imported>David-ri93: Support choice of multiple keys

2020-04-27T23:18:31Z

Support choice of multiple keys

New page

--[[
This is a proof of concept trying to build a timeline from wikidata
--]]
local p = {}
local wd = require('Module:Wikidata')

local aliasesP = {
softwareVersionIdentifier = "P348",
publicationDate = "P577",
endTime = "P582",
discontinuedDate = "P2669",
versionType = "P548",
title = "P1476",
}

local aliasesQ = {
fedora = "Q48267",
stableVersion = "Q2804309",
softwareBetaVersion = "Q3295609",
}

local function recConcat(t)
if type(t) ~= 'table' then
return t
end
local first = true
local s = "("
for _, value in ipairs(t) do
s = s .. recConcat(value)
if not first then
s = s .. ", "
end
first = false
end
return s .. ")"
end

local function getValueOrUnknown(object, keys)
local stepper = object
for _, key in ipairs(keys) do
if type(key) == 'table' then
for _, testKey in ipairs(key) do
if stepper[testKey] then
key = testKey
break
end
end
end
if not stepper[key] then
mw.logObject("Key not found " .. recConcat(key) ..
" in order " .. recConcat(keys))
--mw.logObject(keys)
--mw.logObject(stepper)
return "Unknown"
end
stepper = stepper[key]
end
return stepper
end

function p.hello()
local versions = mw.wikibase.getAllStatements(aliasesQ.fedora,
aliasesP.softwareVersionIdentifier)
-- mw.logObject(versions)
local counter = 0
for k, v in pairs(versions) do
counter = counter + 1

-- there surly is a smarter way to write this
local version = getValueOrUnknown(v, {"mainsnak", "datavalue", "value"})
local startTime = getValueOrUnknown(v, {"qualifiers",
aliasesP.publicationDate, 1, "datavalue", "value", "time"})
local endTime = getValueOrUnknown(v, {"qualifiers",
{aliasesP.discontinuedDate, aliasesP.endTime}, 1, "datavalue", "value", "time"})
mw.logObject("(Key " .. k .. "), Version " .. version .. ", start " .. startTime .. ", endTime " .. endTime)
if counter == 3 then
mw.logObject(v)
end
end
return "TODO count is " .. counter
end

return p

Module:Sandbox/David-ri93/Timeline Fedora Linux Wikidata - Revision history

imported>David-ri93: Support choice of multiple keys