v3.1.0+
| Status: | effective |
| Progress: | 100% |
| Version: | 3.1.0+ |
This help page lists the visible special properties. Visible special properties are viewable by the user via the browsing interfaces of the wiki.
The following table gives an overview of all 42 visible special properties provided by Semantic MediaWiki:
| Name | Description | Help | Added | Key |
|---|---|---|---|---|
| Allows value | Lists one permissible value for a property | help page | 1.0 | _PVAL
|
| Corresponds to | Gives the conversion factor for some unit of a physical quantity and the possible names for that unit | help page | 1.0 | _CONV
|
| Display units | Specifies a comma-separated list of units or formats that a property should use in display | help page | 1.0 | _UNIT
|
| 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 | _URI
|
| Has type | Assigns a datatype to a property | help page | 1.0 | _TYPE
|
| Imported from | Allows users to reuse elements of external vocabularies directly within the wiki | help page | 1.0 | _IMPO
|
| Provides service | Adds service links to properties | help page | 1.0 | _SERV
|
| Subproperty of | Lets you indicate that one property is a subproperty of another | help page | 1.0 | _SUBP
|
| Has fields | Defines a short list of fields with a fixed type and order for datatype Record | help page | 1.5.0 | _LIST
|
| Subcategory of | Lets you explicitly indicate that one category is a subcategory of another | help page | 1.5.0 | _SUBC
|
| Has subobject | Holds the subobjects set on a page | help page | 1.7.0 | _SOBJ
|
| Query depth | Holds the value of the property depth of a query | help page | 1.8.0 | _ASKDE
|
| Query format | Holds the name of the result format used in a query | help page | 1.8.0 | _ASKFO
|
| Query size | Holds the value of the number of conditions in a query | help page | 1.8.0 | _ASKSI
|
| Query string | Holds the conditions of the query as a string | help page | 1.8.0 | _ASKST
|
| Query duration | Holds the value of the duration a query took to execute | help page | 1.9.0 | _ASKDU
|
| MIME type | Holds the MIME type of an uploaded file | help page | 1.9.1 | _MIME
|
| Media type | Holds the Media type of an uploaded file | help page | 1.9.1 | _MEDIA
|
| Allows pattern | Pattern to match a permissible value | help page | 2.4.0 | _PVAP
|
| Display precision of | Allows to define the display precision in digits | help page | 2.4.0 | _PREC
|
| Has property description | Adds localizable context help to properties | help page | 2.4.0 | _PDESC
|
| Has uniqueness constraint | Allows to restrict value annotation to be unique | help page | 2.4.0 | _PVUC
|
| Language code | Handles BCP47 conform language codes specifying the language of the annotated text | help page | 2.4.0 | _LCODE
|
| Allows value list | Adds a reference to a list of permissible values for a property | help page | 2.5.0 | _PVALI
|
| External formatter URI | Declares an external URL with placeholders $1, $2 |
help page | 2.5.0 | _PEFU
|
| External identifier | Specifies an external identifier | help page | 2.5.0 | _PEID
|
| Has preferred property label | Adds localizable labels to a property | help page | 2.5.0 | _PPLB
|
| Is edit protected | Stores the status of an edit restriction of a page | help page | 2.5.0 | _EDIP
|
| Query parameters | Holds the parameters a query used to select its output | help page | 2.5.0 | _ASKPA
|
| Query source | Holds the identifier of an alternative (e.g. remote) query source | help page | 2.5.0 | _ASKSC
|
| Change propagation | Holds the new property specification of a property or category page | help page | 3.0.0 | _CHGPRO
|
| Is property group | Marks a category for holding properties belonging to a property group | help page | 3.0.0 | _PPGR
|
| Query state | Holds the status code a query uses to define its internal state | help page | 3.0.0 | _ASKCO
|
| Schema definition | Holds the definition of a schema what was added to namespace "smw/schema" | help page | 3.0.0 | _SCHEMA_DEF
|
| Schema description | Holds the description of a schema what was added to namespace "smw/schema" | help page | 3.0.0 | _SCHEMA_DESC
|
| Schema link | Holds the link of a schema what was added to namespace "smw/schema" | help page | 3.0.0 | _SCHEMA_LINK
|
| Schema tag | Holds the tags to a schema what was added to namespace "smw/schema" | help page | 3.0.0 | _SCHEMA_TAG
|
| Schema type | Holds the type of a schema what was added to namespace "smw/schema" | help page | 3.0.0 | _SCHEMA_TYPE
|
Conversely all special properties not listed here are not visible by the user.
Special property "Subcategory of"Lets you explicitly indicate that one category is a subcategory of another is only a visible 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]
"TypesRegistry.php" – The general characteristics of a special property are defined here.
