rdfapi-php-interest — general forum for RAP feature requests, bug reports, patches, and use cases

Re: [Rdfapi-php-interest] New commer / beginner

[Chris B. <ch...@bi...>]

Hi Olivier,

any questions are welcome :-)

Cheers

Chris

--
Chris Bizer
Freie Universität Berlin
Phone: +49 30 838 54057
Mail: ch...@bi...
Web: www.bizer.de

----- Original Message ----- 
From: "Olivier GENDRIN" <o.g...@no...>
To: <rdf...@li...>
Sent: Friday, November 02, 2007 10:09 AM
Subject: [Rdfapi-php-interest] New commer / beginner


> Hi everyone !
>
> I'm interested in RDF and in RAP. I tried to use the examples given 
> in
> the documentations, and succed to do simple add/fetch, but I still 
> have
> basics questions (and silly ones).
>
> Is this list avaible for silluy beginners questions, or is it 
> intended
> for developpements of RAP only ?
>
> Thank you.
>
> -- 
> Olivier G.
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a 
> browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest 

[Rdfapi-php-interest] New commer / beginner

[Olivier G. <o.g...@no...>]

Hi everyone !

I'm interested in RDF and in RAP. I tried to use the examples given in
the documentations, and succed to do simple add/fetch, but I still have
basics questions (and silly ones).

Is this list avaible for silluy beginners questions, or is it intended
for developpements of RAP only ?

Thank you.

--=20
Olivier G.

Re: [Rdfapi-php-interest] OntModel or...?

[mat <ge...@gm...>]

But do I have to install the entire framework or can I use only the binding
useful to view/manipulate rdf files (e.g. Erfurt that I can't find...). Pow=
l
sounds great but is too big for my intentions. I only want to visualize an
ontology, let user manipulate it and explore it. The principal goal of my
project is to let the users map one or more tags with one or more
ontologies, in order to improve their search. For this reason I wanted to
find relations between the concepts of an ontology, to let the user view
similar options.

On 10/25/07, Daniel Lewis <da...@va...> wrote:
>
> Hi Mat,
>
> One option is to write a little SPARQL query, this way you could test
> it in both RAP and Jena if you wanted. Although obviously you would
> have to handle your ontology at quite a low level - which I can
> understand that you might not want to do - but it is an option.
>
> But Erfurt that S=F6ren mentions sounds quite good... it might be worth
> checking that out. (S=F6ren, do you have any documentation for Erfurt? I
> found this: http://ontowiki.net/Projects/Powl?v=3D287)
>
> Many thanks
>
> Daniel
>
> ---
> Daniel Lewis
> * Hometown: Oxford, UK
> * Works for: Curverider Ltd. and Vanir Systems
> * Skype: daniel.lewis
>
>
>
> On 25/10/2007, mat <ge...@gm...> wrote:
> > Hi, is there the possibility to retrieve my ontology by Concepts,
> Instances
> > and even more specifically, can I found all the properties related to a
> > concept (also exploring the subClasses or superClassses)? I'm sorry but
> I'm
> > not very familiar with RAP. For now the only method that I've used in
> order
> > to find what I wanted was using the find() function in the ModelFactory
> > class, but it's not what I wanted. I know that in Jena there is a metho=
d
> > called getNamedConcepts() and others to accomplish this request.
> >
> > Thanks
> >
> > --
> > ___mat___
>



--=20
___mat___

Re: [Rdfapi-php-interest] OntModel or...?

[Daniel L. <da...@va...>]

Hi Mat,

One option is to write a little SPARQL query, this way you could test
it in both RAP and Jena if you wanted. Although obviously you would
have to handle your ontology at quite a low level - which I can
understand that you might not want to do - but it is an option.

