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Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 PointsWhy is the Django template syntax so different from Python?
For example:
{{ course.created_at|date:"m/d/y" }}
- filter gets chained on with a pipe rather than dot
- arguments to the filter go after a colon rather than inside parentheses
Are there functional or historical reasons for this? Just curious.
2 Answers
Chris Freeman
Treehouse Moderator 68,423 PointsOne reason for a different Django filter syntax is to differentiate the functionality to access attributes and bound methods to the Python object in the variable and the Django template functionality. The Django filters run on the output of the Python object methods and attributes.
In the docs for writing custom filters, besides the filtered object, the filter take a single argument.
The colon (:) indicates whether the filter takes an argument. The reasons behind it aren't clear, but to me, by not using parens it makes it clearly not a regular python function.
jason chan
31,009 PointsThat's how frameworks work. It's the same for javascript - angularjs, php - laravel has similar syntax
{{ $var }}
Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 PointsDo they also use the pipe and the colon the same way?