powl-discussion — List for all Powl related discussion

[ontowiki-discussion] problems with ontowiki

[<mam...@st...>]

Hello everyone!

I´m from the team SWP09-6 of the university of Leipzig.

I´ve got some problems with ontowiki. We installed it on the server of  
the university, but we got some Problems with collations. we installed  
it like the discribtion of the code.google... site, but it didn´t  
work. All we can do, is to open the index.php an login as an admin. If  
we want to open a knolegdebase the following exeption is thrown:


OntoWiki Error

Zend_Db_Statement_Mysqli_Exception: Mysqli prepare error: Illegal mix  
of collations (ascii_bin,IMPLICIT) and (utf8_bin,IMPLICIT) for  
operation '='
/home/swp09-6/public_html/ontowiki/libraries/Erfurt/libraries/Zend/Db/Statement/Mysqli.php@84  
(0)

Another fact is that we could install ontowiki on another server where  
we have all rights to do as we like. Maybe we have to chance some  
configurations of the server of the universtity?

please answer as quick as you can, because we have a deadline on monday.
thanks

the SWP09-6 team

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Re: [ontowiki-discussion] OntoWiki and Zend Framework

[Norman H. <nor...@go...>]

Hi Wil,

thank you for your interest in OntoWiki.

This list is fine, though an older one from when we kept all our  
projects under the same SourceForge project page. OntoWiki now has its  
own Google Code page [1] along with 2 Google Groups (ontowiki-user and  
ontowiki-dev).

OntoWiki is built on ZF and makes heavy use of ZF's web application  
infrastructure (request dispatching, MVC architecture, Zend_View w/  
1.5+ features, templates, view helpers). We have subclassed the  
Zend_Dispatcher to allow for pluggable controllers (called components  
in OntoWiki) and linked data [2] functionality. Have a look at the  
linked data plug-in for instance (found under plugins/linkeddata).

In addition, we use a custom Zend_Auth adapter that authenticates  
users against an RDF store via SPARQL since OntoWiki's internal user/ 
configuration is itself an RDF model.

For triple storage and related functionality we use our Erfurt API. It  
can be extended with adapters for different RDF stores. Currently,  
with OpenLink Virtuoso [3] it works best due to its complete SPARQL  
implementation. An RDF store based on ZendDb is beeing worked on, but  
SPARQL to SQL transformation still has some issues.

Since it seems you are looking for Semantic Web components to be  
integrated into ZF, I'd like to focus your attention on Triplify [4],  
another project that is developed in our research group. Triplify uses  
a few PHP scripts and a configuration file and can expose relational  
data as RDF triples on the web. It currently does not conform to ZF  
standards but I could imagine it be rewritten for ZF integration. Does  
Zend_Triplify sound good to you? :)

Regards,
Norman

[1] http://code.google.com/p/ontowiki/
[2] http://linkeddata.org/
[3] http://www.openlinksw.com/virtuoso/
[4] http://triplify.org/

Am 2008-12-11 um 21:25 schrieb Wil Sinclair:

> Hi, I hope I have the right list. I'm the manager of the ZF team at
> Zend. I noticed that OntoWiki is built with ZF, and I'm particularly
> interested since I'm a bit of a semantic web enthusiast myself.
> Have you written components in your app that are ZF-like and which
> access SW documents or implement any SW behavior? What datastore do  
> you
> use?
>
> Thanks!
> ,Wil
>
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[ontowiki-discussion] OntoWiki and Zend Framework

[Wil S. <wi...@ze...>]

Hi, I hope I have the right list. I'm the manager of the ZF team at
Zend. I noticed that OntoWiki is built with ZF, and I'm particularly
interested since I'm a bit of a semantic web enthusiast myself.
Have you written components in your app that are ZF-like and which
access SW documents or implement any SW behavior? What datastore do you
use?

