Jinja2

Posted on 2013-10-29 21:56:46 +0900 in Technique Jinja2 Template

Variables

{{ foo.bar }}

{{ foo[‘bar’] }}

Implementation

Sake foo.bar in Jinja2 does the following thing on the Python layer:

  • check if there is an attribute called bar on foo.
  • if there is not, check if there is an item ‘bar’ in foo.
  • if there is not, return an undefined object.

foo[‘bar’] works mostly the same with a difference in the order:

  • check if there is an item ‘bar’ in foo.
  • if there is not, check if there is an attribute called bar on foo.
  • if there is not, return an undefined object.

###Filers### Variables can be modified by filters.
{{ name|striptags|title }} will remove all HTML Tags from the name and title-cases it.

###Tests### Tests can be used to test a variable against a common expression.

{% if loop.index is divisibleby 3 %}

###Comments###

{# note: disabled template because we no longer use this
{% for user in users %}
…
{% endfor %}
#}

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