Module:Wikidata
This module is a modification of the original at w:Module:Wikidata which was created 19 May 2013.
Methods
The module "Wikidata" contains the following methods, that allow the calling script to retrieve the value for any property from Wikidata by supplying the property ID as the first parameter:
- getValue: Returns wiki-linked values, if applicable. All other values will be output similar to {{#property:}}, except that if values with preferred rank exist, then only they are returned.
- getRawValue: Returns non-linked property values and numbers with the thousand separator. It also returns the plain numeric value of a property which is a quantity. All other values will be output similar to {{#property:}}, including normal values, even if preferred values exist.
- getDateValue: Special method to return formatted dates. The default date format is [day month year]; an optional third parameter can be added for other date formats: for [month day, year], add "mdy"; for [month year], add "my"; for year only, add "y". A further optional parameter, which must be fourth, such as "BCE", may be added to override the default "BC" that is suffixed for dates BC.
- getImages: Returns all of the images of a particular property, e.g. image (P18), Gene Atlas Image (P692), etc. Parameters are
| propertyID | value / FETCH_WIKIDATA / nil | separator (default=space) | size (default=220px). The returned text will be in the format [[File:Filename | size]] for each image with a selectable size and separator (which may be html). If a property is supplied that is not of type "commonsMedia", it will return empty text. - getUnits This takes a propertyID which is a quantity as the first parameter, and returns the name of the units that the property is using on the current page. It returns empty if the property is not a quantity type or if the value is not set. The second parameter may be used to override fetching from Wikidata, if it is anything other than "FETCH_WIKIDATA".
- getUnitID This takes a propertyID which is a quantity as the first parameter, and returns the QID of the units that the property is using on the current page. It returns empty if the property is not a quantity type or if the value is not set. The second parameter may be used to override fetching from Wikidata, if it is anything other than "FETCH_WIKIDATA".
Wikidata qualifier values (if present) can be retrieved by the following methods:
- getQualifierValue: returns only wiki-linked values, if applicable.
- getRawQualifierValue: returns non-linked values
- getQualifierDateValue: returns formatted dates
If the property is not defined in Wikidata for the article that invokes this code, then an empty string ("") is returned.
Other methods:
- pageId: returns the Wikidata id (Q…) of the current page or nothing if the page is not connected to Wikidata
- getTAValue: gets the TA98 (Terminologia Anatomica first edition 1998) values for property P1323. It takes no parameters and constructs its output as a list, with each value linked to an external resource. This is an exemplar for writing calls that need to return external links.
- ViewSomething: gets anything in the structured data, including labels, descriptions, references and interwiki links. See [1]
- getSiteLink: gets name of a page in given in argument wiki (like enwikiquote for English Wikiquote).
- Dump: spies the structured data. It uses the same arguments as ViewSomething. Try this with preview only to see results. That helps you a lot in developing Lua scripts that access the data. If used without arguments, it dumps everything including labels, descriptions, references and interwiki links. See [2]
- getImageLegend: returns an image legend (image is property P18; image legend is property P2096).
- Call as
{{#invoke:Wikidata |getImageLegend | <PARAMETER> | lang=<ISO-639code> |id=<QID>}} - Returns PARAMETER, unless it is equal to "FETCH_WIKIDATA", from Item QID (expensive call). If QID is omitted or blank, the current article is used (not an expensive call). If lang is omitted, it uses the local wiki language, otherwise it uses the provided ISO-639 language code.
- The label is returned from the first image with 'preferred' rank; or from the first image with 'normal' rank if no image has preferred rank.
- Call as
- getValueShortName: returns the same data as getValue, but utilizes the property short name as the label, if available. This allows for piped links to use a shorter label where preferred. If short name is not set on the item, the normal label is used.
Arbitrary Access
As of 16 September 2015, it is now possible to fetch data from other articles by using their QID. The following call:
{{#invoke:Wikidata|getValueFromID|<QID>|<Property>|FETCH_WIKIDATA}}
will do the same as getValue, but takes an extra parameter, which is the QID of the Wikidata item that you want to get the property value from. For example:
{{#invoke:Wikidata|getValueFromID|Q151973|P26|FETCH_WIKIDATA}}
will fetch a list of the linked values for 'spouse' (P26) from 'Richard Burton' (Q151973) from anywhere in the English Wikipedia.
This means that testing environments may be set up in user space, but remember that these calls are classed as expensive, so please use them as sparingly as possible.
Parameters
- For the generalized case (getValue), two unnamed parameters are supplied. The first is the ID of the property that is to be retrieved (e.g. P19 for birthplace or P26 for spouse). The second may be null, "FETCH_WIKIDATA", or any other string, which becomes the returned value.
- For the generalized unlinked case (getRawValue), two unnamed parameters are supplied. The first is the ID of the property that is to be retrieved (e.g. P21 for gender). The second may be null, "FETCH_WIKIDATA", or any other string, which becomes the returned value.
- For the generalized date case (getDateValue), three unnamed parameters are supplied. The first is the ID of the property that is to be retrieved (e.g. P569 for date of birth). The second may be null, "FETCH_WIKIDATA", or any other string, which becomes the returned value. The third is the format that the date should be returned in, either dmy, mdy, my, or y.
Please note that lower-case parameters are no longer supported by the wikibase call: p123, so please check that upper-case, like P123, is used if problems should arise.
Usage
Example: spouse (P26)
{{#invoke:Wikidata|getValue|P26|}}= returns nothing, so suppresses the display of spouse in an infobox{{#invoke:Wikidata|getValue|P26|FETCH_WIKIDATA}}= returns the linked value(s) of property P26 (spouse) stored in wikidata for the corresponding article (e.g. for article w:Bill Clinton, it returns w:Hillary Clinton){{#invoke:Wikidata|getValue|P26|[[w:Hillary Rodham Clinton]]}}= returns w:Hillary Rodham Clinton, allowing an infobox to use a local value rather than the value stored in Wikidata.