But Erfurt that S=F6ren mentions sounds quite good... it might be worth
checking that out. (S=F6ren, do you have any documentation for Erfurt? I
found this: http://ontowiki.net/Projects/Powl?v=3D287)

Many thanks

Daniel

---
Daniel Lewis
* Hometown: Oxford, UK
* Works for: Curverider Ltd. and Vanir Systems
* Skype: daniel.lewis



On 25/10/2007, mat <ge...@gm...> wrote:
> Hi, is there the possibility to retrieve my ontology by Concepts, Instanc=
es
> and even more specifically, can I found all the properties related to a
> concept (also exploring the subClasses or superClassses)? I'm sorry but I=
'm
> not very familiar with RAP. For now the only method that I've used in ord=
er
> to find what I wanted was using the find() function in the ModelFactory
> class, but it's not what I wanted. I know that in Jena there is a method
> called getNamedConcepts() and others to accomplish this request.
>
> Thanks
>
> --
> ___mat___

Re: [Rdfapi-php-interest] OntModel or...?

[<au...@in...>]

mat wrote:
> Hi, is there the possibility to retrieve my ontology by Concepts, 
> Instances and even more specifically, can I found all the properties 
> related to a concept (also exploring the subClasses or superClassses)? 

We developed a quite comprehensive API called Erfurt for handling higher 
level ontology semantics on top of RAP, which is part of Powl/OntoWiki 
[1]. You might check it out.

Sören


[1] http://sf.net/projects/powl

[Rdfapi-php-interest] OntModel or...?

[mat <ge...@gm...>]

Hi, is there the possibility to retrieve my ontology by Concepts, Instances
and even more specifically, can I found all the properties related to a
concept (also exploring the subClasses or superClassses)? I'm sorry but I'm
not very familiar with RAP. For now the only method that I've used in order
to find what I wanted was using the find() function in the ModelFactory
class, but it's not what I wanted. I know that in Jena there is a method
called getNamedConcepts() and others to accomplish this request.

Thanks

-- 
___mat___

Re: [Rdfapi-php-interest] RAP New Version Proposal

[Chris B. <ch...@bi...>]

Hi Daniel,

thanks for the proposal. I agree that exception handling and moving to PHP 5 
should really be adressed. Both topics have been for a long time on our wish 
lists, but I did not find anybody who wanted to approach both topics as they 
involve going through the complete code and doing a mayor redesign of the 
APIs.

You are more then welcome to take the lead on this and come up with a proper 
OO interface specification that includes exception handling for the APIs.

Cheers and thanks a lot for offering to contribute.

Chris


--
Chris Bizer
Freie Universität Berlin
+49 30 838 54057
ch...@bi...
www.bizer.de
----- Original Message ----- 
From: "Daniel Lewis" <dan...@gm...>
To: <rdf...@li...>
Sent: Monday, October 22, 2007 4:06 PM
Subject: [Rdfapi-php-interest] RAP New Version Proposal


> Dear All on "RAP" list,
> (Including: Richard Cyganiak and Chris Bizer)
>
> I have started to create an Open Proposal for a new version of the RDF
> API for PHP (RAP). It is available here:
> http://docs.google.com/Doc?id=dgzd3ztq_23g88635
>
> It would be good to have feedback, and if you are feeling really keen
> then I can add you as a collaborator on the Google Document.
>
> Once the proposal has been approved (and if) then development can
> start on the new version. I am not saying that I can provide a lot of
> development resources to taking things further as I have a full time
> job as many of you do too - but I can help a little. The wonders of
> Open Source development :-)  . I just feel that we do need to advance
> things for the Semantic Web to be more usable by those who aren't
> researchers.
>
> Look forward to hearing from you soon.
>
> Many thanks and blessings,
>
> Daniel Lewis
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> _______________________________________________
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> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest 

[Rdfapi-php-interest] RAP New Version Proposal

[Daniel L. <dan...@gm...>]

Dear All on "RAP" list,
(Including: Richard Cyganiak and Chris Bizer)

I have started to create an Open Proposal for a new version of the RDF
API for PHP (RAP). It is available here:
http://docs.google.com/Doc?id=dgzd3ztq_23g88635

It would be good to have feedback, and if you are feeling really keen
then I can add you as a collaborator on the Google Document.

