User.DoesNotExist:
+            return
+        raise validators.ValidationError, 'A user with that username already exists.'
+
+    def save(self, new_data):
+        "Creates the user."
+        return User.objects.create_user(new_data['username'], '', new_data['password1'])
+
 class AuthenticationForm(forms.Manipulator):
     """
     Base class for authenticating users. Extend this to get a form that accepts