Template:Category pair

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Usage[change source]

Typical usage should be on dissimilar preceding/succeeding categories, or where a large gap exists in otherwise sequential categories. For similarly named sequential categories with gaps less than 5 years, use {{Navseasoncats}} instead.

  • For 2 adjacent categories, a preceding Category:NAME1, and a succeeding Category:NAME2, place:
{{Category pair|NAME1|NAME2}}
at the top of the category page. Each category is displayed only if it exists. If neither category exists, nothing will be displayed.
  • If there is no succeeding category, you may simply place:
{{Category pair|NAME1}}
an the top of the category page.
  • If there is no preceding category, then leave the first parameter empty, and simply place:
{{Category pair||NAME2}}
an the top of the category page.

Examples[change source]

Preceding and succeeding categories, both exist
Preceding category only, which exists
Succeding category only, which exists
Preceding and succeeding categories, only preceding exists
  • {{Category pair|1934 British Empire Games|1942 British Empire Games}}
Preceding and succeeding categories, only succeeding exists
  • {{Category pair|1946 British Empire Games|1954 British Empire and Commonwealth Games}}
Two non-existent categories, so no output

Error checking[change source]

Only the first two parameters are processed, others are ignored.

If more than two parameters are supplied, a warning message is shown when the page is previewed. When it is saved, the page is added to the hidden tracking category: Category:Pages using category pair with more than 2 parameters.

If more than two parameters are supplied, the template is unlikely to do what the editor intended. For Category:NAME1, Category:NAME2, and Category:NAME3, for example:

  • {{Category pair|NAME1|NAME2|NAME3}} will ignore Category:NAME3, and
  • {{Category pair|NAME1||NAME2}} will ignore Category:NAME2, because a duplicate | character between the two categories causes Category:NAME2 to be the third parameter rather the second.

Tracking categories[change source]

If neither parameter is a category which currently exists the template will produce no output. This is not necessarily an error; the other categories may simply be part of an incomplete series which will be completed in due course
See above: Error checking

See also[change source]