RESTWS-953:Support setting values of type "Location"

omod-1.8/src/main/java/org/openmrs/module/webservices/rest/web/v1_0/resource/openmrs1_8/ObsResource1_8.java

@@ -439,19 +439,19 @@ public static void setValue(Obs obs, Object value) throws ParseException, Conver
 			// special case for Location
 			String potentialLocationUuid = null;
 
-			// if this is a representation of an object, so get uuid property as potential location uuid
+			// if this is a representation of an object, get the uuid property as potential location uuid
 			if (value instanceof Map) {
 				Object uuid = ((Map) value).get(RestConstants.PROPERTY_UUID);
 				if (uuid != null) {
 					potentialLocationUuid = uuid.toString();
 				}
 			}
 			else {
-				// otherwise, could this just uuid value
+				// otherwise, we will test if the value itself is a location uuid
 				potentialLocationUuid = value.toString();
 			}
 
-			// if there is a potential uuid, see if there is a matching location and set
+			// if there is a potential uuid, see if there is a matching location, and,if so, set the value text as the primary key
 			if (RestUtil.isUuid(potentialLocationUuid)) {
 				Location location = Context.getLocationService().getLocationByUuid(potentialLocationUuid);
 				if (location != null) {