Module:WikidataIB/lite
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-- Version: 2021-01-03
-- Module to implement getValue from Module:WikidataIB attempting to minimise resource use
local p = {}
local cdate -- initialise as nil and only load _complex_date function if needed
-- [[Module:Complex date]] is loaded lazily and has the following dependencies:
-- Module:I18n/complex date, Module:ISOdate, Module:DateI18n (alternative for Module:Date),
-- Module:Formatnum, Module:I18n/date, Module:Yesno, Module:Linguistic, Module:Calendar
-- The following, taken from https://www.mediawiki.org/wiki/Wikibase/DataModel#Dates_and_times,
-- is needed to use Module:Complex date which seemingly requires date precision as a string.
-- It would work better if only the authors of the mediawiki page could spell 'millennium'.
local dp = {
[6] = "millennium",
[7] = "century",
[8] = "decade",
[9] = "year",
[10] = "month",
[11] = "day",
}
local i18n =
{
["errors"] =
{
["property-not-found"] = "Property not found.",
["No property supplied"] = "No property supplied",
["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.",
["labels-not-found"] = "No labels found.",
["descriptions-not-found"] = "No descriptions found.",
["aliases-not-found"] = "No aliases found.",
["unknown-datetime-format"] = "Unknown datetime format.",
["local-article-not-found"] = "Article is available on Wikidata, but not on Wikipedia",
["dab-page"] = " (dab)",
},
["months"] =
{
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
},
["century"] = "century",
["BC"] = "BC",
["BCE"] = "BCE",
["ordinal"] =
{
[1] = "st",
[2] = "nd",
[3] = "rd",
["default"] = "th"
},
["filespace"] = "File",
["Unknown"] = "Unknown",
["NaN"] = "Not a number",
-- set the following to the name of a tracking category,
-- e.g. "[[Category:Articles with missing Wikidata information]]", or "" to disable:
["missinginfocat"] = "[[Category:Articles with missing Wikidata information]]",
["editonwikidata"] = "Edit this on Wikidata",
["latestdatequalifier"] = function (date) return "before " .. date end,
-- some languages, e.g. Bosnian use a period as a suffix after each number in a date
["datenumbersuffix"] = "",
["list separator"] = ", ",
["multipliers"] = {
[0] = "",
[3] = " thousand",
[6] = " million",
[9] = " billion",
[12] = " trillion",
}
}
-- This allows an internationisation module to override the above table
if 'en' ~= mw.getContentLanguage():getCode() then
require("Module:i18n").loadI18n("Module:WikidataIB/i18n", i18n)
end
-- This piece of html implements a collapsible container. Check the classes exist on your wiki.
local collapsediv = '<div class="mw-collapsible mw-collapsed" style="width:100%; overflow:auto;" data-expandtext="{{int:show}}" data-collapsetext="{{int:hide}}">'
-- Some items should not be linked.
-- Each wiki can create a list of those in Module:WikidataIB/nolinks
-- It should return a table called itemsindex, containing true for each item not to be linked
local donotlink = {}
local nolinks_exists, nolinks = pcall(mw.loadData, "Module:WikidataIB/nolinks")
if nolinks_exists then
donotlink = nolinks.itemsindex
end
-------------------------------------------------------------------------------
-- Private functions
-------------------------------------------------------------------------------
--
-------------------------------------------------------------------------------
-- findLang takes a "langcode" parameter if supplied and valid
-- otherwise it tries to create it from the user's set language ({{int:lang}})
-- failing that it uses the wiki's content language.
-- It returns a language object
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local findLang = function(langcode)
local langobj
langcode = mw.text.trim(langcode or "")
if mw.language.isKnownLanguageTag(langcode) then
langobj = mw.language.new( langcode )
else
langcode = mw.getCurrentFrame():preprocess( '{{int:lang}}' )
if mw.language.isKnownLanguageTag(langcode) then
langobj = mw.language.new( langcode )
else
langobj = mw.language.getContentLanguage()
end
end
return langobj
end
-------------------------------------------------------------------------------
-- roundto takes a number (x)
-- and returns it rounded to (sf) significant figures
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local roundto = function(x, sf)
if x == 0 then return 0 end
local s = 1
if x < 0 then
x = -x
s = -1
end
if sf < 1 then sf = 1 end
local p = 10 ^ (math.floor(math.log10(x)) - sf + 1)
x = math.floor(x / p + 0.5) * p * s
-- if it's integral, cast to an integer:
if x == math.floor(x) then x = math.floor(x) end
return x
end
-------------------------------------------------------------------------------
-- decimalToDMS takes a decimal degrees (x) with precision (p)
-- and returns degrees/minutes/seconds according to the precision
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local decimalToDMS = function(x, p)
-- if p is not supplied, use a precision around 0.1 seconds
if not tonumber(p) then p = 1e-4 end
local d = math.floor(x)
local ms = (x - d) * 60
if p > 0.5 then -- precision is > 1/2 a degree
if ms > 30 then d = d + 1 end
ms = 0
end
local m = math.floor(ms)
local s = (ms - m) * 60
if p > 0.008 then -- precision is > 1/2 a minute
if s > 30 then m = m +1 end
s = 0
elseif p > 0.00014 then -- precision is > 1/2 a second
s = math.floor(s + 0.5)
elseif p > 0.000014 then -- precision is > 1/20 second
s = math.floor(10 * s + 0.5) / 10
elseif p > 0.0000014 then -- precision is > 1/200 second
s = math.floor(100 * s + 0.5) / 100
else -- cap it at 3 dec places for now
s = math.floor(1000 * s + 0.5) / 1000
end
return d, m, s
end
-------------------------------------------------------------------------------
-- decimalPrecision takes a decimal (x) with precision (p)
-- and returns x rounded approximately to the given precision
-- precision should be between 1 and 1e-6, preferably a power of 10.
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local decimalPrecision = function(x, p)
local s = 1
if x < 0 then
x = -x
s = -1
end
-- if p is not supplied, pick an arbitrary precision
if not tonumber(p) then p = 1e-4
elseif p > 1 then p = 1
elseif p < 1e-6 then p = 1e-6
else p = 10 ^ math.floor(math.log10(p))
end
x = math.floor(x / p + 0.5) * p * s
-- if it's integral, cast to an integer:
if x == math.floor(x) then x = math.floor(x) end
-- if it's less than 1e-4, it will be in exponent form, so return a string with 6dp
-- 9e-5 becomes 0.000090
if math.abs(x) < 1e-4 then x = string.format("%f", x) end
return x
end
-------------------------------------------------------------------------------
-- dateFormat is the handler for properties that are of type "time"
-- It takes timestamp, precision (6 to 11 per mediawiki), dateformat (y/dmy/mdy), BC format (BC/BCE),
-- a plaindate switch (yes/no/adj) to en/disable "sourcing circumstances"/use adjectival form,
-- any qualifiers for the property, the language, and any adjective to use like 'before'.