Once the proposal has been approved (and if) then development can
start on the new version. I am not saying that I can provide a lot of
development resources to taking things further as I have a full time
job as many of you do too - but I can help a little. The wonders of
Open Source development :-)  . I just feel that we do need to advance
things for the Semantic Web to be more usable by those who aren't
researchers.

Look forward to hearing from you soon.

Many thanks and blessings,

Daniel Lewis

[Rdfapi-php-interest] extra question marks in sparql results

[Tom H. <tom...@gm...>]

Hi all,

drewp spotted this in results from the Revyu endpoint, which now uses
RAP0.9.5. I've logged it at SF, but would be useful if someone else
could try and replicate it just to check.
<http://sourceforge.net/tracker/index.php?func=detail&aid=1812843&group_id=63257&atid=503361>

Cheers,

Tom.

---------- Forwarded message ----------
From: Drew Perttula
Date: 13 Oct 2007 07:31
Subject: extra question marks in sparql results
To: Tom Heath

Recently the sparql results started coming back like this, with extra
'?' in the sparql/results/result/binding/name attribute:

http://revyu.com/sparql?query=%0APREFIX%20rev%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fstuff%2Frev%23%3E%0APREFIX%20rdfs%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%0ASELECT%20%3Fthing%20%3Fname%20%3Freview%20%3FcreatedOn%20%3Frating%0AWHERE%0A%7B%0A%20%20%3Fthing%20rdfs%3Alabel%20%3Fname%20%3B%0A%20%20%20%20%20%20%20%20%20rev%3AhasReview%20%3Freview%20.%0A%20%20%3Freview%20rev%3Areviewer%20%3Cpeople%2Fdrewp%3E%20%3B%0A%20%20%20%20%20%20%20%20%20%20rev%3AcreatedOn%20%3FcreatedOn%20%3B%0A%20%20%20%20%20%20%20%20%20%20rev%3Arating%20%3Frating%20.%0A%7D%20%0A
<?xml version="1.0"?>
<sparql xmlns="http://www.w3.org/2005/sparql-results#">
   <head>
     <variable name="?thing"/>
     <variable name="?name"/>
     <variable name="?review"/>
     <variable name="?createdOn"/>
     <variable name="?rating"/>
   </head>
   <results ordered="false" distinct="false">
     <result>
       <binding
name="?thing"><uri>things/revyu-com-review-anything-website-review-social</uri></binding>
       <binding name="?name"><literal>revyu com review
anything</literal></binding>
       <binding
name="?review"><uri>reviews/194071f5d12dfe54a656d6b6d82c46d79ba4424d</uri></binding>
       <binding
name="?createdOn"><literal>2006-11-20T09:12:42-08:00</literal></binding>
       <binding name="?rating"><literal>4</literal></binding>
     </result>
     <result>
       <binding name="?thing"><uri>things/google-1164052502</uri></binding>
       <binding name="?name"><literal>Google</literal></binding>
       <binding
name="?review"><uri>reviews/41533c7cde1199cd740dfabd969587388ee47f3e</uri></binding>
       <binding
name="?createdOn"><literal>2006-11-21T19:26:12-08:00</literal></binding>
       <binding name="?rating"><literal>5</literal></binding>
     </result>
...

<snip/>

Re: [Rdfapi-php-interest] RAP and SKOS

[Emsley, I \(Iain\) <I.E...@rl...>]

=20
Many thanks for your replies. I've take a further look at this a little
later today and start working on the resource instances necessary.=20

Thanks,=20

Iain
-----Original Message-----
From: Richard Cyganiak [mailto:ri...@cy...]=20
Sent: 09 October 2007 22:52
To: Emsley, I (Iain)
Cc: rdf...@li...
Subject: Re: [Rdfapi-php-interest] RAP and SKOS

Iain,

As Daniel said, RAP is vocabulary agnostic. You can use it with any
vocabulary you like, including SKOS. This simply means that you have to
create Resource instances that use SKOS vocabulary URIs.

