Wikidata

Property talk:P6720

Latest comment: 3 years ago by Jura1 in topic Discussion

Documentation

interwiki prefix at Wikimedia
prefix used for the website on Wikimedia Foundation wikis. Qualify with "formatter URL" (P1630) from Special:Interwiki. If the URL changes, add the qualifier "end date" and create a new statement with new formatter.
Data typeExternal identifier
Domainwiki (Q171), website (Q35127), Wikimedia chapter (Q15924535), Wikimania (Q483279), Wikimedia user group (Q22337472) or Wikimedia thematic organization (Q24524653)
Allowed values[a-z0-9_-]+
Usage notesDon't include the colon (":"). Qualify with formatter url (P1630). Don't use for/confuse with interlanguage links (sample: "en:").
ExampleWikimedia Meta-Wiki (Q1063116) → meta
Wikidata (Q2013) → d
English Wikipedia (Q328) → wikipedia
English Wikipedia (Q328) → w
Wikimedia Commons (Q565) → c
Sourcehttps://meta.wikimedia.org/wiki/Special:Interwiki
https://www.mediawiki.org/wiki/Special:Interwiki
https://meta.wikimedia.org/wiki/Interwiki_map/detailed_table/former
https://sal.toolforge.org/production?p=0&q=interwiki
https://meta.wikimedia.org/wiki/Interwiki_map/detailed_table
https://meta.wikimedia.org/wiki/Talk:Interwiki_map
https://noc.wikimedia.org/conf/highlight.php?file=interwiki.php
https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/WikimediaMaintenance/+/refs/heads/master/dumpInterwiki.php
https://meta.wikimedia.org/wiki/Interwiki_map
Formatter URLhttps://www.wikipedia.org/wiki/Special:Search/$1:
Lists
Proposal discussionProposal discussion
Current uses
Total670
Main statement66298.8% of uses
Qualifier50.7% of uses
Reference30.4% of uses
Search for values
[create Create a translatable help page (preferably in English) for this property to be included here]
 
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#allowed qualifiers, SPARQL
 
Required qualifier “formatter URL (P1630)”: this property should be used with the listed qualifier. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#mandatory qualifier, SPARQL
 
Required qualifier “start time (P580)”: this property should be used with the listed qualifier. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#mandatory qualifier, SPARQL
 
Distinct values: this property likely contains a value that is different from all other items. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#Unique value, SPARQL (every item), SPARQL (by value)
 
Format “[a-z0-9_-]+”: value must be formatted using this pattern (PCRE syntax). (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#Format, SPARQL
 
 
Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#Entity types
 
Scope is as main value (Q54828448): the property must be used by specified way only (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#Scope, SPARQL
 
Item “official website (P856)”: Items with this property should also have “official website (P856)”. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#Item P856, SPARQL
 
Label required in languages: en: Entities using this property should have labels in one of the following languages: en (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6720#Label in 'en' language, search, SPARQL
 
This property is being used by:

Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

 
official website uses https, but formatter http
https is generally preferred. If the website can be accessed with https, you may want to request an update at m:Talk:Interwiki_map#Requests_for_updates. Once the interwiki table updated, add an "s" to the formatter (Help)
Violations query: SELECT ?item ?iw (CONCAT("[[",?iw,":]]") as ?iwlinked) ?f ?ws { ?item p:P6720 ?st . ?st ps:P6720 ?iw . ?st pq:P1630 ?f . ?st a wikibase:BestRank . ?item wdt:P856 ?ws . FILTER( contains ( str(?ws), "https:") ) FILTER( CONTAINS( ?f, "http:") ) }
List of this constraint violations: Database reports/Complex constraint violations/P6720#official website uses https, but formatter http
 
//
https is generally preferred. You may want to suggest an update at m:Talk:Interwiki_map#Requests_for_updates. Once the interwiki table updated, add "https:" to the formatter (Help)
Violations query: SELECT ?item ?iw (CONCAT("[[",?iw,":]]") as ?iwlinked) ?f { ?item p:P6720 ?st . ?st ps:P6720 ?iw . ?st pq:P1630 ?f . ?st a wikibase:BestRank . FILTER( strstarts( ?f, "//") ) }
List of this constraint violations: Database reports/Complex constraint violations/P6720#//
 
http:
https is generally preferred. If the website can be accessed with https, you may want to request an update at m:Talk:Interwiki_map#Requests_for_updates. Once the interwiki table updated, add an "s" to the formatter. This generally lists prefixes also covered by some of the other checks. (Help)
Violations query: SELECT ?item ?iw (CONCAT("[[",?iw,":]]") as ?iwlinked) ?f { ?item p:P6720 ?st . ?st ps:P6720 ?iw . ?st pq:P1630 ?f . ?st a wikibase:BestRank . FILTER( CONTAINS( ?f, "http:") ) }
List of this constraint violations: Database reports/Complex constraint violations/P6720#http:
 
best rank, but end date
If the prefix/formatter is no longer in use (it has an end date) and no new prefix/formatter is defined, no value should be added with preferred rank. (Help)
Violations query: SELECT ?item ?iw (CONCAT("[[",?iw,":]]") as ?iwlinked) ?f ?ws { ?item p:P6720 ?st . ?st ps:P6720 ?iw . ?st pq:P1630 ?f . ?st a wikibase:BestRank . ?st pq:P582 [] . }
List of this constraint violations: Database reports/Complex constraint violations/P6720#best rank, but end date
 
