Using Django registration with a Flat UI template

Question 1

You can use django registration together with custom html/css through django forms. Here are the steps:

Provided you have included relevant imports, your urls.py looks fine so no changes needed.
Create a forms.py file in the same folder as your views.py and add the following code into forms.py:

from django import forms

class Signup_form(forms.Form):
    # CSS styles should not be inline. i've moved your style contents under a 'form-control' class
    name = forms.CharField(max_length=100, widget=forms.TextInput(attrs={'type':'text', 'placeholder':'Enter your name', 'id':'name', 'name':'name', 'class' : 'form-control'}))
    email = forms.EmailField(label="Email address", widget=forms.TextInput(attrs={'type':'text', 'placeholder':'Your E-mail', 'id':'email', 'name':'email', 'class' : 'form-control'}))
    pass1 = forms.CharField(max_length = 20, widget=forms.TextInput(attrs={'type':'password', 'placeholder':'Password', 'id':'pass1', 'name':'pass1', 'class' : 'form-control'}))
    pass2 = forms.CharField(max_length = 20, widget=forms.TextInput(attrs={'type':'password', 'placeholder':'Confirm Password', 'id':'pass2', 'name':'pass2', 'class' : 'form-control'}))

3.In your views.py file, you have to link pass the Signup_form to your views layer. Change your views.py file to the following:

from forms import Signup_form

def signup(request):
    form = Signup_form()

    name = request.POST.get('name','')
    email = request.POST.get('email', '')
    pass1 = request.POST.get('pass1', '')
    pass2 = request.POST.get('pass2', '')

    # Do some validations here

    user = User.objects.create_user(name, email, pass2)
    if user:
        user.save()

    return render(request, 'signup.html', {'form': form})

4.Now that you have passed your Signup_form object in views layer, you can use django template tags to display them in your signup.html page. Here's how your signup.html could look like:

{% extends "base.html" %}

    <link rel="stylesheet" href="{% static 'css/custom.css' %}">
{% block title %}Signup page{% endblock %}

{% block content %}

<div class="container" style="width:500px">
    <h3 style="margin-top:100px">Sign Up</h3> 
    <hr>
    <div class="login-form">

    <form action="" method="post"> {% csrf_token %}
        <div class="control-group span3" style="width:400px" >
            {{ form.name.errors }}
            {{ form.name }}
            <i class="input-icon fui-user" for="login-name"></i>
    </div>

    <div class="control-group span3" style="width:400px" >
        {{ form.email.errors }}
        {{ form.email }}
        <i class="input-icon fui-mail" for="login-name"></i>
    </div>

    <div class="control-group span3" style="width:400px">
        {{ form.pass1.errors }}
        {{ forms.pass2 }}
        <i class="input-icon fui-lock" for="login-pass"></i>
    </div>


    <div class="control-group span3" style="width:400px">
        {{ form.pass2.errors }}
        {{ forms.pass2 }}
        <i class="input-icon fui-lock" for="login-pass"></i>
    </div>

    <div style="text-align:center"> 
        <input type="submit" class="btn btn-hg btn-primary btn-wide" value="Sign Up">
        <!--<a class="login-link" href="#">Lost your password ?</a> -->
    </div>
</form>

</div><!-- /login-form -->

</div> <!-- /container -->


{% endblock content %}

5.Since i have earlier moved your CSS styles(in point 2) into a 'form-control' class, now we will place it back by adding your styles in a external custom.css file. Create a custom.css file in the directory static/css/custom.css and add the following into it:

.form-control {
width:400px;
padding-bottom:15px;
margin-bottom:10px;
}

Question 2

In your Views.py

from django.contrib.auth.models import User

def signup(request):

    username = request.POST.get("name","")
    password = request.POST.get("pass","")
    login_pass = request.POST.get("login-pass","")
    email = request.POST.get("email","")
    if username != "" or password != "" or login_pass != "":
        #do some validations

    user = User.objects.create_user(username, email, password)
    if user:
        user.is_active = True
        user.save()
    return render(request, 'signup.html')

Above code will register a new user into system

If you would have use Django forms then all the validations will be done by Django.

Note: Please add name attribute to your HTML fields required for getting vaLues in request.POST. Also point your HTMl form action to "signup" view