-- It passes the date through the "complex date" function
-- and returns a string with the internatonalised date formatted according to preferences.
-------------------------------------------------------------------------------
-- Dependencies: findLang(); cdate(); dp[]
-------------------------------------------------------------------------------
local dateFormat = function(timestamp, dprec, df, bcf, pd, qualifiers, lang, adj, model)
-- output formatting according to preferences (y/dmy/mdy/ymd)
df = (df or ""):lower()
-- if ymd is required, return the part of the timestamp in YYYY-MM-DD form
-- but apply Year zero#Astronomers fix: 1 BC = 0000; 2 BC = -0001; etc.
if df == "ymd" then
if timestamp:sub(1,1) == "+" then
return timestamp:sub(2,11)
else
local yr = tonumber(timestamp:sub(2,5)) - 1
yr = ("000" .. yr):sub(-4)
if yr ~= "0000" then yr = "-" .. yr end
return yr .. timestamp:sub(6,11)
end
end
-- A year can be stored like this: "+1872-00-00T00:00:00Z",
-- which is processed here as if it were the day before "+1872-01-01T00:00:00Z",
-- and that's the last day of 1871, so the year is wrong.
-- So fix the month 0, day 0 timestamp to become 1 January instead:
timestamp = timestamp:gsub("%-00%-00T", "-01-01T")
-- just in case date precision is missing
dprec = dprec or 11
-- override more precise dates if required dateformat is year alone:
if df == "y" and dprec > 9 then dprec = 9 end
-- complex date only deals with precisions from 6 to 11, so clip range
dprec = dprec>11 and 11 or dprec
dprec = dprec<6 and 6 or dprec
-- BC format is "BC" or "BCE"
bcf = (bcf or ""):upper()
-- plaindate only needs the first letter (y/n/a)
pd = (pd or ""):sub(1,1):lower()
if pd == "" or pd == "n" or pd == "f" or pd == "0" then pd = false end
-- in case language isn't passed
lang = lang or findLang().code
-- set adj as empty if nil
adj = adj or ""
-- extract the day, month, year from the timestamp
local bc = timestamp:sub(1, 1)=="-" and "BC" or ""
local year, month, day = timestamp:match("[+-](%d*)-(%d*)-(%d*)T")
local iso = tonumber(year) -- if year is missing, let it throw an error
-- this will adjust the date format to be compatible with cdate
-- possible formats are Y, YY, YYY0, YYYY, YYYY-MM, YYYY-MM-DD
if dprec == 6 then iso = math.floor( (iso - 1) / 1000 ) + 1 end
if dprec == 7 then iso = math.floor( (iso - 1) / 100 ) + 1 end
if dprec == 8 then iso = math.floor( iso / 10 ) .. "0" end
if dprec == 10 then iso = year .. "-" .. month end
if dprec == 11 then iso = year .. "-" .. month .. "-" .. day end
-- add "circa" (Q5727902) from "sourcing circumstances" (P1480)
local sc = not pd and qualifiers and qualifiers.P1480
if sc then
for k1, v1 in pairs(sc) do
if v1.datavalue and v1.datavalue.value.id == "Q5727902" then
adj = "circa"
break
end
end
end
-- deal with Julian dates:
-- no point in saying that dates before 1582 are Julian - they are by default
-- doesn't make sense for dates less precise than year
-- we can suppress it by setting |plaindate, e.g. for use in constructing categories.
local calendarmodel = ""
if tonumber(year) > 1582
and dprec > 8
and not pd
and model == "http://www.wikidata.org/entity/Q1985786" then
calendarmodel = "julian"
end
if not cdate then
cdate = require("Module:Complex date")._complex_date
end
local fdate = cdate(calendarmodel, adj, tostring(iso), dp[dprec], bc, "", "", "", "", lang, 1)
-- this may have QuickStatements info appended to it in a div, so remove that
fdate = fdate:gsub(' <div style="display: none;">[^<]*</div>', '')
-- it may also be returned wrapped in a microformat, so remove that
fdate = fdate:gsub("<[^>]*>", "")
-- there may be leading zeros that we should remove
fdate = fdate:gsub("^0*", "")
-- if a plain date is required, then remove any links (like BC linked)
if pd then
fdate = fdate:gsub("%[%[.*|", ""):gsub("]]", "")
end
-- if 'circa', use the abbreviated form *** internationalise later ***
fdate = fdate:gsub('circa ', '<abbr title="circa">c.</abbr> ')
-- deal with BC/BCE
if bcf == "BCE" then
fdate = fdate:gsub('BC', 'BCE')
end
-- deal with mdy format
if df == "mdy" then
fdate = fdate:gsub("(%d+) (%w+) (%d+)", "%2 %1, %3")
end
-- deal with adjectival form *** internationalise later ***
if pd == "a" then
fdate = fdate:gsub(' century', '-century')
end
return fdate
end
-------------------------------------------------------------------------------
-- parseParam takes a (string) parameter, e.g. from the list of frame arguments,
-- and makes "false", "no", and "0" into the (boolean) false
-- it makes the empty string and nil into the (boolean) value passed as default
-- allowing the parameter to be true or false by default.
-- It returns a boolean.
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local parseParam = function(param, default)
if type(param) == "boolean" then param = tostring(param) end
if param and param ~= "" then
param = param:lower()
if (param == "false") or (param:sub(1,1) == "n") or (param == "0") then
return false
else
return true
end
else
return default
end
end
-------------------------------------------------------------------------------
-- The label in a Wikidata item is subject to vulnerabilities
-- that an attacker might try to exploit.
-- It needs to be 'sanitised' by removing any wikitext before use.
-- If it doesn't exist, return the id for the item
-- a second (boolean) value is also returned, value is true when the label exists
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local labelOrId = function(id, lang)
if lang == "default" then lang = findLang().code end
local label
if lang then
label = mw.wikibase.getLabelByLang(id, lang)
else
label = mw.wikibase.getLabel(id)
end
if label then
return mw.text.nowiki(label), true
else
return id, false
end
end
-------------------------------------------------------------------------------
-- linkedItem takes an entity-id and returns a string, linked if possible.