Best,
Richard


On 9 Oct 2007, at 17:17, Emsley, I (Iain) wrote:

> I'm just starting out with the RAP toolkit and was wondering if it had

> hooks for SKOS at all? If not, where would I find the libraries to=20
> take a look and try to hack the hooks?
>
> Many thanks,
>
> Iain
>
> Iain Emsley
>
>
> ----------------------------------------------------------------------
> ---
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a=20
> browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/=20
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest

Re: [Rdfapi-php-interest] RAP and SKOS

[Richard C. <ri...@cy...>]

Iain,

As Daniel said, RAP is vocabulary agnostic. You can use it with any  
vocabulary you like, including SKOS. This simply means that you have  
to create Resource instances that use SKOS vocabulary URIs.

Best,
Richard


On 9 Oct 2007, at 17:17, Emsley, I (Iain) wrote:

> I'm just starting out with the RAP toolkit and was wondering if it  
> had hooks for SKOS at all? If not, where would I find the libraries  
> to take a look and try to hack the hooks?
>
> Many thanks,
>
> Iain
>
> Iain Emsley
>
>
> ---------------------------------------------------------------------- 
> ---
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a  
> browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/ 
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest

Re: [Rdfapi-php-interest] RAP and SKOS

[Daniel L. <dan...@gm...>]

Hi Iain,

I've recently joined the list too, and I have also just started to use
RAP for a project. I don't believe that RAP actually has any hooks
into any vocabularies (such as SKOS, FOAF etc), it is really just a
RDF parsing/manipulating tool.

All of the RAP library is available to download from the website:
http://sites.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/

I'd love to see a SKOS hook actually, I used the SKOS vocab in my
undergraduate project... but with Ruby on Rails and the Redland (as
opposed to PHP and RAP).

Hope that helps,

Daniel Lewis
* Skype: daniel.lewis
* Oxford, UK.


On 09/10/2007, Emsley, I (Iain) <I.E...@rl...> wrote:
>
>
> I'm just starting out with the RAP toolkit and was wondering if it had hooks
> for SKOS at all? If not, where would I find the libraries to take a look and
> try to hack the hooks?
>
> Many thanks,
>
> Iain
>
> Iain Emsley
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
>

[Rdfapi-php-interest] RAP and SKOS

[Emsley, I \(Iain\) <I.E...@rl...>]

I'm just starting out with the RAP toolkit and was wondering if it had
hooks for SKOS at all? If not, where would I find the libraries to take
a look and try to hack the hooks?
=20
Many thanks,=20
=20
Iain
=20
Iain Emsley
=20
=20

Re: [Rdfapi-php-interest] Status of RAP

[Richard C. <ri...@cy...>]

Daniel,

On 8 Oct 2007, at 18:31, Daniel Lewis wrote:
> Here is an RDF file which I know it doesn't work for, its a FOAF  
> profile:
> http://www.vanirsystems.co.uk/foaf.rdf

Works for me. Below is a test script that parses the file and prints  
it again to RDF/XML. I run this with RAP 0.9.5 and it works fine.

Are you sure that this is the URI on which your script shows the error?

Maybe you should try to isolate a minimal PHP script that triggers  
the error and that we can run without changes.

Best,
Richard

------- begin test script ---------
<?php

define("RDFAPI_INCLUDE_DIR", "rdfapi-php-0.9.5/api/");
include(RDFAPI_INCLUDE_DIR . "RdfAPI.php");

$model = ModelFactory::getDefaultModel();
$model->load("http://www.vanirsystems.co.uk/foaf.rdf");
echo $model->writeRdfToString();
------- end test script --------