Thanks!
,Wil

Re: [ontowiki-discussion] Getting SSL to work

[Michael H. <ha...@go...>]

Hello Eric,

I cannot test it here because I do not have a running secured web server
(and no time to set it up local), but maybe I can lead you in the right
direction for a quick fix:

The URL base is set in /app/config/settings.php, line 171 (current
trunk, R 2488):

$config->urlBase = strtolower(substr($_SERVER['SERVER_PROTOCOL'], 0,
strpos($_SERVER['SERVER_PROTOCOL'], '/'))) . '://' .
$_SERVER['HTTP_HOST'] . ($_SERVER['SERVER_PORT'] != '80' ? ':' .
$_SERVER['SERVER_PORT'] : '');

I guess that $_SERVER['SERVER_PROTOCOL'] only returned HTTP/..., also on
your secured server.

Just try this and replace line 171:

if (!isset($_SERVER['HTTPS']) || !$_SERVER['HTTPS'] ||
    $_SERVER['HTTPS'] == 'off') {
    $config->protocol = 'http://';
} else {
    $config->protocol = 'https://';
}
$config->urlBase = s$config->protocol . $_SERVER['HTTP_HOST'] .
($_SERVER['SERVER_PORT'] != '80' ? ':' . $_SERVER['SERVER_PORT'] : '');


This may break other protocols than http/https but I cannot see a
problem with this b/c it's a web app (other guys, am I right?).

Please come back with some feedback on this, thank you.

cheers...
Haschek


Am Mittwoch, den 13.08.2008, 12:16 -0500 schrieb Eric Normand:
> Hello.
> 
> As I wrote previously, I am trying to get OntoWiki to work using https.  
> I noted that the links on the pages were still http, even though I 
> accessed them through https.  Is it possible that there is an easy fix?  
> I notice that the port number that OntoWiki is accessed with is 
> magically added to the URLs in links.  Maybe there is a link generator 
> function.
> 
> Two possible solutions:
> * If there is a link generator function, change it to dynamically select 
> http or https
> * If there is a link generator function, change the links to be relative.
> 
> I think #2 is the best option.  Unfortunately, I am not familiar with 
> the code.  If someone could point me in the right direction about fixing 
> this, if it is simple like the two solutions above, I could fix it and 
> send a patch.
> 
> Thanks
> Eric

-- 
Website: http://haschek.eye48.com
Messenger: ha...@ja... (see http://jabber.org)

[ontowiki-discussion] Getting SSL to work

[Eric N. <eno...@nr...>]

Hello.

As I wrote previously, I am trying to get OntoWiki to work using https.  
I noted that the links on the pages were still http, even though I 
accessed them through https.  Is it possible that there is an easy fix?  
I notice that the port number that OntoWiki is accessed with is 
magically added to the URLs in links.  Maybe there is a link generator 
function.

Two possible solutions:
* If there is a link generator function, change it to dynamically select 
http or https
* If there is a link generator function, change the links to be relative.

I think #2 is the best option.  Unfortunately, I am not familiar with 
the code.  If someone could point me in the right direction about fixing 
this, if it is simple like the two solutions above, I could fix it and 
send a patch.

Thanks
Eric

Re: [ontowiki-discussion] OntoWiki and SSL

[Sebastian D. <die...@in...>]

quote Eric Normand (11.8.2008):

> I am having trouble installing OntoWiki on a server using SSL.  As you 
> probably know, SSL over HTTP uses the "https" protocol prefix in the 
> url.

Hi Eric,

I've created an issue for the [1]. Thanks for the report. We didnt used 
OntoWiki on SSL hosts for now ...

SD

[1] http://code.google.com/p/ontowiki/issues/detail?id=142

-- 
Sebastian Dietzold - Department of Computer Science; University of Leipzig
Tel/Fax: +49 341 97 323-66/-29 http://bis.uni-leipzig.de/SebastianDietzold

[ontowiki-discussion] OntoWiki and SSL

[Eric N. <eno...@nr...>]

Hello.

I am having trouble installing OntoWiki on a server using SSL.  As you 
probably know, SSL over HTTP uses the "https" protocol prefix in the 
url. However, many of the urls in the code are absolute instead of 
relative.  They point to "http:".  Is there any way to get OntoWiki 
using https without having to go through each line of code to fix this?

Thanks
Eric

Re: [ontowiki-discussion] can't load SPARQL user interface

[Norman H. <nor...@go...>]

Hello Chatchavan,

the SPARQL interface is currently broken and will be fixed in the next  
release (OntoWiki 0.85) which is due the mid of June.

