Expose level tag (debug, info, warning) on messages

[sjoerd-django@…]

Messages in the messages framework have a level, like debug, info or warning. It would be nice if this level was accessible in the view, so that it can be used in a class name. For example, Twitter Bootstrap has
an alert-info class. This class could be added to the message using class="alert-{{ message.level_tag }}".

The existing extra_tags functionality does not provide for this, because the level_tag is on the end. When using class="alert-{{ message.extra_tags }}" it will only work when no extra tags are given.

I have made a pull request for this here: ​https://github.com/django/django/pull/1891

[Baptiste Mispelon]

Hi,

This looks like an interesting addition.

The pull request looks good but it's lacking documentation. The new feature should be described in the messages framework documentation and a release note should be added for the 1.7 release.

I'm adding the "patch needs improvement" flag for this reason. You can remove it when you update the pull request.

Thanks.

[sjoerd-django@…]

I have modified the code according to your remarks and I added some documentation. Any feedback on the documentation is welcome.

[Baptiste Mispelon <bmispelon@…>]

In d87127655f540747e7dc83badc015ea520b880f5:

Fixed #21421 -- Added level_tag attribute on messages.

Exposing the level name (e.g. "info") makes it possible to prepend
something to the class name. For example, Twitter Bootstrap has
an alert-info class. This class can now be added to the message
using `class="alert-{{ message.level_tag }}".
Because the level_tag was on the end of the tags property, it
could not be used in this fashion when extra_tags were given.