>
> and here is a snippet:
>   public function connectToFoaf($uri) {
>     $this->model = ModelFactory::getDefaultModel();
>     $this->model->load($uri);
>  }
> ...
> ...
>  $result = $this->model->findFirstMatchingStatement($statement- 
> >getObject(),
> $name, NULL);
>  $nameResult = $this->makeSane($result);
>
>
> Thats the best I can do for code snippets, the error is:
>
> Warning: RDFAPI error (class: parser): only one element allowed inside
> a property element. in
> /home/daniel/public_html/xippr/code/lib/vendor/rdfapi-php/api/ 
> syntax/RdfParser.php
> on line 1045
>
> Fatal error: RDFAPI error (class: parser; method: generateModel):
> XML-parser-error 76 in Line 89 of input document. in
> /home/daniel/public_html/xippr/code/lib/vendor/rdfapi-php/api/ 
> syntax/RdfParser.php
> on line 2225
>
> Many thanks,
>
> Daniel
>

Re: [Rdfapi-php-interest] Status of RAP

[Daniel L. <dan...@gm...>]

> There's not much we can do without looking at an example that
> triggers the problem. Can you point us to a file that shows the
> problem, and the command that you used for loading the file into RAP?

Here is an RDF file which I know it doesn't work for, its a FOAF profile:
http://www.vanirsystems.co.uk/foaf.rdf

and here is a snippet:
  public function connectToFoaf($uri) {
    $this->model = ModelFactory::getDefaultModel();
    $this->model->load($uri);
 }
...
...
 $result = $this->model->findFirstMatchingStatement($statement->getObject(),
$name, NULL);
 $nameResult = $this->makeSane($result);


Thats the best I can do for code snippets, the error is:

Warning: RDFAPI error (class: parser): only one element allowed inside
a property element. in
/home/daniel/public_html/xippr/code/lib/vendor/rdfapi-php/api/syntax/RdfParser.php
on line 1045

Fatal error: RDFAPI error (class: parser; method: generateModel):
XML-parser-error 76 in Line 89 of input document. in
/home/daniel/public_html/xippr/code/lib/vendor/rdfapi-php/api/syntax/RdfParser.php
on line 2225

Many thanks,

Daniel

Re: [Rdfapi-php-interest] Status of RAP

[Richard C. <ri...@cy...>]

Daniel,

On 8 Oct 2007, at 16:18, Daniel Lewis wrote:
> I am getting things going now, and my deadlin for beta-release is
> getting ever closer. But I am getting an error, which I understand
> from previous emails on the list is quite a common one:
>
> Warning: RDFAPI error (class: parser): only one element allowed inside
> a property element. in /...../rdfapi-php/api/syntax/RdfParser.php on
> line 1045
>
> This is only happening on some RDF files, but I checked those RDF
> files against the W3Cs RDF Validation Service and they are valid. So I
> thought that it might be the RAP library, but its only happening on
> some files? So is the RAP library up to speed with the latest RDF
> specification?

Yes. There is of course the possibility that you encountered a bug.

> I could be going completely down the wrong path, I'll search for the
> error again on the web, but if anyone has any quick solutions then it
> would be of great help.

There's not much we can do without looking at an example that  
triggers the problem. Can you point us to a file that shows the  
problem, and the command that you used for loading the file into RAP?

Cheers,
Richard



>
> (by the way, this is for a free-to-use service... which I am going to
> write an academic article for)
>
> Many thanks,
>
> Daniel Lewis
>
>
>
>
> On 05/10/2007, Richard Cyganiak <ri...@cy...> wrote:
>> Daniel,
>>
>> On 5 Oct 2007, at 11:44, Daniel Lewis wrote:
>>> I'm new to the PHP RDF API (but I have been in the Semantic Web /  
>>> RDF
>>> area for a couple of years), could someone give me a quick  
>>> description
>>> of the development which is currently happening to the API. I  
>>> noticed
>>> there have been some much needed changes released a couple of months
>>> ago, will there be more?
>>
>> RAP development is user-driven. Improvements happen as users of the
>> API contribute them. Releases happen when sufficient fixes or
>> interesting new stuff has accumulated. Thus there is no schedule for
>> future releases, or list of expected new features.
>>
>>> I have started to use the API for a project of mine which is due  
>>> to be
>>> released on the web within a week or two, and of course I would let
>>> you know when that happens and what it does when it is released.
>>
>> Looking forward to hear more about this.
>>
>> Richard
>

