I do a few webprojects with
Flask
and I love it!
While creating a template i searched for a way to call functions from within the template, and found out that i can use a @app.context_processor decorator.
@app.context_processor
def my_utility_processor():
def date_now(format="%d.m.%Y %H:%M:%S"):
""" returns the formated datetime """
return datetime.datetime.now().strftime(format)
def foo():
""" returns bulshit """
return "bar bar bar"
return dict(date_now=date_now, baz=foo)
In the jinja2 template you can now simply call the functions like this:
{% raw %}
{% for n in news %}
Give me some {{ baz() }}!
{% endfor %}
Copyright by me 2005 - {{ date_now("%Y") }}
{% endraw %}
Lets assume news contains 2 elements, the result looks like this:
Give me some bar bar bar!
Give me some bar bar bar!
Copyright by me 2005 - 2013
The important part is return dict(date_now=date_now, baz=foo). The first word is the key, the value is a function pointer.
The key is the keyword you write in your template code {{ baz() }} for example, foo is the name of the function that get called.