m (moved Transclusion to Help:Transclusion: More suited for Help NS and has better content than existing content in Help for this subject. (Preparing to do history merge)) |
m (1 revision: Import MediaWiki help files) |
Transclusion is generally the inclusion of the content of a document into another document by reference. In a Wikipedia context, it is the use of the template functionality of MediaWiki to include the same content in multiple documents without having to edit those documents separately. Template transclusion is the common way to use template messages, and is implemented by using a template tag, with the form:
{{template name}}
Occasionally one may want to use a template, but for one reason or another may not want to use transclusion. The automatic one-time copying of a template's code/text to the location of a template tag is called Template substitution or subclusion (substitution + transclusion). To subclude a template's code/text, the template tag is modified from the standard transclusion tag to a substitution tag, simply by adding subst:, creating a tag with the form: {{subst:template name}}.
Contents |
To transclude any source page (within a single MediaWiki project, such as en:Wikipedia) within another target page, include the following code:
{{SOMEPAGE}}
Whenever the target page A with this code is rendered, the engine will include in that place not the code itself, but the entire content of the source page B, SOMEPAGE.
For example, you might decide to place a welcome message on every newcomer's Talk Page. Transclusion creates a "live" link between the template-page and the target-page(s) upon which the message should appear. When the template is edited, all the target-pages are edited too.
For example, you might decide to create a (template) page with your mailing address and include that template on not only your page, but all your friends' pages, too. When you move your television and couch to another apartment, you will change your address template, and automatically, that new information will appear on all your friends' pages.
Ted Nelson coined the term "transclusion," as well as "hypertext" and "hypermedia", in his 1982 book, Literary Machines.
By using "noinclude", "onlyinclude" and "includeonly" markup, it is possible to transclude part of a page rather than all of it. Such partial transclusions can also be achieved by transcluding from other pages such as subpages. It is often useful not to transclude some information, such as template documentation.
For an example of how this technique can be applied to simplify the creation of summary articles, see [1], which consisted of a collection of transcluded lead paragraphs from several main articles.
One can cut and paste the text to be transcluded into a subpage, then use the name of the subpage in the transclusion template. This approach can only be used with subpages from User, Talk or Wikipedia pages; currently, subpages cannot be created from main article pages.
Example: you want to discuss the deletion and redirecting of Pussycat to Cat. First, create the subpage Talk:Pussycat/Let's delete Pussycat!, write your comment into it, then transclude it in Talk:Pussycat and Talk:Cat using the template {{Talk:Pussycat/Let's delete Pussycat!}}. Comments posted in either talk page will be shown in both.
Some pages on Special:Specialpages can be transcluded, e.g. Special:Newpages
Sample: {{Special:Newpages/3}} gives 3 new pages.
fr:Wikipédia:Inclusion ko:위키백과:문서 끼워넣기 yi:װיקיפּעדיע:אריינשטעלן zh:Wikipedia:嵌入包含 pt:Wikipedia:Predefinições