Re: [Rdfapi-php-interest] Status of RAP

[Daniel L. <dan...@gm...>]

Hi all on the list (inc Richard),

I am getting things going now, and my deadlin for beta-release is
getting ever closer. But I am getting an error, which I understand
from previous emails on the list is quite a common one:

Warning: RDFAPI error (class: parser): only one element allowed inside
a property element. in /...../rdfapi-php/api/syntax/RdfParser.php on
line 1045

This is only happening on some RDF files, but I checked those RDF
files against the W3Cs RDF Validation Service and they are valid. So I
thought that it might be the RAP library, but its only happening on
some files? So is the RAP library up to speed with the latest RDF
specification?

I could be going completely down the wrong path, I'll search for the
error again on the web, but if anyone has any quick solutions then it
would be of great help.

(by the way, this is for a free-to-use service... which I am going to
write an academic article for)

Many thanks,

Daniel Lewis




On 05/10/2007, Richard Cyganiak <ri...@cy...> wrote:
> Daniel,
>
> On 5 Oct 2007, at 11:44, Daniel Lewis wrote:
> > I'm new to the PHP RDF API (but I have been in the Semantic Web / RDF
> > area for a couple of years), could someone give me a quick description
> > of the development which is currently happening to the API. I noticed
> > there have been some much needed changes released a couple of months
> > ago, will there be more?
>
> RAP development is user-driven. Improvements happen as users of the
> API contribute them. Releases happen when sufficient fixes or
> interesting new stuff has accumulated. Thus there is no schedule for
> future releases, or list of expected new features.
>
> > I have started to use the API for a project of mine which is due to be
> > released on the web within a week or two, and of course I would let
> > you know when that happens and what it does when it is released.
>
> Looking forward to hear more about this.
>
> Richard

Re: [Rdfapi-php-interest] Status of RAP

[Richard C. <ri...@cy...>]

Daniel,

On 5 Oct 2007, at 11:44, Daniel Lewis wrote:
> I'm new to the PHP RDF API (but I have been in the Semantic Web / RDF
> area for a couple of years), could someone give me a quick description
> of the development which is currently happening to the API. I noticed
> there have been some much needed changes released a couple of months
> ago, will there be more?

RAP development is user-driven. Improvements happen as users of the  
API contribute them. Releases happen when sufficient fixes or  
interesting new stuff has accumulated. Thus there is no schedule for  
future releases, or list of expected new features.

> I have started to use the API for a project of mine which is due to be
> released on the web within a week or two, and of course I would let
> you know when that happens and what it does when it is released.

Looking forward to hear more about this.

Richard


>
> Any information that you can provide would be of great help.
>
> Many thanks,
>
> Daniel Lewis
>
> ---------------------------------------------------------------------- 
> ---
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a  
> browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
>

[Rdfapi-php-interest] Status of RAP

[Daniel L. <dan...@gm...>]

Hi all,

I'm new to the PHP RDF API (but I have been in the Semantic Web / RDF
area for a couple of years), could someone give me a quick description
of the development which is currently happening to the API. I noticed
there have been some much needed changes released a couple of months
ago, will there be more?

I have started to use the API for a project of mine which is due to be
released on the web within a week or two, and of course I would let
you know when that happens and what it does when it is released.

Any information that you can provide would be of great help.

Many thanks,

Daniel Lewis

Re: [Rdfapi-php-interest] Cannot checkout on windows

[Christian W. <cw...@cw...>]

> It seems I canot checkout svn on windows while it works on my unix machine.
> I suspect it has to do with windows' 255 char path length limit, but I am not sure.
The Tortoise Help tells me that there is a case conflict. Seems I need to fix this on unix.


