Added indexes to 'entries' and 'treatments' along with other updates (#5463)

* Added compound indexes for treatments and entries collections. Updated ensureIndex to createIndex in mongo-strage.js as ensureIndex has been deprecated. Finally, updated testing/populate.js to be compatible with more recent versions of the node driver, as well as fixing a path issue.

* Fixed missing end quote in lib/server/treatments.js. Changed all newly added double quotes to single quote to match style guide.

* Removed indexes that referenced key600.

lib/server/entries.js

@@ -140,7 +140,15 @@ function storage(env, ctx) {
   api.query_for = query_for;
   api.getEntry = getEntry;
   api.aggregate = require('./aggregate')({ }, api);
-  api.indexedFields = [ 'date', 'type', 'sgv', 'mbg', 'sysTime', 'dateString' ];
+  api.indexedFields = [
+    'date'
+    , 'type'
+    , 'sgv'
+    , 'mbg'
+    , 'sysTime'
+    , 'dateString'
+    , { 'type' : 1, 'date' : -1, 'dateString' : 1 }
+ ];
   return api;
 }
 
@@ -160,4 +168,3 @@ storage.queryOpts = {
 // expose module
 storage.storage = storage;
 module.exports = storage;
-

lib/server/treatments.js

@@ -133,6 +133,7 @@ function storage (env, ctx) {
     , 'percent'
     , 'absolute'
     , 'duration'
+    , { 'eventType' : 1, 'duration' : 1, 'created_at' : 1 }
   ];
 
   api.remove = remove;

lib/storage/mongo-storage.js

@@ -66,7 +66,7 @@ function init (env, cb, forceNewConnection) {
   mongo.ensureIndexes = function ensureIndexes (collection, fields) {
     fields.forEach(function (field) {
       console.info('ensuring index for: ' + field);
-      collection.ensureIndex(field, function (err) {
+      collection.createIndex(field, { 'background': true }, function (err) {
         if (err) {
           console.error('unable to ensureIndex for: ' + field + ' - ' + err);
         }

testing/populate.js

@@ -3,19 +3,22 @@
 var mongodb = require('mongodb');
 var env = require('./../env')();
 
-var util = require('./helpers/util');
+var util = require('./util');
 
 main();
 
 function main() {
   var MongoClient = mongodb.MongoClient;
-  MongoClient.connect(env.storageURI, function connected(err, db) {
+  MongoClient.connect(env.storageURI, { "useUnifiedTopology" : true, "useNewUrlParser" : true }, function connected(err, client) {
 
     console.log('Connecting to mongo...');
     if (err) {
       console.log('Error occurred: ', err);
       throw err;
     }
+
+    var db = client.db();
+
     populate_collection(db);
   });
 }