Property talk:P1798

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ISO 639-5 code
3-letter identifier for language family or collective code per ISO 639-5

Data type	External identifier
Template parameter	iso5 in w:en:Template:Infobox language family, iso5 in w:fr:Template:Infobox Langue
Domain	According to this template: language family (Q25295) According to statements in the property: languoid (Q17376908) When possible, data should only be stored as statements
Allowed values	[a-z]{3} (3 basic Latin lowercase letters)
Example	Greek (Q9129) → grk Algic languages (Q721612) → aql
Source	http://www.loc.gov/standards/iso639-5/
Formatter URL	https://iso639-3.sil.org/code/$1
Tracking: usage	Category:Pages using Wikidata property P1798 (Q26250095)
See also	ISO 639-1 code (P218), ISO 639-2 code (P219), ISO 639-3 code (P220), ISO 639-6 code (P221)
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 Database reports/Constraint violations/P1798 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 166 Main statement 164 98.8% of uses Qualifier 2 1.2% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Format “[a-z]{3}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1798#Format, hourly updated report, SPARQL

Type “languoid (Q17376908)”: item must contain property “instance of (P31)” with classes “languoid (Q17376908)” 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/P1798#Type Q17376908, 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/P1798#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

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

List of violations of this constraint: Database reports/Constraint violations/P1798#Single value, hourly updated report, SPARQL

Conflicts with “ISO 639-3 code (P220)”: this property must not be used with the listed properties and values. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Albanian (Q8748), Armenian (Q8785), Basque (Q8752), Chinese (Q7850), Japanese (Q5287), Quechua (Q5218)
List of violations of this constraint: Database reports/Constraint violations/P1798#Conflicts with P220, search, SPARQL

Item “IETF language tag (P305)”: Items with this property should also have “IETF language tag (P305)”. (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/P1798#Item P305, search, 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/P1798#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/P1798#Scope, SPARQL

This property is being used by: ru:Шаблон:Языковая группа hy:Կաղապար:Տեղեկաքարտ Լեզու, hy:Կաղապար:Տեղեկաքարտ Լեզու արւմտ. it:Template:Lingua fy:Berjocht:Universele ynfoboks taalfamylje nap:Modello:Lengua fr:Modèle:Infobox Langue ang:Bysen:Cyþþubox sprǣc be:Шаблон:Моўная група vec:Modèl:Łengoa, vec:Modèl:Infobox de Łéngua, vec:Modeło:Infobox de Łéngua ca:Plantilla:Infotaula de llengua, ca:Plantilla:Infotaula llengua sc:Template:Limba az:Şablon:Dil qrupu inh:Ло:Меттай тоаба lij:Template:Léngoa ga:Teimpléad:WD Bosca Sonraí Teanga ba:Ҡалып:Яз-группа, ba:Ҡалып:Тел төркөмө roa-tara:Template:Lingua, roa-tara:Template:Lènga ce:Кеп:Меттанийн тоба Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)