-- 
Christian Weiske <cw...@cw...>

[Rdfapi-php-interest] Cannot checkout on windows

[Christian W. <cw...@cw...>]

Hello,


It seems I canot checkout svn on windows while it works on my unix machine.
I suspect it has to do with windows' 255 char path length limit, but I am not sure.

Can anyone confirm this?

-- 
Christian Weiske <cw...@cw...>

Re: [Rdfapi-php-interest] problems with unite models

[Chris B. <ch...@bi...>]

---- Original Message ----- 
From: "Marja Koivunen" <ma...@an...>
To: <ch...@bi...>
Sent: Tuesday, September 11, 2007 3:41 PM
Subject: problems with unite models


> Unfortunately I cannot send mail to rdfapi interest list because some 
> postmaster problem. Hopefully this will work.
> -----------------
> 
> Could someone give me a working example of unite as I cannot make
> uniting models work very reliably.
> 
> Here is what I do.
> 
>  $TestModel1 = $TestDatabase->getModel("test1");
>  $TestModel2 = $TestDatabase->getModel("test2");
> 
>  $TestModel3 = $TestModel1->unite($TestModel2);
> 
> Both $TestModel1 and $TestModel2 work fine separately and I can query
> them with SPARQL. I can also see these models in SQL table when I query
> the statements.
> 
> Now, if I query $TestModel3 with SPARQL it seems that I may get some
> good information, but also a lot of crap. It gives more hits than it
> should for my queries and also some of the property info seems to be
> mixed up.
> 
> If I look $TestModel3 as a table with $TestModel3->writeAsHtmlTable();
> it looks fine but I did not check the URIs in it so maybe it is not.
> 
> Any suggestions?
> 
> Thanks!
> 
> Marja
>

[Rdfapi-php-interest] Duplicated blank nodes in Database stored model

[Martin S. <ma...@ma...>]

Guys,

Do you have any update on this bug report? [ 1660118 ] Blank nodes in
DbModel not unique:
http://sourceforge.net/tracker/index.php?func=detail&aid=1660118&group_id=63257&atid=503361

Short story:
when a new Blanknode object is created, Model::getUniqueResourceURI()
is called and an incremental id is generated (starting from 0 if not
exist). The problem is that the previous id is saved on a static
property of the object, which is reset when a new instance of this
object is created. Maybe this is not a problem with a memory model,
but with a DB model, things gets nasty when you have duplicated
bnodes.

We're updating the DbModel class to fix this, we could send you a
patch, if you are interested.

Thanks

-- 
Martin Sarsale - ma...@ma...

[Rdfapi-php-interest] serializing ontology

[Ritesh A. <rag...@gm...>]

hi,

I have just started to use RAP - RDF API and facing some problem in
searlizing OntModel..my codes runs without error but nothing is
serialized...The output file contains only this

=========== contents of output file ==================
<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#' />
==========================================

here is what I was trying


<?php
//================ my code ====================

$basename = *'http://www.findnwrite.com/courses/'*;

//Create OntModel

$ontModel = ModelFactory::getOntModel(MEMMODEL,RDFS_VOCABULARY, $basename);

// Add Classes and Properties

$clsDepartment = $ontModel->createOntClass($basename . "Department");

$clsCourses = $ontModel->createOntClass($basename . "Courses");

$prpRequires = $ontModel->createOntProperty($basename.*'requires'*);

$prpCredit = $ontModel->createOntProperty($basname.*'credit'*);

$prpStatisfy = $ontModel->createOntProperty($basename.*'statisfy'*);

$prpLabel = $ontModel->createOntProperty(RDFS::LABEL());

$prpSource = $ontModel->createOntProperty(DC::SOURCE());

$prpComment = $ontModel->createOntProperty(RDFS::COMMENT());

 //Create a subclass for department

$department = $courses[*'Department'*][*'name'*];

$dept = $courses[*'Department'*][*'sname'*];

//Save the model

$ontModel->saveAs($department . *'.owl'*, "rdf");
*

echo* "{$department}: " . $ontModel->size() . *'statements were added'*;
?>

I will be thankful if someone can tell me where I am making a mistake

Regards
ritesh

-- 
-------------------------------
http://findnwrite.com

Re: [Rdfapi-php-interest] Unbound Prefix

[Marco R. <cre...@go...>]

Thank you all!

