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flask_caching.jinja2ext
~~~~~~~~~~~~~~~~~~~~~~~
Jinja2 extension that adds support for caching template fragments.
Usage::
{% cache timeout key1[, [key2, ...]] %}
...
{% endcache %}
By default, the value of "path to template file" + "block start line"
is used as the cache key. Also, the key name can be set manually.
Keys are concatenated together into a single string, that can be used
to avoid the same block evaluating in different templates.
Set the timeout to ``None`` for no timeout, but with custom keys::
{% cache None "key" %}
...
{% endcache %}
Set timeout to ``del`` to delete cached value::
{% cache 'del' key1 %}
...
{% endcache %}
Considering we have ``render_form_field`` and ``render_submit`` macros::
{% cache 60*5 'myform' %}
{% endcache %}
:copyright: (c) 2010 by Thadeus Burgess.
:license: BSD, see LICENSE for more details.
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