Example in Infobox template
Inside an infobox definition, it may be called like this:
| data55 = {{#invoke:Wikidata|getValue|P26|{{{spouse|FETCH_WIKIDATA}}} }}
which causes the infobox to:
- not display spouse if the infobox parameter
|spouseis set to be blank (as"| spouse ="} - display the linked value(s) from Wikidata if the infobox parameter
|spouseis not supplied - display the local infobox parameter
|spouseif it is supplied (e.g."|spouse = Hillary Rodham Clinton")
Optionally, it could be called as:
| data55 = {{#invoke:Wikidata|getValue|P26|{{{spouse|}}} }}
which causes the infobox to:
- not display spouse if the infobox parameter
|spouseis set to be blank (as"| spouse ="} - not display spouse if the infobox parameter
|spouseis not supplied - display the local infobox parameter
|spouseif it is supplied (e.g."|spouse = Hillary Rodham Clinton") - display the linked value(s) from Wikidata if the infobox parameter is locally set to FETCH_WIKIDATA
Example:birth place
This works in just the same way as the calls above:
{{#invoke:Wikidata|getValue|P19|}}= returns nothing, so suppresses the display of birth place in an infobox{{#invoke:Wikidata|getValue|P19|FETCH_WIKIDATA}}= returns the linked value(s) of property P19 (place of birth) stored in wikidata for the corresponding article (e.g. for article w:Bill Clinton, it returns w:Hope, Arkansas){{#invoke:Wikidata|getValue|P19|[[w:Hope, Arkansas|Hope]]}}= returns Hope, allowing an infobox to use a local value rather than the value stored in Wikidata.
Example:gender
We don't want the returned value linked, so use:
- -
{{#invoke:Wikidata|getRawValue|P21|FETCH_WIKIDATA}}
Example:date of birth
If we want the date of birth in dmy format, we use:
- -
{{#invoke:Wikidata|getDateValue|P569|FETCH_WIKIDATA|dmy}}
If we want the date of birth in mdy format, we use:
- -
{{#invoke:Wikidata|getDateValue|P569|FETCH_WIKIDATA|mdy}}
If we want a year of birth, we use:
- -
{{#invoke:Wikidata|getDateValue|P569|FETCH_WIKIDATA|y}}
If we want a year of birth that may be BC, but should read "BCE", we use:
- -
{{#invoke:Wikidata|getDateValue|P569|FETCH_WIKIDATA|y|BCE}}
Example: Linking to Wikidata item
Use the following code to just retrieve the Q-ID:
- -
{{#invoke:Wikidata|pageId}}
Linking to Wikidata used the usual Wiki markup:
- -
[[d:{{#invoke:Wikidata|pageId}}|Name of Link]]
Example: Linking to another wiki page
Use code like this to link to another wiki. English Wikivoyage in the example:
- -
[[voy:{{#invoke:Wikidata|getSiteLink|enwikivoyage}}|Name of Link]]
-- vim: set noexpandtab ft=lua ts=4 sw=4:
require('strict')
local p = {}
local debug = false
------------------------------------------------------------------------------
-- module local variables and functions
local wiki =
{
langcode = mw.language.getContentLanguage().code
}
-- internationalisation
local i18n =
{
["errors"] =
{
["property-not-found"] = "Property not found.",
["entity-not-found"] = "Wikidata entity not found.",
["unknown-claim-type"] = "Unknown claim type.",
["unknown-entity-type"] = "Unknown entity type.",
["qualifier-not-found"] = "Qualifier not found.",
["site-not-found"] = "Wikimedia project not found.",
["unknown-datetime-format"] = "Unknown datetime format.",
["local-article-not-found"] = "Article is not yet available in this wiki."
},
["datetime"] =
{
-- $1 is a placeholder for the actual number
[0] = "$1 billion years", -- precision: billion years
[1] = "$100 million years", -- precision: hundred million years
[2] = "$10 million years", -- precision: ten million years
[3] = "$1 million years", -- precision: million years
[4] = "$100,000 years", -- precision: hundred thousand years
[5] = "$10,000 years", -- precision: ten thousand years
[6] = "$1 millennium", -- precision: millennium
[7] = "$1 century", -- precision: century
[8] = "$1s", -- precision: decade
-- the following use the format of #time parser function
[9] = "Y", -- precision: year,
[10] = "F Y", -- precision: month
[11] = "F j, Y", -- precision: day
[12] = "F j, Y ga", -- precision: hour
[13] = "F j, Y g:ia", -- precision: minute
[14] = "F j, Y g:i:sa", -- precision: second
["beforenow"] = "$1 BCE", -- how to format negative numbers for precisions 0 to 5
["afternow"] = "$1 CE", -- how to format positive numbers for precisions 0 to 5
["bc"] = '$1 "BCE"', -- how print negative years
["ad"] = "$1", -- how print positive years
-- the following are for function getDateValue() and getQualifierDateValue()
["default-format"] = "dmy", -- default value of the #3 (getDateValue) or
-- #4 (getQualifierDateValue) argument
["default-addon"] = "BC", -- default value of the #4 (getDateValue) or
-- #5 (getQualifierDateValue) argument
["prefix-addon"] = false, -- set to true for languages put "BC" in front of the
-- datetime string; or the addon will be suffixed
["addon-sep"] = " ", -- separator between datetime string and addon (or inverse)
["format"] = -- options of the 3rd argument
{
["mdy"] = "F j, Y",
["my"] = "F Y",
["y"] = "Y",
["dmy"] = "j F Y",
["ymd"] = "Y-m-d",
["ym"] = "Y-m"
}
},
["monolingualtext"] = '<span lang="%language">%text</span>',
["warnDump"] = "[[Category:Called function 'Dump' from module Wikidata]]",
["ordinal"] =
{
[1] = "st",
[2] = "nd",
[3] = "rd",
["default"] = "th"
}
}
-- Credit to http://stackoverflow.com/a/1283608/2644759
-- cc-by-sa 3.0
local function tableMerge(t1, t2)
for k,v in pairs(t2) do
if type(v) == "table" then
if type(t1[k] or false) == "table" then
tableMerge(t1[k] or {}, t2[k] or {})
else
t1[k] = v
end
else
t1[k] = v
end
end
return t1
end
local function loadI18n()
local exist, res = pcall(require, "Module:Wikidata/i18n")
if exist and next(res) ~= nil then
tableMerge(i18n, res.i18n)
end
end
-- Function below not needed at the moment
-- loadI18n()
-- this function needs to be internationalised along with the above:
-- takes cardinal numer as a numeric and returns the ordinal as a string
-- we need three exceptions in English for 1st, 2nd, 3rd, 21st, .. 31st, etc.
