django-templates-macros 0.3

Origin

The original code of this app is taken from https://djangosnippets.org/snippets/2892/ by MattP.

This snippets cites:

Based on snippet by
    Michal Ludvig <michal@logix.cz> http://www.logix.cz/michal
    http://djangosnippets.org/snippets/363/

Extended for args and kwargs into templatetags/kwacro.py by
    Skylar Saveland <michal@logix.cz> http://skyl.org
    https://gist.github.com/skyl/1715202

Modified to support rendering into context by matt@peloquin.com

Where

You can find this package here:

• Github repository: https://github.com/twidi/django-templates-macros

• Pypi package: https://pypi.python.org/pypi/django-templates-macros

Usage

0. Add this app “macros” to your INSTALLED_APPS

1. In your template load the library:

   {% load macros %}

2. Define a new macro called ‘my_macro’ that takes args and/or kwargs All will be optional:

   {% macro my_macro arg1 arg2 baz="Default baz" %}
       {% firstof arg1 "default_arg1" %}
       {% if arg2 %}{{ arg2 }}{% else %}default_arg2{% endif %}
       {{ baz }}
   {% endmacro %}

3. Use the macro with string parameters or context variables:

   {% usemacro my_macro "foo" "bar" baz="KW" %}
   <br>
   {% usemacro my_macro num_pages "bar" %}

Renders like:

foo bar KW
77 bar Default baz

4. Alternatively save your macros in a separate file, e.g. “mymacro.html” and load it to the current template with:

       {% loadmacros "mymacros.html" %}
   
   Then use these loaded macros in as described above.

Bear in mind that defined and loaded macros are local to each template file and are not inherited through {% extends … %} tags.

5. When recursive macros are needed, use the ‘recurse_macro’ template tag:

   {% macro MENU entries %}
   <ul>
       {% for entry in entries %}
       <li>
           <a href="{{ entry.link }}"> {{ entry.label }} </a>
           {% if entry.children %}
               {% recurse_macro MENU entry.children %}
           {% endif %}
       </li>
       {% endfor %}
   </ul>
   {% endmacro %}
   {% usemacro MENU menu.children %}