Rate your favorite beer!
Python
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RateBeers

RateBeers is a very simple, relatively ugly Django application.

Use Case Description

Using RateBeers, you can vote for your favorite beers! The homepage shows a list of popular beers, along with their current likes and dislikes.

Clicking ‘Like’ or ‘Dislike’ will register your vote. You can also click on the title of the beer to view only that beer and send the link to your friends.

Installation

If your system has python 2.7 installed, installation should be very easy:

git clone <repository>
cd <directory>
sudo easy_install pip
sudo pip install -r requirements.txt
python manage.py syncdb
python manage.py runserver

You can now visit http://localhost:8000/ to view and rate your beers!

Code overview

RateBeers is written in Python, using the Django framework. This is a quick overview of how a Django application works:

Models

Models define the data and represent the information stored in the database. We have one model, Beer, which is located in ratebeers/beers/models.py.

Views

Views are Python functions that perform an action or calculate a result in response to an HTTP request. These are located in ratebeers/beers/views.py. They are mapped to specific URLs via ratebeers/urls.py.

Generally, a view renders a template to generate HTML at the end of the function. When it does that, it passes a “context” dictionary to the template, which provides data that the template can use.

Templates

Django templates are just HTML with a little extra syntax. Anything inside of {{ }} is calculated using the context provided by the view and is output into the HTML. Anything inside {% %} is also interpreted specially, but not output directly. {% %} can be used for for…in loops, etc.

Static files

Images, CSS, JavaScripts, etc. are all located in ratebeers/beers/static/. If you add an item to the static directory, you can get its URL in a template via {% static path/to/item %}.

Django & Python Links