-- This is the handler for "wikibase-item". Preferences:
-- 1. Display linked disambiguated sitelink if it exists
-- 2. Display linked label if it is a redirect
-- 3. TBA: Display an inter-language link for the label if it exists other than in default language
-- 4. Display unlinked label if it exists
-- 5. Display entity-id for now to indicate a label could be provided
-- dtxt is text to be used instead of label, or nil.
-- lang is the current language code.
-- uselbl is boolean switch to force display of the label instead of the sitelink (default: false)
-- linkredir is boolean switch to allow linking to a redirect (default: false)
-- formatvalue is boolean switch to allow formatting as italics or quoted (default: false)
-------------------------------------------------------------------------------
-- Dependencies: labelOrId(); donotlink[]
-------------------------------------------------------------------------------
local linkedItem = function(id, args)
local lprefix = args.lprefix or "" -- toughen against nil values passed
local lpostfix = args.lpostfix or ""
local prefix = args.prefix or ""
local postfix = args.postfix or ""
local dtxt = args.dtxt
local lang = args.lang or "en" -- fallback to default if missing
local uselbl = args.uselabel or args.uselbl
uselbl = parseParam(uselbl, false)
local linkredir = args.linkredir
linkredir = parseParam(linkredir, false)
local disp
local sitelink = mw.wikibase.getSitelink(id)
local label, islabel
if dtxt then
label, islabel = dtxt, true
else
label, islabel = labelOrId(id)
end
if mw.site.siteName ~= "Wikimedia Commons" then
if sitelink then
if not dtxt then
-- if sitelink and label are the same except for case, no need to process further
if sitelink:lower() ~= label:lower() then
-- strip any namespace or dab from the sitelink
local pos = sitelink:find(":") or 0
local slink = sitelink
if pos > 0 then
local pfx = sitelink:sub(1,pos-1)
if mw.site.namespaces[pfx] then -- that prefix is a valid namespace, so remove it
slink = sitelink:sub(pos+1)
end
end
-- remove stuff after commas or inside parentheses - ie. dabs
slink = slink:gsub("%s%(.+%)$", ""):gsub(",.+$", "")
-- if uselbl is false, use sitelink instead of label
if not uselbl then
-- use slink as display, preserving label case - find("^%u") is true for 1st char uppercase
if label:find("^%u") then
label = slink:gsub("^(%l)", string.upper)
else
label = slink:gsub("^(%u)", string.lower)
end
end
end
end
if donotlink[label] then
disp = prefix .. label .. postfix
else
disp = "[[" .. lprefix .. sitelink .. lpostfix .. "|" .. prefix .. label .. postfix .. "]]"
end
elseif islabel then
-- no sitelink, label exists, so check if a redirect with that title exists, if linkredir is true
-- display plain label by default
disp = prefix .. label .. postfix
if linkredir then
local artitle = mw.title.new(label, 0) -- only nil if label has invalid chars
if not donotlink[label] and artitle and artitle.redirectTarget then
-- there's a redirect with the same title as the label, so let's link to that
disp = "[[".. lprefix .. label .. lpostfix .. "|" .. prefix .. label .. postfix .. "]]"
end
end -- test if article title exists as redirect on current Wiki
else
-- no sitelink and no label, so return whatever was returned from labelOrId for now
-- add tracking category [[Category:Articles with missing Wikidata information]]
-- for enwiki, just return the tracking category
if mw.wikibase.getGlobalSiteId() == "enwiki" then
disp = i18n.missinginfocat
else
disp = prefix .. label .. postfix .. i18n.missinginfocat
end
end
else
local ccat = mw.wikibase.getBestStatements(id, "P373")[1]
if ccat and ccat.mainsnak.datavalue then
ccat = ccat.mainsnak.datavalue.value
disp = "[[" .. lprefix .. "Category:" .. ccat .. lpostfix .. "|" .. prefix .. label .. postfix .. "]]"
elseif sitelink then
-- this asumes that if a sitelink exists, then a label also exists
disp = "[[" .. lprefix .. sitelink .. lpostfix .. "|" .. prefix .. label .. postfix .. "]]"
else
-- no sitelink and no Commons cat, so return label from labelOrId for now
disp = prefix .. label .. postfix
end
end
return disp
end
-------------------------------------------------------------------------------
-- sourced takes a table representing a statement that may or may not have references
-- it looks for a reference sourced to something not containing the word "wikipedia"
-- it returns a boolean = true if it finds a sourced reference.
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local sourced = function(claim)
if claim.references then
for kr, vr in pairs(claim.references) do
local ref = mw.wikibase.renderSnaks(vr.snaks)
if not ref:find("Wiki") then
return true
end
end
end
end
-------------------------------------------------------------------------------
-- setRanks takes a flag (parameter passed) that requests the values to return
-- "b[est]" returns preferred if available, otherwise normal
-- "p[referred]" returns preferred
-- "n[ormal]" returns normal
-- "d[eprecated]" returns deprecated
-- multiple values are allowed, e.g. "preferred normal" (which is the default)
-- "best" will override the other flags, and set p and n
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local setRanks = function(rank)
rank = (rank or ""):lower()
-- if nothing passed, return preferred and normal
-- if rank == "" then rank = "p n" end
local ranks = {}
for w in string.gmatch(rank, "%a+") do
w = w:sub(1,1)
if w == "b" or w == "p" or w == "n" or w == "d" then
ranks[w] = true
end
end
-- check if "best" is requested or no ranks requested; and if so, set preferred and normal
if ranks.b or not next(ranks) then
ranks.p = true
ranks.n = true
end
return ranks
end
-------------------------------------------------------------------------------
-- parseInput processes the Q-id , the blacklist and the whitelist
-- if an input parameter is supplied, it returns that and ends the call.
-- it returns (1) either the qid or nil indicating whether or not the call should continue
-- and (2) a table containing all of the statements for the propertyID and relevant Qid
-- if "best" ranks are requested, it returns those instead of all non-deprecated ranks
-------------------------------------------------------------------------------
-- Dependencies: none
-------------------------------------------------------------------------------
local parseInput = function(frame, input_parm, property_id)
-- There may be a local parameter supplied, if it's blank, set it to nil
input_parm = mw.text.trim(input_parm or "")
if input_parm == "" then input_parm = nil end
-- return nil if Wikidata is not available
if not mw.wikibase then return false, input_parm end
local args = frame.args
-- can take a named parameter |qid which is the Wikidata ID for the article.