Cheers,

Norman


Am 2008-05-31 um 18:28 schrieb Chatchavan Wacharamanotham:

> Hi,
>
> I tried to use SPARQL via Ontowiki from Extras ->  SPARQL Query
> Editor.  The user interface for editing SPARQL doesn't show up.  I
> tried this on Safari 3 and Firefox 2.  This doesn't work in both my
> local installation of OntoWiki as well as in http:// 
> demo.ontowiki.net/.
>
> Do I need to make special configuration in order to use SPARQL?
>
> Cheers,
> Chatchavan
>
>
> -----------------------------------------------------
> Chatchavan Wacharamanotham
> European Master in Informatics student
> University of Edinburgh
> c.w...@sm...
>
>
>
>
>
> -- 
> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.
>
>
> -------------------------------------------------------------------------
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[ontowiki-discussion] can't load SPARQL user interface

[Chatchavan W. <c.w...@sm...>]

Hi,

I tried to use SPARQL via Ontowiki from Extras ->  SPARQL Query  
Editor.  The user interface for editing SPARQL doesn't show up.  I  
tried this on Safari 3 and Firefox 2.  This doesn't work in both my  
local installation of OntoWiki as well as in http://demo.ontowiki.net/.

Do I need to make special configuration in order to use SPARQL?

Cheers,
Chatchavan


-----------------------------------------------------
Chatchavan Wacharamanotham
European Master in Informatics student
University of Edinburgh
c.w...@sm...





-- 
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.

Re: [ontowiki-discussion] ontowiki performance > is there any data?

[Sebastian D. <die...@in...>]

quote Luna De Ferrari (26.5.2008):

> Dear list, I have recently presented Ontowiki to our wiki interest 
> group. Many people were interested, but most questions concentrated on 
> performance and stress testing: how fast are queries? what are the 
> maximum numbers of entries ontowiki can reasonably support? when does 
> the performance start to degrade? etc.

Hi Luna,

we do not have such performance measurements yet. At the moment, we only 
support the RAP backend with mysql. This backend is very slow with big 
models. (i think, the guys from RAP do also not have performance docs)

The good news: Norm & Phil started a reengineering of the most crucial 
parts of ontowiki. This OntoWiki NG does support other backends than RAP 
like Virtuoso (the store behind DBpedia) and Redland.

regards

SD

-- 
Sebastian Dietzold - Department of Computer Science; University of Leipzig
Tel/Fax: +49 341 97 323-66/-29 http://bis.uni-leipzig.de/SebastianDietzold

[ontowiki-discussion] ontowiki performance > is there any data?

[Luna De F. <lun...@ed...>]

Dear list,
I have recently presented Ontowiki to our wiki interest group. Many 
people were interested, but most questions concentrated on performance 
and stress testing: how fast are queries? what are the maximum numbers 
of entries ontowiki can reasonably support? when does the performance 
start to degrade? etc.

Do you know where I could find this type of information? It would help 
us in evaluating the use of ontowiki for several research projects (from 
bibliography to geographical and biological data).

Thank you for your help,
Best regards, Luna

----------------------------------------
Software Developer
Computational Systems Biology Group
Phone: +44-0131-6508281
E-mail: lun...@ed...
http://homepages.inf.ed.ac.uk/ldeferra/

The University of Edinburgh,
Room 2.204, Darwin Building, KB
West Mains Road, Edinburgh, UK - EH9 3JR
----------------------------------------


-- 
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.

Re: [ontowiki-discussion] about minor rendering problem in view resource/list/..

[Sebastian D. <die...@in...>]

quote Shahid Manzoor (16.5.2008):

> I have the attached the image of the error.

thanks, i've attached the file to the bug report.

