[ECODP-dev] handover questions

Mon Oct 21 13:44:50 UTC 2013

Hi John,

thanks for the answers, I will forward them to the handover party.

kind regards,

Bert

2013/10/17 John Glover <john.glover at okfn.org>

> Hi Bert,
>
>
>> Q1: How works the CKAN statistics collecting,
>>
>
> When a user visits page, an AJAX request is made to /_tracking. Accessing
> this url logs (in the tracking_raw database table) that a given user key
> accessed a specific url at a specific time. A user key is a hash of the
> HTTP_USER_AGENT, REMOTE_ADDR, HTTP_ACCEPT_LANGUAGE and HTTP_ACCEPT_ENCODING
> fields.
>
> When the paster tracking update command is run, the number of hits (user
> key requests) on each url (bucketed by day) is inserted into the
> tracking_summary database table. For each url, this also includes a running
> total of the current number of views so far, and the number of recent views
> (which is hardcoded to be views in the last 2 weeks).
>
> By default the tracking update command does not go through the entire
> tracking_raw database each time, it just updates the counts starting with 2
> days before the most recent date that already exists in the
> tracking_summary table.
>
> To output the stats, the figures are simply read from the tracking_summary
> table and saved to a CSV file.
>
>
>
>> how the collected information is used?
>>
>
> I'm not sure what you mean here, how they are used seems to be up to
> whoever is running the server. Can you elaborate?
>
>
>
>> Q2:How works the CKAN rdf module? how to configure it in case of data
>> model changes?
>>
>>
> This is also a very broad question so I am not really sure what
> information you are looking for here. Can you be more specific?
>
> Some general points:
>
> * if the RDF field is present in the JSON object that is sent to create a
> dataset using the API, this will simply be returned when you request the
> RDF version of a dataset. If not, CKAN will generate an RDF version from a
> fixed template.
>
> * The CKAN RDF template can be found at
> ckanext-ecportal/ckanext/ecportal/templates/package/custom_read.rdf [1]. If
> the data model changes and you need to change the RDF, this template must
> be edited by hand to reflect the new model. Also, the data in the database
> will have to be updated for all datasets that supplied their own RDF in the
> JSON.
>
> [1]
> https://github.com/okfn/ckanext-ecportal/blob/master/ckanext/ecportal/templates/package/custom_read.rdf
>
> Regards,
> John
>
> _______________________________________________
> Ecodp-dev mailing list
> Ecodp-dev at lists.okfn.org
> http://lists.okfn.org/mailman/listinfo/ecodp-dev
>
>

-- 
Bert Van Nuffelen

Semantic Technologies Software Architect at TenForce
www.tenforce.be

Bert.Van.Nuffelen at tenforce.com
Office: +32 (0)16 31 48 60
Mobile:+32 479 06 24 26
skype: bert.van.nuffelen
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.okfn.org/mailman/private/ecodp-dev/attachments/20131021/2f7f045d/attachment.html>