Property talk:P3303

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third-party formatter URL
URI template from which "$1" can be automatically replaced with the effective property value on items; for sites other than the primary issuing body of the identifier concerned

Represents	third-party formatter URL (Q114768930)
Has quality	unofficial (Q29509080)
Data type	String
Domain	According to this template: websites re-using other bodies' external-ids According to statements in the property: Wikidata property for an identifier (Q19847637) or unique identifier (Q6545185) When possible, data should only be stored as statements
Allowed values	(https?:\/\/|steam:\/\/|info|urn|skype|tel|tg)[\wè\d\-\.,\/\?=&:_%+#~;!А-яåЁё()@|\[\]\*{}]*\$1[\w\d\-\.,\/\?=&:_%+#~;!А-яåЁё()@|\[\](){}]*
Usage notes	use in statements on properties
Example	GND ID (P227) → https://lobid.org/gnd/$1 ISBN-13 (P212) → http://errata.wikidot.com/$1
See also	formatter URL (P1630), ARK formatter (P8054), applies if regular expression matches (P8460)
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 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/P3303 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 916 Main statement 913 99.7% of uses Qualifier 3 0.3% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

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/P3303#Unique value, SPARQL (every item), SPARQL (by value)

Format “(?:https?://|steam://|info|urn|skype|tel|tg)[\wè\d\-.,/?=&:_%+#~;!А-яåЁё()@|[\]*{}]*\$1[\w\d\-.,/?=&:_%+#~;!А-яåЁё()@|[\](){}]*”: 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/P3303#Format, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P3303#Scope, hourly updated report, SPARQL

Qualifiers “applies if regular expression matches (P8460), syntax clarification (P2916), regular expression syntax (P4240), operator (P137), file format (P2701), has use (P366), applies to part, aspect, or form (P518), language of work or name (P407), uses (P2283), reason for deprecated rank (P2241), object named as (P1932), media type (P1163)”: this property should be used only with the listed qualifiers. (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/P3303#allowed qualifiers, SPARQL

Type “Wikidata property for an identifier (Q19847637), unique identifier (Q6545185)”: item must contain property “instance of (P31)” with classes “Wikidata property for an identifier (Q19847637), unique identifier (Q6545185)” 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/P3303#Type Q19847637, Q6545185, SPARQL

Allowed entity types are Wikibase property (Q29934218), 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/P3303#Entity types

Required qualifier “language of work or name (P407)”: 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/P3303#mandatory qualifier, SPARQL

How to use?

Opposition to Wikidata:Property proposal/Directory of Open Access Journals ID, now Directory of Open Access Journals ID (P5115), pointed to P3303. On ISSN (P236) it is used, but how can one mark an individual item? For example at International Journal of Molecular Sciences (Q3153277) it says that two ISSN exists in DOAJ ("stated in"), but no use of P3303.

@Gerwoman, Pigsonthewing, Vladimir Alexiev:

77.179.61.171 21:02, 4 May 2018 (UTC)

Again, User:ArthurPSmith proposed to use P3303, this time at Wikidata:Property proposal/Deutsche Biographie person ID: /Yes, but that was after a long discussion that still left some doubts there should be a better way. third-party formatter URL (P3303) was designed for this - so I guess the question here is whether there's a similar issue that this dataset covers only a subset of what's in the full GND identifiers list (which I'm guessing is the case). ArthurPSmith (talk) 19:12, 27 June 2018 (UTC)/

But it is still unclear how to use the formatter, AND to indicate at the item that a project has information for that topic. The alternative site could only have a subset covered, how is that marked? 2.247.46.35 12:13, 28 June 2018 (UTC)

What qualifier to use to indicate who is "providing" the URL pattern?

For example, how can I give the following {{|P3303}} for WikiPathways ID (P2410) provided by the PubChem (Q278487)? --Egon Willighagen (talk) 05:08, 27 August 2020 (UTC)

Okay, I see it now: operator (P137). Solved. --Egon Willighagen (talk) 05:17, 27 August 2020 (UTC)