SD



> 
> thanks,
> 
> 
> On Fri, May 16, 2008 at 9:36 AM, Sebastian Dietzold <die...@in...>
> wrote:
>       quote Shahid Manzoor (8.5.2008):
>
>             I have loaded an owl file in the ontowiki application. The
>             application displays the information very well.
> 
> While viewing date in the ontowiki application when the view
> http://..../resource/list/Person is called it render the University class
> instances ids (University_4 and University_5) instead of their labels (Saarland
> University and University at Buffalo). When the view resource/view/Person_7 is
> called then it render correctly the University class instances labels.
> 
> Could you please fix this.
> 
> 
> Hi Shahid,
> 
> I've imported you file but could not reproduce the display error. I've attached a file
> to an issue at google code, showing my screen - here:
> http://code.google.com/p/ontowiki/issues/detail?id=69
> 
> can you attach a file too?
> 
> regards
> 
> SD
> 
> --
> Sebastian Dietzold - Department of Computer Science; University of Leipzig
> Tel/Fax: +49 341 97 323-66/-29 http://bis.uni-leipzig.de/SebastianDietzold
> 
> 
> 
> 
> --
> Shahid Manzoor
> University at Buffalo
> 5
>

-- 
Sebastian Dietzold - Department of Computer Science; University of Leipzig
Tel/Fax: +49 341 97 323-66/-29 http://bis.uni-leipzig.de/SebastianDietzold

Re: [ontowiki-discussion] Q: widgets for properties

[Sebastian D. <die...@in...>]

quote Simonas Mikužis (4.5.2008):

> how do I enable the group select widget in properties when I am using 
> the Enumerated datatype? All I see is just the name of the property and 
> one check box. I want to let the user choose one of the available 
> parameter options when creating new Instances.

Hi Simonas,

the widget behavior you've described is not intended. I've created an 
issue for that.

http://code.google.com/p/ontowiki/issues/detail?id=70

> Another question. Is it normal that when I make some changes/adjustments 
> to my model (i.e. I add a property but then I decide to remove it) nodes 
> in RDF triples are created and when I disable/remove those changes the 
> nodes still remain.

I'm not sure what you mean. You've deleted the property but not all 
statements from the property are removed?

Which type of nodes do you mean? Blank nodes?

regards

SD

-- 
Sebastian Dietzold - Department of Computer Science; University of Leipzig
Tel/Fax: +49 341 97 323-66/-29 http://bis.uni-leipzig.de/SebastianDietzold

Re: [ontowiki-discussion] about minor rendering problem in view resource/list/..

[Sebastian D. <die...@in...>]

quote Shahid Manzoor (8.5.2008):

> I have loaded an owl file in the ontowiki application. The application 
> displays the information very well.
> 
> While viewing date in the ontowiki application when the view 
> http://..../resource/list/Person is called it render the University 
> class instances ids (University_4 and University_5) instead of their 
> labels (Saarland University and University at Buffalo). When the view 
> resource/view/Person_7 is called then it render correctly the University 
> class instances labels.
> 
> Could you please fix this.

Hi Shahid,

I've imported you file but could not reproduce the display error. I've 
attached a file to an issue at google code, showing my screen - here:
http://code.google.com/p/ontowiki/issues/detail?id=69

can you attach a file too?

regards

SD

-- 
Sebastian Dietzold - Department of Computer Science; University of Leipzig
Tel/Fax: +49 341 97 323-66/-29 http://bis.uni-leipzig.de/SebastianDietzold

[ontowiki-discussion] about minor rendering problem in view resource/list/..

[Shahid M. <sha...@gm...>]

I have loaded an owl file in the ontowiki application. The application
displays the information very well.

In the owl there are two classes Person and University. The Person class has
affiliated object property. In the file there is an instance of Person
class, which has id 'Person_7' and label 'John Smith'. The John Smith person
affiliated with two universities whose ids are University_4 and University_5
and labels are Saarland University and University at Buffalo respectively.

While viewing date in the ontowiki application when the view
http://..../resource/list/Person
is called it render the University class instances ids (University_4 and
University_5) instead of their labels (Saarland University and University at
Buffalo). When the view resource/view/Person_7 is called then it render
correctly the University class instances labels.

Could you please fix this.

