Python-сообщество

from django import oldforms as forms
from django.http import HttpResponseRedirect
from django.shortcuts import render_to_response
from django.contrib.auth.forms import UserCreationForm

def register(request):
    form = UserCreationForm()

    if request.method == 'POST':
        data = request.POST.copy()
        errors = form.get_validation_errors(data)
        if not errors:
            new_user = form.save(data)
            return HttpResponseRedirect("/books/")
    else:
        data, errors = {}, {}

    return render_to_response("registration/register.html", {
        'form' : forms.FormWrapper(form, data, errors)
    })

Request URL:  	http://127.0.0.1:8000/accounts/register/
Exception Type: 	ImportError
Exception Value: 	cannot import name oldforms

 errors = form.get_validation_errors(data)

 return render_to_response("registration/register.html", {
        'form' : forms.FormWrapper(form, data, errors)
    })

return render_to_response("registration/register.html", {
        'form' : 'data'})

def register(request):
    form = UserCreationForm()

    if request.method == 'POST':
        data = request.POST.copy()
        new_user = form.save(data)
        return HttpResponseRedirect("/books/")
    else:
        data, errors = {}, {}

    return render_to_response("registration/register.html", {
        'form' : form
    })

class UserCreationForm(forms.ModelForm):
    """
    A form that creates a user, with no privileges, from the given username and password.
    """
    username = forms.RegexField(label=("Username"), max_length=30, regex=r'^\w+$',
        help_text = ("Required. 30 characters or fewer. Alphanumeric characters only (letters, digits and underscores)."),
        error_message = ("This value must contain only letters, numbers and underscores."))
    password1 = forms.CharField(label=("Password"), widget=forms.PasswordInput)
    password2 = forms.CharField(label=("Password confirmation"), widget=forms.PasswordInput)

    class Meta:
        model = User
        fields = ("username",)

    def clean_username(self):
        #username = self.cleaned_data["username"]
        try:
            User.objects.get(username=username)
        except User.DoesNotExist:
            return username
        raise forms.ValidationError(("A user with that username already exists."))

    def clean_password2(self):
        #password1 = self.cleaned_data.get("password1", "")
        password1 = self.clean.get("password1", "")
        password2 = self.clean["password2"]
        if password1 != password2:
            raise forms.ValidationError(("The two password fields didn't match."))
        return password2

    def save(self, commit=True):
        user = super(UserCreationForm, self).save(commit=False)
        #user.set_password(self.cleaned_data["password1"])
        user.set_password(self.clean["password1"])
        if commit:
            user.save()
        return user

Request Method:  	POST
Request URL: 	http://127.0.0.1:8000/accounts/register/
Exception Type: 	AttributeError
Exception Value: 	
'UserCreationForm' object has no attribute 'cleaned_data'
Exception Location: 	C:\Python25\lib\site-packages\django\forms\models.py in save_instance, line 38
Python Executable: 	C:\Python25\python.exe
Python Version: 	2.5.2

cleaned_data = form.cleaned_data

from django.db.models import Q
from django.shortcuts import render_to_response
from django.http import HttpResponseRedirect, HttpResponse
from django.contrib import auth
from django.contrib.auth.views import login, logout
from django.contrib.auth.forms  import UserCreationForm
from models import Book

def register(request):
    if request.method == 'POST':
        print "request.POST %s"%request.POST
        form = UserCreationForm(request.POST)
        if form.is_valid():
            username = form.cleaned_data['username']
            print "username %s"%username
            password1 = form.cleaned_data['password1']
            print "password1 %s"%password1
            password2 = form.cleaned_data['password1']
            print "password2 %s"%password2
            form.clean_username()#вызываем метод чтобы проверить зарегистрирован пользователь или нет? 
            if password1 == password2:
                new_user = form.save()
            else:
                print "какую переменную передать в форму и вывести сообщение о несовпадающих паролях?"
                form.ValidationError(_("A user with that username already exists."))
        else:
            print "form is not valid"
        return HttpResponseRedirect("/accounts/login/")
    else:
        form = UserCreationForm()
    return render_to_response("registration/register.html", {
        'form' : form
    })

{% block content %}
  <h1>Регистрация пользователя</h1>
  <form action="." method="post">
    {% if form.error_dict %}
      <p class="error">Пожалуйста исправьте нижеприведённые ошибки.</p>
    {% endif %}

    {% if form.username.errors %}
      {{ form.username.html_error_list }}
    {% endif %}
    <label for="id_username">Логин:</label> {{ form.username }}

    {% if form.password1.errors %}
      {{ form.password1.html_error_list }}
    {% endif %}
    <label for="id_password1">Пароль: {{ form.password1 }}

    {% if form.password2.errors %}
      {{ form.password2.html_error_list }}
    {% endif %}
    <label for="id_password2">Пароль (снова): {{ form.password2 }}

    <input type="submit" value="Зарегистрировать" />
  </label>
{% endblock %}

class UserCreationForm(forms.ModelForm):
    """
    A form that creates a user, with no privileges, from the given username and password.
    """
    username = forms.RegexField(label=_("Username"), max_length=30, regex=r'^\w+$',
        help_text = _("Required. 30 characters or fewer. Alphanumeric characters only (letters, digits and underscores)."),
        error_message = _("This value must contain only letters, numbers and underscores."))
    password1 = forms.CharField(label=_("Password"), widget=forms.PasswordInput)
    password2 = forms.CharField(label=_("Password confirmation"), widget=forms.PasswordInput)

    class Meta:
        model = User
        fields = ("username",)

    def clean_username(self):
        username = self.cleaned_data["username"]
        try:
            User.objects.get(username=username)
        except User.DoesNotExist:
            return username
        raise forms.ValidationError(_("A user with that username already exists."))

    def clean_password2(self):
        password1 = self.cleaned_data.get("password1", "")
        password2 = self.cleaned_data["password2"]
        if password1 != password2:
            raise forms.ValidationError(_("The two password fields didn't match."))
        return password2

    def save(self, commit=True):
        user = super(UserCreationForm, self).save(commit=False)
        user.set_password(self.cleaned_data["password1"])
        if commit:
            user.save()
        return user

raise forms.ValidationError(_("The two password fields didn't match."))

raise forms.ValidationError(_("A user with that username already exists."))

def register(request):
    if request.method == 'POST':
        print "request.POST %s"%request.POST
        form = UserCreationForm(request.POST)
        if form.is_valid():
            try:
                form.clean_username()
                form.clean_password2()
                new_user = form.save()
            except:
                print "was exception"
            return HttpResponseRedirect("/accounts/login/")
        else:
            return HttpResponseRedirect("/accounts/register/")
    else:
        form = UserCreationForm()
    return render_to_response("registration/register.html", {
        'form' : form
    })