-- if it's not supplied, use the id for the current page
local qid = args.qid or ""
if qid == "" then qid = mw.wikibase.getEntityIdForCurrentPage() end
-- if there's no Wikidata item for the current page return nil
if not qid then return false, input_parm end
-- The blacklist is passed in named parameter |suppressfields
local blacklist = args.suppressfields or args.spf or ""
-- The whitelist is passed in named parameter |fetchwikidata
local whitelist = args.fetchwikidata or args.fwd or ""
if whitelist == "" then whitelist = "NONE" end
-- The name of the field that this function is called from is passed in named parameter |name
local fieldname = args.name or ""
if blacklist ~= "" then
-- The name is compulsory when blacklist is used, so return nil if it is not supplied
if fieldname == "" then return false, nil end
-- If this field is on the blacklist, then return nil
if blacklist:find(fieldname) then return false, nil end
end
-- If we got this far then we're not on the blacklist
-- The blacklist overrides any locally supplied parameter as well
-- If a non-blank input parameter was supplied return it
if input_parm then return false, input_parm end
-- We can filter out non-valid properties
if property_id:sub(1,1):upper() ~="P" or property_id == "P0" then return false, nil end
-- Otherwise see if this field is on the whitelist:
-- needs a bit more logic because find will return its second value = 0 if fieldname is ""
-- but nil if fieldname not found on whitelist
local _, found = whitelist:find(fieldname)
found = ((found or 0) > 0)
if whitelist ~= 'ALL' and (whitelist:upper() == "NONE" or not found) then
return false, nil
end
-- See what's on Wikidata (the call always returns a table, but it may be empty):
local props = {}
if args.reqranks.b then
props = mw.wikibase.getBestStatements(qid, property_id)
else
props = mw.wikibase.getAllStatements(qid, property_id)
end
if props[1] then
return qid, props
end
-- no property on Wikidata
return false, nil
end
-------------------------------------------------------------------------------
-- createicon assembles the "Edit at Wikidata" pen icon.
-- It returns a wikitext string inside a span class="penicon"
-- if entityID is nil or empty, the ID associated with current page is used
-- langcode and propertyID may be nil or empty
-------------------------------------------------------------------------------
-- Dependencies: i18n[];
-------------------------------------------------------------------------------
local createicon = function(langcode, entityID, propertyID)
langcode = langcode or ""
if not entityID or entityID == "" then entityID= mw.wikibase.getEntityIdForCurrentPage() end
propertyID = propertyID or ""
local icon = " <span class='penicon autoconfirmed-show'>[["
-- " <span data-bridge-edit-flow='overwrite' class='penicon'>[[" -> enable Wikidata Bridge
.. i18n["filespace"]
.. ":OOjs UI icon edit-ltr-progressive.svg |frameless |text-top |10px |alt="
.. i18n["editonwikidata"]
.. "|link=https://www.wikidata.org/wiki/" .. entityID
if langcode ~= "" then icon = icon .. "?uselang=" .. langcode end
if propertyID ~= "" then icon = icon .. "#" .. propertyID end
icon = icon .. "|" .. i18n["editonwikidata"] .. "]]</span>"
return icon
end
-------------------------------------------------------------------------------
-- assembleoutput takes the sequence table containing the property values
-- and formats it according to switches given. It returns a string or nil.
-- It uses the entityID (and optionally propertyID) to create a link in the pen icon.
-------------------------------------------------------------------------------
-- Dependencies: parseParam();
-------------------------------------------------------------------------------
local assembleoutput = function(out, args, entityID, propertyID)
-- sorted is a boolean passed to enable sorting of the values returned
-- if nothing or an empty string is passed set it false
-- if "false" or "no" or "0" is passed set it false
local sorted = parseParam(args.sorted, false)
-- noicon is a boolean passed to suppress the trailing "edit at Wikidata" icon
-- for use when the value is processed further by the infobox
-- if nothing or an empty string is passed set it false
-- if "false" or "no" or "0" is passed set it false
local noic = parseParam(args.noicon, false)
-- list is the name of a template that a list of multiple values is passed through
-- examples include "hlist" and "ubl"
-- setting it to "prose" produces something like "1, 2, 3, and 4"
local list = args.list or ""
-- sep is a string that is used to separate multiple returned values
-- if nothing or an empty string is passed set it to the default
-- any double-quotes " are stripped out, so that spaces may be passed
-- e.g. |sep=" - "
local sepdefault = i18n["list separator"]
local separator = args.sep or ""
separator = string.gsub(separator, '"', '')
if separator == "" then
separator = sepdefault
end
-- collapse is a number that determines the maximum number of returned values
-- before the output is collapsed.
-- Zero or not a number result in no collapsing (default becomes 0).
local collapse = tonumber(args.collapse) or 0
-- replacetext (rt) is a string that is returned instead of any non-empty Wikidata value
-- this is useful for tracking and debugging
local replacetext = mw.text.trim(args.rt or args.replacetext or "")
-- if there's anything to return, then return a list
-- comma-separated by default, but may be specified by the sep parameter
-- optionally specify a hlist or ubl or a prose list, etc.
local strout
if #out > 0 then
if sorted then table.sort(out) end
-- if there's something to display and a pen icon is wanted, add it the end of the last value
local hasdisplay = false
for i, v in ipairs(out) do
if v ~= i18n.missinginfocat then
hasdisplay = true
break
end
end
if not noic and hasdisplay then
out[#out] = out[#out] .. createicon(args.langobj.code, entityID, propertyID)
end
if list == "" then
strout = table.concat(out, separator)
elseif list:lower() == "prose" then
strout = mw.text.listToText( out )
else
strout = mw.getCurrentFrame():expandTemplate{title = list, args = out}
end
if collapse >0 and #out > collapse then
strout = collapsediv .. strout .. "</div>"
end
else
strout = nil -- no items had valid reference
end
if replacetext ~= "" and strout then strout = replacetext end
return strout
end
-------------------------------------------------------------------------------
-- rendersnak takes a table (propval) containing the information stored on one property value
-- and returns the value as a string and its language if monolingual text.