<rdf:RDF xmlns="http://rtu/testing#"
     xml:base="http://rtu/testing"
     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
     xmlns:owl="http://www.w3.org/2002/07/owl#"
     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
    <owl:Ontology rdf:about=""/>
    <owl:ObjectProperty rdf:ID="affiliated">
        <rdfs:domain rdf:resource="#Person"/>
        <rdfs:range rdf:resource="#University"/>
    </owl:ObjectProperty>
    <rdfs:Class rdf:ID="Person"/>
    <Person rdf:ID="Person_7">
        <rdfs:label rdf:datatype="&xsd;string">John Smith</rdfs:label>
        <affiliated rdf:resource="#University_4"/>
        <affiliated rdf:resource="#University_5"/>
    </Person>
    <rdfs:Class rdf:ID="University"/>
    <University rdf:ID="University_4">
        <rdfs:label rdf:datatype="&xsd;string"
            >Saarland University</rdfs:label>
    </University>
    <University rdf:ID="University_5">
        <rdfs:label rdf:datatype="&xsd;string"
            >University at Buffalo</rdfs:label>
    </University>
</rdf:RDF>


thanks,
-- 
Shahid Manzoor

Re: [ontowiki-discussion] plugins in OntoWiki

[Philipp F. <pfr...@go...>]

Hi,I have updated the Example plugin (svn), so now it should work for you.
The SoftWiki plugin is a very sophisticated plugin and not the best one to
start with. Just copy the config.ini-dist file to config.ini and set the
switch to "on". Then you should see some major changes on your OntoWiki
screen...

Phil

2008/5/6 Shahid Manzoor <sma...@bu...>:

> I tried softwiki plugins. I renamed the config.ini.dist file to
> config.ini in the SoftWiki directory. I also added the the following
> property in the ontowiki config.ini file
>
> plugins.ontowiki = plugins/SoftWiki
>
> But nothing appeared on the ontowiki home page screen. Am I doing
> something wrong? If a plug-in is successfully installed how would it
> appear on the screen? Would it come in a menu option?
>
>
> On Tue, May 6, 2008 at 1:03 AM, Philipp Frischmuth
> <pfr...@go...> wrote:
> > Hi,
> >  you say that you installed OntoWiki from svn. We are currently still
> > working a lot on the plugin system, so it is possible that some plugins
> do
> > not work in the current revision. E.g. the Example plugin will not work,
> for
> > the .ini file has to be called config.ini now. Please have a look at the
> > ContainerManager or the SoftWiki plugin. This ones are already
> updated...
> >
> >  Hope that works for you...
> >
> >  Philipp Frischmuth
> >
> >  Am 05.05.2008 um 22:04 schrieb Shahid Manzoor:
> >
> >
> > >
> > >
> > >
> > > Today, I installed OntoWiki from Subversion (svn). I works perfectly.
> > > I tried to enable the plugins available in the plugins directory, but
> > > did not get success. I followed the instructions from the project
> > > webpage. Could you please help how to integrate a plugin in the
> > > OntoWiki environment.
> > >
> > > thanks,
> > >
> > >
> > >
> > > --
> > > SM
> > >
> > >
> -------------------------------------------------------------------------
> > > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> > > Don't miss this year's exciting event. There's still time to save
> $100.
> > > Use priority code J8TL2D2.
> > >
> >
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> > >
> >
> >
>
>
>
> --
> Shahid Manzoor
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> Don't miss this year's exciting event. There's still time to save $100.
> Use priority code J8TL2D2.
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>

Re: [ontowiki-discussion] plugins in OntoWiki

[Shahid M. <sma...@bu...>]

I tried softwiki plugins. I renamed the config.ini.dist file to
config.ini in the SoftWiki directory. I also added the the following
property in the ontowiki config.ini file

plugins.ontowiki = plugins/SoftWiki

But nothing appeared on the ontowiki home page screen. Am I doing
something wrong? If a plug-in is successfully installed how would it
appear on the screen? Would it come in a menu option?