It looks like a classical human failure - problem to me :))
But it works just fine now. By declaring the right namespaces with the right
URIs I even get the results I expect!

While we are at it two more questions:

1.) Does RAP come along with a count-construct in the select-statement? I
only found information, that count returns an integer, but nothing further
more. So is it possible to use somelike

prefix ... select count(?var) where {...}

2.) My rdf-dump declares namespaces with uris. Therefore shouldn't it
possible to use my query-statements without using the PREFIX-constructs?

The xml-file starts like this:

<?xml version=" 1.0" encoding="UTF-8"?>
<!DOCTYPE rdf:RDF[
    <!ENTITY rdf
'http://www.w3.org/1999/02/22-rdf-syntax-ns#'<http://www.w3.org/1999/02/22-rdf-syntax-ns#%27>
>
    <!ENTITY rdfs '
http://www.w3.org/2000/01/rdf-schema#'<http://www.w3.org/2000/01/rdf-schema#%27>
>
    <!ENTITY owl
'http://www.w3.org/2002/07/owl#'<http://www.w3.org/2002/07/owl#%27>>

    <!ENTITY smw
'http://smw.ontoware.org/2005/smw/'<http://smw.ontoware.org/2005/smw/%27>
>
    <!ENTITY smwdt 'http://smw.ontoware.org/2005/smw-datatype#'
<http://smw.ontoware.org/2005/smw-datatype#%27>>
    <!ENTITY wiki
'http://localhost/sop-2Ddev/index.php/'<http://localhost/sop-2Ddev/index.php/%27>
>
    <!ENTITY thing '
http://localhost/sop-2Ddev/index.php/_'<http://localhost/sop-2Ddev/index.php/_%27>
>
    <!ENTITY relation
'http://localhost/sop-2Ddev/index.php/_Relation-3A'<http://localhost/sop-2Ddev/index.php/_Relation-3A%27>
>
    <!ENTITY attribute '
http://localhost/sop-2Ddev/index.php/_Attribut-3A'<http://localhost/sop-2Ddev/index.php/_Attribut-3A%27>
>
    <!ENTITY dc 'http://purl.org/dc/elements/1.1/'
<http://purl.org/dc/elements/1.1/%27>>
    <!ENTITY wikiurl
'http://localhost/sop-dev/index.php/'<http://localhost/sop-dev/index.php/%27>
>
]>

<rdf:RDF
    xmlns:rdf="&rdf;"
    xmlns:rdfs="&rdfs;"
    xmlns:owl ="&owl;"
    xmlns:smw="&smw;"
    xmlns:wiki="&wiki;"
    xmlns:thing="&thing;"
    xmlns:relation="&relation;"
    xmlns:attribute="&attribute;"
    xmlns:dc="&dc;"
    xmlns:foaf="http://xmlns.com/foaf/0.1/">
    <!-- reference to the Semantic MediaWiki schema -->
    <owl:AnnotationProperty rdf:about="&smw;hasArticle">
        <rdfs:isDefinedBy rdf:resource="http://smw.ontoware.org/2005/smw"/>
    </owl:AnnotationProperty>
    <owl:AnnotationProperty rdf:about="&smw;hasType">
        <rdfs:isDefinedBy rdf:resource="http://smw.ontoware.org/2005/smw"/>
    </owl:AnnotationProperty>
    <owl:Class rdf:about="&smw;Thing">
        <rdfs:isDefinedBy rdf:resource="http://smw.ontoware.org/2005/smw"/>
    </owl:Class>
    <!-- exported page data -->


Thanks again and I appreciate your help!
Marco