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<!-- Please place categories where indicated at the bottom of this page and interwikis at Wikidata (see [[Wikipedia:Wikidata]]) -->
A helper module to find the most specific chronology [[WP:Portals|portal]] which actually exists for a given year or decade. Used to simplify linking to a chronology portal.
;October 2019 update
All by-year and by-century portals have been deleted. There are now only 8 decade portals, listed in [[:Category:Decades portals]].
So all checking for century and year portals has been disabled.
If any of the decade portals are deleted, then this module should be edited to remove that decade from the table existingDecadePortals
== Parameters ==
Takes one parameter, which must be either a year (e.g. "1879", "1123") or a decade (e.g. "1940s", "730s").
If the parameter is missing, empty, or does not fit the required format, an empty string is returned.
== Output ==
If a portal is found, returns its name without the namespace prefix, e.g.
* for "[[Portal:1980s]]" return <code><nowiki>1980s</nowiki></code>
* for "[[Portal:19th century]]" return <code><nowiki>19th century</nowiki></code>
If no portal is found, it returns an empty string.
== Usage ==
;Year parameter
<code><nowiki>{{#invoke: FindYDCportal | findydcportal |YYYY}}</nowiki></code> ... where <code><nowiki>YYYY</nowiki></code> is a 3- or 4-digit year
;Decade parameter
<code><nowiki>{{#invoke: FindYDCportal | findydcportal |YYY0s}}</nowiki></code> ... where <code><nowiki>YYY0s</nowiki></code> is a 3- or 4-digit decade
== Examples ==
;Years
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |2018}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |2018}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1935}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1935}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1857}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1857}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |736}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |736}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1800}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1800}}
;Decades
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |2000s}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |2000s}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1940s}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1940s}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |560s}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |560s}}
;Missing parameter
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal}}
;Empty parameter
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal | }}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal | }}
;Invalid parameter
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal | 1927-related}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal | 1927-related}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal | Swedish chef}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal | Swedish chef}}
== Logic ==
If the parameter is a year:
# If the year portal exists, return its name.<br>Otherwise try the decade.
# If the decade portal exists, return its name.<br>Otherwise try the century
# If the century portal exists, return its name.<br>Otherwise return an empty string
If the parameter is a decade:
# If the decade portal exists, return its name.<br>Otherwise try the century
# If the century portal exists, return its name.<br>Otherwise return an empty string
== See also ==
* [[Template:Portal]]
* [[Template:Portalbar]]
* [[Wikipedia:Portals]]
<includeonly>{{#ifeq:{{SUBPAGENAME}}|sandbox | |
<!-- Categories below this line, please; interwikis at Wikidata -->
}}</includeonly>
{{High-use| 150966 }}
<!-- Please place categories where indicated at the bottom of this page and interwikis at Wikidata (see [[Wikipedia:Wikidata]]) -->
A helper module to find the most specific chronology [[WP:Portals|portal]] which actually exists for a given year or decade. Used to simplify linking to a chronology portal.
;October 2019 update
All by-year and by-century portals have been deleted. There are now only 8 decade portals, listed in [[:Category:Decades portals]].
So all checking for century and year portals has been disabled.
If any of the decade portals are deleted, then this module should be edited to remove that decade from the table existingDecadePortals
== Parameters ==
Takes one parameter, which must be either a year (e.g. "1879", "1123") or a decade (e.g. "1940s", "730s").
If the parameter is missing, empty, or does not fit the required format, an empty string is returned.
== Output ==
If a portal is found, returns its name without the namespace prefix, e.g.
* for "[[Portal:1980s]]" return <code><nowiki>1980s</nowiki></code>
* for "[[Portal:19th century]]" return <code><nowiki>19th century</nowiki></code>
If no portal is found, it returns an empty string.
== Usage ==
;Year parameter
<code><nowiki>{{#invoke: FindYDCportal | findydcportal |YYYY}}</nowiki></code> ... where <code><nowiki>YYYY</nowiki></code> is a 3- or 4-digit year
;Decade parameter
<code><nowiki>{{#invoke: FindYDCportal | findydcportal |YYY0s}}</nowiki></code> ... where <code><nowiki>YYY0s</nowiki></code> is a 3- or 4-digit decade
== Examples ==
;Years
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |2018}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |2018}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1935}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1935}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1857}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1857}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |736}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |736}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1800}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1800}}
;Decades
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |2000s}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |2000s}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |1940s}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |1940s}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal |560s}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal |560s}}
;Missing parameter
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal}}
;Empty parameter
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal | }}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal | }}
;Invalid parameter
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal | 1927-related}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal | 1927-related}}
* <code><nowiki>{{#invoke: FindYDCportal | findydcportal | Swedish chef}}</nowiki></code> → {{#invoke: FindYDCportal | findydcportal | Swedish chef}}
== Logic ==
If the parameter is a year:
# If the year portal exists, return its name.<br>Otherwise try the decade.
# If the decade portal exists, return its name.<br>Otherwise try the century
# If the century portal exists, return its name.<br>Otherwise return an empty string
If the parameter is a decade:
# If the decade portal exists, return its name.<br>Otherwise try the century
# If the century portal exists, return its name.<br>Otherwise return an empty string
== See also ==
* [[Template:Portal]]
* [[Template:Portalbar]]
* [[Wikipedia:Portals]]
<includeonly>{{#ifeq:{{SUBPAGENAME}}|sandbox | |
<!-- Categories below this line, please; interwikis at Wikidata -->
}}</includeonly>