https://bugzilla.wikimedia.org/show_bug.cgi?id=32977
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Bug #: 32977
Summary: [SRF] When used on images, "array" format fails
Product: MediaWiki extensions
Version: any
Platform: All
OS/Version: All
Status: NEW
Severity: major
Priority: Unprioritized
Component: SemanticResultFormats
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
This will display images instead of silently storing them in an array:
{{#ask: [[Category:Images]] | ? | format=array | name=image array}}
Using #arrayprint from the Arrays extension will then fail:
{{#arrayprint: image array | <br /> | VariableValue | [[VariableValue|180px]]
}}
Using link=none on the #ask query will still non-silently produce a
File:pagename list:
{{#ask: [[Category:Images]] | ? | format=array | name=image array | link=none}}
Once again, using #arrayprint from the Arrays extension will then fail:
{{#arrayprint: image array | <br /> | VariableValue | [[VariableValue|180px]]
}}
Also, #arraymap from Semantic Forms will also fail:
{{#arraymap:{{#arrayprint: image
array}}|,|VariableValue|[[VariableValue|180px]]|\n\n}}
With two different extensions failing to make use of the data that the SMW
"array" format is providing, in two different ways, it appears that the array
format is non-functional when dealing with files and/or images.
The workaround is to use the "list" format, with the "sep=," parameter to
manually construct a data set:
{{#arraydefine: image array
| {{#ask: [[Category:Images]] | ? | format=list | sep=, | link=none}}
}}
The #arrayprint then succeeds:
{{#arrayprint: image array | <br /> | VariableValue | [[VariableValue|180px]]
}}
The #arraymap also succeeds:
{{#arraymap:{{#arrayprint: image
array}}|,|VariableValue|[[VariableValue|180px]]|\n\n}}
I marked this as major instead of critical because although the array feature
of SMW's Semantic Result Formats is non-functional with images (I didn't test
other data types), the problem can be worked around as described. Here's the
relevant documentation. Note that part of it is incomplete, and does not
describe some of the things I did in my examples above:
http://semantic-mediawiki.org/wiki/Help:Array_format
http://www.mediawiki.org/wiki/Extension:Semantic_Result_Formats
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