Submitting patches¶

Typo fixes and trivial documentation changes¶

If you are fixing a really trivial issue, for example changing a word in the documentation, the preferred way to provide the patch is using GitHub pull requests without a Trac ticket. Trac tickets are still acceptable.

See the Working with Git and GitHub for more details on how to use pull requests.

“Claiming” tickets¶

In an open-source project with hundreds of contributors around the world, it’s important to manage communication efficiently so that work doesn’t get duplicated and contributors can be as effective as possible.

Hence, our policy is for contributors to “claim” tickets in order to let other developers know that a particular bug or feature is being worked on.

If you have identified a contribution you want to make and you’re capable of fixing it (as measured by your coding ability, knowledge of Django internals and time availability), claim it by following these steps:

• Create an account to use in our ticket system. If you have an account but have forgotten your password, you can reset it using the password reset page.
• If a ticket for this issue doesn’t exist yet, create one in our ticket tracker.
• If a ticket for this issue already exists, make sure nobody else has claimed it. To do this, look at the “Assigned to” section of the ticket. If it’s assigned to “nobody,” then it’s available to be claimed. Otherwise, somebody else is working on this ticket, and you either find another bug/feature to work on, or contact the developer working on the ticket to offer your help.
• Log into your account, if you haven’t already, by clicking “Login” in the upper right of the ticket page.
• Claim the ticket:
  1. click the “accept” radio button under “Action” near the bottom of the page,
  2. then click “Submit changes.”

Patch style¶

Make sure that any contribution you do fulfills at least the following requirements:

• The code required to fix a problem or add a feature is an essential part of a patch, but it is not the only part. A good patch should also include a regression test to validate the behavior that has been fixed and to prevent the problem from arising again. Also, if some tickets are relevant to the code that you’ve written, mention the ticket numbers in some comments in the test so that one can easily trace back the relevant discussions after your patch gets committed, and the tickets get closed.
• If the code associated with a patch adds a new feature, or modifies behavior of an existing feature, the patch should also contain documentation.

You can use either GitHub branches and pull requests or direct patches to publish your work. If you use the Git workflow, then you should announce your branch in the ticket by including a link to your branch. When you think your work is ready to be merged in create a pull request.

See the Working with Git and GitHub documentation for mode details.

You can also use patches in Trac. When using this style, follow these guidelines.

• Submit patches in the format returned by the git diff command. An exception is for code changes that are described more clearly in plain English than in code. Indentation is the most common example; it’s hard to read patches when the only difference in code is that it’s indented.
• Attach patches to a ticket in the ticket tracker, using the “attach file” button. Please don’t put the patch in the ticket description or comment unless it’s a single line patch.
• Name the patch file with a .diff extension; this will let the ticket tracker apply correct syntax highlighting, which is quite helpful.

Regardless of the way you submit your work, follow these steps.

• Make sure your code matches our Coding style.
• Check the “Has patch” box on the ticket details. This will make it obvious that the ticket includes a patch, and it will add the ticket to the list of tickets with patches.

Non-trivial patches¶

A “non-trivial” patch is one that is more than a simple bug fix. It’s a patch that introduces Django functionality and makes some sort of design decision.

If you provide a non-trivial patch, include evidence that alternatives have been discussed on django-developers.

If you’re not sure whether your patch should be considered non-trivial, just ask.

Javascript patches¶

Django’s admin system leverages the jQuery framework to increase the capabilities of the admin interface. In conjunction, there is an emphasis on admin javascript performance and minimizing overall admin media file size. Serving compressed or “minified” versions of javascript files is considered best practice in this regard.

To that end, patches for javascript files should include both the original code for future development (e.g. foo.js), and a compressed version for production use (e.g. foo.min.js). Any links to the file in the codebase should point to the compressed version.

python django/contrib/admin/bin/compress.py