local function makeOrdinal (cardinal)
local ordsuffix = i18n.ordinal.default
if cardinal % 10 == 1 then
ordsuffix = i18n.ordinal[1]
elseif cardinal % 10 == 2 then
ordsuffix = i18n.ordinal[2]
elseif cardinal % 10 == 3 then
ordsuffix = i18n.ordinal[3]
end
-- In English, 1, 21, 31, etc. use 'st', but 11, 111, etc. use 'th'
-- similarly for 12 and 13, etc.
if (cardinal % 100 == 11) or (cardinal % 100 == 12) or (cardinal % 100 == 13) then
ordsuffix = i18n.ordinal.default
end
return tostring(cardinal) .. ordsuffix
end
local function printError(code)
return '<span class="error">' .. (i18n.errors[code] or code) .. '</span>'
end
local function parseDateValue(timestamp, date_format, date_addon)
local prefix_addon = i18n["datetime"]["prefix-addon"]
local addon_sep = i18n["datetime"]["addon-sep"]
local addon = ""
-- check for negative date
if string.sub(timestamp, 1, 1) == '-' then
timestamp = '+' .. string.sub(timestamp, 2)
addon = date_addon
end
local function d(f)
local year_suffix
local tstr = ""
local lang_obj = mw.language.new(wiki.langcode)
local f_parts = mw.text.split(f, 'Y', true)
for idx, f_part in pairs(f_parts) do
year_suffix = ''
if string.match(f_part, "x[mijkot]$") then
-- for non-Gregorian year
f_part = f_part .. 'Y'
elseif idx < #f_parts then
-- supress leading zeros in year
year_suffix = lang_obj:formatDate('Y', timestamp)
year_suffix = string.gsub(year_suffix, '^0+', '', 1)
end
tstr = tstr .. lang_obj:formatDate(f_part, timestamp) .. year_suffix
end
if addon ~= "" and prefix_addon then
return addon .. addon_sep .. tstr
elseif addon ~= "" then
return tstr .. addon_sep .. addon
else
return tstr
end
end
local _date_format = i18n["datetime"]["format"][date_format]
if _date_format ~= nil then
return d(_date_format)
else
return printError("unknown-datetime-format")
end
end
-- This local function combines the year/month/day/BC/BCE handling of parseDateValue{}
-- with the millennium/century/decade handling of formatDate()
local function parseDateFull(timestamp, precision, date_format, date_addon)
local prefix_addon = i18n["datetime"]["prefix-addon"]
local addon_sep = i18n["datetime"]["addon-sep"]
local addon = ""
-- check for negative date
if string.sub(timestamp, 1, 1) == '-' then
timestamp = '+' .. string.sub(timestamp, 2)
addon = date_addon
end
-- get the next four characters after the + (should be the year now in all cases)
-- ok, so this is dirty, but let's get it working first
local intyear = tonumber(string.sub(timestamp, 2, 5))
if intyear == 0 and precision <= 9 then
return ""
end
-- precision is 10000 years or more
if precision <= 5 then
local factor = 10 ^ ((5 - precision) + 4)
local y2 = math.ceil(math.abs(intyear) / factor)
local relative = mw.ustring.gsub(i18n.datetime[precision], "$1", tostring(y2))
if addon ~= "" then
-- negative date
relative = mw.ustring.gsub(i18n.datetime.beforenow, "$1", relative)
else
relative = mw.ustring.gsub(i18n.datetime.afternow, "$1", relative)
end
return relative
end
-- precision is decades (8), centuries (7) and millennia (6)
local era, card
if precision == 6 then
card = math.floor((intyear - 1) / 1000) + 1
era = mw.ustring.gsub(i18n.datetime[6], "$1", makeOrdinal(card))
end
if precision == 7 then
card = math.floor((intyear - 1) / 100) + 1
era = mw.ustring.gsub(i18n.datetime[7], "$1", makeOrdinal(card))
end
if precision == 8 then
era = mw.ustring.gsub(i18n.datetime[8], "$1", tostring(math.floor(math.abs(intyear) / 10) * 10))
end
if era then
if addon ~= "" then
era = mw.ustring.gsub(mw.ustring.gsub(i18n.datetime.bc, '"', ""), "$1", era)
else
era = mw.ustring.gsub(mw.ustring.gsub(i18n.datetime.ad, '"', ""), "$1", era)
end
return era
end
local _date_format = i18n["datetime"]["format"][date_format]
if _date_format ~= nil then
-- check for precision is year and override supplied date_format
if precision == 9 then
_date_format = i18n["datetime"][9]
end
local year_suffix
local tstr = ""
local lang_obj = mw.language.new(wiki.langcode)
local f_parts = mw.text.split(_date_format, 'Y', true)
for idx, f_part in pairs(f_parts) do
year_suffix = ''
if string.match(f_part, "x[mijkot]$") then
-- for non-Gregorian year
f_part = f_part .. 'Y'
elseif idx < #f_parts then
-- supress leading zeros in year
year_suffix = lang_obj:formatDate('Y', timestamp)
year_suffix = string.gsub(year_suffix, '^0+', '', 1)
end
tstr = tstr .. lang_obj:formatDate(f_part, timestamp) .. year_suffix
end
local fdate
if addon ~= "" and prefix_addon then
fdate = addon .. addon_sep .. tstr
elseif addon ~= "" then
fdate = tstr .. addon_sep .. addon
else
fdate = tstr
end
return fdate
else
return printError("unknown-datetime-format")
end
end
-- the "qualifiers" and "snaks" field have a respective "qualifiers-order" and "snaks-order" field
-- use these as the second parameter and this function instead of the built-in "pairs" function
-- to iterate over all qualifiers and snaks in the intended order.
