Easily store and display tweets from a set of users or tweets about a given topic
django-carson makes it easy to store and display tweets from a set of users or tweets about a given topic.
For an idea of how django-carson can be used, take a look at TweetNevada.
The basic idea is you’ll have a set of Twitter accounts you want to follow (e.g., Nevada lawmakers) and a set of common hashtags and/or keywords (e.g., #nvleg) used by the community to engage in a collective conversation about a given topic. When combined on the same page, you get a very interesting and dynamic conversation taking place.
$ mkvirtualenv --no-site-packages example_website $ pip install django-carson
Add carson to your INSTALLED_APPS
Create the database tables with syncdb (or migrate carson if you use South)
To access the Twitter Streaming API, you must first create the appropriate tokens.
First, create a new application. Then, click “Create my access token.”
Add the following values to settings.py
Via the admin interface, add your accounts and hashtags/keywords.
Note: You’re not required to add both accounts and hashtags/keywords. If you want, you could design a site that only stored hashtag mentions or only tweets sent by your given set of users.
If you added any accounts, you must either run ./manage.py lookup_twitter_ids or use the “Lookup Twitter IDs” admin action before the next step will work. If you only added hashtags or keywords, you don’t need to do this.
$ ./manage.py get_tweets
This will open a connection to the Twitter Streaming API and immediately after one of your accounts posts a tweet or a tweet is created mentioning one of your tags, that tweet will be stored.
django-carson is only a bridge between Django and the Twitter Streaming API. It is the web developer’s job to wire up the views and templates needed to actually display the data.
The main entry point for any developer using carson is likely to be carson.models.Tweet. This model holds all tweets stored with get_tweets.
Each carson.models.Tweet object has four attributes:
- A ForeignKey pointing to the carson.models.Account that created the tweet, if applicable. Will be None if the tweet didn’t come from an account listed in carson.models.Account.
- The UTC timestamp of the tweet.
- The unique status id for each tweet. This is also in data[‘id’], but this allows an index to be created for it.
- Stores the complete JSON object associated with the tweet. You can see what all is included in this attribute here.
Attached to carson.models.Tweet are three managers:
- Returns a QuerySet of all tweets
- Returns only the tweets associated with a carson.models.Account. In other words, Tweet.account != None.
- Returns only the tweets not associated with a carson.models.Account. In other words, Tweet.account == None.
A simple index view exists in carson.views.index which grabs the 20 most recent trusted and untrusted tweets and renders carson/index.html (with the context variables trusted and untrusted). Might be useful if your website isn’t too complex.
If you seem to be having problems accessing the Twitter API, you can set HTTP_DEBUG to True in settings.py. By default it is False.