Commits

Pedro Ferreira  committed 4e1061a

*** url shortener ***

- you can add urls
- and list all the added urls

  • Participants

Comments (0)

Files changed (16)

+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "url_shortener.settings")
+
+    from django.core.management import execute_from_command_line
+
+    execute_from_command_line(sys.argv)

File shortener/__init__.py

Empty file added.

File shortener/admin.py

+from django.contrib import admin
+
+from shortener.models import UrlModel
+
+class UrlAdmin( admin.ModelAdmin ):
+
+    list_display = ('url', 'urlId')
+
+
+admin.site.register( UrlModel, UrlAdmin )

File shortener/forms.py

+from django import forms
+
+class UrlForm( forms.Form ):
+
+    url = forms.URLField( label= 'The url' )

File shortener/models.py

+from django.db import models
+
+# Create your models here.
+
+class UrlModel( models.Model ):
+
+    url = models.URLField()
+    urlId = models.URLField()
+
+    def getShortUrl( self ):
+        return 'url/' + str( self.urlId )
+
+
+
+

File shortener/tests.py

+"""
+This file demonstrates writing tests using the unittest module. These will pass
+when you run "manage.py test".
+
+Replace this with more appropriate tests for your application.
+"""
+
+from django.test import TestCase
+
+
+class SimpleTest(TestCase):
+    def test_basic_addition(self):
+        """
+        Tests that 1 + 1 always equals 2.
+        """
+        self.assertEqual(1 + 1, 2)

File shortener/views.py

+from django.shortcuts import render
+from django.http import HttpResponseRedirect
+from django.core.urlresolvers import reverse
+
+from shortener.forms import UrlForm
+from shortener.models import UrlModel
+
+def index( request ):
+
+    if request.method == 'POST':
+
+        form = UrlForm( request.POST )
+
+        if form.is_valid():
+            url = form.cleaned_data['url']
+            urlId = generate_url_id( url )
+
+            newUrl = UrlModel( url= url, urlId= urlId )
+            newUrl.save()
+
+            return HttpResponseRedirect( reverse( 'url_created', args= [ newUrl.getShortUrl() ] ) )
+
+    else:
+        form = UrlForm()
+
+    return render( request, 'index.html', { 'form': form } )
+
+
+
+def generate_url_id( url ):
+
+    length = len( UrlModel.objects.all() )
+
+    return str( length + 1 )
+
+
+def url_created( request, shortUrl ):
+
+    return render( request, 'url_created.html', { 'shortUrl': shortUrl } )
+
+
+def redirect_url( request, urlId ):
+
+    try:
+        url = UrlModel.objects.get( urlId= urlId )
+
+    except UrlModel.DoesNotExist:
+        return HttpResponseRedirect( reverse( 'doesnt_exist', args= [ urlId ] ) )
+
+    return HttpResponseRedirect( url.url )
+
+
+def doesnt_exist( request, urlId ):
+
+    return render( request, 'doesnt_exist.html', { 'urlId': urlId } )
+
+
+def urls_list( request ):
+
+    urls = UrlModel.objects.all()
+
+    return render( request, 'urls_list.html', { 'urls': urls } )

File templates/base.html

+<!DOCTYPE html>
+<html>
+<head>
+    <title></title>
+</head>
+<body>
+
+</body>
+</html>

File templates/doesnt_exist.html

+<!DOCTYPE html>
+<html>
+<head>
+    <title>Doesn't exist.</title>
+</head>
+<body>
+    <p>Couldn't find the url with this id: <em>{{ urlId }}</em>.</p>
+</body>
+</html>

File templates/index.html

+<!DOCTYPE html>
+<html>
+<head>
+    <title>Url shortener</title>
+</head>
+<body>
+
+<h1>Url Shortener</h1>
+
+{% if form.errors %}
+    <p>{{ form.errors }}</p>
+{% endif %}
+
+
+<form method="post" action="{% url 'shortener.views.index' %}">
+<div>{% csrf_token %}</div>
+
+    <table>
+        <tr>
+            <td>{{ form.url.label_tag }}</td>
+            <td>{{ form.url }}</td>
+        </tr>
+    </table>
+
+    <input type="submit" value="submit" />
+    <input type="hidden" name="next" value="{{ next }}" />
+</form>
+
+</body>
+</html>

