Module:WikidataOld

Τεκμηρίωση module[δημιουργία] [ανανέωση]

Μπορείτε να συμβάλλετε στη δημιουργία σελίδας τεκμηρίωσης για αυτό το Scribunto module.
Οι συντάκτες μπορούν να πειραματίζονται στο πρόχειρο (δημιουργία | αντίγραφο) και στις δοκιμαστικές σελίδες (δημιουργία) του module.
Παρακαλούμε να προσθέτετε τις κατηγορίες στην υποσελίδα τεκμηρίωσης. Υποσελίδες αυτού του module.

--script that retrieves basic data stored in Wikidata, for the datamodel, see https://www.mediawiki.org/wiki/Extension:Wikibase_Client/Lua

local p = {}

local linguistic = require('Module:Linguistic')
--local formatDate = require('Module:Complex date') only loaded when needed to save memory in large pages like Wikidata:List of properties/all
local fb = require('Module:Fallback')
local i18nmessages = mw.loadData('Module:i18n/wikidata')

-- Wiki-specific parameters
local defaultlang = mw.getCurrentFrame():preprocess("{{int:lang}}")
local defaultlink = 'wikidata'

local function i18n(str, lang)
	local message = i18nmessages[str]
	if type(message) == 'string' then
		return message
	end
	return fb._langSwitch(message, lang or defaultlang)
end

local function formatError( key, text )
	return error(i18n(key) .. (text or ''))
end

local function addTrackingCat(prop, cat)
	if not prop and not cat then
		return error("no property provided")
	end
	if not cat then
		cat = i18nmessages.trackingcat .. '/' .. string.upper(prop)
	end
	return '[[Category:' .. cat .. ']]'
end

local function removeBlanks(args)
	for i, j in pairs(args) do -- does not work ??
		if (j == '') or (j == '-') then args[i] = nil end
	end
	return args
end

local function formatTheUnknown() -- voir si on peut accorder/adapter l'usage de "inconnu"
	return i18n('somevalue')
end

local function isSpecial(snak)
	return snak.snaktype ~= 'value'
end

local function sameValue(snak, target)
	return not isSpecial(snak) and p.getRawvalue(snak) == target
end

local function showLang(statement, str) -- TODO (not yet in proper format)
	--adds a lang indication at the start of the string, based on data in statement
	local mainsnak = statement.mainsnak
	if isSpecial(mainsnak) then
		return str
	end

	local langlist = {}
	if mainsnak.datavalue.type == 'monolingualtext' then
		langlist = {mainsnak.datavalue.value.language}
	elseif statement.qualifiers and statement.qualifiers.P407 then
		local convertlangcode = mw.loadData('Module:Dictionary/lang codes')
		for i, j in pairs( statement.qualifiers.P407 ) do
			if not isSpecial(j) then
				local val = convertlangcode[j.datavalue.value['numeric-id']]
				table.insert(langlist, val)
			end
		end
	end
	if #langlist == 0 then
		return str
	else
		return '('.. table.concat(langlist) .. ')' .. str
	end
end

function p.getEntity( val )
	if type(val) == 'table' then
		return val
	end
	return mw.wikibase.getEntityObject(val)
end

-- DATE FUNCTIONS
local function splitTimestamp(timestamp, calendar)
	local pattern = "(%W)(%d+)%-(%d+)%-(%d+)"
	local era, year, month, day = timestamp:match(pattern)

	if calendar == 'julian' then
	--todo  year, month, day = formatdate.gregorianToJulian( era .. year, month, day )
	end

	return {day = day, month = month, year = year, era = era, timestamp = timestamp, type = 'dateobject'}
end

local function rangeObject(begin, ending)
	local timestamp
	if begin then
		timestamp = begin.timestamp
	elseif ending then
		timestamp = ending.timestamp
	end
	return {begin = begin, ending = ending, timestamp = timestamp, type = 'rangeobject'}
end

local function dateObject(orig, params) -- transforme un snak en un nouvel objet utilisable par Module:Date complexe
	if not params then
		params = {}
	end

	local newobj = splitTimestamp(orig.time, orig.calendar) -- initalise l'object en mettant la valeur des dates