-- It handles data of type:
-- wikibase-item
-- time
-- string, url, commonsMedia, external-id
-- quantity
-- globe-coordinate
-- monolingualtext
-- It also requires linked, the link/pre/postfixes, uabbr, and the arguments passed from frame.
-- The optional filter parameter allows quantities to be be filtered by unit Qid.
-------------------------------------------------------------------------------
-- Dependencies: parseParam(); labelOrId(); i18n[]; dateFormat();
-- roundto(); decimalPrecision(); decimalToDMS(); linkedItem();
-------------------------------------------------------------------------------
local rendersnak = function(propval, args, linked, lpre, lpost, pre, post, uabbr, filter)
lpre = lpre or ""
lpost = lpost or ""
pre = pre or ""
post = post or ""
args.lang = args.lang or findLang().code
-- allow values to display a fixed text instead of label
local dtxt = args.displaytext or args.dt
if dtxt == "" then dtxt = nil end
-- switch to use display of short name (P1813) instead of label
local snak = propval.mainsnak or propval
local dtype = snak.datatype
local dv = snak.datavalue
dv = dv and dv.value
-- value and monolingual text language code returned
local val, mlt
if propval.rank and not args.reqranks[propval.rank:sub(1, 1)] then
-- val is nil: value has a rank that isn't requested
------------------------------------
elseif snak.snaktype == "somevalue" then -- value is unknown
val = i18n["Unknown"]
------------------------------------
elseif snak.snaktype == "novalue" then -- value is none
-- val = "No value" -- don't return anything
------------------------------------
elseif dtype == "wikibase-item" then -- data type is a wikibase item:
-- it's wiki-linked value, so output as link if enabled and possible
local qnumber = dv.id
if linked then
val = linkedItem(qnumber, args)
else -- no link wanted so check for display-text, otherwise test for lang code
local label, islabel
if dtxt then
label = dtxt
else
label, islabel = labelOrId(qnumber)
local langlabel = mw.wikibase.getLabelByLang(qnumber, args.lang)
if langlabel then
label = mw.text.nowiki( langlabel )
end
end
val = pre .. label .. post
end -- test for link required
------------------------------------
elseif dtype == "time" then -- data type is time:
-- time is in timestamp format
-- date precision is integer per mediawiki
-- output formatting according to preferences (y/dmy/mdy)
-- BC format as BC or BCE
-- plaindate is passed to disable looking for "sourcing cirumstances"
-- or to set the adjectival form
-- qualifiers (if any) is a nested table or nil
-- lang is given, or user language, or site language
--
-- Here we can check whether args.df has a value
-- If not, use code from Module:Sandbox/RexxS/Getdateformat to set it from templates like {{Use mdy dates}}
val = dateFormat(dv.time, dv.precision, args.df, args.bc, args.pd, propval.qualifiers, args.lang, "", dv.calendarmodel)
------------------------------------
-- data types which are strings:
elseif dtype == "commonsMedia" or dtype == "external-id" or dtype == "string" or dtype == "url" then
-- commonsMedia or external-id or string or url
-- all have mainsnak.datavalue.value as string
if (lpre == "" or lpre == ":") and lpost == "" then
-- don't link if no linkpre/postfix or linkprefix is just ":"
val = pre .. dv .. post
elseif dtype == "external-id" then
val = "[" .. lpre .. dv .. lpost .. " " .. pre .. dv .. post .. "]"
else
val = "[[" .. lpre .. dv .. lpost .. "|" .. pre .. dv .. post .. "]]"
end -- check for link requested (i.e. either linkprefix or linkpostfix exists)
------------------------------------
-- data types which are quantities:
elseif dtype == "quantity" then
-- quantities have mainsnak.datavalue.value.amount and mainsnak.datavalue.value.unit
-- the unit is of the form http://www.wikidata.org/entity/Q829073
--
-- implement a switch to turn on/off numerical formatting later
local fnum = true
--
-- a switch to turn on/off conversions - only for en-wiki
local conv = parseParam(args.conv or args.convert, false)
-- if we have conversions, we won't have formatted numbers or scales
if conv then
uabbr = true
fnum = false
args.scale = "0"
end
--
-- a switch to turn on/off showing units, default is true
local showunits = parseParam(args.su or args.showunits, true)
--
-- convert amount to a number
local amount = tonumber(dv.amount) or i18n["NaN"]
--
-- scale factor for millions, billions, etc.
local sc = tostring(args.scale or ""):sub(1,1):lower()
local scale
if sc == "a" then
-- automatic scaling
if amount > 1e15 then
scale = 12
elseif amount > 1e12 then
scale = 9
elseif amount > 1e9 then
scale = 6
elseif amount > 1e6 then
scale = 3
else
scale = 0
end
else
scale = tonumber(args.scale) or 0
if scale < 0 or scale > 12 then scale = 0 end
scale = math.floor(scale/3) * 3
end
local factor = 10^scale
amount = amount / factor
-- ranges:
local range = ""
-- check if upper and/or lower bounds are given and significant
local upb = tonumber(dv.upperBound)
local lowb = tonumber(dv.lowerBound)
if upb and lowb then
-- differences rounded to 2 sig fig:
local posdif = roundto(upb - amount, 2) / factor
local negdif = roundto(amount - lowb, 2) / factor
upb, lowb = amount + posdif, amount - negdif
-- round scaled numbers to integers or 4 sig fig
if (scale > 0 or sc == "a") then
if amount < 1e4 then
amount = roundto(amount, 4)
else
amount = math.floor(amount + 0.5)
end
end
if fnum then amount = args.langobj:formatNum( amount ) end
if posdif ~= negdif then
-- non-symmetrical
range = " +" .. posdif .. " -" .. negdif
elseif posdif ~= 0 then
-- symmetrical and non-zero
range = " ±" .. posdif
else
-- otherwise range is zero, so leave it as ""
end
else
-- round scaled numbers to integers or 4 sig fig
if (scale > 0 or sc == "a") then
if amount < 1e4 then
amount = roundto(amount, 4)
else
amount = math.floor(amount + 0.5)
end
end
if fnum then amount = args.langobj:formatNum( amount ) end
end
-- unit names and symbols:
-- extract the qid in the form 'Qnnn' from the value.unit url
-- and then fetch the label from that - or symbol if unitabbr is true
local unit = ""
local usep = ""
local usym = ""
local unitqid = string.match( dv.unit, "(Q%d+)" )
if filter and unitqid ~= filter then return nil end
if unitqid and showunits then