File templates/url_created.html

+<!DOCTYPE html>
+<html>
+<head>
+    <title>Url created.</title>
+</head>
+<body>
+    <p>Url created: <em>{{ shortUrl }}</em></p>
+</body>
+</html>

File templates/urls_list.html

+<!DOCTYPE html>
+<html>
+<head>
+    <title>Urls list.</title>
+</head>
+<body>
+
+<ul>
+    {% for url in urls %}
+        <li><a href="{{ url.getShortUrl }}">{{ url.getShortUrl }}</a></li>
+    {% endfor %}
+</ul>
+
+</body>
+</html>

File url_shortener/__init__.py

Empty file added.

File url_shortener/settings.py

+# Django settings for url_shortener project.
+
+import os.path
+
+SETTINGS_DIR = os.path.dirname( os.path.abspath(__file__) )
+BASE_DIR = os.path.abspath( os.path.join( SETTINGS_DIR, '..' ) )
+
+DEBUG = True
+TEMPLATE_DEBUG = DEBUG
+
+ADMINS = (
+    # ('Your Name', 'your_email@example.com'),
+)
+
+MANAGERS = ADMINS
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
+        'NAME': os.path.join( BASE_DIR, 'db' ),                      # Or path to database file if using sqlite3.
+        # The following settings are not used with sqlite3:
+        'USER': '',
+        'PASSWORD': '',
+        'HOST': '',                      # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP.
+        'PORT': '',                      # Set to empty string for default.
+    }
+}
+
+# Hosts/domain names that are valid for this site; required if DEBUG is False
+# See https://docs.djangoproject.com/en/1.5/ref/settings/#allowed-hosts
+ALLOWED_HOSTS = []
+
+# Local time zone for this installation. Choices can be found here:
+# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
+# although not all choices may be available on all operating systems.
+# In a Windows environment this must be set to your system time zone.
+TIME_ZONE = 'America/Chicago'
+
+# Language code for this installation. All choices can be found here:
+# http://www.i18nguy.com/unicode/language-identifiers.html
+LANGUAGE_CODE = 'en-us'
+
+SITE_ID = 1
+
+# If you set this to False, Django will make some optimizations so as not
+# to load the internationalization machinery.
+USE_I18N = True
+
+# If you set this to False, Django will not format dates, numbers and
+# calendars according to the current locale.
+USE_L10N = True
+
+# If you set this to False, Django will not use timezone-aware datetimes.
+USE_TZ = True
+
+# Absolute filesystem path to the directory that will hold user-uploaded files.
+# Example: "/var/www/example.com/media/"
+MEDIA_ROOT = ''
+
+# URL that handles the media served from MEDIA_ROOT. Make sure to use a
+# trailing slash.
+# Examples: "http://example.com/media/", "http://media.example.com/"
+MEDIA_URL = ''
+
+# Absolute path to the directory static files should be collected to.
+# Don't put anything in this directory yourself; store your static files
+# in apps' "static/" subdirectories and in STATICFILES_DIRS.
+# Example: "/var/www/example.com/static/"
+STATIC_ROOT = os.path.join( BASE_DIR, 'static_root' )
+
+# URL prefix for static files.
+# Example: "http://example.com/static/", "http://static.example.com/"
+STATIC_URL = '/static/'
+
+# Additional locations of static files
+STATICFILES_DIRS = (
+    # Put strings here, like "/home/html/static" or "C:/www/django/static".
+    # Always use forward slashes, even on Windows.
+    # Don't forget to use absolute paths, not relative paths.
+    os.path.join( BASE_DIR, 'static' ),
+)
+
+# List of finder classes that know how to find static files in
+# various locations.
+STATICFILES_FINDERS = (
+    'django.contrib.staticfiles.finders.FileSystemFinder',
+    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
+)
+
+# Make this unique, and don't share it with anybody.
+SECRET_KEY = 'q@+rgmi(-xnc7pklk#ij3w^=$oqk!y3^$u40fgfme)^#@*!w!-'
+
+# List of callables that know how to import templates from various sources.
+TEMPLATE_LOADERS = (
+    'django.template.loaders.filesystem.Loader',
+    'django.template.loaders.app_directories.Loader',
+#     'django.template.loaders.eggs.Loader',
+)
+
+MIDDLEWARE_CLASSES = (
+    'django.middleware.common.CommonMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    # Uncomment the next line for simple clickjacking protection:
+    # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
+)
+
+ROOT_URLCONF = 'url_shortener.urls'
+
+# Python dotted path to the WSGI application used by Django's runserver.
+WSGI_APPLICATION = 'url_shortener.wsgi.application'
+
+TEMPLATE_DIRS = (
+    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
+    # Always use forward slashes, even on Windows.
+    # Don't forget to use absolute paths, not relative paths.
+    os.path.join( BASE_DIR, 'templates' ),
+)
+
+INSTALLED_APPS = (
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.sites',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    # Uncomment the next line to enable the admin:
+    'django.contrib.admin',
+    # Uncomment the next line to enable admin documentation:
+    # 'django.contrib.admindocs',
+    'shortener',
+)
+
+SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'
+
+# A sample logging configuration. The only tangible logging
+# performed by this configuration is to send an email to
+# the site admins on every HTTP 500 error when DEBUG=False.
+# See http://docs.djangoproject.com/en/dev/topics/logging for
+# more details on how to customize your logging configuration.
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'filters': {
+        'require_debug_false': {
+            '()': 'django.utils.log.RequireDebugFalse'
+        }
+    },
+    'handlers': {
+        'mail_admins': {
+            'level': 'ERROR',
+            'filters': ['require_debug_false'],
+            'class': 'django.utils.log.AdminEmailHandler'
+        }
+    },
+    'loggers': {
+        'django.request': {
+            'handlers': ['mail_admins'],
+            'level': 'ERROR',
+            'propagate': True,
+        },
+    }
+}