	newobj.precision = params.precision or orig.precision
	newobj.type = 'dateobject'
	return newobj
end

local function formatDatepoint(obj, params) -- TO IMPROVE
	if not obj then
		return nil
	end
	local era = obj.era == '-' and 'bc' or ''
	local formatDate = require('Module:Complex date')
	local lang = params.lang or defaultlang
	local precision = math.min(obj.precision, params.precision or 15) -- if we don't want to show the value to its full detail
	if precision >= 11 then
		return formatDate.complex_date{args={date1 = obj.year .. '-' .. obj.month .. '-' .. obj.day, lang= lang, era1 = era}}
	elseif precision == 10 then
		return formatDate.complex_date{args={date1 = obj.year .. '-' .. obj.month, lang= lang, era1 = era}}
	elseif precision == 9 then
		return formatDate.complex_date{args={date1 = tostring(obj.year), lang= lang, era1 = era}}
	elseif precision == 8 then
		return formatDate.complex_date{args={date1 = string.sub(tostring(obj.year), 1, 3) .. '0', lang = lang, precision = 'decade', era1 = era}}
	elseif precision == 7 then
		return formatDate.complex_date{args={date1 = tostring(obj.year / 100), lang = lang, precision = 'century', era1 = era}}
	end
	return nil
end

local function formatDaterange(obj, params) --TODO
	local begin = formatDatepoint(obj.begin, params) or ''
	local ending = formatDatepoint(obj.ending, params) or ''
	return begin .. '-' .. ending
end

local function objectToText(obj, params)
	if obj.type == 'dateobject' then
		return formatDatepoint(obj, params)
	elseif obj.type == 'rangeobject' then
		return formatDaterange(obj, params)
	end
	return nil
end

local function tableToText(values, params) -- takes a list of already formatted values and make them a text
	if not values then
		return nil
	end
	return linguistic.conj(values, params.lang or defaultlang, params.conjtype)--linguistic.conj( values, params.lang, params.conjtype )
end

function p.getDate(obj)
--[[
returns an object containing a timestamp for easy sorting, and other data
	possible types of object:
		dateobject
			{timestamp = string, year = number, month = number, day = number, calendar = string}
		rangeobject
			{timestamp = string, begin = dateobject, ending = dateobject}
]]--
	if not obj then
		return nil
	end
	if type(obj) == 'string' then
		obj = p.getEntity(obj)
	end

	-- if obj is a statement with date, get it
	if obj.mainsnak and not isSpecial(obj.mainsnak) and obj.mainsnak.datatype == 'time' then
		return dateObject(obj.mainsnak.datavalue.value)
	end

	-- else preload relevant data
	local qualifs = obj.qualifiers -- when obj is a statement, look in qualifiers
	local claims = obj.claims -- when obj is an item, look in claims

	local pointprop = {'P585', 'P571'} -- dates corresponding to a punctual fact
	local beginprop = {'P580', 'P569'} -- start date, birth date == start of a date range
	local endingprop = {'P582', 'P570'}

	local function getval(prop)
		local val
		if claims and claims[prop] and not isSpecial(claims[prop][1].mainsnak) then
			val = claims[prop][1].mainsnak.datavalue.value
		elseif qualifs and qualifs[prop] and not isSpecial(qualifs[prop][1]) then
			val = qualifs[prop][1].datavalue.value
		end
		if val then
			return dateObject(val)
		end
		return nil
	end

	for i, prop in pairs(pointprop) do
		local val = getval(prop)
		if val then return val end
	end
	--if no date has not been found, look for startdate or enddate
	local begin, ending
	for i, prop in pairs(beginprop) do
		begin = getval(prop)
		if begin then
			break
		end
	end
	for i, prop in pairs(endingprop) do
		ending = getval(prop)
		if ending then
			break
		end
	end
	if begin or ending then
		return rangeObject(begin, ending)
	end
	return nil
end

function p.getFormattedDate(statement, params)
	local datetable = p.getDate(statement)
	if not datetable then
		return nil
	end
	return objectToText(datetable, params)
end

