Template:Category series navigation/doc

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About[edit source]

{{Category series navigation}} is intended to be a minimal-input, near-universal template for automatically navigating most numerically adjacent categories.

Recognized category types
Type Example category BC(E)? Example output
Season 2001–02 FA Cup No Lua error in mw.title.lua at line 209: too many expensive function calls.
TV season Futurama season 1 episodes – Lua error in mw.title.lua at line 209: too many expensive function calls.
Office term (regular) MEPs 2004–2009 No Lua error in mw.title.lua at line 209: too many expensive function calls.
Office term (irregular) Wales AMs 2003–2007 No Lua error in mw.title.lua at line 209: too many expensive function calls.
Numerical range Taxonbars with 30–34 taxon IDs –
Decade 1990s in Scotland BC Lua error in mw.title.lua at line 209: too many expensive function calls.
Year 1999 in Scotland BC(E) Lua error in mw.title.lua at line 209: too many expensive function calls.
Year (auto-condensed) Candidates in the 2000 US presidential election – Lua error in mw.title.lua at line 209: too many expensive function calls.
Year (|skip-gaps=yes) Amusement parks opened in 1877 – Lua error in mw.title.lua at line 209: too many expensive function calls.
Ordinal (temporal) 2nd-century rabbis BC(E) Lua error in mw.title.lua at line 209: too many expensive function calls.
Ordinal (numeric) 9th Lok Sabha – Lua error in mw.title.lua at line 209: too many expensive function calls.
Ordinal (word) First Dynasty of Egypt – Lua error in mw.title.lua at line 209: too many expensive function calls.
Roman numeral Deputies of Legislature X of the Kingdom of Italy – Lua error in mw.title.lua at line 209: too many expensive function calls.
Mixed decade 1760s in the Province of Quebec (1763–1791) – Lua error in mw.title.lua at line 209: too many expensive function calls.
Mixed year 1778 establishments in the Province of Quebec (1763–1791) – Lua error in mw.title.lua at line 209: too many expensive function calls.

Searching behavior[edit source]

Most multi-year seasons/office terms/numerical ranges are acceptable, as long as the season duration/term length/range size is <= 10 , and the gap between seasons is <= 6 . For series exceeding either of these criteria, see/use {{Irregular category series navigation}}.

The length of each season is automatically determined from the originating category name, up to and including 10 

years. MOS:DATERANGE compliance is preferred, but some deviation is allowed and tracked for regular series with seasons > 1 year long. {{Category redirect}}s are followed, and tracked for either MOS contravention (to be corrected) or for navigational aid (no error). The gap size between successive seasons is also automatically determined, up to and including 6
years, and defaults to 0 (e.g. 1995–96 → 1996–97).

Automatically condensed years are supported for presidential categories only (but can be easily expanded as needed), for gaps up to and including 5 

years, and defaults to 1. To skip gaps of up to 50
years in any year categories, use |skip-gaps=yes.

Limitations[edit source]

Numerical limitations and AD/BC/E[edit source]

  • Season/office term categories do not work for any years BC, which will be hidden, because no working examples were found.
  • Decade categories recognize BC, but not BCE, because no working examples were found.
  • Ordinal & numeral words do not work above the ninety-ninth & ninety-nine, because no working examples were found.

Condensation[edit source]

  • Automatically condensed Olympics display is not supported due to peculiarities; use {{Winter Olympics by year category navigation}}, etc., instead.
  • Automatically condensed years are supported for US presidential categories only, due to their consistency; use |skip-gaps=yes as desired on other year categories.
  • |skip-gaps=yes currently only works when starting on a year category, and is not intended to find all hyphenated ranges, which allows it to span much larger gaps.

