Help:Transclusion

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Detailed reference page on this subject: Help:Template.

Transclusion refers to the process by which the entire contents of a page are inserted on to another page for the sake of convenience, speed of editing and/or tidiness of the source wikitext. The process works by applying the title of the page to be transcluded, with two braces {{}} on either side and sometimes a colon.

Templates[edit]

Pages created for the sole purpose of being useful to transclude are known as templates. Templates come in many varieties; some templates constitute generic messages that can be quickly and easily sent, while others contain pieces of text that are used in mass quantities. The use for these quick pieces of text or code are almost limitless, and there are literally hundreds of thousands in current use all over Wikimedia. They have their own namespace, Template:.

The braces assume, and it is implied by default, that the template namespace is to be transcluded; i.e., the syntax assumes that {{FOO}} refers to Template:FOO. However, all kinds of pages can be transcluded in every namespace so long as the namespace is specified: e.g., {{Meta:Help}} would be a viable and workable transclusion. Because of template: vs (main) confusion when transcluding, pages with no namespace prefix, as this one (Transclusion), are transcluded with a colon preceding the page name, like this: {{:Transclusion}}.

Link that is created[edit]

It is important to remember that transclusion creates a very real and direct link between the target page and the transcluded one; when the source page is changed, the transcluded text is changed with it. This especially applies to templates that are in mass use; many pages can be altered very radically by a small change. The volatility of this situation should be considered when making changes.

It is possible to see what pages are transcluded on a page, and where a page is transcluded, by use of the "What links here" link in the toolbox in the left hand panel.

Examples[edit]

The following is an example of transclusion {{Information thread}}:

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December 2016[edit]

Wikimedia-logo.svg 8: Wikimedia Foundation Board of Trustees publishes Statement on Healthy Community Culture, Inclusivity, and Safe Spaces.

November 2016[edit]

Bulbgraph.svg Nov 28 – Dec 12: You can vote on new tools and technical improvements in the 2016 Community Wishlist Survey.
Mediawiki-logo.png 12: Two-factor authentication is now available for all Wikimedia administrator, bureaucrat, checkuser, oversighter and edit filter manager accounts.
Wikimedia-logo.svg 26–27: The annual meeting of the Catalan community, Viquitrobada 2016, will take place in Valencia, Spain.
Bulbgraph.svg 14–21: You can propose new tools and technical improvements in the 2016 Community Wishlist Survey.
Wikipedia-W-bold-in-square.svg 1–30: 2016 Wikipedia Asian Month.
Wikimedia-logo.svg 1: Wikimedia Foundation announces selection of Victoria Coleman as Chief Technology Officer.

October 2016[edit]

Crystal filetypes.png Oct 4 – Nov 8: Legal Consultation on CC 4.0: The Wikimedia Foundation invites you to add comments and feedback on upgrading the default license for content on the Wikimedia projects to CC-By-SA 4.0.
Crystal filetypes.png Until Oct 16: Leadership development dialogue: The Community Engagement department invites you to discuss what leadership means in our movement.
Wikimedia-logo.svg 7–10: The third WikiConference North America will take place in San Diego, United States.
Wikimedia-logo.svg 1–2: The tenth Russian WikiConference took place in Saint Petersburg, Russia.


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Viewing that source will show that while that thread is complex, with a fair bit of text and a lot of use of code, all it takes is a simple application of {{Information thread}} here to transclude accurately, how it displays there. This is very handy for managing information on the wiki.

See also[edit]