Django templates accessing dictionary from another dictionary key

manpreet Best Answer 2 years ago

Seems trivial, but I'm iterating a dictionary, accessing another dictionary from the id key of that dict. Example:

{% for choice in choices %}
  {{ percentages[choice.id] }}
{% endfor %}

As in:

for choice in choices:
  percentages[choice.id]

Though I get a Django error:

Could not parse the remainder: '[choice.id]' from 'percentages[choice.id]'

Which I thought may work. I tried researching and changing [choice.id] into |get:choice.id as a potential resolution, but that also gave me another unhelpful error.

manpreet 2 years ago

You cannot access dictionary dices">indices from django">django template. You have to register a custom template tag like this.

@register.filter
def from_dict(d, k):
    return d[k]

And use it like this.

{% for choice in choices %}
  {{ percentages|from_dict:choice.id }}
{% endfor %}