local uname = mw.wikibase.getLabelByLang(unitqid, args.lang) or ""
if uname ~= "" then usep, unit = " ", uname end
if uabbr then
-- see if there's a unit symbol (P5061)
local unitsymbols = mw.wikibase.getBestStatements(unitqid, "P5061")
-- construct fallback table, add local lang and multiple languages
local fbtbl = mw.language.getFallbacksFor( args.lang )
table.insert( fbtbl, 1, args.lang )
table.insert( fbtbl, 1, "mul" )
local found = false
for idx1, us in ipairs(unitsymbols) do
for idx2, fblang in ipairs(fbtbl) do
if us.mainsnak.datavalue.value.language == fblang then
usym = us.mainsnak.datavalue.value.text
found = true
break
end
if found then break end
end -- loop through fallback table
end -- loop through values of P5061
if found then usep, unit = " ", usym end
end
end
-- format display:
if conv then
if range == "" then
val = mw.getCurrentFrame():expandTemplate{title = "cvt", args = {amount, unit}}
else
val = mw.getCurrentFrame():expandTemplate{title = "cvt", args = {lowb, "to", upb, unit}}
end
elseif unit == "$" or unit == "£" then
val = unit .. amount .. range .. i18n.multipliers[scale]
else
val = amount .. range .. i18n.multipliers[scale] .. usep .. unit
end
------------------------------------
-- datatypes which are global coordinates:
elseif dtype == "globe-coordinate" then
-- 'display' parameter defaults to "inline, title" *** unused for now ***
-- local disp = args.display or ""
-- if disp == "" then disp = "inline, title" end
--
-- format parameter switches from deg/min/sec to decimal degrees
-- default is deg/min/sec -- decimal degrees needs |format = dec
local form = (args.format or ""):lower():sub(1,3)
if form ~= "dec" then form = "dms" end -- not needed for now
--
-- show parameter allows just the latitude, or just the longitude, or both
-- to be returned as a signed decimal, ignoring the format parameter.
local show = (args.show or ""):lower()
if show ~= "longlat" then show = show:sub(1,3) end
--
local lat, long, prec = dv.latitude, dv.longitude, dv.precision
if show == "lat" then
val = decimalPrecision(lat, prec)
elseif show == "lon" then
val = decimalPrecision(long, prec)
elseif show == "longlat" then
val = decimalPrecision(long, prec) .. ", " .. decimalPrecision(lat, prec)
else
local ns = "N"
local ew = "E"
if lat < 0 then
ns = "S"
lat = - lat
end
if long < 0 then
ew = "W"
long = - long
end
if form == "dec" then
lat = decimalPrecision(lat, prec)
long = decimalPrecision(long, prec)
val = lat .. "°" .. ns .. " " .. long .. "°" .. ew
else
local latdeg, latmin, latsec = decimalToDMS(lat, prec)
local longdeg, longmin, longsec = decimalToDMS(long, prec)
if latsec == 0 and longsec == 0 then
if latmin == 0 and longmin == 0 then
val = latdeg .. "°" .. ns .. " " .. longdeg .. "°" .. ew
else
val = latdeg .. "°" .. latmin .. "′" .. ns .. " "
val = val .. longdeg .. "°".. longmin .. "′" .. ew
end
else
val = latdeg .. "°" .. latmin .. "′" .. latsec .. "″" .. ns .. " "
val = val .. longdeg .. "°" .. longmin .. "′" .. longsec .. "″" .. ew
end
end
end
------------------------------------
elseif dtype == "monolingualtext" then -- data type is Monolingual text:
-- has mainsnak.datavalue.value as a table containing language/text pairs
-- collect all the values in 'out' and languages in 'mlt' and process them later
val = pre .. dv.text .. post
mlt = dv.language
------------------------------------
else
-- some other data type so write a specific handler
val = "unknown data type: " .. dtype
end -- of datatype/unknown value/sourced check
return val, mlt
end
-------------------------------------------------------------------------------
-- propertyvalueandquals takes a property object, the arguments passed from frame,
-- and a qualifier propertyID.
-- It returns a sequence (table) of values representing the values of that property
-- and qualifiers that match the qualifierID if supplied.
-------------------------------------------------------------------------------
-- Dependencies: parseParam(); sourced(); labelOrId(); i18n.latestdatequalifier();
-- roundto(); decimalPrecision(); decimalToDMS(); assembleoutput();
-------------------------------------------------------------------------------
local function propertyvalueandquals(objproperty, args, qualID)
-- needs this style of declaration because it's re-entrant
-- onlysourced is a boolean passed to return only values sourced to other than Wikipedia
-- if nothing or an empty string is passed set it true
local onlysrc = parseParam(args.onlysourced or args.osd, true)
-- linked is a a boolean that enables the link to a local page via sitelink
-- if nothing or an empty string is passed set it true
local linked = parseParam(args.linked, true)
-- prefix is a string that may be nil, empty (""), or a string of characters
-- this is prefixed to each value
-- useful when when multiple values are returned
-- any double-quotes " are stripped out, so that spaces may be passed
local prefix = (args.prefix or ""):gsub('"', '')
-- postfix is a string that may be nil, empty (""), or a string of characters
-- this is postfixed to each value
-- useful when when multiple values are returned
-- any double-quotes " are stripped out, so that spaces may be passed
local postfix = (args.postfix or ""):gsub('"', '')
-- linkprefix is a string that may be nil, empty (""), or a string of characters
-- this creates a link and is then prefixed to each value
-- useful when when multiple values are returned and indirect links are needed
-- any double-quotes " are stripped out, so that spaces may be passed
local lprefix = (args.linkprefix or args.lp or ""):gsub('"', '')
-- linkpostfix is a string that may be nil, empty (""), or a string of characters
-- this is postfixed to each value when linking is enabled with lprefix
-- useful when when multiple values are returned
-- any double-quotes " are stripped out, so that spaces may be passed
local lpostfix = (args.linkpostfix or ""):gsub('"', '')
-- wdlinks is a boolean passed to enable links to Wikidata when no article exists
-- if nothing or an empty string is passed set it false
local wdl = parseParam(args.wdlinks or args.wdl, false)
-- unitabbr is a boolean passed to enable unit abbreviations for common units
-- if nothing or an empty string is passed set it false
