Part 4 - Authentication（14-16）

from django.conf.urls import url
from django.contrib import admin
from django.contrib.auth import views as auth_views

from accounts import views as accounts_views
from boards import views

urlpatterns = [
    url(r'^$', views.home, name='home'),
    url(r'^signup/$', accounts_views.signup, name='signup'),
    url(r'^login/$', auth_views.LoginView.as_view(template_name='login.html'), name='login'),
    url(r'^logout/$', auth_views.LogoutView.as_view(), name='logout'),

    url(r'^reset/$',
        auth_views.PasswordResetView.as_view(
            template_name='password_reset.html',
            email_template_name='password_reset_email.html',
            subject_template_name='password_reset_subject.txt'
        ),
        name='password_reset'),
    url(r'^reset/done/$',
        auth_views.PasswordResetDoneView.as_view(template_name='password_reset_done.html'),
        name='password_reset_done'),
    url(r'^reset/(?P<uidb64>[0-9A-Za-z_\-]+)/(?P<token>[0-9A-Za-z]{1,13}-[0-9A-Za-z]{1,20})/$',
        auth_views.PasswordResetConfirmView.as_view(template_name='password_reset_confirm.html'),
        name='password_reset_confirm'),
    url(r'^reset/complete/$',
        auth_views.PasswordResetCompleteView.as_view(template_name='password_reset_complete.html'),
        name='password_reset_complete'),

    url(r'^settings/password/$', auth_views.PasswordChangeView.as_view(template_name='password_change.html'),
        name='password_change'),
    url(r'^settings/password/done/$', auth_views.PasswordChangeDoneView.as_view(template_name='password_change_done.html'),
        name='password_change_done'),

    url(r'^boards/(?P<pk>\d+)/$', views.board_topics, name='board_topics'),
    url(r'^boards/(?P<pk>\d+)/new/$', views.new_topic, name='new_topic'),
    url(r'^admin/', admin.site.urls),
]

python manage.py makemigrations
python manage.py sqlmigrate boards 0001
python manage.py migrate

python manage.py shell

from boards.models import Board
board = Board.objects.create(name='Django', description='This is a board about Django.')
board = Board.objects.create(name='Python', description='General discussion about Python.')
board = Board.objects.create(name='Random', description='Here you can discuss about anything.')

boards_list = Board.objects.all()
for board in boards_list:
    print(board.description)

#accounts/forms.py
from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import User

class SignUpForm(UserCreationForm):
    email = forms.CharField(max_length=254, required=True, widget=forms.EmailInput())

    class Meta:
        model = User
        fields = ('username', 'email', 'password1', 'password2')

#boards/templatetags/form_tags.py
from django import template

register = template.Library()

@register.filter
def field_type(bound_field):
    return bound_field.field.widget.__class__.__name__

@register.filter
def input_class(bound_field):
    css_class = ''
    if bound_field.form.is_bound:
        if bound_field.errors:
            css_class = 'is-invalid'
        elif field_type(bound_field) != 'PasswordInput':
            css_class = 'is-valid'
    return 'form-control {}'.format(css_class)