Compound queries
Maps can be used together with the Semantic Compound Queries extension.
Semantic Compound Queries allows displaying the results of multiple queries together. This is done via the #compound_query parser function.
The below example runs 3 queries: cities in Germany, cities in Belgium, and cities in neither of those two countries. Cities in Germany get a green marker icon, those in Belgium get a red one, and those in neither use the default marker icon.
{{#compound_query:
[[Category:Cities]] [[Located in::Germany]] ; ?Coordinates ; icon=Green-marker.png
| [[Category:Cities]] [[Located in::Belgium]] ; ?Coordinates ; icon=Red-marker.png
| [[Category:Cities]] [[Located in::!Germany]] [[Located in::!Belgium]] ; ?Coordinates
| format=map
}}
{{#compound_query: Germany ; ?Coordinates ; icon=Green-marker.png
| Belgium ; ?Coordinates ; icon=Red-marker.png | !Germany !Belgium ; ?Coordinates | format=map | scrollzoom=off | hidenamespace=yes
}}
You can customize maps shown via compound queries with the same parameters available in regular Semantic MediaWiki queries with a map result format. See Leaflet SMW queries and Google Maps SMW queries for more information on available parameters.