local function hasTargetValue(claim, target)
	if target == nil then
		return true
	end
	return sameValue(claim.mainsnak, target)
end

local function hasRank(claim, target)
	if target == 'valid' then
		return hasRank(claim, 'preferred') or hasRank(claim, 'normal')
	else
		return claim.rank == target
	end
end

local function bestRanked(claims)
	if not claims then
		return nil
	end
	local preferred, normal = {}, {}
	for i, j in pairs(claims) do
		if j.rank == 'preferred' then
			table.insert(preferred, j)
		elseif j.rank == 'normal' then
			table.insert(normal, j)
		end
	end
	if #preferred > 0 then
		return preferred
	else
		return normal
	end
end

local function hasQualifier(claim, qualifier, qualifiervalues)
	if not qualifier then -- si aucun qualificatif est demandé, ça passe
		return true
	end

	qualifier = string.upper(qualifier)
	if not claim.qualifiers or not claim.qualifiers[qualifier] then
		return false
	end

	if type(qualifiervalues) == 'string' then
		qualifiervalues = mw.text.split(qualifiervalues, ',')
	end

	if (not qualifiervalues) or (qualifiervalues == {}) then
		return true -- si aucune valeur spécifique n'est exigée
	end

	for i, j in pairs(claim.qualifiers[qualifier]) do
		for k, l in pairs(qualifiervalues) do
			if p.getRawvalue(j) == l then
				return true
			end
		end
	end
	return false
 end

local function hasSource(statement, source, sourceproperty)
	if not statement.references then
		return false
	end
	sourceproperty = string.upper(sourceproperty or 'P248')
	local sourcevalue = string.upper(source or '')
	for i, ref in pairs(statement.references) do
		for prop, content in pairs(ref.snaks) do
			if prop == sourceproperty then
				if sourcevalue == '' then
					return true
				else
					for j, k in pairs(content) do
						if p.getRawvalue(k) == source then
							return true
						end
					end
				end
			end
		end
	end
	return false
end

local function hasDate(statement)
	if not statement.qualifiers then
		return false
	end
	local dateprops = {'P580', 'P585', 'P582'}
	for i, prop in pairs(dateprops) do
		if statement.qualifiers[prop] then
			return true
		end
	end
	return false
end

local function isInLanguage(snak, lang) -- ne fonctionne que pour les monolingualtext / étendre aux autres types en utilisant les qualifiers ?
	return not isSpecial(snak) and snak.datavalue.type == 'monolingualtext' and snak.datavalue.value.language == lang
end

local function numval(claims, numval) -- retourn les numval premières valeurs de la table claims
	local numval = tonumber(numval) or 0 -- raise a error if numval is not a positive integer ?
	if #claims <= numval then
		return claims
	end
	local newclaims = {}
	while #newclaims < numval do
		table.insert(newclaims, claims[#newclaims + 1])
	end
	return newclaims
end

function p.comparedate(a, b) -- returns true if a is earlier than B or if a has a date but not b
	if a and b then
		return a.timestamp < b.timestamp
	elseif a then
		return true
	end
	return false
end

function p.chronosort(objs, inverted)
	table.sort(objs, function(a, b)
		local timeA = p.getDate(a)
		local timeB = p.getDate(b)
		if inverted then
			return p.comparedate(timeB, timeA)
		else
			return p.comparedate(timeA, timeB)
		end
	end)

	return objs
end

function p.sortclaims(claims, sorttype)
	if type(sorttype) == 'function' then
		table.sort(claims, sorttype)
	elseif sorttype == 'chronological' then
		return p.chronosort(claims)
	elseif sorttype == 'inverted' then
		return p.chronosort(claims, true)
	end
	return claims
end

function p.getRawvalue(snak)
	return p.getDatavalue(snak, {displayformat = 'raw'})
end

function p.showentity(entity, lang)
	if not entity then
		return nil
	end
	if type(entity) == 'string' then
		entity = p.getEntity(entity)
	end
	if not entity or not entity.type then
		return formatError('entity-not-found')
	end

	local label = p._getLabel(entity, lang)
	local id = entity.id
	local link = id
	if entity.type == 'property' then
		link = 'Property:' .. link
	end

