Accessing a dictionary in a template - a value is empty

Question

This prints, when the key k exists in key2, a empty link, meaning its href is empty. The real value of k in key2 isn't empty.

# data is a dictionary
{% for k, v in data.key1.items %}
  {% if k in data.key2 %}
    <h3><a href='{{data.key2.k}}'>{{k}}</a></h3> <!-- this generates <a href>fdsfdsd</a> -->
  {% else %}
    <h3>{{ k }}</h3>
  {% endif %}
{% endfor %}

How do I fix it?

I have no idea what you are asking. are you saying "k is in data.key2, but when you write {{ data.key2.k }}, it does not print anything?" — Cheng, May 13 '15 at 06:58
`k` is among keys in `key2` dictionary, but id doesn't mean, that `key2[k]` is not an empty string. — Konstantin, May 13 '15 at 07:00
if data is a dictionary, then `for k, v in data.items` should be used instead of `data.key1.items` — Cheng, May 13 '15 at 07:07
This link might be helpful: http://stackoverflow.com/questions/8000022/django-template-how-to-lookup-a-dictionary-value-with-a-variable — Cheng, May 13 '15 at 07:14

score 2 · Accepted Answer · edited May 23 '17 at 12:14

2

{{data.key2.k}} is accessing the key 'k' in data.key2 which is probably not what you intended. There is now way to do dictionary lookups by a variable in django templates.

One solution would be a custom template filter like suggested here: Django template how to look up a dictionary value with a variable

edited May 23 '17 at 12:14

Community

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answered May 13 '15 at 07:10

cbergmiller

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Accessing a dictionary in a template - a value is empty

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