Special properties (annotable)

From semantic-mediawiki.org

This help page lists the annotable special properties. Annotable special properties may be manually annotated by the user on wiki pages.

The following table gives an overview of all 29 manually annotable special properties provided by Semantic MediaWiki:

Name Description Help Added Key
Allows value Lists one permissible value for a property help page 1.0
Corresponds to Gives the conversion factor for some unit of a physical quantity and the possible names for that unit help page 1.0
Display units Specifies the a comma-separated list of units or formats that a property should use in display help page 1.0
Equivalent URI Marks a page in the wiki as having a well-known meaning beyond this wiki, in an external URI help page 1.0
Has type Assigns a datatype to a property help page 1.0
Imported from Allows users to reuse elements of external vocabularies directly within the wiki help page 1.0
Provides service Adds service links to properties help page 1.0
Subproperty of Lets you indicate that one property is a subproperty of another help page 1.0
Has fields Defines a short list of fields with a fixed type and order for datatype Record help page 1.5.0
Allows pattern Pattern to match a permissible value help page 2.4.0
Display precision of Allows to define the display precision in digits help page 2.4.0
Display title of Holds a specific denote title for an entity help page 2.4.0
Has property description Adds localizable context help to properties help page 2.4.0
Has uniqueness constraint Allows to restrict value annotation to be unique help page 2.4.0
Language code Handles BCP47 conform language codes specifying the language of the annotated text help page 2.4.0
Allows value list Adds a reference to a list of permissible values for a property help page 2.5.0
External formatter URI Declares an external URL with placeholders $1, $2 help page 2.5.0
External identifier Specifies an external identifier help page 2.5.0
Has preferred property label Adds localizable labels to a property help page 2.5.0
Is edit protected Stores the status of an edit restriction of a page help page 2.5.0
Is property group Marks a category for holding properties belonging to a property group help page 3.0.0

Conversely all special properties not listed here are not manually annotable by the user.

Special property "Subcategory of"Lets you explicitly indicate that one category is a subcategory of another is only a manually annotable special property if option SMW_CAT_HIERARCHY to configuration parameter configuration parameter $smwgCategoryFeaturesSets the behaviour of the query features related to category handling was removed from it".

See also[edit]

Octocat.png"TypesRegistry.php" – The general characteristics of a special property are defined here.