local uabbr = parseParam(args.unitabbr or args.uabbr, false)
-- qualsonly is a boolean passed to return just the qualifiers
-- if nothing or an empty string is passed set it false
local qualsonly = parseParam(args.qualsonly or args.qo, false)
-- maxvals is a string that may be nil, empty (""), or a number
-- this determines how many items may be returned when multiple values are available
-- setting it = 1 is useful where the returned string is used within another call, e.g. image
local maxvals = tonumber(args.maxvals) or 0
-- pd (plain date) is a string: yes/true/1 | no/false/0 | adj
-- to disable/enable "sourcing cirumstances" or use adjectival form for the plain date
local pd = args.plaindate or args.pd or "no"
args.pd = pd
-- allow qualifiers to have a different date format; default to year
args.qdf = args.qdf or args.qualifierdateformat or args.df or "y"
local lang = args.lang or findlang().code
-- qualID is a string list of wanted qualifiers or "ALL"
qualID = qualID or ""
-- capitalise list of wanted qualifiers and substitute "DATES"
qualID = qualID:upper():gsub("DATES", "P580, P582")
local allflag = (qualID == "ALL")
-- create table of wanted qualifiers as key
local qwanted = {}
-- create sequence of wanted qualifiers
local qorder = {}
for q in mw.text.gsplit(qualID, "%p") do -- split at punctuation and iterate
local qtrim = mw.text.trim(q)
if qtrim ~= "" then
qwanted[mw.text.trim(q)] = true
qorder[#qorder+1] = qtrim
end
end
-- qsep is the output separator for rendering qualifier list
local qsep = (args.qsep or ""):gsub('"', '')
-- qargs are the arguments to supply to assembleoutput()
local qargs = {
["osd"] = "false",
["linked"] = tostring(linked),
["prefix"] = args.qprefix,
["postfix"] = args.qpostfix,
["linkprefix"] = args.qlinkprefix or args.qlp,
["linkpostfix"] = args.qlinkpostfix,
["wdl"] = "false",
["unitabbr"] = tostring(uabbr),
["maxvals"] = 0,
["sorted"] = tostring(args.qsorted),
["noicon"] = "true",
["list"] = args.qlist,
["sep"] = qsep,
["langobj"] = args.langobj,
["lang"] = args.langobj.code,
["df"] = args.qdf,
}
-- all proper values of a Wikidata property will be the same type as the first
-- qualifiers don't have a mainsnak, properties do
local datatype = objproperty[1].datatype or objproperty[1].mainsnak.datatype
-- out[] holds the a list of returned values for this property
-- mlt[] holds the language code if the datatype is monolingual text
local out = {}
local mlt = {}
for k, v in ipairs(objproperty) do
local hasvalue = true
if (onlysrc and not sourced(v)) then
-- no value: it isn't sourced when onlysourced=true
hasvalue = false
else
local val, lcode = rendersnak(v, args, linked, lprefix, lpostfix, prefix, postfix, uabbr)
if not val then
hasvalue = false -- rank doesn't match
elseif qualsonly and qualID then
-- suppress value returned: only qualifiers are requested
else
out[#out+1], mlt[#out+1] = val, lcode
end
end
-- See if qualifiers are to be returned:
local snak = v.mainsnak or v
if hasvalue and v.qualifiers and qualID ~= "" and snak.snaktype~="novalue" then
-- collect all wanted qualifier values returned in qlist, indexed by propertyID
local qlist = {}
local timestart, timeend = "", ""
-- loop through qualifiers
for k1, v1 in pairs(v.qualifiers) do
if allflag or qwanted[k1] then
if k1 == "P1326" then
local ts = v1[1].datavalue.value.time
local dp = v1[1].datavalue.value.precision
qlist[k1] = dateFormat(ts, dp, args.qdf, args.bc, pd, "", lang, "before")
elseif k1 == "P1319" then
local ts = v1[1].datavalue.value.time
local dp = v1[1].datavalue.value.precision
qlist[k1] = dateFormat(ts, dp, args.qdf, args.bc, pd, "", lang, "after")
elseif k1 == "P580" then
timestart = propertyvalueandquals(v1, qargs)[1] or "" -- treat only one start time as valid
elseif k1 == "P582" then
timeend = propertyvalueandquals(v1, qargs)[1] or "" -- treat only one end time as valid
else
local q = assembleoutput(propertyvalueandquals(v1, qargs), qargs)
-- we already deal with circa via 'sourcing circumstances' if the datatype was time
-- circa may be either linked or unlinked *** internationalise later ***
if datatype ~= "time" or q ~= "circa" and not (type(q) == "string" and q:find("circa]]")) then
qlist[k1] = q
end
end
end -- of test for wanted
end -- of loop through qualifiers
-- set date separator
local t = timestart .. timeend
-- *** internationalise date separators later ***
local dsep = "–"
if t:find("%s") or t:find(" ") then dsep = " – " end
-- set the order for the list of qualifiers returned; start time and end time go last
if next(qlist) then
local qlistout = {}
if allflag then
for k2, v2 in pairs(qlist) do
qlistout[#qlistout+1] = v2
end
else
for i2, v2 in ipairs(qorder) do
qlistout[#qlistout+1] = qlist[v2]
end
end
if t ~= "" then
qlistout[#qlistout+1] = timestart .. dsep .. timeend
end
local qstr = assembleoutput(qlistout, qargs)
if qualsonly then
out[#out+1] = qstr
else
out[#out] = out[#out] .. " (" .. qstr .. ")"
end
elseif t ~= "" then
if qualsonly then
out[#out+1] = timestart .. dsep .. timeend
else
out[#out] = out[#out] .. " (" .. timestart .. dsep .. timeend .. ")"
end
end
end -- of test for qualifiers wanted
if maxvals > 0 and #out >= maxvals then break end
end -- of for each value loop
-- we need to pick one value to return if the datatype was "monolingualtext"
-- if there's only one value, use that
-- otherwise look through the fallback languages for a match
if datatype == "monolingualtext" and #out >1 then
lang = mw.text.split( lang, '-', true )[1]
local fbtbl = mw.language.getFallbacksFor( lang )
table.insert( fbtbl, 1, lang )
local bestval = ""
local found = false
for idx1, lang1 in ipairs(fbtbl) do
for idx2, lang2 in ipairs(mlt) do
if (lang1 == lang2) and not found then
bestval = out[idx2]
found = true
break
end
end -- loop through values of property
end -- loop through fallback languages
if found then
-- replace output table with a table containing the best value
out = { bestval }
else
-- more than one value and none of them on the list of fallback languages
-- sod it, just give them the first one
out = { out[1] }
end
end
return out
end
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- Public functions
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- _getValue makes the functionality of getValue available to other modules
