Template:Formatter link/doc

Wikidata contains many examples of "External identifiers" such as ATC code (P267) – see Anatomical Therapeutic Chemical Classification System.

These codes are used with formatter URL (P1630) such as http://www.whocc.no/atc_ddd_index/?code=$1 where the $1 is to be substituted by the ATC code.

This template takes an external identifier code as |code= and uses a formatter url as |url= to construct a link to the external resource; an optional |label= parameter sets the text of the link, defaulting to the value of |code= otherwise.

Supplying the code as a parameter to this template allows one call to be made to Wikidata to fetch the code.

Example

For aluminium acetoacetate (Q26979), ATC code (P267):

• {{Formatter link |url=http://www.whocc.no/atc_ddd_index/?code=$1 |code={{wdib |P267 |qid=Q26979 |fwd=ALL |osd=n |noicon=y |maxvals=1}} }} → A02AB05

The formatter url to use for ATC code (P267) can be found from:

• {{wdib |P1630 |qid=P267 |fwd=ALL |osd=n}} → https://www.whocc.no/atc_ddd_index/?code=$1 

In infoboxes, it will generally be hard-coded because it is specific to the infobox field. Otherwise the following can be used if Wikidata changes of the formatter url should be tracked:

• {{Formatter link |url={{wdib |P1630 |qid=P267 |fwd=ALL |osd=n |noicon=y}} |code={{wdib |P267 |qid=Q26979 |fwd=ALL |osd=n |noicon=y |maxvals=1}} }}

See also

• {{Wikidata ID}} and {{Wikidata ID line}}
• {{format link}}, a similarly-named but completely unrelated template

Template data

Combines a Wikidata “formatter URL (P1630)” with an id code to produce a URL

Template parameters

This template prefers inline formatting of parameters.

Parameter		Description	Type	Status
code	code	the unique ID value of the target page	Unknown	required
url	url	the Wikidata “formatter URL (P1630)”	Unknown	required
label	label	the text of the link (defaults to the value of “code”)	Unknown	optional