	return '[[' .. link .. '|' .. label .. ']] <small>(' .. id .. ')</small>'
end

local function wikipediaLink(entity, lang)
	local link = entity:getSitelink(lang .. 'wiki')
	if link then
		return ':' .. lang .. ':' .. link
	end
	return nil
end

local function getLink(entity, typelink, lang)
	if not typelink or typelink == '-' then
		return nil
	end
	if not lang then
		lang = defaultlang
	end

	if typelink == 'wikidata' then
		if entity.type == 'property' then
			return 'd:P:' .. entity.id
		else
			return 'd:' .. entity.id
		end

	elseif typelink == 'wikipedia' then
		return wikipediaLink(entity, lang)

	elseif typelink == 'anywikipedia' then
		local fallbacklist = fb.fblist(lang)
		for i, lg in pairs(fallbacklist) do
			link = wikipediaLink(entity, lg)
			if link then return link end
		end
	end
	return nil
end

local function formattedLabel(label, entity, args)
	if not args then args = {} end
	local link = getLink(entity, args.link, args.lang)
	if not link then
		link = getLink(entity, defaultlink, args.lang)
	end
	if not link then
		return label
	else
		return '[[' .. link .. '|' .. label .. ']]'
	end
end

function p.getDatavalue(snak, params)
	if isSpecial(snak) then
		return nil
	end

	if not params then
		params = {}
	end

	local displayformat = params.displayformat
	local datatype = snak.datavalue.type
	local value = snak.datavalue.value

	if datatype == 'wikibase-entityid' then
		if type(displayformat) == 'function' then
			return displayformat(snak, params)
		end
		local prefix = 'Q'
		if snak.datavalue.value["entity-type"] == 'property' then
			prefix = 'P'
		end
		local id = prefix .. tostring(value['numeric-id'])
		if displayformat == 'raw' then
			return id
		elseif displayformat == 'wikidatastyle' then
			return p.showentity(id, params.lang)
		else
			return p.formatEntity(id, params)
		end

	elseif datatype == 'string' then
		local showntext = params.showntext
		if displayformat == 'weblink' then
			if showntext then
				return '[' .. value .. ' ' .. showntext .. ']'
			else
				return value
			end
		end
		if snak.datatype == 'math' and displayformat ~= 'raw' then
			value = mw.getCurrentFrame():extensionTag('math', value)
		end
		if params.urlpattern then
			value = '[' .. mw.ustring.gsub(mw.ustring.gsub(params.urlpattern, '$1', value), ' ', '%%20') .. ' ' .. (showntext or value) .. ']'
		end
		return value

	elseif datatype == 'time' then -- format example: +00000001809-02-12T00:00:00Z
		if displayformat == 'raw' then
			return value.time
		else
			return objectToText(dateObject(value), params)
		end

	elseif datatype == 'globecoordinate' then
		-- retourne une table avec clés latitude, longitude, précision et globe à formater par un autre module (à changer ?)
		if displayformat == 'latitude' then
			return value.latitude
		elseif displayformat == 'longitude' then
			return value.longitude
		elseif displayformat == 'qualifier' then
			local coord = require 'Module:Coordinates'
			value.globe = require('Module:Wikidata/Globes')[value.globe]
			value.precision = nil
			return coord._coord(value)
		else
			value.globe = require('Module:Wikidata/Globes')[value.globe] -- transforme l'ID du globe en nom anglais utilisable par geohack
			return value -- note : les coordonnées Wikidata peuvent être utilisée depuis Module:Coordinates. Faut-il aussi autoriser à appeler Module:Coordiantes ici ?
		end

	elseif datatype == 'quantity' then -- todo : gérer les paramètre précision
		if displayformat == 'raw' then
			return tonumber(value.amount)
		else
			local formatNum = require 'Module:Formatnum'
			local number = formatNum.formatNum(value.amount)
			local unit = mw.ustring.match(value.unit, '(Q%d+)')
			if unit then
				local symbol = p._formatStatements{
					entity = unit, property = 'P558', qualifier = 'P282', qualifiervalues = {'Q8229'}
				}
				if symbol and symbol ~= '' then
					number = number .. '&nbsp;' .. formattedLabel(symbol, p.getEntity(unit), {link='wikipedia'})
				else
					number = number .. '&nbsp;' .. p.formatEntity(unit, params)
				end
			end
			return number
		end
	elseif datatype == 'monolingualtext' then
		return '<span lang="' .. value.language .. '">' .. value.text .. '</span>'
	else
		return formatError( 'unknown-datavalue-type', datatype )
	end
end