Work-arounds[edit source]

  • Base-name changes: create at least 2 logically numbered {{R from category navigation}} (1 backward & 1 forward), to join both related series.
  • Unaccounted-for name+number conventions: where a fixed number is part of the prefix or suffix text, e.g. Chapter 11 bankruptcies, a non-breaking space may force the template to work. See this fix, where {{title year}} skipped over 11 as part of a word rather than a discrete number. (This case has been accounted for and is no longer required in this example.)
  • General: for large, permanent gaps† between successive categories, use {{Preceding category}}, {{Category pair}}, {{Succeeding category}}, as needed, in addition to {{Category series navigation}} on both sides, or in the middle, of the gap. Even if {{Category series navigation}} is isolated, it has the benefit of confirming the absence of nearby categories to the reader or maintainer.
    †Permanent gaps, where there is a confirmed permanent absence of data, and not just a temporary, yet to be filled, gap on Wikipedia.
  • |skip-gaps=: create {{R from category navigation}} from an appropriate year to the hyphenated category that was not found.

Related CfDs[edit source]

Usage[edit source]

Typical usage
  • {{Category series navigation}}
Specify a minimum and/or maximum year to display
  • {{Category series navigation|min=-100}}
  • {{Category series navigation|min=100 BC}}
  • {{Category series navigation|min=1753|max=1810}}
  • {{Category series navigation|max=2030}}
To skip gaps in year categories
  • {{Category series navigation|skip-gaps=yes}}
To not automatically follow {{Category redirect}}s
  • {{Category series navigation|follow-redirects=no}}
Exceptional cases
  • {{Category series navigation|cat=2010s albums}} — to behave as if placed on |cat=; consider using {{Category pair}} instead of |cat=

Testing & debugging[edit source]

To test the output of the template on a particular category name, use the |testcase= parameter, and |testcasegap= if necessary:

  • {{Category series navigation|testcase=1770s in the Province of Quebec (1763–1791)|min=1760}} →

Lua error in mw.title.lua at line 209: too many expensive function calls.


  • {{Category series navigation|testcase=1770s in the Province of Quebec (1763–1791)|max=1790s}} →

Lua error in mw.title.lua at line 209: too many expensive function calls.


To see all links produced and/or tested, and what effect each has on their display, use |list-all-links=yes:

  • {{Category series navigation|testcase=Nations at the 2013 World Athletics Championships|min=2008|skip-gaps=yes|list-all-links=yes}} →
  1. Category:Nations at the 2006 World Athletics Championships (2006) (2006)
  2. Category:Nations at the 2007 World Athletics Championships (2007) (2007)
  3. Category:Nations at the 2008 World Athletics Championships (2008)
  4. Category:Nations at the 2008–2009 World Athletics Championships (2008–2009) (tried; not displayed)2
  5. Category:Nations at the 2008–09 World Athletics Championships (2008–09) (tried; not displayed)4
  6. Category:Nations at the 2009 World Athletics Championships → Category:Nations at the 2009 World Championships in Athletics (2009)
  7. Category:Nations at the 2011 World Athletics Championships → Category:Nations at the 2011 World Championships in Athletics (2011)
  8. Category:Nations at the 2015 World Athletics Championships → Category:Nations at the 2015 World Championships in Athletics (2015)
  9. Category:Nations at the 2017 World Athletics Championships → Category:Nations at the 2017 World Championships in Athletics (2017)
  10. Category:Nations at the 2019 World Athletics Championships (2019)
  11. Category:Nations at the 2020 World Athletics Championships (2020)
  12. Category:Nations at the 2020–2021 World Athletics Championships (2020–2021) (tried; not displayed)2
  13. Category:Nations at the 2020–21 World Athletics Championships (2020–21) (tried; not displayed)4
  14. Category:Nations at the 2021 World Athletics Championships (2021)
  15. Category:Nations at the 2021–2022 World Athletics Championships (2021–2022) (tried; not displayed)2
  16. Category:Nations at the 2021–22 World Athletics Championships (2021–22) (tried; not displayed)4
  • All possible element types are shown above (blue, red/grey, hidden, and redirect), and would otherwise display as:

Tracking categories[edit source]

Purge this page to update the totals

If the template encounters an issue, it displays an error message and/or places the category into one or more of the following tracking categories:

Maintenance required[edit source]


Maintenance possible[edit source]


Module maintenance possible[edit source]


Tracking only[edit source]


See also[edit source]


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