On Tue, May 6, 2008 at 1:03 AM, Philipp Frischmuth
<pfr...@go...> wrote:
> Hi,
>  you say that you installed OntoWiki from svn. We are currently still
> working a lot on the plugin system, so it is possible that some plugins do
> not work in the current revision. E.g. the Example plugin will not work, for
> the .ini file has to be called config.ini now. Please have a look at the
> ContainerManager or the SoftWiki plugin. This ones are already updated...
>
>  Hope that works for you...
>
>  Philipp Frischmuth
>
>  Am 05.05.2008 um 22:04 schrieb Shahid Manzoor:
>
>
> >
> >
> >
> > Today, I installed OntoWiki from Subversion (svn). I works perfectly.
> > I tried to enable the plugins available in the plugins directory, but
> > did not get success. I followed the instructions from the project
> > webpage. Could you please help how to integrate a plugin in the
> > OntoWiki environment.
> >
> > thanks,
> >
> >
> >
> > --
> > SM
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> > Don't miss this year's exciting event. There's still time to save $100.
> > Use priority code J8TL2D2.
> >
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> > _______________________________________________
> > Powl-discussion mailing list
> > Pow...@li...
> > https://lists.sourceforge.net/lists/listinfo/powl-discussion
> >
>
>



-- 
Shahid Manzoor

Re: [ontowiki-discussion] plugins in OntoWiki

[Philipp F. <pfr...@go...>]

Hi,
you say that you installed OntoWiki from svn. We are currently still  
working a lot on the plugin system, so it is possible that some  
plugins do not work in the current revision. E.g. the Example plugin  
will not work, for the .ini file has to be called config.ini now.  
Please have a look at the ContainerManager or the SoftWiki plugin.  
This ones are already updated...

Hope that works for you...

Philipp Frischmuth

Am 05.05.2008 um 22:04 schrieb Shahid Manzoor:

> Today, I installed OntoWiki from Subversion (svn). I works perfectly.
> I tried to enable the plugins available in the plugins directory, but
> did not get success. I followed the instructions from the project
> webpage. Could you please help how to integrate a plugin in the
> OntoWiki environment.
>
> thanks,
>
>
>
> -- 
> SM
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> Don't miss this year's exciting event. There's still time to save  
> $100.
> Use priority code J8TL2D2.
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> Powl-discussion mailing list
> Pow...@li...
> https://lists.sourceforge.net/lists/listinfo/powl-discussion

[ontowiki-discussion] plugins in OntoWiki

[Shahid M. <sma...@bu...>]

Today, I installed OntoWiki from Subversion (svn). I works perfectly.
I tried to enable the plugins available in the plugins directory, but
did not get success. I followed the instructions from the project
webpage. Could you please help how to integrate a plugin in the
OntoWiki environment.

thanks,



-- 
SM

[ontowiki-discussion] Q: widgets for properties

[S. M. <sim...@gm...>]

Hi,

how do I enable the group select widget in properties when I am using
the Enumerated datatype? All I see is just the name of the property
and one check box. I want to let the user choose one of the available
parameter options when creating new Instances.

Another question. Is it normal that when I make some
changes/adjustments to my model (i.e. I add a property but then I
decide to remove it) nodes in RDF triples are created and when I
disable/remove those changes the nodes still remain.

Thank you!
Simon

[ontowiki-discussion] 3 issues with powl

[S. M. <sim...@gm...>]

Hi,

I don't know if this is the right place to post my problems and if not
I apologize.
I have encountered 3 issues with pOWL. Could you guys please help me
resolve them quickly as I am writing a paper (to get a bachelors
degree) on ontology engineering and it's practical application?

