why can't Pawtucket find the paintings configured in Providence?

Abra

I have successfully deployed Providence and Pawtucket, both of which can be accessed normally. Providence has created several media objects (some paintings), and they can be queried and displayed normally in Providence. However, nothing can be found in Pawtucket. I originally thought it might be due to the database not connecting properly, so I deliberately changed the password in Pawtucket's configuration file, and Pawtucket reported an error indicating that the database connection could not be established, which means the database connection is normal. So why can't Pawtucket find the paintings configured in Providence? I've seen people discussing that the PHP version needs to be above 8? I see that my PHP version is as follows, do I need to upgrade my PHP? Thank you.

[@instance-20240703- ~]$ php -v
PHP 7.4.33 (cli) (built: Jun 5 2024 04:54:25) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.33, Copyright (c), by Zend Technologies

darrigan

Hi,
At first, check if your media representations have their Access set to "accessible to public".

monica

As @darrigan says, check the access restriction on the media representation, but also on the object record itself. The object record needs to be public to show up in Pawtucket, the media representation needs to be public to show the picture.

Abra

Thank you for your reply.

I have set up a Photograph in Providence with the following settings: The Record Admin has been set to accessible to the public, and in the basic information of the media, it has also been set to access to the public. However, Pawtucket still cannot find my Photograph when using browse and advanced search.

Am I missing something?

I also don't quite understand: "As @darrigan says, check the access restriction on the media representation, but also on the object record itself. The object record needs to be public to show up in Pawtucket, the media representation needs to be public to show the picture."

What is the difference between media representation and object record, as well as the difference between show up in Pawtucket and show the picture?

I would like to continue to seek advice, thank you all!

darrigan

Hi,
An "object record" can be linked to multiple "media representations". (Also, we could have the same "media representation" linked with two differents objects.)
For example: a vintage computer (object) is illustrated by 5 photographies and 1 video (media representations). To be visible in the pawtucket part, my vintage computer had to be "accessible to public". But the photographies and video also have to be "accessible to public" if I want that everybody can see these medias.
Also, I could choose to put some photographies linked to an object that will not be "accessible to public", but only for restricted users, or just accessible for adminstrators/curators, and not for public people. For example: an "object record" of an artistic creation could be linked with some photographies including a scan of certificate of authenticity, but we could choose that the certificate is not public, only visible by curators.
That's why the visibility status of "media representations" are independent of the visibility status of objects. (And in a same manner, for "places", "entities" (people), "occurrences" (events), or other kind of records.)

In your specific case, you can consider that the physical "object" (an argentic photography) is the same thing that "media representation" (the image of that argentic photography). But you can consider that the physical object "argentic photography" could have two associated media representations: 1. the scan of the photography itself, 2. the scan of the back, where you could have some handwritten annotations.. why not!

Consider that a "media representation" can be an image, a video, a PDF document, or a sound... And this record can be linked to one or multiple objects records.

Abra

darrigan

I am very grateful for your patient explanations, and I have tried my best to understand, but I still don't understand this theory.

I have done my best to search for the 'accessible to public' setting on the Providence page, but I really can't find where else to set it.

Just when I was feeling very desperate, I opened Pawtucket and found that the settings had been successful. It seems that it takes a bit of time (or perhaps patience?) for the settings to take effect. Haha, thank you all! I will continue to study! Wishing you the best!

darrigan

Maybe it's an effect of cache files. You can: 1. disable the cache to see changes immediatly, or 2. delete caches files when you want to see changes.
For 1.: edit configuration file app.conf and change this:
do_content_caching = 0
For 2.: in a terminal, go to support/bin/ directory and enter command line instruction:
./caUtils clear-caches

Abra

darrigan Thanks. I've learned two more tricks. CA is really great. Where can I find more learning materials? It feels like the content on the official website is not that detailed. Thanks!