local function orderedpairs(array, order)
if not order then return pairs(array) end
-- return iterator function
local i = 0
return function()
i = i + 1
if order[i] then
return order[i], array[order[i]]
end
end
end
-- precision: 0 - billion years, 1 - hundred million years, ..., 6 - millennia, 7 - century, 8 - decade, 9 - year, 10 - month, 11 - day, 12 - hour, 13 - minute, 14 - second
local function normalizeDate(date)
date = mw.text.trim(date, "+")
-- extract year
local yearstr = mw.ustring.match(date, "^\-?%d+")
local year = tonumber(yearstr)
-- remove leading zeros of year
return year .. mw.ustring.sub(date, #yearstr + 1), year
end
local function formatDate(date, precision, timezone)
precision = precision or 11
local date, year = normalizeDate(date)
if year == 0 and precision <= 9 then return "" end
-- precision is 10000 years or more
if precision <= 5 then
local factor = 10 ^ ((5 - precision) + 4)
local y2 = math.ceil(math.abs(year) / factor)
local relative = mw.ustring.gsub(i18n.datetime[precision], "$1", tostring(y2))
if year < 0 then
relative = mw.ustring.gsub(i18n.datetime.beforenow, "$1", relative)
else
relative = mw.ustring.gsub(i18n.datetime.afternow, "$1", relative)
end
return relative
end
-- precision is decades, centuries and millennia
local era
if precision == 6 then era = mw.ustring.gsub(i18n.datetime[6], "$1", tostring(math.floor((math.abs(year) - 1) / 1000) + 1)) end
if precision == 7 then era = mw.ustring.gsub(i18n.datetime[7], "$1", tostring(math.floor((math.abs(year) - 1) / 100) + 1)) end
if precision == 8 then era = mw.ustring.gsub(i18n.datetime[8], "$1", tostring(math.floor(math.abs(year) / 10) * 10)) end
if era then
if year < 0 then era = mw.ustring.gsub(mw.ustring.gsub(i18n.datetime.bc, '"', ""), "$1", era)
elseif year > 0 then era = mw.ustring.gsub(mw.ustring.gsub(i18n.datetime.ad, '"', ""), "$1", era) end
return era
end
-- precision is year
if precision == 9 then
return year
end
-- precision is less than years
if precision > 9 then
--[[ the following code replaces the UTC suffix with the given negated timezone to convert the global time to the given local time
timezone = tonumber(timezone)
if timezone and timezone ~= 0 then
timezone = -timezone
timezone = string.format("%.2d%.2d", timezone / 60, timezone % 60)
if timezone[1] ~= '-' then timezone = "+" .. timezone end
date = mw.text.trim(date, "Z") .. " " .. timezone
end
]]--
local formatstr = i18n.datetime[precision]
if year == 0 then formatstr = mw.ustring.gsub(formatstr, i18n.datetime[9], "")
elseif year < 0 then
-- Mediawiki formatDate doesn't support negative years
date = mw.ustring.sub(date, 2)
formatstr = mw.ustring.gsub(formatstr, i18n.datetime[9], mw.ustring.gsub(i18n.datetime.bc, "$1", i18n.datetime[9]))
elseif year > 0 and i18n.datetime.ad ~= "$1" then
formatstr = mw.ustring.gsub(formatstr, i18n.datetime[9], mw.ustring.gsub(i18n.datetime.ad, "$1", i18n.datetime[9]))
end
return mw.language.new(wiki.langcode):formatDate(formatstr, date)
end
end
local function printDatavalueEntity(data, parameter)
-- data fields: entity-type [string], numeric-id [int, Wikidata id]
local id
if data["entity-type"] == "item" then id = "Q" .. data["numeric-id"]
elseif data["entity-type"] == "property" then id = "P" .. data["numeric-id"]
else return printError("unknown-entity-type")
end
if parameter then
if parameter == "link" then
local linkTarget = mw.wikibase.sitelink(id)
local linkName = mw.wikibase.label(id)
if linkTarget then
-- if there is a local Wikipedia article link to it using the label or the article title
return "[[" .. linkTarget .. "|" .. (linkName or linkTarget) .. "]]"
else
-- if there is no local Wikipedia article output the label or link to the Wikidata object to let the user input a proper label
if linkName then return linkName else return "[[:d:" .. id .. "|" .. id .. "]]" end
end
else
return data[parameter]
end
else
return mw.wikibase.label(id) or id
end
end
local function printDatavalueTime(data, parameter)
-- data fields: time [ISO 8601 time], timezone [int in minutes], before [int], after [int], precision [int], calendarmodel [wikidata URI]
-- precision: 0 - billion years, 1 - hundred million years, ..., 6 - millennia, 7 - century, 8 - decade, 9 - year, 10 - month, 11 - day, 12 - hour, 13 - minute, 14 - second
-- calendarmodel: e.g. http://www.wikidata.org/entity/Q1985727 for the proleptic Gregorian calendar or http://www.wikidata.org/wiki/Q11184 for the Julian calendar]
if parameter then
if parameter == "calendarmodel" then data.calendarmodel = mw.ustring.match(data.calendarmodel, "Q%d+") -- extract entity id from the calendar model URI
elseif parameter == "time" then data.time = normalizeDate(data.time) end
return data[parameter]
else
return formatDate(data.time, data.precision, data.timezone)
end
end
local function printDatavalueMonolingualText(data, parameter)
-- data fields: language [string], text [string]
if parameter then
return data[parameter]
else
local result = mw.ustring.gsub(mw.ustring.gsub(i18n.monolingualtext, "%%language", data["language"]), "%%text", data["text"])
return result
end
end
local function findClaims(entity, property)
if not property or not entity or not entity.claims then return end
if mw.ustring.match(property, "^P%d+$") then
-- if the property is given by an id (P..) access the claim list by this id
return entity.claims[property]
else
property = mw.wikibase.resolvePropertyId(property)
if not property then return end
return entity.claims[property]
end
end
local function getSnakValue(snak, parameter)
if snak.snaktype == "value" then
-- call the respective snak parser
if snak.datavalue.type == "string" then return snak.datavalue.value
elseif snak.datavalue.type == "globecoordinate" then return printDatavalueCoordinate(snak.datavalue.value, parameter)
elseif snak.datavalue.type == "quantity" then return printDatavalueQuantity(snak.datavalue.value, parameter)
