Refactor apps to be in repo folder

users/forms.py

@@ -0,0 +1,38 @@
+from django import forms
+from django.utils.translation import ugettext_lazy as _
+from django.contrib.auth.models import User
+
+
+class UserCreationForm(forms.ModelForm):
+    """
+    A form that creates a user, with no privileges, from the given username,
+    email, and password.
+    """
+    error_messages = {
+        'duplicate_username': _("A user with that username already exists."),
+    }
+    username = forms.RegexField(label=_("Username"), max_length=30,
+        regex=r'^[\w-]+$')
+    password = forms.CharField(label=_("Password"),
+        widget=forms.PasswordInput)
+
+    class Meta:
+        model = User
+        fields = ("username", "email")
+
+    def clean_username(self):
+        # Since User.username is unique, this check is redundant,
+        # but it sets a nicer error message than the ORM. See #13147.
+        username = self.cleaned_data["username"]
+        try:
+            User._default_manager.get(username=username)
+        except User.DoesNotExist:
+            return username
+        raise forms.ValidationError(self.error_messages['duplicate_username'])
+
+    def save(self, commit=True):
+        user = super(UserCreationForm, self).save(commit=False)
+        user.set_password(self.cleaned_data["password"])
+        if commit:
+            user.save()
+        return user