Doesn't work custom login page in django 1.7 - django

Question

I want to create my own login page uses the e-mail address and password in django 1.7.
When complete box and I click "login" page back to the login page.
My view:
def get_user_by_email(email):
try:
return User.objects.get(email=email)
except User.DoesNotExist:
return None
def login_by_email(request):
email = request.POST.get('email')
password = request.POST.get('password')
username = get_user_by_email(email)
user = authenticate(username=username, password=password)
if user is not None:
if user.is_active():
login(request, email)
return HttpResponseRedirect(reverse("myapp:dashboard"))
return render_to_response('myapp/login.html', context_instance=RequestContext(request))
My url:
url(r'^login/$', views.login_by_email, name='login'),
My template login.html
{% block content %}
<form class="form-horizontal" name="LoginForm" action="{% url 'myapp:login' %}" method="post">
{% csrf_token %}
<div class="control-group">
<label class="control-label" for="email">Email</label>
<div class="controls">
<input type="text" id="email" value="{{email}}" placeholder="Email">
</div>
</div>
<div class="control-group">
<label class="control-label" for="password">Password</label>
<div class="controls">
<input type="password" name="password" id="password" placeholder="Password">
</div>
</div>
<div class="control-group">
<div class="controls">
<button type="submit" class="btn">Login</button>
</div>
</div>
</form>
{% endblock %}

Answer 1

This line:
username = get_user_by_email(email)
Should be:
user_instance = get_user_by_email(email)
if user_instance:
username = user_instance.username
You are passing the user object to authenticate and it isn't able to log the user in.
Also, when you call the login function, you should pass the user as parameter:
login(request, user)
You are currently passing the email (django can't handle it this way)
Refer to the auth docs for more detail on how to handle custom login mechanisms
EDIT: Here's the complete view code
def get_user_by_email(email):
try:
return User.objects.get(email=email)
except User.DoesNotExist:
return None
def login_by_email(request):
email = request.POST.get('email')
password = request.POST.get('password')
user_instance = get_user_by_email(email)
if user_instance:
username = user_instance.username
user = authenticate(username=username, password=password)
if user is not None:
if user.is_active:
login(request, user)
return HttpResponseRedirect(reverse("myapp:dashboard"))
return render_to_response('myapp/login.html', context_instance=RequestContext(request))