Hello!
We stumbled on two issues with 1.8rc. Both were puzzling and scary at
first, and each took its own debugging session to tame, now both
resolved. ;)
First we saw hex-encoded outputs of all textual objects (strings,blobs)
larger than 72 characters.
Our site runs postgresql - it turned out to be an incompatible default
configuration setting on the role (user). The fix is simple and only
needs to be run once against the database:
ALTER ROLE {your_db_username_here} SET bytea_output = 'escape';
The other and it seems default option is 'hex' and SMW is not able to
recognize or deal with it properly. So this configurations seems to be
necessary. It would be great if this can somehow get set automatically
upon creating the datastore, when running maintenance/SMWsetup.php.
The other issue manifests when queries return wikipagedataitems
containing + in their title. This triggers the "Somebody tried to use
spaces in a cache title!" exception, crashing the page. Fixing it is
simple in the Exporter function findDataItemForExpElement: use
rawurldecode instead of 'plain' urldecode, which converts the + to space.
diff --git a/includes/export/SMW_Exporter.php
b/includes/export/SMW_Exporter.php
index 9da3f1a..b56f5b3 100644
--- a/includes/export/SMW_Exporter.php
+++ b/includes/export/SMW_Exporter.php
@@ -326,7 +326,7 @@ class SMWExporter {
$wikiNamespace = self::getNamespaceUri( 'wiki' );
if ( strpos( $uri, $wikiNamespace ) === 0 ) {
$localName = substr( $uri, strlen( $wikiNamespace ) );
- $dbKey = urldecode( self::decodeURI( $localName ) );
+ $dbKey = rawurldecode( self::decodeURI( $localName ) );
$parts = explode( '-23', $dbKey, 2 );
if ( count( $parts ) == 2 ) {
Now that bugs are fixed, am looking forward to finally try out
subobjects and what else the new SMW has to offer! :)
The site: http://www.culture.si/ - powered by SMW, perhaps not a bad
usecase.
best,
LF
Dne 22. 11. 2012 08:41, piše Markus Krötzsch:
> Dear all,
>
> SMW 1.8 is close to its first stable release. We have now packaged a
> Release Candidate for download [1]. If all goes well, this will become
> SMW 1.8.0 in about a week. As usual, the package includes the required
> version of Validator.
>
> Major new features include:
>
> * New data storage: more efficient, less database activity
> * Interface improvements in Special:Ask
> * New atom and RSS printer
> * SMW now provides information about #ask queries used on the wiki [2]
> * Support for #subobjects without a name
> * Ask API now stable, with added continuation support
>
> Moreover, a large number of bugs have been fixed, compatibility to all
> recent MW versions has been ensured, a lot of internal improvements have
> been made, and translations have been added. A record number of people
> have contributed to this work.
>
> For those of you who download versions from git, there is also an
> according tag there for this RC. The master branch itself will remain in
> a stable state until 1.8 is released.
>
> Feedback is most welcome.
>
> Cheers,
>
> Markus
>
>
> [1]
> http://sourceforge.net/projects/semediawiki/files/semediawiki/Semantic%20MediaWiki%201.8%20RC1/
> [2] You can now query for queries. Examples:
>
> * The 10 largest queries used on the wiki with their size and query string:
>
> {{#ask:[[query string::+]]
> |?query size
> |?query string
> |sort=query size
> |order=DESC
> |limit=10
> }}
>
> * The number of queries that use the format "list":
>
> {{#ask:[[query format::list]] |format=count }}
>
> * The number of pages that use queries that use the format "list":
>
> {{#ask:[[has query.query format::list]] |format=count }}
>
> * The total number of queries:
>
> {{#ask:[[query size::+]] |format=count }}
>
> * Pages that have a query with format list and one with format table:
>
> {{#ask: [[has query.query format::list]] [[has query.query
> format::table]] }}
>
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