GraphViz MediaWiki extension

GraphViz

Links

• https://www.mediawiki.org/wiki/Extension:GraphViz
• https://www.semantic-mediawiki.org/wiki/Extension:GraphViz
• https://github.com/WolfgangFahl/mediawiki-extensions-GraphViz

Issues

Unknown column 'img_description' in 'field list'

Problem

Function: MediaWiki\Extension\GraphViz\UploadLocalFile::recordUpload3
Error: 1054 Unknown column 'img_description' in 'field list' (localhost)

Diagnosis

• https://www.mediawiki.org/wiki/Manual:Image_table

Commit
host	https://github.com
path	WolfgangFahl
project	mediawiki-extensions-GraphViz
subject	work-arounds for Error: 1054 Unknown column 'img_description' in 'field list' and imageMap dependency (bundled)
name	Wolfgang Fahl
date	2020-02-10 11:40:28 +0100
hash	f3cfc18

Therapy

• https://www.mediawiki.org/wiki/Topic:V2cf1hrkrjb8i2ub

Workaround

alter table image add img_description varchar(255);
alter table oldimage add oi_description varchar(255);

Could not acquire lock for "mwstore://local-backend/local-public/3/3f/GraphViz_graph_graphname_dot.svg".

Problem

Could not acquire lock for "mwstore://local-backend/local-public/3/3f/GraphViz_graph_graphname_dot.svg". 

Diagnosis

• https://www.mediawiki.org/wiki/Topic:Qz1bltqssxd9o0ic

Error: Image is invalid or non-existent.

Problem

Error: Image is invalid or non-existent.

Diagnosis

• https://www.semantic-mediawiki.org/wiki/Thread:Help_talk:Graph_format/Error:_Image_is_invalid_or_non-existent.

grep -r "invalid or non-existent"
extensions/ImageMap/i18n/en.json:	"imagemap_invalid_image": "Error: Image is invalid or non-existent.",
grep -r "magemap_invalid_image"
ImageMap/includes/ImageMap.php:					return self::error( 'imagemap_invalid_image' );
ImageMap/includes/ImageMap.php:					return self::error( 'imagemap_invalid_image' );
ImageMap/includes/ImageMap.php:					return self::error( 'imagemap_invalid_image' );
ImageMap/includes/ImageMap.php:					return self::error( 'imagemap_invalid_image' );

select img_name from image;
+----------------------------------+
| img_name                         |
+----------------------------------+
| GraphViz_graph_rq_dot.svg        |
| GraphViz_graph_graphname_dot.svg |

Therapy

unclear

• https://phabricator.wikimedia.org/T244720
• https://phabricator.wikimedia.org/T244742

Diagrams extension

An alternative approach is outlined in:

• https://www.mediawiki.org/wiki/Extension:Diagrams

Fork at:

• https://github.com/WolfgangFahl/diagrams-extension

Commits

Commit
host	https://github.com
path	WolfgangFahl
project	diagrams-extension
subject	adds Special page with java installation check
name	Wolfgang Fahl
date	2020-02-10 15:34:57 +0100
hash	2964c07

Commit
host	https://github.com
path	WolfgangFahl
project	diagrams-extension
subject	fixes help link
name	Wolfgang Fahl
date	2020-02-10 15:36:04 +0100
hash	5178436

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