v3.0.0+
| Status: | effective |
| Progress: | 100% |
| Version: | 3.0.0+ |
Special properties (declarative)
From semantic-mediawiki.org
This help page lists the declarative special properties. Declarative special properties are used to define or declare the behaviour of properties on their properties pages, i.e. they can only be used in namespace "Property". Starting with Semantic MediaWiki 3.0.0Released on an unknown date and compatible with MW 1.27.0 - 1.30.x. error messages1 will be issued if a declarative special property is used in other namespaces than that.2
The following table gives an overview of all 19 visible special properties provided by Semantic MediaWiki:| Name | Description | Help page | Since | Key |
|---|---|---|---|---|
| Allows value | Lists one permissible value for a property | Special property "Allows value" | 1.0 | _PVAL |
| Corresponds to | Gives the conversion factor for some unit of a physical quantity and the possible names for that unit | Special property "Corresponds to" | 1.0 | _CONV |
| Display units | Specifies the a comma-separated list of units or formats that a property should use in display | Special property "Display units" | 1.0 | _UNIT |
| Equivalent URI | Marks a page in the wiki as having a well-known meaning beyond this wiki, in an external URI | Special property "Equivalent URI" | 1.0 | _URI |
| Has type | Assigns a datatype to a property | Special property "Has type" | 1.0 | _TYPE |
| Imported from | Allows users to reuse elements of external vocabularies directly within the wiki | Special property "Imported from" | 1.0 | _IMPO |
| Provides service | Adds service links to properties | Special property "Provides service" | 1.0 | _SERV |
| Subproperty of | Lets you indicate that one property is a subproperty of another | Special property "Subproperty of" | 1.0 | _SUBP |
| Has fields | Defines a short list of fields with a fixed type and order for datatype Record | Special property "Has fields" | 1.5.0 | _LIST |
| Subcategory of | Lets you explicitly indicate that one category is a subcategory of another | Special property "Subcategory of" | 1.5.0 | _SUBC |
| Allows pattern | Pattern to match a permissible value | Special property "Allows pattern" | 2.4.0 | _PVAP |
| Display precision of | Precision in digits | Special property "Display precision of" | 2.4.0 | _PREC |
| Has property description | Adds localizable context help to properties | Special property "Has property description" | 2.4.0 | _PDESC |
| Has uniqueness constraint | Allows to restrict value annotation to be unique | Special property "Has uniqueness constraint" | 2.4.0 | _PVUC |
| Allows value list | Adds a reference to a list of permissible values for a property | Special property "Allows value list" | 2.5.0 | _PVALI |
| External formatter URI | Declares an external URL with a place holder $1 | Special property "External formatter URI" | 2.5.0 | _PEFU |
| Has preferred property label | Adds localizable labels to a property | Special property "Has preferred property label" | 2.5.0 | _PPLB |
| Change propagation | Holds the new property specification of a property or category page | Special property "Change propagation" | 3.0.0 | _CHGPRO |
| Is property group | Property to identify a group category and to support a simple grouping feature in Special:Browse | Special property "Is property group" | 3.0.0 | _PPGR |
Special property "Subcategory of"Lets you explicitly indicate that one category is a subcategory of another and special property "Change propagation"Holds the new property specification of a property or category page can also be used in namespace "Category".
References
- ^ ↑ Semantic MediaWiki: Sandbox example sb:smw:2820
- ^ ↑ Semantic MediaWiki: GitHub issue gh:smw:2820