File url_shortener/urls.py

+from django.conf.urls import patterns, include, url
+
+# Uncomment the next two lines to enable the admin:
+from django.contrib import admin
+admin.autodiscover()
+
+urlpatterns = patterns('',
+    # Examples:
+    url(r'^$', 'shortener.views.index', name='index'),
+
+    url(r'^url_created/(?P<shortUrl>.*)$', 'shortener.views.url_created', name='url_created'),
+
+    url(r'^url/(?P<urlId>.*)$', 'shortener.views.redirect_url', name= 'redirect_url'),
+
+    url(r'^doesnt_exist/(?P<urlId>.*)$', 'shortener.views.doesnt_exist', name= 'doesnt_exist'),
+
+    url(r'^urls_list$', 'shortener.views.urls_list', name= 'urls_list'),
+
+    # Uncomment the next line to enable the admin:
+    url(r'^admin/', include(admin.site.urls)),
+)

File url_shortener/wsgi.py

+"""
+WSGI config for url_shortener project.
+
+This module contains the WSGI application used by Django's development server
+and any production WSGI deployments. It should expose a module-level variable
+named ``application``. Django's ``runserver`` and ``runfcgi`` commands discover
+this application via the ``WSGI_APPLICATION`` setting.
+
+Usually you will have the standard Django WSGI application here, but it also
+might make sense to replace the whole Django WSGI application with a custom one
+that later delegates to the Django one. For example, you could introduce WSGI
+middleware here, or combine a Django application with an application of another
+framework.
+
+"""
+import os
+
+# We defer to a DJANGO_SETTINGS_MODULE already in the environment. This breaks
+# if running multiple sites in the same mod_wsgi process. To fix this, use
+# mod_wsgi daemon mode with each site in its own daemon process, or use
+# os.environ["DJANGO_SETTINGS_MODULE"] = "url_shortener.settings"
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "url_shortener.settings")
+
+# This application object is used by any WSGI server configured to use this
+# file. This includes Django's development server, if the WSGI_APPLICATION
+# setting points here.
+from django.core.wsgi import get_wsgi_application
+application = get_wsgi_application()
+
+# Apply WSGI middleware here.
+# from helloworld.wsgi import HelloWorldApplication
+# application = HelloWorldApplication(application)