1.	When switching between models the top part of the page changes to:

WARNING: [512] Deletion of statement
http://powl.sf.net/SysOnt/0.1#Admin->http://powl.sf.net/SysOnt/0.1#userPreferences->a:12:{s:5:\\\\"model\\\\";s:30:\\\\"http://powl.sf.net/SysOnt/0.1#\\\\";s:27:\\\\"/powl/modules/rdf/index.php\\\\";a:1:{s:5:\\\\"count\\\\";i:20;}s:53:\\\\"http://www.w3.org/TR/2003/CR-owl-guide-20030818/wine#\\\\";a:1:{s:9:\\\\"Classtree\\\\";a:1:{s:4:\\\\"show\\\\";a:0:{}}}s:36:\\\\"http://powl.sf.net/WCMS/AisSite/0.1#\\\\";a:1:{s:9:\\\\"Classtree\\\\";a:1:{s:4:\\\\"show\\\\";a:0:{}}}s:36:\\\\"http://ontoview.org/schema/unspsc/1#\\\\";a:1:{s:9:\\\\"Classtree\\\\";a:1:{s:4:\\\\"show\\\\";a:0:{}}}s:30:\\\\"http://powl.sf.net/SysOnt/0.1#\\\\";a:1:{s:9:\\\\"Classtree\\\\";a:1:{s:4:\\\\"show\\\\";s:2:\\\\"de\\\\";}}s:35:\\\\"http://powl.sf.net/SysOnt/0.1#Model\\\\";a:2:{s:13:\\\\"InstancesList\\\\";a:1:{s:4:\\\\"show\\\\";a:0:{}}s:17:\\\\"InstancesOverview\\\\";a:1:{s:4:\\\\"cols\\\\";a:0:{}}}s:42:\\\\"/powl/modules/instances/instances_show.php\\\\";a:1:{s:5:\\\\"count\\\\";i:20;}s:28:\\\\"/powl/modules/rdql/index.php\\\\";a:1:{s:5:\\\\"count\\\\";i:20;}s:30:\\\\"/powl/modules/search/index.php\\\\";a:1:{s:5:\\\\"count\\\\";i:20;}s:45:\\\\"http://www.mindswap.org/2003/nciOncology.owl#\\\\";a:1:{s:9:\\\\"Classtree\\\\";a:1:{s:4:\\\\"show\\\\";a:0:{}}}s:32:\\\\"/powl/modules/instances/list.php\\\\";a:1:{s:5:\\\\"count\\\\";i:20;}}
failed!

2.	When trying to select the RDQL tab I get:

WARNING: [2] array_merge() [function.array-merge]: Argument #2 is not an array
in line 291 of file C:\xampp\htdocs\powl\rdfsapi\model.php.
WARNING: [2] array_unique() [function.array-unique]: The argument
should be an array
in line 293 of file C:\xampp\htdocs\powl\rdfsapi\model.php.
WARNING: [2] sort() expects parameter 1 to be array, boolean given
in line 294 of file C:\xampp\htdocs\powl\rdfsapi\model.php.
WARNING: [2] Invalid argument supplied for foreach()
in line 60 of file C:\xampp\htdocs\powl\modules\rdql\index.php.

3.	I cannot publish my model. I follow the instructions you provided
i.e. switch to system model, go to instances of class „Model" and I
cannot find the model corresponding to my designed model (corrsponding
URI). I see only instances named „ns2", „SysOnt" and „ModelInstance1".
If I open them for editing I see that they are read-only. How do I
publish a model?

The pOWL tool is installed locally and is running on XAMPP
(www.apachefriends.org/en/xampp.html) platform on WINDOWS XP SP2.

Thank You!
Simon

Re: [ontowiki-discussion] Installation problem

[Scott S. <ss...@aa...>]

Hi Sebastian,

> sorry for the delay. can you tell me, which mysql module you use?
> mysqli or mysql?

Does this answer your question?


lapss>> rpm -q -a | grep mysql
mysql-server-4.1.20-1.FC4.1
bytefx-data-mysql-1.1.13.4-0.novell
mysql-4.1.20-1.FC4.1
mysql-administrator-1.1.10-2.fc4
php-mysql-5.0.4-10.5
mod_auth_mysql-2.6.1-4
mysql-gui-common-1.1.10-2.fc4
mysql-devel-4.1.20-1.FC4.1

Scott. :)

Re: [ontowiki-discussion] Installation problem

[Sebastian D. <die...@in...>]

Hi Scott,

sorry for the delay. can you tell me, which mysql module you use?
mysqli or mysql?

