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Editing TracDev/ApiChanges/0.11
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[[PageOutline(2-4)]] = !TracDev/ApiChanges/0.11 = '''Note: Development of Trac [milestone:0.11] has started with r3804 and the trunk now uses ''[http://genshi.edgewall.org/ Genshi]'' instead of ClearSilver, for its template engine. Nevertheless, you should have in mind that the information in this page corresponds to a ''work in progress''.''' == Migrating away from Clearsilver == ClearSilver has proven a bit uncomfortable to work with, and search for better alternatives were done a few months ago. The [http://kid-templating.org/ Kid] templating language was unanimously found appealing, to the point cmlenz did a porting of Trac to Kid, during the DrProject fork. This in turn was found painful, and prompted Christopher to start his own, enhanced, version of Kid currently maturing as [http://genshi.edgewall.org/ Genshi]. The migration from ClearSilver to Genshi was done on trunk in r3832. You can start porting your plugins [TracDev/PortingFromClearSilverToGenshi from Clearsilver to Genshi]. == Date and Time Manipulations == Since r3935, Trac uses `datetime` objects internally, instead of timestamps. More precisely, the database layer still uses `int` timestamps, but manipulation of time values is now done on `datetime` objects as soon as possible, see e.g. the [source:trunk/trac/Timeline.py Timeline] module. Those `datetime` values are directly added by the controllers to the data model, and it's the responsibility of the ''templates'' to pick up the appropriate time representation, using one of the built-in date formatting utilities: `format_date`, `format_datetime`, `format_datetime`, `http_date`, `pretty_timedelta` (see [source:trunk/trac/chrome.py chrome.py]), or even the `$dateinfo()` macro. Those utilities automatically take into account the ''timezone'' information set by the user, so that the dates are presented in a meaningful way to him.
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