local function getMultipleClaims(args)
	local newargs = args
	local claims = {}
	for i, j in pairs(args.property) do
		newargs.property = j
		local newclaims = p.getClaims(args)
		if newclaims then
			for k, l in pairs(newclaims) do
				table.insert(claims, l)
			end
		end
	end
	return claims
end

function p.getClaims( args ) -- returns a table of the claims matching some conditions given in args
	args = removeBlanks(args)
	if not args.property then
		return formatError( 'property-param-not-provided' )
	end
	if type(args.property) == 'table' then
		return getMultipleClaims(args)
	end
	--Get entity
	if args.item then -- synonyms
		args.entity = args.item
	end
	local entity = args.entity
	if type(entity) ~= 'table' then
		entity = p.getEntity(entity)
	end
	local property = string.upper(args.property)
	if not entity or not entity.claims or not entity.claims[property] then
		return nil
	end

	if entity.claims and
	   entity.claims.P21 and
	   entity.claims.P21[1] and
	   entity.claims.P21[1].mainsnak and
	   entity.claims.P21[1].mainsnak.datatype == 'wikibase-item' and
	   (entity.claims.P21[1].mainsnak.datavalue.value["numeric-id"] == 6581072 or
	   	entity.claims.P21[1].mainsnak.datavalue.value["numeric-id"] == 1052281) then
	  args.female = true
	end

	if not args.rank then
		args.rank = 'best'
	end
	local claims = {}
-- ~= '' lorsque le paramètre est écrit mais laissé blanc dans une fonction frame
	for i, statement in pairs(entity.claims[property]) do
		if
			(
			not args.excludespecial
			or
			not (isSpecial(statement.mainsnak))
		)
		and
		(
			not args.targetvalue
			or
			hasTargetValue(statement, args.targetvalue)
		)
		and
		(
			not args.qualifier
			or
			hasQualifier(statement, args.qualifier, args.qualifiervalues or args.qualifiervalue)
		)
		and
		(
			not args.withsource or args.withsource == '-'
			or
			hasSource(statement, args.withsource, args.sourceproperty)
		)
		and
		(
			not args.isinlanguage
			or
			isInLanguage(statement.mainsnak, args.isinlanguage)
		)
		and
		(
			args.rank == 'best' -- rank == best est traité à a fin
			or
			hasRank(statement, args.rank)
		)
		then
			table.insert(claims, statement)
		end
	end
	if #claims == 0 then
		return nil
	end
	if args.rank == 'best' then
		claims = bestRanked(claims)
	end
	if args.sorttype then
		claims = p.sortclaims(claims, args.sorttype)
	end

	if args.numval then
		return numval(claims, args.numval)
	end
	return claims
end

function p.formatClaimList(claims, args)
	if not claims then
		return nil
	end
	for i, j in pairs(claims) do
		claims[i] = p.formatStatement(j, args)
	end
	return claims
end

function p.stringTable(args) -- like getClaims, but get a list of string rather than a list of snaks, for easier manipulation
	local claims = p.getClaims(args)
	return p.formatClaimList(claims, args)
end

local function getQualifiers(statement, qualifs, params)
	if not statement.qualifiers then
		return nil
	end
	local vals = {}
	for i, j in pairs(qualifs) do
		j = string.upper(j)
		if statement.qualifiers[j] then
			local inserted = false
			if statement.qualifiers[j][1].datatype == 'monolingualtext' then
				local in_preferred_lang
				for _, language in pairs(fb.fblist(params.lang or defaultlang)) do
					for _, snak in pairs(statement.qualifiers[j]) do
						if isInLanguage(snak, language) then
							in_preferred_lang = snak
							break
						end
					end
					if in_preferred_lang then
						break
					end
				end
				if in_preferred_lang then
					table.insert(vals, in_preferred_lang)
					inserted = true
				end
			end
			if not inserted then
				for _, snak in pairs(statement.qualifiers[j]) do
					table.insert(vals, snak)
				end
			end
		end
	end
	if #vals == 0 then
		return nil
	end
	return vals
end

