[ckan-dev] Tag Frequency List for Tag Cloud

Thu May 8 12:11:37 UTC 2014

Thank you, Stéphane. The tag cloud works like a charm thanks to your advice.

Rodrigo

2014-05-07 10:37 GMT-04:00 Stéphane Guidoin <stephane at opennorth.ca>:

> Hey Rodrigo,
>
> Yes, there is a way to get the tag count with get_facet_items_dict applied
> to tags, see below
>
> {% set tags = h.get_facet_items_dict('tags', limit=20) %}
>
> In each tag item, you will have count attribute that gives you the number
> of time the tag is used.
>
> Steph
>
>
>
> On Wed, May 7, 2014 at 10:27 AM, Rodrigo Parra <rodpar07 at gmail.com> wrote:
>
>> Hello all,
>>
>> I'm trying to implement a tag cloud similar to the one that can be found
>> at: http://opendatahub.it/
>> I've looked around and could not find the server side source code for
>> this feature.
>>
>> Anyway, I need a JSON tag frequency list from the server, like this one:
>>
>> cloud =
>> [{"text":"popolazione","size":"621"},{"text":"ambiente","size":"553"},{"text":"territorio","size":"362"},{"text":"cartografia","size":"328"},{"text":"energia","size":"317"},{"text":"2012-2013","size":"306"},{"text":"statistica","size":"301"},{"text":"2006-2011","size":"248"},{"text":"turismo","size":"233"},{"text":"commercio","size":"229"},{"text":"formazione","size":"60"}];
>>
>> I was thinking about exposing this functionality by implementing the
>> *IActions* interface.
>> I can use the *package_search *action to get all datasets with their
>> tags, and compute the frequency list myself.
>>
>> However, I think this approach might not scale well, as it could become
>> quite resource consuming with a big number of datasets. Therefore, my
>> question is:
>>
>> Does anyone has any suggestions regarding a better approach to get the
>> frequency list? Is there any API action I'm missing?
>>
>> Thanks in advance,
>> Rodrigo
>>
>> _______________________________________________
>> ckan-dev mailing list
>> ckan-dev at lists.okfn.org
>> https://lists.okfn.org/mailman/listinfo/ckan-dev
>> Unsubscribe: https://lists.okfn.org/mailman/options/ckan-dev
>>
>>
>
>
>
> _______________________________________________
> ckan-dev mailing list
> ckan-dev at lists.okfn.org
> https://lists.okfn.org/mailman/listinfo/ckan-dev
> Unsubscribe: https://lists.okfn.org/mailman/options/ckan-dev
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.okfn.org/pipermail/ckan-dev/attachments/20140508/bc408f07/attachment-0003.html>