Module:LocationMap

Documentation for this module may be created at Module:LocationMap/doc

local p = {}

function p.displayMap(frame)
    local mw = require('mw')
    local smw = mw.smw or mw.ext.smw
    
    local pageName = frame.args.pageName or mw.title.getCurrentTitle().text
    local hasCoordinates = frame.args.hasCoordinates or ''
    local hasGeoJson = frame.args.hasGeoJson or ''
    
    -- Get all child locations with page names
    local query = {
        string.format('[[Is Located In::%s]]', pageName),
        '?Has Coordinates',
        'mainlabel=-',
        'limit=500'
    }
    
    local results = smw.getQueryResult(query)
    
    -- Build coordinates list
    local coordinates = {}
    
    -- Add current location
    if hasCoordinates ~= '' then
        table.insert(coordinates, hasCoordinates)
    end
    
    -- Add child locations
    if results and results.results then
        for childPageName, data in pairs(results.results) do
            if data.printouts and data.printouts['Has Coordinates'] and data.printouts['Has Coordinates'][1] then
                local coords = data.printouts['Has Coordinates'][1]
                table.insert(coordinates, coords)
            end
        end
    end
    
    -- Build the display_map call
    local mapParams = {}
    
    if #coordinates > 0 then
        table.insert(mapParams, table.concat(coordinates, ';'))
    end
    
    table.insert(mapParams, 'zoom=6')
    table.insert(mapParams, 'service=leaflet')
    table.insert(mapParams, 'height=250px')
    
    if hasCoordinates ~= '' then
        table.insert(mapParams, 'center=' .. hasCoordinates)
    end
    
    if hasGeoJson ~= '' then
        table.insert(mapParams, 'geojson=' .. hasGeoJson)
    end
    
    if #coordinates > 0 or hasGeoJson ~= '' then
        return frame:callParserFunction('#display_map', table.unpack(mapParams))
    else
        return ''
    end
end

return p