function p.getFormattedQualifiers(statement, qualifs, params)
	if not params then params = {} end
	local qualiftable = getQualifiers(statement, qualifs, params)
	if not qualiftable then
		return nil
	end
	for i, j in pairs(qualiftable) do
		local params = params
		if j.datatype == 'globe-coordinate' then
			params.displayformat = 'qualifier'
		end
		qualiftable[i] = p.formatSnak(j, params)
	end
	return linguistic.conj(qualiftable, params.lang or defaultlang, params.qualifconjtype or '')
end

function p.formatStatement( statement, args )
	if not statement.type or statement.type ~= 'statement' then
		return formatError( 'unknown-claim-type', statement.type )
	end
	if not args then args = {} end
	local lang = args.lang or defaultlang
	local str = p.formatSnak( statement.mainsnak, args )
	if tostring( args.showlang ) == 'true' then
		str = showLang(statement, str)
	end

	local qualifs = args.showqualifiers
	if qualifs then
		if type(qualifs) == 'string' then
			qualifs = mw.text.split(qualifs, ',')
		end
		local foundvalues = p.getFormattedQualifiers(statement, qualifs, args)
		if foundvalues then
			if args.delimiter then
				str = str .. args.delimiter .. foundvalues
			else
				str = str .. linguistic.inparentheses(foundvalues, lang)
			end
		end
	end

	if args.showdate then -- when "showdate and p.chronosort are both set, date retrieval is performed twice
		local timedata = p.getDate(statement)
		if timedata then
			local formatteddate = objectToText(timedata, args)
			formatteddate = linguistic.inparentheses(formatteddate, lang)
			str = str .. '<small>' .. formatteddate ..'</small>'
		end
	end

	if args.showsource and statement.references then
		local cite = require 'Module:Wikidata/citeold'
		str = str .. cite.formatReferences(statement.references, {})
	end
	return str
end

function p.formatSnak(snak, params)
	--local params = params or {} pour faciliter l'appel depuis d'autres modules
	if snak.snaktype == 'value' then
		return p.getDatavalue(snak, params)
	elseif snak.snaktype == 'somevalue' then
		return formatTheUnknown()
	elseif snak.snaktype == 'novalue' then
		return i18n('novalue') --todo
	else
		return formatError( 'unknown-snak-type', snak.snaktype )
	end
end

local function defaultLabel(entity, lang, displayformat) -- label when no label is available
	if entity and displayformat == 'id' then
		return entity.id
	end
	return i18n('no-label', lang)
end

function p._getLabel(entity, lang, default)
	if not entity then
		return nil
	end
	if type(entity) ~= 'table' then
		entity = p.getEntity(entity)
	end
	if entity and entity.labels then
		for i, lg in pairs(fb.fblist(lang or defaultlang)) do
			if entity.labels[lg] then
				return entity.labels[lg].value
			end
		end
	end
	return defaultLabel(entity, lang, default)
end

function p._getDescription(entity, lang)
	if not entity then
		return i18n('no description')
	end
	if type(entity) ~= 'table' then
		entity = p.getEntity(entity)
	end
	local descriptions = entity.descriptions
	if not descriptions then
		return i18n('no description')
	end
	if descriptions[lang] then
		return descriptions[lang].value
	end
	local langlist = fb.fblist(lang or defaultlang) -- list of fallback languages if no label in the desired language
	for i, lg in pairs(langlist) do
		if descriptions[lg] then
			return descriptions[lg].value
		end
	end
	return i18n('no description')
end

function p.getmainid(claim)
	if claim and not isSpecial(claim.mainsnak) then
		return 'Q' .. claim.mainsnak.datavalue.value['numeric-id']
	end
	return nil
end