elseif snak.datavalue.type == "time" then return printDatavalueTime(snak.datavalue.value, parameter)
elseif snak.datavalue.type == "wikibase-entityid" then return printDatavalueEntity(snak.datavalue.value, parameter)
elseif snak.datavalue.type == "monolingualtext" then return printDatavalueMonolingualText(snak.datavalue.value, parameter)
end
end
return mw.wikibase.renderSnak(snak)
end
local function getQualifierSnak(claim, qualifierId)
-- a "snak" is Wikidata terminology for a typed key/value pair
-- a claim consists of a main snak holding the main information of this claim,
-- as well as a list of attribute snaks and a list of references snaks
if qualifierId then
-- search the attribute snak with the given qualifier as key
if claim.qualifiers then
local qualifier = claim.qualifiers[qualifierId]
if qualifier then return qualifier[1] end
end
return nil, printError("qualifier-not-found")
else
-- otherwise return the main snak
return claim.mainsnak
end
end
local function getValueOfClaim(claim, qualifierId, parameter)
local error
local snak
snak, error = getQualifierSnak(claim, qualifierId)
if snak then
return getSnakValue(snak, parameter)
else
return nil, error
end
end
local function getReferences(frame, claim)
local result = ""
-- traverse through all references
for ref in pairs(claim.references or {}) do
local refparts
-- traverse through all parts of the current reference
for snakkey, snakval in orderedpairs(claim.references[ref].snaks or {}, claim.references[ref]["snaks-order"]) do
if refparts then refparts = refparts .. ", " else refparts = "" end
-- output the label of the property of the reference part, e.g. "imported from" for P143
refparts = refparts .. tostring(mw.wikibase.label(snakkey)) .. ": "
-- output all values of this reference part, e.g. "German Wikipedia" and "English Wikipedia" if the referenced claim was imported from both sites
for snakidx = 1, #snakval do
if snakidx > 1 then refparts = refparts .. ", " end
refparts = refparts .. getSnakValue(snakval[snakidx])
end
end
if refparts then result = result .. frame:extensionTag("ref", refparts) end
end
return result
end
------------------------------------------------------------------------------
-- module global functions
if debug then
function p.inspectI18n(frame)
local val = i18n
for _, key in pairs(frame.args) do
key = mw.text.trim(key)
val = val[key]
end
return val
end
end
function p.descriptionIn(frame)
local langcode = frame.args[1]
local id = frame.args[2] -- "id" must be nil, as access to other Wikidata objects is disabled in Mediawiki configuration
-- return description of a Wikidata entity in the given language or the default language of this Wikipedia site
return mw.wikibase.getEntityObject(id).descriptions[langcode or wiki.langcode].value
end
function p.labelIn(frame)
local langcode = frame.args[1]
local id = frame.args[2] -- "id" must be nil, as access to other Wikidata objects is disabled in Mediawiki configuration
-- return label of a Wikidata entity in the given language or the default language of this Wikipedia site
return mw.wikibase.getEntityObject(id).labels[langcode or wiki.langcode].value
end
-- This is used to get a value, or a comma separated list of them if multiple values exist
p.getValue = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
local claims
if entity and entity.claims then
claims = entity.claims[propertyID]
end
if claims then
-- if wiki-linked value output as link if possible
if (claims[1] and claims[1].mainsnak.snaktype == "value" and claims[1].mainsnak.datavalue.type == "wikibase-entityid") then
local out = {}
for k, v in pairs(claims) do
local sitelink = mw.wikibase.sitelink("Q" .. v.mainsnak.datavalue.value["numeric-id"])
local label = mw.wikibase.label("Q" .. v.mainsnak.datavalue.value["numeric-id"])
if label == nil then label = "Q" .. v.mainsnak.datavalue.value["numeric-id"] end
if sitelink then
out[#out + 1] = "[[" .. sitelink .. "|" .. label .. "]]"
else
out[#out + 1] = "[[:d:Q" .. v.mainsnak.datavalue.value["numeric-id"] .. "|" .. label .. "]]<abbr title='" .. i18n["errors"]["local-article-not-found"] .. "'>[*]</abbr>"
end
end
return table.concat(out, ", ")
else
-- just return best values
return entity:formatPropertyValues(propertyID).value
end
else
return ""
end
else
return input_parm
end
end
-- Same as above, but uses the short name property for label if available.
p.getValueShortName = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
local claims
if entity and entity.claims then
claims = entity.claims[propertyID]
end
if claims then
-- if wiki-linked value output as link if possible
if (claims[1] and claims[1].mainsnak.snaktype == "value" and claims[1].mainsnak.datavalue.type == "wikibase-entityid") then
local out = {}
for k, v in pairs(claims) do
local sitelink = mw.wikibase.sitelink("Q" .. v.mainsnak.datavalue.value["numeric-id"])
local label
local claimEntity = mw.wikibase.getEntity("Q" .. v.mainsnak.datavalue.value["numeric-id"])
if claimEntity ~= nil then
if claimEntity.claims.P1813 then
for k2, v2 in pairs(claimEntity.claims.P1813) do
if v2.mainsnak.datavalue.value.language == "en" then
label = v2.mainsnak.datavalue.value.text
end
end
end
end
if label == nil or label == "" then label = mw.wikibase.label("Q" .. v.mainsnak.datavalue.value["numeric-id"]) end
if label == nil then label = "Q" .. v.mainsnak.datavalue.value["numeric-id"] end
if sitelink then
out[#out + 1] = "[[" .. sitelink .. "|" .. label .. "]]"
else
out[#out + 1] = "[[:d:Q" .. v.mainsnak.datavalue.value["numeric-id"] .. "|" .. label .. "]]<abbr title='" .. i18n["errors"]["local-article-not-found"] .. "'>[*]</abbr>"
end
end
return table.concat(out, ", ")
else
-- just return best values
return entity:formatPropertyValues(propertyID).value
end
else
return ""
end
else
return input_parm
end
end
-- This is used to get a value, or a comma separated list of them if multiple values exist
-- from an arbitrary entry by using its QID.
