Special property "Has query"

From semantic-mediawiki.org
Has query
Links a page to the subobject created by a query recording its profile
Further Information
Provided by: extension "Semantic MediaWiki "Semantic MediaWiki (SMW) is a free, open-source extension to MediaWiki that lets you store and query data within the wiki's pages. Semantic MediaWiki is also a full-fledged framework, in conjunction with many spinoff extensions, that can turn a wiki into a powerful and flexible knowledge management system. All data created within SMW can easily be published via the Semantic Web, allowing other systems to use this data seamlessly.
Added: 1.8.0
Removed: still in use
Alias: has no alias
Optional: yes
Visible: no
Annotable: no
Declarative: no
Key:
_ASK
Setting: not specified
Focus: query information
In this wiki: Property:Has query

The Has query property is a special property in Semantic MediaWiki with a built-in meaning: it links a page to the subobject of a query which records it's profile. This subobject holds information about the respective query which itself may be queried. This information includes the depth, the format, the size and the string of the respective query. Starting with with Semantic MediaWiki 1.9.0 the duration1 was added and Semantic MediaWiki 2.5.0 brought information about it's parameters2.

This special property should never be set manually, since Semantic MediaWiki will take care of setting its value dynamically. Starting with Semantic MediaWiki 2.2.0 it is no longer possible to manually add values for this special property.3

See the property page Has query to see which pages use this special property on this wiki.

Available special properties relating to query profiling

The following other special properties are available for query profiling:
NameDescriptionHelp pageAdded
Query depthHolds the value of the property depth of a querySpecial property "Query depth"1.8.0
Query formatHolds the name of the result format used in a querySpecial property "Query format"1.8.0
Query sizeHolds the value of the number of conditions in a querySpecial property "Query size"1.8.0
Query stringHolds the conditions of the query as a stringSpecial property "Query string"1.8.0
Query durationHolds the value of the duration a query took to executeSpecial property "Query duration"1.9.0
Query sourceHolds the identifier of an alternative (e.g. remote) query sourceSpecial property "Query source"2.5.0
Query parametersHolds the parameters a query used to select its outputSpecial property "Query parameters"2.5.0
Query scodeHolds the status code a query uses to define its internal stateSpecial property "Query scode"3.0.0

See also


References

  1. ^  Semantic MediaWiki: GitHub pull request gh:smw:30
  2. ^  Semantic MediaWiki: GitHub pull request gh:smw:2270
  3. ^  Semantic MediaWiki: GitHub pull request gh:smw:914