function p.formatEntity( entity, args )
	if not entity then
		return nil
	end
	if not args then args = {} end
	if type(entity) == 'string' then
		entity = p.getEntity(entity)
	end
	
	local femalelabel = nil

	if args.female and entity.claims and entity.claims.P2521 then
		for _, statement in pairs(entity.claims.P2521) do
        	if(isInLanguage(statement.mainsnak, args.lang or defaultlang)) then
				femalelabel = statement.mainsnak.datavalue.value.text
				break
			end
		end
	end

	local label
	if (femalelabel) then 
		label = femalelabel
	else
		label = p._getLabel(entity, args.lang)
	end
	
	if not label then
		label = entity.id
	end
	return formattedLabel(label, entity, args)
end

function p.getLabel(frame) -- simple for simple templates like {{Q|}}}
	local args = frame.args
	local entity = args.entity
	local lang = args.lang
	if lang == '' then
		lang = defaultlang
	end

	if string.sub(entity, 1, 10) == 'Property:P' then
		entity = string.sub(entity, 10)
	elseif (string.sub(entity, 1, 1) ~= 'P' and string.sub(entity, 1, 1) ~= 'Q') or (not tonumber(string.sub(entity, 2))) then
		return i18n('invalid-id')
	end

	if not args.link or args.link == '' then -- by default: no link
		args.link = '-'
	end
	if args.link == '-' then
		return p._getLabel(entity, lang) or i18n('invalid-id')
	else
		return p.formatEntity(entity, args)
	end
end

function p._formatStatements( args )--Format statements and concat them cleanly
	if args.value == '-' then
		return nil
	end
	--If a value is already set, use it
	if args.value and args.value ~= '' then
		return args.value
	end
	local valuetable = p.stringTable(args)
	return tableToText(valuetable, args)
end

function p.showQualifier( args )
	local qualifs = args.qualifiers or args.qualifier
	if type(qualifs) == 'string' then
		qualifs = mw.text.split(qualifs, ',')
	end
	if not qualifs then
		return formatError( 'property-param-not-provided' )
	end
	local claims = p.getClaims(args)
	if not claims then
		return nil
	end
	local str = ''
	for i, j in pairs(claims) do
		local new = p.getFormattedQualifiers(j, qualifs, args) or ''
		str = str .. new
	end
	return str
end

function p._formatAndCat(args)
	local val = p._formatStatements(args)
	if val then
		return val .. addTrackingCat(args.property)
	end
	return nil
end

function p.getTheDate(args)
	local claims = p.getClaims(args)
	if not claims then
		return nil
	end
	local formattedvalues = {}
	for i, j in pairs(claims) do
		table.insert(formattedvalues, p.getFormattedDate(j))
	end
	local val = linguistic.conj(formattedvalues)
	if val and args.addcat == true then
		return val .. addTrackingCat(args.property)
	else
		return val
	end
end
---FONCTIONS depuis le FRAME
function p.getaDate(frame)
	return p.getTheDate(frame.args)
end

function p.getQualifier(frame)
	return p.showQualifier(frame.args)
end

function p.getDescription(frame) -- simple for simple templates like {{Q|}}}
	local entity = frame.args.entity
	local lang = frame.args.lang

	return p._getDescription(entity, lang) or i18n('invalid-id')
end

function p.formatStatements( args )
	return p._formatStatements( args )
end

function p.formatStatementsE(frame)
	local args = {}
	if frame == mw.getCurrentFrame() then
		args = frame:getParent().args -- paramètres du modèle appelant (est-ce vraiment une bonne idée ?)
		for k, v in pairs(frame.args) do
			args[k] = v
		end
	else
		args = frame
	end
	return p._formatStatements( args )
end

function p.formatAndCat(frame)
	local args = {}
	if frame == mw.getCurrentFrame() then
		args = frame:getParent().args -- paramètres du modèle appelant (est-ce vraiment une bonne idée ?)
		for k, v in pairs(frame.args) do
			args[k] = v
		end
	else
		args = frame
	end
	return p._formatAndCat( args )
end

function p.getEntityFromId(id)
	return p.getEntity(id)
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

-- 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

return p