Property talk:P2191

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Vegetti Catalog of Fantastic Literature NILF ID
numeric identifier within the Vegetti Catalog of Fantastic Literature

Applicable "stated in" value	Vegetti Catalog of Fantastic Literature (Q23023088)
Data type	External identifier
Domain	human (Q5), pen name (Q127843), pseudonym (Q61002), group of humans (Q16334295), publisher (Q2085381), series of creative works (Q7725310), publication (Q732577) or creative work (Q17537576)
Allowed values	1\d{6}|[1-5]\d{5}|[1-9]\d{4} (five-to-seven-digit numeric string, between 10000-499999 or 1000000-1999999)
Example	Urania (Q4006309) → 70036 Jean-Jacques Rousseau (Q6527) → 23910 Gruppo Mondadori (Q85355) → 60010 The Hitchhiker's Guide to the Galaxy pentalogy (Q25169) → 1000060
Source	http://www.fantascienza.com/catalogo
Formatter URL	https://www.fantascienza.com/catalogo/NILF$1 http://nilf.it/$1
Tracking: usage	Category:Pages using Wikidata property P2191 (Q54936275)
Related to country	Italy (Q38) (See 396 others)
See also	Internet Speculative Fiction Database author ID (P1233)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Mix'n'match (Report) Database reports/Humans with missing claims/P2191 Database reports/Constraint violations/P2191 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 9,511 Main statement 7,633 out of 12,755 (60% complete) 80.3% of uses Qualifier 4 <0.1% of uses Reference 1,874 19.7% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “human (Q5), pen name (Q127843), pseudonym (Q61002), group of humans (Q16334295), publisher (Q2085381), series of creative works (Q7725310), publication (Q732577), creative work (Q17537576)”: item must contain property “instance of (P31)” with classes “human (Q5), pen name (Q127843), pseudonym (Q61002), group of humans (Q16334295), publisher (Q2085381), series of creative works (Q7725310), publication (Q732577), creative work (Q17537576)” or their subclasses (defined using subclass of (P279)). (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/P2191#Type Q5, Q127843, Q61002, Q16334295, Q2085381, Q7725310, Q732577, Q17537576, SPARQL

Format “[1-9]\d{4}|[1-5]\d{5}|1\d{6}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2191#Format, hourly updated report, SPARQL

Single value: this property generally contains a single value. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2191#Single value, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2191#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

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/P2191#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): 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/P2191#Scope, SPARQL

Label required in languages: it: Entities using this property should have labels in one of the following languages: it (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/P2191#Label in 'it' language, search, SPARQL

Pattern ^NILF([1-5]\d{4})/[a-z-]+/?$ will be automatically replaced to \1. Testing: TODO list

Pattern ^NILF([1-5]\d{4})$ will be automatically replaced to \1. Testing: TODO list

This property is being used by: it:Template:Catalogo SF, it:Template:Collegamenti esterni Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Single numeric identifier space

NILF seems to be a single numeric identifier space regardless of what type of identifier it refers to. A description of the ranges are available here: Cos'è il NILF. Here are some examples:

• A creator (Q2500638): "autori" (10000–59999)
  • http://www.fantascienza.com/catalogo/NILF11815
  • http://www.fantascienza.com/catalogo/A000.htm#1815 (JavaScript push to legacy)
    • http://www.fantascienza.com/catalogo/autori/?legacy=1815 (adds 10000)
  • http://www.fantascienza.com/catalogo/autore.php?id=1815 (adds 10000)
  • http://nilf.it/11815
  • http://www.fantascienza.com/catalogo/autori/NILF11815/valerio-evangelisti/
• A publisher (Q2085381): "editori" (60000–69999)
  • http://www.fantascienza.com/catalogo/NILF60010
  • http://nilf.it/60010
  • http://www.fantascienza.com/catalogo/editori/NILF60010/arnoldo-mondadori-editore/
• A series of creative works (Q7725310): "collane" (70000–99999)
  • http://www.fantascienza.com/catalogo/NILF70036
  • http://nilf.it/70036
  • http://www.fantascienza.com/catalogo/collane/NILF70036/urania/
• A publication (Q732577): "volumi" (100000–499999)
  • http://www.fantascienza.com/catalogo/NILF109136
  • http://www.fantascienza.com/catalogo/ajax/_info_volume.php?id=109136
  • http://nilf.it/109136
  • http://www.fantascienza.com/catalogo/volumi/?legacy=09139
  • http://www.fantascienza.com/catalogo/volumi/NILF109136/cherudek/
• A creative work (Q17537576): "opere" (1000000–1999999)
  • http://www.fantascienza.com/catalogo/NILF1030751
  • http://www.fantascienza.com/catalogo/ajax/_lista_edizioni_breve.php?id=1030751
  • http://nilf.it/1030751
  • http://www.fantascienza.com/catalogo/opere/NILF1030751/cherudek/

As such, I believe the domain should be expanded (and perhaps the identifiers restricted to numeric). For now, I added format and constraint specifiers for the current allowed range (of "autori": "NILF" + 10000–59999). Here is some historical discussion it:Discussioni portale:Fantascienza/Archivio3#Fantascienza.com/catalogo 50.53.1.33 00:55, 10 March 2017 (UTC)

I agree with the extension proposed, and I also think that the formatter URL should be changed to http://nilf.it/$1. @Marcok:, cosa ne pensi? --Epìdosis 10:07, 25 August 2019 (UTC)

I agree both to expand the range of application of the identifier and if possible to turn the parameter to numeric only. --Marcok (talk) 06:56, 9 September 2019 (UTC)

@Epìdosis, Marcok:  Done, please check if it is all ok. I'm going to replace all the 2.000+ identifiers removing the 'NILF' part. --Horcrux (talk) 08:54, 7 November 2019 (UTC)

Here the bot contributions. --Horcrux (talk) 13:37, 7 November 2019 (UTC)