-- Use : {{#invoke:Wikidata|getValueFromID|<ID>|<Property>|FETCH_WIKIDATA}}
-- E.g.: {{#invoke:Wikidata|getValueFromID|Q151973|P26|FETCH_WIKIDATA}} - to fetch value of 'spouse' (P26) from 'Richard Burton' (Q151973)
-- Please use sparingly - this is an *expensive call*.
p.getValueFromID = function(frame)
local itemID = mw.text.trim(frame.args[1] or "")
local propertyID = mw.text.trim(frame.args[2] or "")
local input_parm = mw.text.trim(frame.args[3] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntity(itemID)
local claims = entity.claims[propertyID]
if claims then
-- if wiki-linked value output as link if possible
if (claims[1] and claims[1].mainsnak.snaktype == "value" and claims[1].mainsnak.datavalue.type == "wikibase-entityid") then
local out = {}
for k, v in pairs(claims) do
local sitelink = mw.wikibase.sitelink("Q" .. v.mainsnak.datavalue.value["numeric-id"])
local label = mw.wikibase.label("Q" .. v.mainsnak.datavalue.value["numeric-id"])
if label == nil then label = "Q" .. v.mainsnak.datavalue.value["numeric-id"] end
if sitelink then
out[#out + 1] = "[[" .. sitelink .. "|" .. label .. "]]"
else
out[#out + 1] = "[[:d:Q" .. v.mainsnak.datavalue.value["numeric-id"] .. "|" .. label .. "]]<abbr title='" .. i18n["errors"]["local-article-not-found"] .. "'>[*]</abbr>"
end
end
return table.concat(out, ", ")
else
return entity:formatPropertyValues(propertyID).value
end
else
return ""
end
else
return input_parm
end
end
p.getQualifierValue = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local qualifierID = mw.text.trim(frame.args[2] or "")
local input_parm = mw.text.trim(frame.args[3] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
if entity.claims[propertyID] ~= nil then
local out = {}
for k, v in pairs(entity.claims[propertyID]) do
for k2, v2 in pairs(v.qualifiers[qualifierID]) do
if v2.snaktype == 'value' then
if (mw.wikibase.sitelink("Q" .. v2.datavalue.value["numeric-id"])) then
out[#out + 1] = "[[" .. mw.wikibase.sitelink("Q" .. v2.datavalue.value["numeric-id"]) .. "]]"
else
out[#out + 1] = "[[:d:Q" .. v2.datavalue.value["numeric-id"] .. "|" .. mw.wikibase.label("Q" .. v2.datavalue.value["numeric-id"]) .. "]]<abbr title='" .. i18n["errors"]["local-article-not-found"] .. "'>[*]</abbr>"
end
end
end
end
return table.concat(out, ", ")
else
return ""
end
else
return input_parm
end
end
-- This is used to get a value like 'male' (for property p21) which won't be linked and numbers without the thousand separators
p.getRawValue = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
local claims
if entity and entity.claims then claims = entity.claims[propertyID] end
if claims then
local result = entity:formatPropertyValues(propertyID, mw.wikibase.entity.claimRanks).value
-- if number type: remove thousand separators, bounds and units
if (claims[1] and claims[1].mainsnak.snaktype == "value" and claims[1].mainsnak.datavalue.type == "quantity") then
result = mw.ustring.gsub(result, "(%d),(%d)", "%1%2")
result = mw.ustring.gsub(result, "(%d)±.*", "%1")
end
return result
else
return ""
end
else
return input_parm
end
end
-- This is used to get the unit name for the numeric value returned by getRawValue
p.getUnits = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
local claims
if entity and entity.claims then claims = entity.claims[propertyID] end
if claims then
local result = entity:formatPropertyValues(propertyID, mw.wikibase.entity.claimRanks).value
if (claims[1] and claims[1].mainsnak.snaktype == "value" and claims[1].mainsnak.datavalue.type == "quantity") then
result = mw.ustring.sub(result, mw.ustring.find(result, " ")+1, -1)
end
return result
else
return ""
end
else
return input_parm
end
end
-- This is used to get the unit's QID to use with the numeric value returned by getRawValue
p.getUnitID = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
local claims
if entity and entity.claims then claims = entity.claims[propertyID] end
if claims then
local result
if (claims[1] and claims[1].mainsnak.snaktype == "value" and claims[1].mainsnak.datavalue.type == "quantity") then
-- get the url for the unit entry on Wikidata:
result = claims[1].mainsnak.datavalue.value.unit
-- and just reurn the last bit from "Q" to the end (which is the QID):
result = mw.ustring.sub(result, mw.ustring.find(result, "Q"), -1)
end
return result
else
return ""
end
else
return input_parm
end
end
p.getRawQualifierValue = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local qualifierID = mw.text.trim(frame.args[2] or "")
local input_parm = mw.text.trim(frame.args[3] or "")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
if entity.claims[propertyID] ~= nil then
local out = {}
for k, v in pairs(entity.claims[propertyID]) do
for k2, v2 in pairs(v.qualifiers[qualifierID]) do
if v2.snaktype == 'value' then
if v2.datavalue.value["numeric-id"] then
out[#out + 1] = mw.wikibase.label("Q" .. v2.datavalue.value["numeric-id"])
else
out[#out + 1] = v2.datavalue.value
end
end
end
end
local ret = table.concat(out, ", ")
return string.upper(string.sub(ret, 1, 1)) .. string.sub(ret, 2)
else
return ""
end
else
return input_parm
end
end
-- This is used to get a date value for date_of_birth (P569), etc. which won't be linked
-- Dates and times are stored in ISO 8601 format (sort of).
