On 18 déc, 18:31, marco ghidinelli <marc...@gmail.com> wrote:
> hello.
>
> Does django template engine supports nested dictionary?
Yes, indeed.
> i'm trying to display a nested array with no luck.
>
> that's my tries:
>
> ------------------- python manage.py shell -------------------
> from django.template import Template, Context
> list_parts = {
> 'root': {'value': [{'tag': 'a'},{'tag':'b'}]},
> 'wheel': {'value': [{'tag': 'c'}, ]}
>
> }
Why do you name it "list_" when it's a dict ?
> t = Template("""
> {% for part in list_parts %}
This will iterate over the keys. If you want key:values pairs, you
have to spell it:
{% for partname, partvalue in list_parts.items %}
Also, remember that Python dicts are _not_ ordered. If order matters,
use a list of (name, value) tuples instead.
> <fieldset>
> <legend>{{part}}</legend>
> <ul>
> {% for subpart in part %}
Here, "part" is the key (a string).
> <li>{{ subpart }}</li>
> {% endfor %}
> </ul>
> </fieldset>
> {% endfor %}
> """)
>
> c=Context({'list_parts':list_parts})
> print t.render(c)
> --------------------------------------------------------------
>
> i tried every possible combination of
>
> {% for subpart in part %}
> {% for subpart in part.part %}
> {% for subpart in list_parts.part %}
>
> but i'm not able to show the information.
>
> where i am wrong?
google for "programming by accident" (a well known antipattern FWIW).
> /me hopeless.
Here's a working version, with a simpler data structure:
from django.template import Template, Context
list_parts = [
('root', [{'tag': 'a'},{'tag':'b'}]),
('wheel', [{'tag': 'c'}, ]),
]
t = Template("""
{% for partname, tags in list_parts %}
<fieldset>
<legend>{{partname}}</legend>
<ul>
{% for tag in tags %}
<li>{{ tag.tag }}</li>
{% endfor %}
</ul>
</fieldset>
{% endfor %}
""")
c=Context({'list_parts':list_parts})
print t.render(c)
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