[Building Sakai] Help on how to query Sakai database

Steve Swinsburg steve.swinsburg at gmail.com
Sun Jul 27 15:15:40 PDT 2014


Sorry just saw this. Yes use the sakai user uuid.

sent from my mobile device
On 17/07/2014 12:50 AM, "Virgílio Santos" <virgilio.santos at gmail.com> wrote:

> Thank you guys. I had the feeling it would not be cool to query the
> database directly and I appreciate the help! I will give some thinking
> about ways to do that in a clean way.
>
> But I fell down in another problem which is what the best way to use
> the Sakai User on my hbm mapping files and my project as a whole. For
> now, I'm just putting an id that will reference the Sakai user but I
> don't if it's the best way. Is there an official way to use Sakai
> entities as foreign keys on my tool database?
>
> Thanks!
>
> On Wed, Jul 9, 2014 at 6:26 PM, Steve Swinsburg
> <steve.swinsburg at gmail.com> wrote:
> > Reiterating what Mark said, you should not manipulate the db directly.
> Reads
> > are more acceptable though.
> >
> > SELECT site_id
> > FROM sakai_site_tool
> > WHERE registration = 'sakai.dropbox'
> >
> > Will give you the site_ids for all sites that have the dropbox tool.
> >
> > cheers,
> > Steve
> >
> >
> > On Thu, Jul 10, 2014 at 3:01 AM, <markjnorton at earthlink.net> wrote:
> >>
> >> Generally, it is not recommended to make direct queries against a Sakai
> >> database.  The data contained in these records are maintained and
> managed by
> >> the Site Service.  A Java API allows you to access Site information,
> >> including some rather powerful search capabilities.  While the database
> >> schema has been stable for quite some time, there is no guarantee that
> it
> >> won't change in a future release.  The API protects you against those
> sorts
> >> of changes, even updating table definitions as needed.  I strongly
> suggest
> >> you have a look at the Site Service in the Sakai kernel and see if the
> >> objects/methods meet your needs.
> >>
> >> - Mark Norton
> >>
> >>
> >> -----Original Message-----
> >> >From: Virgílio Santos <virgilio.santos at gmail.com>
> >> >Sent: Jul 9, 2014 11:04 AM
> >> >To: sakai-dev at collab.sakaiproject.org
> >> >Subject: [Building Sakai] Help on how to query Sakai database
> >> >
> >> >Hello,
> >> >
> >> >I have a query do execute on Sakai database that I could not figured
> >> >out how to do with the available services. Basically, I want to query
> >> >all Sites that have some specific tool in at least one of its pages.
> >> >
> >> >For know, I'm trying something like this (It's not the query I will
> >> >really use, just an example):
> >> >
> >> >String sql = "SELECT * from SAKAI_SITE";
> >> >List<Site> siteList = null;
> >> >
> >> >SQLQuery query = this.getSession().createSQLQuery(sql);
> >> >query.addEntity(Site.class);
> >> >query.setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP);
> >> >List results = query.list();
> >> >
> >> >for(Object object : results) {
> >> >    Site s = (Site) object;
> >> >    // do stuff
> >> >}
> >> >
> >> >And getting this error:
> >> >org.sakaiproject.portal.api.PortalHandlerException:
> >> >org.sakaiproject.tool.api.ToolException:
> >> >org.springframework.web.util.NestedServletException: Request
> >> >processing failed; nested exception is org.hibernate.MappingException:
> >> >Unknown entity: org.sakaiproject.site.api.Site
> >> >
> >> >Any tips on making complex data queries on Sakai database will be very
> >> >useful as well
> >> >
> >> >Thanks in advance.
> >> >
> >> >--
> >> >Deserve's Got Nothing To Do With It
> >> >_______________________________________________
> >> >sakai-dev mailing list
> >> >sakai-dev at collab.sakaiproject.org
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> >> >
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> >>
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> >>
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> >
> >
>
>
>
> --
> Deserve's Got Nothing To Do With It
>
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