-------------------------------------------------------------------------------
-- Dependencies: setRanks; parseInput; propertyvalueandquals; assembleoutput; parseParam; sourced;
-- labelOrId; i18n.latestdatequalifier; roundto; decimalPrecision; decimalToDMS;
-------------------------------------------------------------------------------
p._getValue = function(args)
-- parameter sets for commonly used groups of parameters
local paraset = tonumber(args.ps or args.parameterset or 0)
if paraset == 1 then
-- a common setting
args.rank = "best"
args.fetchwikidata = "ALL"
args.onlysourced = "no"
args.noicon = "true"
elseif paraset == 2 then
-- equivalent to raw
args.rank = "best"
args.fetchwikidata = "ALL"
args.onlysourced = "no"
args.noicon = "true"
args.linked = "no"
args.pd = "true"
elseif paraset == 3 then
-- third set goes here
end
-- implement eid parameter
local eid = args.eid
if eid == "" then
return nil
elseif eid then
args.qid = eid
end
local propertyID = mw.text.trim(args[1] or "")
args.reqranks = setRanks(args.rank)
-- replacetext (rt) is a string that is returned instead of any non-empty Wikidata value
-- this is useful for tracking and debugging, so we set fetchwikidata=ALL to fill the whitelist
local replacetext = mw.text.trim(args.rt or args.replacetext or "")
if replacetext ~= "" then
args.fetchwikidata = "ALL"
end
local f = {}
f.args = args
local entityid, props = parseInput(f, f.args[2], propertyID)
if not entityid then
return props -- either the input parameter or nothing
end
-- qual is a string containing the property ID of the qualifier(s) to be returned
-- if qual == "ALL" then all qualifiers returned
-- if qual == "DATES" then qualifiers P580 (start time) and P582 (end time) returned
-- if nothing or an empty string is passed set it nil -> no qualifiers returned
local qualID = mw.text.trim(args.qual or ""):upper()
if qualID == "" then qualID = nil end
-- set a language object and code in the args table
args.langobj = findLang(args.lang)
args.lang = args.langobj.code
-- table 'out' stores the return value(s):
local out = propertyvalueandquals(props, args, qualID)
-- format the table of values and return it as a string:
return assembleoutput(out, args, entityid, propertyID)
end
-------------------------------------------------------------------------------
-- getValue is used to get the value(s) of a property
-- The property ID is passed as the first unnamed parameter and is required.
-- A locally supplied parameter may optionaly be supplied as the second unnamed parameter.
-- The function will now also return qualifiers if parameter qual is supplied
-------------------------------------------------------------------------------
-- Dependencies: _getValue; setRanks; parseInput; propertyvalueandquals; assembleoutput; parseParam; sourced;
-- labelOrId; i18n.latestdatequalifier; roundto; decimalPrecision; decimalToDMS;
-------------------------------------------------------------------------------
p.getValue = function(frame)
local args= frame.args
if not args[1] then
args = frame:getParent().args
if not args[1] then return i18n.errors["No property supplied"] end
end
return p._getValue(args)
end
-------------------------------------------------------------------------------
-- getPropOfProp takes two propertyIDs: prop1 and prop2 (as well as the usual parameters)
-- If the value(s) of prop1 are of type "wikibase-item" then it returns the value(s) of prop2
-- of each of those wikibase-items.
-- The usual whitelisting, blacklisting, onlysourced, etc. are implemented
-------------------------------------------------------------------------------
-- Dependencies: parseParam; setRanks; parseInput; sourced; propertyvalueandquals assembleoutput;
-------------------------------------------------------------------------------
p._getPropOfProp = function(args)
-- parameter sets for commonly used groups of parameters
local paraset = tonumber(args.ps or args.parameterset or 0)
if paraset == 1 then
-- a common setting
args.rank = "best"
args.fetchwikidata = "ALL"
args.onlysourced = "no"
args.noicon = "true"
elseif paraset == 2 then
-- equivalent to raw
args.rank = "best"
args.fetchwikidata = "ALL"
args.onlysourced = "no"
args.noicon = "true"
args.linked = "no"
args.pd = "true"
elseif paraset == 3 then
-- third set goes here
end
args.reqranks = setRanks(args.rank)
args.langobj = findLang(args.lang)
args.lang = args.langobj.code
local pid1 = args.prop1 or args.pid1 or ""
local pid2 = args.prop2 or args.pid2 or ""
local localval = mw.text.trim(args[1] or "")
if pid1 == "" or pid2 == "" then return nil end
local f = {}
f.args = args
local qid1, statements1 = parseInput(f, localval, pid1)
if not qid1 then return localval end
local onlysrc = parseParam(args.onlysourced or args.osd, true)
local maxvals = tonumber(args.maxvals) or 0
local qualID = mw.text.trim(args.qual or ""):upper()
if qualID == "" then qualID = nil end
local out = {}
for k, v in ipairs(statements1) do
if not onlysrc or sourced(v) then
local snak = v.mainsnak
if snak.datatype == "wikibase-item" and snak.snaktype == "value" then
local qid2 = snak.datavalue.value.id
local statements2 = {}
if args.reqranks.b then
statements2 = mw.wikibase.getBestStatements(qid2, pid2)
else
statements2 = mw.wikibase.getAllStatements(qid2, pid2)
end
if statements2[1] then
local out2 = propertyvalueandquals(statements2, args, qualID)
out[#out+1] = assembleoutput(out2, args, qid2, pid2)
end
end -- of test for valid property1 value
end -- of test for sourced
if maxvals > 0 and #out >= maxvals then break end
end -- of loop through values of property1
return assembleoutput(out, args, qid1, pid1)
end
p.getPropOfProp = function(frame)
local args= frame.args
if not args.prop1 and not args.pid1 then
args = frame:getParent().args
if not args.prop1 and not args.pid1 then return i18n.errors["No property supplied"] end
end
return p._getPropOfProp(args)
end
return p
-------------------------------------------------------------------------------
-- List of exported functions
-------------------------------------------------------------------------------
--[[
_getValue
getValue
_getPropOfProp
getPropOfProp
--]]
-------------------------------------------------------------------------------
