refactored for lodash because its siren song is so sweet

controller/coarse_reverse.js

@@ -18,6 +18,7 @@ const coarse_granularities = [
 
 // remove non-coarse layers and return what's left (or all if empty)
 function getEffectiveLayers(requested_layers) {
+  // remove non-coarse layers
   const non_coarse_layers_removed = _.without(requested_layers, 'venue', 'address', 'street');
 
   // if resulting array is empty, use all coarse granularities
@@ -62,30 +63,32 @@ function synthesizeDoc(results) {
   const doc = new Document('whosonfirst', most_granular_layer, id.toString());
   doc.setName('default', results[most_granular_layer][0].name);
 
-  if (results[most_granular_layer][0].hasOwnProperty('centroid')) {
+  // assign the administrative hierarchy
+  _.keys(results).forEach((layer) => {
+    doc.addParent(layer, results[layer][0].name, results[layer][0].id.toString(), results[layer][0].abbr);
+  });
+
+  // set centroid if available
+  if (_.has(results[most_granular_layer][0], 'centroid')) {
     doc.setCentroid( results[most_granular_layer][0].centroid );
   }
 
-  if (results[most_granular_layer][0].hasOwnProperty('bounding_box')) {
-    const parsedBoundingBox = results[most_granular_layer][0].bounding_box.split(',').map(parseFloat);
+  // set bounding box if available
+  if (_.has(results[most_granular_layer][0], 'bounding_box')) {
+    const parsed_bounding_box = results[most_granular_layer][0].bounding_box.split(',').map(parseFloat);
     doc.setBoundingBox({
       upperLeft: {
-        lat: parsedBoundingBox[3],
-        lon: parsedBoundingBox[0]
+        lat: parsed_bounding_box[3],
+        lon: parsed_bounding_box[0]
       },
       lowerRight: {
-        lat: parsedBoundingBox[1],
-        lon: parsedBoundingBox[2]
+        lat: parsed_bounding_box[1],
+        lon: parsed_bounding_box[2]
       }
     });
 
   }
 
-  // assign the administrative hierarchy
-  Object.keys(results).forEach((layer) => {
-    doc.addParent(layer, results[layer][0].name, results[layer][0].id.toString(), results[layer][0].abbr);
-  });
-
   const esDoc = doc.toESDocument();
   esDoc.data._id = esDoc._id;
   esDoc.data._type = esDoc._type;