Accessing dict values via a value of a variable as hash

[uggsrock]

In the current release (and previous releases also) there is no way to access the value of a dict or other struct with the value of a variable as the hash. For example if you want to have more than one struct you want to iterate over and get a key-value-based table with the data of other structs in it, you either have to do it manually inside the normal python code or with very ugly filters.


Here is a simple example i mentioned before:
(we have dictionary1 and dictionary2 with the same size and keys)

{% for key,value in dictionary1.items %}
<li>{{key}}: {{value}}, {{dictionary2.key}}</li>
{% endfor %}

This wouldn't work because it would search for dictionary2.key or dictionary[ "key" ] (so key is the string "key", not a variable)

But to get example working you would need it to call dictionary[ key ] whereas the key is a variable and its value would be used as a hash.
Most solution with filters look this way:

@register.filter
def hash(h, key):
    return h[key]

(took this one from ​http://push.cx/2007/django-template-tag-for-dictionary-access

As you see, there is just this ugly (and by the way also slow) way through filters but no real one the template engine should provide itself. Therefore i would suggest to take something like "dict[ var ]" or "dict[ inner_dict[ var ] ]" as the shortcut for the template engine to provide this usefull feature.