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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November 2017[edit]

Bulbgraph.svg 6–19: You can propose new tools and technical improvements in the 2017 Community Wishlist Survey.
Commons-logo.svg 1-30: First edition of the Wiki Science Competition.
Wikipedia-W-bold-in-square.svg 1: Third edition of the Wikipedia Asian Month.

October 2017[edit]

Wikimedia-logo.svg 27: The Wikimedia Foundation announced the appointment of Toby Negrin as Chief Product Officer (CPO).
Wikimedia-logo.svg 26: You are invited to declare your endorsement and voice your opinion on the finalized strategic direction.
Wikimedia-logo.svg 16: The Wikimedia Foundation announced the appointment of Raju Narisetti to its Board of Trustees for a term of three years effective October 2017.
Wikimedia-logo.svg 13: The Funds Dissemination Committee invites you to review any or all submitted proposals for Annual Plan Grants during this community review period (1–30 October 2017).
Commons-logo.svg 11: Wikimedia Commons will be in read only mode for approximately 30 minutes on Wednesday, 11 October, starting at 6:00 UTC.

September 2017[edit]

Wikimedia-logo.svg 29: The Fundraising Team published the 2016-2017 Fundraising Report.

August 2017[edit]

Wikimedia-logo.svg 8–24: Share your feedback on the draft strategic direction, a basis on which strategic plans will be built.

July 2017[edit]

Crystal filetypes.png 1-31: Join the Cycle 3 of the Wikimedia Movement Strategy discussions, and debate about the challenges identified by the research.


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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]