-- At present the local formatDate(date, precision, timezone) function doesn't handle timezone
-- So I'll just supply "Z" in the call to formatDate below:
p.getDateValue = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
local date_format = mw.text.trim(frame.args[3] or i18n["datetime"]["default-format"])
local date_addon = mw.text.trim(frame.args[4] or i18n["datetime"]["default-addon"])
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
if entity.claims[propertyID] ~= nil then
local out = {}
for k, v in pairs(entity.claims[propertyID]) do
if v.mainsnak.datavalue.type == 'time' then
local timestamp = v.mainsnak.datavalue.value.time
local dateprecision = v.mainsnak.datavalue.value.precision
out[#out + 1] = parseDateFull(timestamp, dateprecision, date_format, date_addon)
end
end
return table.concat(out, ", ")
else
return ""
end
else
return input_parm
end
end
p.getQualifierDateValue = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local qualifierID = mw.text.trim(frame.args[2] or "")
local input_parm = mw.text.trim(frame.args[3] or "")
local date_format = mw.text.trim(frame.args[4] or i18n["datetime"]["default-format"])
local date_addon = mw.text.trim(frame.args[5] or i18n["datetime"]["default-addon"])
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
if entity.claims[propertyID] ~= nil then
local out = {}
for k, v in pairs(entity.claims[propertyID]) do
for k2, v2 in pairs(v.qualifiers[qualifierID]) do
if v2.snaktype == 'value' then
local timestamp = v2.datavalue.value.time
out[#out + 1] = parseDateValue(timestamp, date_format, date_addon)
end
end
end
return table.concat(out, ", ")
else
return ""
end
else
return input_parm
end
end
-- This is used to fetch all of the images with a particular property, e.g. image (P18), Gene Atlas Image (P692), etc.
-- Parameters are | propertyID | value / FETCH_WIKIDATA / nil | separator (default=space) | size (default=frameless)
-- It will return a standard wiki-markup [[File:Filename | size]] for each image with a selectable size and separator (which may be html)
-- e.g. {{#invoke:Wikidata|getImages|P18|FETCH_WIKIDATA}}
-- e.g. {{#invoke:Wikidata|getImages|P18|FETCH_WIKIDATA|<br>|250px}}
-- If a property is chosen that is not of type "commonsMedia", it will return empty text.
p.getImages = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
local sep = mw.text.trim(frame.args[3] or " ")
local imgsize = mw.text.trim(frame.args[4] or "frameless")
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject()
local claims
if entity and entity.claims then
claims = entity.claims[propertyID]
end
if claims then
if (claims[1] and claims[1].mainsnak.datatype == "commonsMedia") then
local out = {}
for k, v in pairs(claims) do
local filename = v.mainsnak.datavalue.value
out[#out + 1] = "[[File:" .. filename .. "|" .. imgsize .. "]]"
end
return table.concat(out, sep)
else
return ""
end
else
return ""
end
else
return input_parm
end
end
-- This is used to get the TA98 (Terminologia Anatomica first edition 1998) values like 'A01.1.00.005' (property P1323)
-- which are then linked to http://www.unifr.ch/ifaa/Public/EntryPage/TA98%20Tree/Entity%20TA98%20EN/01.1.00.005%20Entity%20TA98%20EN.htm
-- uses the newer mw.wikibase calls instead of directly using the snaks
-- formatPropertyValues returns a table with the P1323 values concatenated with ", " so we have to split them out into a table in order to construct the return string
p.getTAValue = function(frame)
local ent = mw.wikibase.getEntityObject()
local props = ent:formatPropertyValues('P1323')
local out = {}
local t = {}
for k, v in pairs(props) do
if k == 'value' then
t = mw.text.split( v, ", ")
for k2, v2 in pairs(t) do
out[#out + 1] = "[http://www.unifr.ch/ifaa/Public/EntryPage/TA98%20Tree/Entity%20TA98%20EN/" .. string.sub(v2, 2) .. "%20Entity%20TA98%20EN.htm " .. v2 .. "]"
end
end
end
local ret = table.concat(out, "<br> ")
if #ret == 0 then
ret = "Invalid TA"
end
return ret
end
--[[
This is used to return an image legend from Wikidata
image is property P18
image legend is property P2096
Call as {{#invoke:Wikidata |getImageLegend | <PARAMETER> | lang=<ISO-639code> |id=<QID>}}
Returns PARAMETER, unless it is equal to "FETCH_WIKIDATA", from Item QID (expensive call)
If QID is omitted or blank, the current article is used (not an expensive call)
If lang is omitted, it uses the local wiki language, otherwise it uses the provided ISO-639 language code
ISO-639: https://docs.oracle.com/cd/E13214_01/wli/docs92/xref/xqisocodes.html#wp1252447
Ranks are: 'preferred' > 'normal'
This returns the label from the first image with 'preferred' rank
Or the label from the first image with 'normal' rank if preferred returns nothing
Ranks: https://www.mediawiki.org/wiki/Extension:Wikibase_Client/Lua
]]
p.getImageLegend = function(frame)
-- look for named parameter id; if it's blank make it nil
local id = frame.args.id
if id and (#id == 0) then
id = nil
end
-- look for named parameter lang
-- it should contain a two-character ISO-639 language code
-- if it's blank fetch the language of the local wiki
local lang = frame.args.lang
if (not lang) or (#lang < 2) then
lang = mw.language.getContentLanguage().code
end
-- first unnamed parameter is the local parameter, if supplied
local input_parm = mw.text.trim(frame.args[1] or "")
if input_parm == "FETCH_WIKIDATA" then
local ent = mw.wikibase.getEntityObject(id)
local imgs
if ent and ent.claims then
imgs = ent.claims.P18
end
local imglbl
if imgs then
-- look for an image with 'preferred' rank
for k1, v1 in pairs(imgs) do
if v1.rank == "preferred" and v1.qualifiers and v1.qualifiers.P2096 then
local imglbls = v1.qualifiers.P2096
for k2, v2 in pairs(imglbls) do
if v2.datavalue.value.language == lang then
imglbl = v2.datavalue.value.text
break
end
end
end
end
-- if we don't find one, look for an image with 'normal' rank
if (not imglbl) then
for k1, v1 in pairs(imgs) do
if v1.rank == "normal" and v1.qualifiers and v1.qualifiers.P2096 then
local imglbls = v1.qualifiers.P2096
for k2, v2 in pairs(imglbls) do
if v2.datavalue.value.language == lang then
imglbl = v2.datavalue.value.text
break
end
end
end
end
end
end
return imglbl
else
return input_parm
end
end
-- This is used to get the QIDs of all of the values of a property, as a comma separated list if multiple values exist
-- Usage: {{#invoke:Wikidata |getPropertyIDs |<PropertyID> |FETCH_WIKIDATA}}
-- Usage: {{#invoke:Wikidata |getPropertyIDs |<PropertyID> |<InputParameter> |qid=<QID>}}
p.getPropertyIDs = function(frame)
local propertyID = mw.text.trim(frame.args[1] or "")
local input_parm = mw.text.trim(frame.args[2] or "")
-- can take a named parameter |qid which is the Wikidata ID for the article. This will not normally be used.
