A namespace is a collection of pages which have content with a similar purpose, i.e. pages where the intended use is the same. Namespaces can be thought of as partitions of different types of information within the same wiki, and keep "real" content separate from user profiles, help pages, etc. The namespace prefix of a page forms part of the title of a page, separated with a colon (:).
As said, pages exist within a namespace, and this can be distinguished using the namespace prefix of a page, which forms part of the title of a page, separated with a colon (:).
For example:
Title Namespace CodeFoo Main 0 Template:Foo Template 10 Module:Foo Module 828
The "main namespace" does not have a prefix. Also, pages in the main namespace cannot have names starting with any of the existing namespaces prefixes followed by a colon.
Pages can be moved between namespaces simply by changing the prefix part of their title.
Namespace prefixes can be translated, and aliases (helpful in shortcuts) can be configured for each (see $wgNamespaceAliases ). All namespaces also have a "canonical" prefix, which works on all wikis regardless of configuration. Aliases and canonical names can be used in links, when performing a search, and in the page title with the help of the {{DISPLAYTITLE}} magic word.
Each namespace has a corresponding namespace index. Within the database, the title is split into namespace index and text title, and this is used for storage in the page.page_namespace and page.page_title columns, among others.
Most namespaces have an associated discussion namespace (or "talk" namespace). All discussion namespaces have odd-integer indices, and the discussion namespace index for a specific namespace with index n is n+1. The namespaces with even-integer indices are subject namespaces (note that this is a distinct concept from content namespaces). The subject-talk duality can be explored using the {{SUBJECTPAGENAME}} and {{TALKPAGENAME}} magic words. The <body> tag of pages in talk namespaces has the ns-talk CSS class, which might be useful for styling.
MediaWiki ships with 18 built-in namespaces:
The full list is presented in the table below.
ID Name Purpose Talk 0 (Main) "Real" content articles .[1] Talk 1 2 User User pages .[2] User talk 3 4 Project Information about the wiki.[3] Project talk 5 6 File Media description pages File talk 7 8 MediaWiki Site interface customization[4] MediaWiki talk 9 10 Template Template pages Template talk 11 12 Help Help pages Help talk 13 14 Category Category description pages Category talk 15 -1 Special Holds special pages N/A -2 Media Alias for direct links to media filesEach namespace also has a constant derived from its name, with all letters in uppercase, spaces replaced by underscores, and prefixed by NS_. For example, the constant for the "User talk" namespace is NS_USER_TALK. A complete list can be found in Manual:Namespace constants .
$wgMetaNamespace , which unless manually set otherwise, defaults to $wgSitename .in this namespace additionally require
editsitecss
and
editesitejs
permissions.
Extensions and site administrators can define additional namespaces to group additional classes of pages together. For a thorough overview, see Manual:Using custom namespaces .
FunctionalitySome namespaces, like Project and Help, only exist for convenience and do not have any extra functionality compared to the Main namespace.
Template namespace pages can be transcluded without namespace prefix.
User namespace pages are associated with user accounts or IP addresses. Changes to user talk pages generate an automatic message notification.
Pages in the "MediaWiki" namespace are used to override default messages in language file and can only be edited by administrators or other users with the editinterface permission.
File and Category pages have special functionality, as described in Help:Managing files and Help:Categories . Files can be moved by users with the "movefile" right. Category pages can be moved by users with the "move-categorypages" right.
All pages in discussion namespaces have a "post a comment" feature.
See alsoRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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