Modul:Wikidata utilities

Die Dokumentation für dieses Modul kann unter Modul:Wikidata utilities/doc erstellt werden

local fw = {}

function fw.checkId( id )
	if (not id) or (id == '') then return '' end
	local i = id:upper()
	if mw.ustring.match( i, '^Q[%d]+$') == nil then
		if mw.ustring.match( i, '^[%d]+$') ~= nil then -- only number
			i = 'Q' .. i
		else -- invalid id
			i = ''
		end
	end
	return i
end

local function getFirstValue( statements )
	if #statements == 0 then
		return nil
	end

	for i = 1, #statements, 1 do
		if statements[i].mainsnak.snaktype == 'value' then
			return statements[i].mainsnak.datavalue.value
		end
	end

	return nil
end

local function getAllValues( statements )
	local values = {}
	if #statements > 0 then
		for i = 1, #statements, 1 do
			if statements[i].mainsnak.snaktype == 'value' then
				table.insert( values, statements[i].mainsnak.datavalue.value )
			end
		end
	end

	return values
end

function fw.getEntWDid( anEntity, p )
	if anEntity == nil then
		return ''
	end
	
	local value = getFirstValue( anEntity:getBestStatements( p ) );
	if value then
		return value.id
	end

	return ''
end

function fw.getEntWDvalue( anEntity, p )
	if anEntity == nil then
		return ''
	end

	local value = getFirstValue( anEntity:getBestStatements( p ) );
	if value then
		return value
	end

	return ''
end

function fw.getWDid( id, p )
	if not id or id == '' then
		return ''
	end

	local value = getFirstValue( mw.wikibase.getBestStatements( id, p ) );
	if value then
		return value.id
	end

	return ''
end

function fw.getWDvalue( id, p )
	if not id or id == '' then
		return ''
	end

	local value = getFirstValue( mw.wikibase.getBestStatements( id, p ) );
	if value then
		return value
	end

	return ''
end

return fw