local qid = frame.args.qid
if qid and (#qid == 0) then qid = nil end
if input_parm == "FETCH_WIKIDATA" then
local entity = mw.wikibase.getEntityObject(qid)
local propclaims
if entity and entity.claims then
propclaims = entity.claims[propertyID]
end
if propclaims then
-- if wiki-linked value collect the QID in a table
if (propclaims[1] and propclaims[1].mainsnak.snaktype == "value" and propclaims[1].mainsnak.datavalue.type == "wikibase-entityid") then
local out = {}
for k, v in pairs(propclaims) do
out[#out + 1] = "Q" .. v.mainsnak.datavalue.value["numeric-id"]
end
return table.concat(out, ", ")
else
-- not a wikibase-entityid, so return empty
return ""
end
else
-- no claim, so return empty
return ""
end
else
return input_parm
end
end
-- returns the page id (Q...) of the current page or nothing of the page is not connected to Wikidata
function p.pageId(frame)
local entity = mw.wikibase.getEntityObject()
if not entity then return nil else return entity.id end
end
function p.claim(frame)
local property = frame.args[1] or ""
local id = frame.args["id"] -- "id" must be nil, as access to other Wikidata objects is disabled in Mediawiki configuration
local qualifierId = frame.args["qualifier"]
local parameter = frame.args["parameter"]
local list = frame.args["list"]
local references = frame.args["references"]
local showerrors = frame.args["showerrors"]
local default = frame.args["default"]
if default then showerrors = nil end
-- get wikidata entity
local entity = mw.wikibase.getEntityObject(id)
if not entity then
if showerrors then return printError("entity-not-found") else return default end
end
-- fetch the first claim of satisfying the given property
local claims = findClaims(entity, property)
if not claims or not claims[1] then
if showerrors then return printError("property-not-found") else return default end
end
-- get initial sort indices
local sortindices = {}
for idx in pairs(claims) do
sortindices[#sortindices + 1] = idx
end
-- sort by claim rank
local comparator = function(a, b)
local rankmap = { deprecated = 2, normal = 1, preferred = 0 }
local ranka = rankmap[claims[a].rank or "normal"] .. string.format("%08d", a)
local rankb = rankmap[claims[b].rank or "normal"] .. string.format("%08d", b)
return ranka < rankb
end
table.sort(sortindices, comparator)
local result
local error
if list then
local value
-- iterate over all elements and return their value (if existing)
result = {}
for idx in pairs(claims) do
local claim = claims[sortindices[idx]]
value, error = getValueOfClaim(claim, qualifierId, parameter)
if not value and showerrors then value = error end
if value and references then value = value .. getReferences(frame, claim) end
result[#result + 1] = value
end
result = table.concat(result, list)
else
-- return first element
local claim = claims[sortindices[1]]
result, error = getValueOfClaim(claim, qualifierId, parameter)
if result and references then result = result .. getReferences(frame, claim) end
end
if result then return result else
if showerrors then return error else return default end
end
end
-- look into entity object
function p.ViewSomething(frame)
local f = (frame.args[1] or frame.args.id) and frame or frame:getParent()
local id = f.args.id
if id and (#id == 0) then
id = nil
end
local data = mw.wikibase.getEntityObject(id)
if not data then
return nil
end
local i = 1
while true do
local index = f.args[i]
if not index then
if type(data) == "table" then
return mw.text.jsonEncode(data, mw.text.JSON_PRESERVE_KEYS + mw.text.JSON_PRETTY)
else
return tostring(data)
end
end
data = data[index] or data[tonumber(index)]
if not data then
return
end
i = i + 1
end
end
-- getting sitelink of a given wiki
function p.getSiteLink(frame)
local qid = frame.args.qid
if qid == "" then qid = nil end
local f = mw.text.trim( frame.args[1] or "")
local entity = mw.wikibase.getEntity(qid)
if not entity then
return
end
local link = entity:getSitelink( f )
if not link then
return
end
return link
end
function p.Dump(frame)
local f = (frame.args[1] or frame.args.id) and frame or frame:getParent()
local data = mw.wikibase.getEntityObject(f.args.id)
if not data then
return i18n.warnDump
end
local i = 1
while true do
local index = f.args[i]
if not index then
return "<pre>"..mw.dumpObject(data).."</pre>".. i18n.warnDump
end
data = data[index] or data[tonumber(index)]
if not data then
return i18n.warnDump
end
i = i + 1
end
end
return p