Wikipedia:Lua/Modul/Vorlage:Soft redirect/en

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Modul: Dokumentation

Vorlage:Soft redirect – Module for generation of correct interwiki links in Template:Soft redirect.

Functions for Templates

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f
Standard task: create link in internal format.
Parameter (of template transclusion):
1
Link target (with or without leading colon :).
2
optional
Link text.
failsafe
Version management

The Failsafe interface is heading for version management of globally distributed Lua modules. It enables modules equipped with this interface to

  • ensure, that a library module required by a template or another module available as local copy does support certain functionality, or complain if not.
  • administrate global updating and linking of module codes via Wikidata.

The Failsafe interface is present both at template level and for direct Lua access.

The functions in detail are (not all supported yet completely by every library):

Parameter
Value Result current
nothing
false
local version ID »2020-12-16«
Minimal version version ID required at least
date in ISO format

It will be compared whether the current local implementation matches this version or later.

  • empty, if minimal version not achieved
  • 2001-01-01 → »2020-12-16«
  • 2099-01-01 → »«
wikidata version ID of global upstream
  • version ID at Wikidata
  • local, if not found there
»2020-12-16«
item ID of the Wikidata item
  • empty if not defined
Q104215207
~ Corresponding version ID locally and registered at Wikidata
  • empty, if up to date
  • version ID at Wikidata, if not equal
»«
@ Is the current (module) page linked correctly with Wikidata item?
  • empty, if linked to the item which is supposed
  • Iitem ID, if not
The return value is in template programming empty or under Lua false, otherwis a non-empty string as described.

Functions for Lua modules (API)

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Functions described above can be used by other modules:

local lucky, Softredirect = pcall( require, "Module:Softredirect" )
if type( Softredirect ) == "table" then
    Softredirect = Softredirect.Softredirect()
else
    -- failure; Softredirect is the error message
    return "<span class='error'>" .. Softredirect .. "</span>"
end

Subsequently there are available:

Softredirect.failsafe( atleast )
Versioning interface
  1. atleast
    optional
    nil or minimum version or wikidata or ~ for synchronisation
returns: Version ID as string or false

Dependencies

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None.