Question

Django template language has so many features:
https://docs.djangoproject.com/en/dev/ref/templates/builtins/?from=olddocs

But I’ve been having trouble finding one. I have a dictionary in python which is sent to the HTML document.

Dictionary: hello = {'a':100, 'b':200, 'c':300, etc:etc}

In the HTML file, if I do this: {{a}} the number 100 is outputted.

Now I was wondering, if it is at all possible to use Django templates to add a character for the 100 and all other values. So like a filter that changes the output from 100 200 300 etc into 10a0 20a0 30a0 etc or even 1.00 2.00 3.00 etc. The closest I’ve found is the add built-in feature {{ value|add:"2" }} so {{ 4|add:"2" }} would give you 6.

Thanks for reading this, I’d appreciate any help!

Answer 1

If you really want to do this in template, here is what you can try:

 {% for d in a|make_list %}{{d}}{%if forloop.counter == 1 %}.{%endif%}{%endfor%}

But this is ugly!

I would suggest to write a simple template filter to appropriately transform the value.

For example:

# sample filter
def todollars(value):
    val = int(value)
    return "%.2f" % val/100.0

in template use it as:

{{ a|todollars }}

This would give you value as 1.00 when value is 100.

More help on how to write, register template filters here.