First Commit

accounts/admin.py

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+from django.contrib import admin
+
+# Register your models here.

accounts/apps.py

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+from django.apps import AppConfig
+
+
+class AccountsConfig(AppConfig):
+    name = 'accounts'

accounts/models.py

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+from django.db import models
+
+# Create your models here.

accounts/templates/login.html

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+{% extends 'base.html'%}
+
+{% block content %}
+
+{% if error %}
+{{ error }}
+<br />
+<br />
+
+{% endif %}
+
+
+
+<h1> Log In </h1>
+
+<form method="POST" action="{% url 'login' %}">
+    {% csrf_token %}
+    Username:
+    <br />
+    <input type="text" name="username" placeholder="username">
+    <br />
+    Password:
+    <br />
+    <input type="password" name="password" placeholder="password">
+    <br />
+    <br />
+    <input  class="btn btn-primary "type="submit" value="Log In"/>
+    
+
+
+
+</form>
+
+{% endblock %}

accounts/templates/signup.html

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+{% extends 'base.html'%}
+
+{% block content %}
+
+{% if error %}
+{{ error }}
+<br />
+<br />
+
+{% endif %}
+
+
+
+<h1> Sign Up</h1>
+
+<form method="POST" action="{% url 'signup' %}">
+    {% csrf_token %}
+    Username:
+    <br />
+    <input type="text" name="username" placeholder="username">
+    <br />
+    Password:
+    <br />
+    <input type="password" name="password1" placeholder="password">
+    <br />
+    Confirm Password:
+    <br />
+    <input type="password" name="password2" placeholder=" confirm password">
+    <br />
+    <br />
+    <input  class="btn btn-primary "type="submit" value="Sign Up"/>
+    
+
+
+
+</form>
+
+{% endblock %}

accounts/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

accounts/urls.py

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+
+from django.urls import path,include
+from . import views
+urlpatterns = [
+    path('signup',views.signup, name='signup'),
+    path('login',views.login, name='login'),
+    path('logout',views.logout, name='logout'),
+]
+

accounts/views.py

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+from django.shortcuts import render,redirect
+from django.contrib.auth.models import User
+from django.contrib import auth
+
+# Create your views here.
+def signup(request):
+    if request.method =='POST':
+        if request.POST['password1'] == request.POST['password2']:
+            try:
+                user=User.objects.get(username=request.POST['username'])
+                return render(request,'signup.html',{'error':'Username has been already taken '})
+            except User.DoesNotExist:
+                user=User.objects.create_user(request.POST['username'],password=request.POST['password1']) 
+                auth.login(request,user)
+                return redirect('home')   
+        else:
+            return render(request,'signup.html',{'error':'Passwords must match'})
+
+
+    else:
+        return render(request,'signup.html')
+
+def login(request):
+    if request.method =='POST':
+        user=auth.authenticate(username=request.POST['username'],password=request.POST['password'])
+        if user is not None:
+            auth.login(request,user)
+            return redirect('home')
+        else:
+            return render(request,'login.html', {'error':'username or password is invalid.'})    
+    else:
+        return render(request,'login.html')
+
+def logout(request):
+    if request.method =='POST':
+        auth.logout(request)
+        return redirect('home')
+    
+
+    
+