formatter URL domain not in official website(s)
Official website (P856) should include the domain used by the formatter URL qualifier. TODO: Add P856 statement, set current website to preferred rank. (Help)
Violations query: SELECT ?item ?iw ?f ?domain_f ?ws ?domain_ws WHERE { ?item p:P6720 ?st . ?st ps:P6720 ?iw . ?st pq:P1630 ?f . ?st a wikibase:BestRank . BIND(REPLACE(REPLACE(REPLACE(str(?f), "^.*//", ""), "/.*", ""), "^www\\.", "") as ?domain_f) FILTER NOT EXISTS { ?item p:P856 / ps:P856 ?ws0 . BIND(REPLACE(REPLACE(REPLACE(CONCAT(str(?ws0),"/"), "^.*//", ""), "/.*", ""), "^www\\.", "") as ?domain_ws0) FILTER( CONTAINS( ?domain_ws0, lcase(?domain_f) ) ) } FILTER NOT EXISTS { ?item p:P856 / ps:P856 ?ws1 . BIND(REPLACE(REPLACE(REPLACE(CONCAT(str(?ws1),"/"), "^.*//", ""), "/.*", ""), "^www\\.", "") as ?domain_ws1) FILTER( CONTAINS( lcase(?domain_f), ?domain_ws1 ) ) } }
List of this constraint violations: Database reports/Complex constraint violations/P6720#formatter URL domain not in official website(s)
 
item has dissolved date
item has dissolved, abolished or demolished date (P576). If this is correctly applied (i.e. the website is deleted), an update should be requested at m:Talk:Interwiki_map. Once the interwiki map is updated, the relevant changes should be done. This can be do add an end date qualifier to the statement and a new statement with "no value" in preferred rank. (Help)
Violations query: SELECT ?item ?value ?abolisheddate { ?item wdt:P6720 ?value; wdt:P576 ?abolisheddate }
List of this constraint violations: Database reports/Complex constraint violations/P6720#item has dissolved date
 
wikia still used
wikia generally changed to fandom.com. If the specific site changed, you may want to request an update at m:Talk:Interwiki_map#Requests_for_updates. Once the interwiki table updated, add the new formatter with preferred rank. (Help)
Violations query: SELECT ?item ?iw (CONCAT("[[",?iw,":]]") as ?iwlinked) ?f { ?item p:P6720 ?st . ?st ps:P6720 ?iw . ?st pq:P1630 ?f . ?st a wikibase:BestRank . FILTER( CONTAINS( ?f, "wikia.com") ) }
List of this constraint violations: Database reports/Complex constraint violations/P6720#wikia still used

Query edit

Current list edit 

# Interwiki table from P6720, current values only
# by Jura1, 2021-04-03 https://www.wikidata.org/wiki/Property_talk:P6720
SELECT ?item ?itemLabel ?itemDescription ?interwiki ?formatter ?added ?wmdb
{
	?item p:P6720 ?st .
	?st ps:P6720 ?interwiki .
	?st a wikibase:BestRank .
	OPTIONAL { ?st pq:P1630 ?formatter }
	OPTIONAL { ?st pq:P580 ?added }
	FILTER NOT EXISTS { ?st pq:P582 [] }
	OPTIONAL { ?item wdt:P1800 ?wmdb }
	SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

Try it!

Entire list edit 

# Interwiki table from P6720, with end date for prefixes that are no longer in use
# by Jura1, 2021-03-26 https://www.wikidata.org/wiki/Property_talk:P6720
SELECT ?item ?itemLabel ?itemDescription ?interwiki ?formatter ?added ?ended
{
	?item p:P6720 ?st .
	?st ps:P6720 ?interwiki .
	?st wikibase:rank ?goodRanks.
	VALUES ?goodRanks { wikibase:NormalRank wikibase:PreferredRank }
	OPTIONAL { ?st pq:P1630 ?formatter }
	OPTIONAL { ?st pq:P580 ?added }
	OPTIONAL { ?st pq:P582 ?ended }
	SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

Try it!

2019 link counts edit

No Wikidata property edit

New per year edit 

#defaultView:BarChart
SELECT ?year (COUNT(DISTINCT ?iw) as ?count) 
{
  ?item p:P6720 [ ps:P6720 ?iw ; pq:P580 ?start ] 
  FILTER NOT EXISTS { 
    ?item p:P6720 [ ps:P6720 ?iw ; pq:P580 ?start2 ] 
    FILTER( ?start2 < ?start)                
    }
  BIND(str(YEAR(?start)) as ?year)                   
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en,en"  }
}
GROUP BY ?year

Try it!

Changes per year edit 

#defaultView:BarChart
SELECT ?year (COUNT(DISTINCT ?iw) as ?count) 
{
  ?item p:P6720 [ ps:P6720 ?iw ; pq:P580 ?start ] 
  BIND(str(YEAR(?start)) as ?year)                   
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en,en"  }
}
GROUP BY ?year

Try it!

Todo edit

Discussion edit

Latest comment: 3 years ago2 comments1 person in discussion

References edit

From MxM, some entries get references in the format "reference URL: https://www.wikidata.org/wiki/<prefix>:". Given that Wikidata isn't generally allowed as reference URL, this creates a constraint violation. I'd remove these. Ideally, we would link to changes in wmf-config/interwiki.php, but I'm not quite sure how to add that. --- Jura 07:26, 31 March 2021 (UTC)Reply

  Done --- Jura 07:54, 2 April 2021 (UTC)Reply
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