SD


2008/4/14, Scott Smedley <ss...@aa...>:
>
> Hi all,
>
> I am having difficulties installing OntoWiki (v0.8) on my Fedora 4 system.
>
> When I visit http://localhost/cgi-bin/ontowiki/boot.php with my
> browser I get:
>
> Fatal error: Uncaught exception 'Exception' with message 'Could not
> connect to database' in
> /home/ss/ontowiki-0.8/lib/Erfurt/lib/rdfapi-php/model/DbStore.php:73 Stack
> trace: #0 /home/ss/ontowiki-0.8/lib/Erfurt/Store/Default.php(64):
> DbStore->DbStore('mysqli', 'localhost', 'ontowiki', 'owuser', 'owpass') #1
> /home/ss/ontowiki-0.8/lib/Erfurt/App/Default.php(66):
> Erfurt_Store_Default->Erfurt_Store_Default('mysqli', 'localhost',
> 'ontowiki', 'owuser', 'owpass', NULL, '') #2
> /home/ss/ontowiki-0.8/app/config/settings.php(136):
> Erfurt_App_Default->__construct(Object(Erfurt_Config), '', '', true) #3
> /home/ss/ontowiki-0.8/boot.php(12): require_once('/home/ss/ontowi...') #4
> {main} thrown in
> /home/ss/ontowiki-0.8/lib/Erfurt/lib/rdfapi-php/model/DbStore.php on line 73
>
> Yet I can connect to the database using:
>
> mysql -u owuser --password=owpass ontowiki
>
> Note that I created the database with these commands:
>
> mysql -u root -p mysql
> mysql> create database ontowiki;
> mysql> grant all privileges on ontowiki.* to 'owuser'@'localhost'
> identified by 'owpass';
>
>
> Any pointers to get OntoWiki working would be muchly appreciated.
>
> Thanks,
>
> Scott. :)
>
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[ontowiki-discussion] Installation problem

[Scott S. <ss...@aa...>]

Hi all,

I am having difficulties installing OntoWiki (v0.8) on my Fedora 4 system.

When I visit http://localhost/cgi-bin/ontowiki/boot.php with my
browser I get:

Fatal error: Uncaught exception 'Exception' with message 'Could not connect to database' in /home/ss/ontowiki-0.8/lib/Erfurt/lib/rdfapi-php/model/DbStore.php:73 Stack trace: #0 /home/ss/ontowiki-0.8/lib/Erfurt/Store/Default.php(64): DbStore->DbStore('mysqli', 'localhost', 'ontowiki', 'owuser', 'owpass') #1 /home/ss/ontowiki-0.8/lib/Erfurt/App/Default.php(66): Erfurt_Store_Default->Erfurt_Store_Default('mysqli', 'localhost', 'ontowiki', 'owuser', 'owpass', NULL, '') #2 /home/ss/ontowiki-0.8/app/config/settings.php(136): Erfurt_App_Default->__construct(Object(Erfurt_Config), '', '', true) #3 /home/ss/ontowiki-0.8/boot.php(12): require_once('/home/ss/ontowi...') #4 {main} thrown in /home/ss/ontowiki-0.8/lib/Erfurt/lib/rdfapi-php/model/DbStore.php on line 73

Yet I can connect to the database using:

mysql -u owuser --password=owpass ontowiki

Note that I created the database with these commands:

mysql -u root -p mysql
mysql> create database ontowiki;
mysql> grant all privileges on ontowiki.* to 'owuser'@'localhost' identified by 'owpass';


Any pointers to get OntoWiki working would be muchly appreciated.

Thanks,

Scott. :)

[ontowiki-discussion] LOD Triplification Challenge

[Sören A. <au...@in...>]

Hi all,

Together with this years I-Semantics conference [1] we are organizing a
Linking Open Data Triplification Challenge.

The challenge aims at expediting the process of revealing and exposing
structured (relational) representations, which already back most of the
existing Web sites, as well as raising awareness in the Web Developer
community and showcasing best practices.

The challenge awards attractive prices (MacBook Air, EeePC, iPod) to the
most innovative and promising semantifications. The prizes are kindly
sponsored by OpenLink Software [2], Punkt.NetServices [3] and InfAI [4].

More Information about the challenge can be found at:

http://triplify.org/Challenge

I think outreach to the Web developer communities (as intended with the
challenge) is really crucial right now to expedite the Semantic Web
deployment and I would be very excited if you support this effort - e.g.
by spreading the word and/or submitting to the challenge.

Best,

Sören

[1] http://www.i-semantics.at/
[2] http://www.openlinksw.com/
[3] http://www.punkt.at/
[4] http://infai.org/

--------------------------------------------------------------
Sören Auer, AKSW/Computer Science Dept., University of Leipzig
http://www.informatik.uni-leipzig.de/~auer,  Skype: soerenauer