Modèle:GetFallback0/doc

Test for the presence of a fallback subpage within a specified template (when the non-fallback language specified in parameter does not provide some resource), and returns its code.

If no subpage is found matching the fallback languages returned by either {{GetFallback}} or {{GetFallback2}}, then this template will return the default content language code of the project (as reported by {{CONTENTLANGUAGE}}).

Usage

{{GetFallback0 |1= |2= }}

Fallback languages are determined in {{GetFallback}} and {{GetFallback2}}. When this template is used, it cannot test that the subpage discovered is a redirect : no fallback language determined in {{GetFallback}} and {{GetFallback2}} should be redirects, otherwise a template inclusion loop may occur, if a template uses this template (or {{Fallback}}) to retrieve an alternate translation for missing resources that it does not define itself.

For example the fallback of "pt-br" should be "pt", but there must not be any redirect from the fallback subpage "/pt" to "/pt-br" in the rendered page (but the reverse is possible to avoid using this template). The same is true for a subpage "/zh" that must not be redirected to "/zh-hans" or "/zh-hant" (but here also it is safe to create a redirect from "/zh-hans" and/or "/zh-hant" to "/zh").

⧼templatedata-doc-params⧽

Parameter	Description		Default	Status
1	The name of the template whose localized subpages are being searched for.		empty	required
2	The language code of a source language from which the code of an existing fallback subpage is being searched for.		The value of the current user's UI language, as returned by {{int:lang}}.	optional

Additional information

The template is intended to be used in the following namespaces: no namespace specified

The template is intended to be used by the following user groups: no user group specified

Relies on:
{{GetFallback}}, {{GetFallback2}}

⧼Seealso⧽

{{Fallback}}

Examples

The following examples are testing the existence of fallback subpages within template {{Language}}, and return their code.

You may click on the following link to select another UI language. Modèle:LanguageSelector

Code	Renders as
The project's default language is "{{CONTENTLANGUAGE}}".	The project's default language is "fr".
{{GetFallback0|Language|{{CONTENTLANGUAGE}}}}	fr
The current UI language is "{{int:lang}}".	The current UI language is "fr".
{{GetFallback0|Language|{{int:lang}}}}	fr
{{GetFallback0|Language}}	fr
{{GetFallback0|Language|pt-br}}	fr
{{GetFallback0|Language|pt}}	fr
{{GetFallback0|Language|zh-hans}}	fr
{{GetFallback0|Language|zh-hant}}	fr
{{GetFallback0|Language|zh}}	fr