mysql-connector: minor refactor

dist/datasource-zabbix/datasource.js

@@ -372,7 +372,7 @@ System.register(['lodash', 'app/core/utils/datemath', './utils', './migrations',
                 // Use history
                 if (_this2.enableDirectDBConnection) {
                   getHistoryPromise = _this2.zabbix.getHistory(items, timeFrom, timeTo, options).then(function (history) {
-                    return _this2.zabbix.dbConnector.handleHistory(history, items);
+                    return _this2.zabbix.dbConnector.handleGrafanaTSResponse(history, items);
                   });
                 } else {
                   getHistoryPromise = _this2.zabbix.getHistory(items, timeFrom, timeTo).then(function (history) {

dist/datasource-zabbix/zabbixDBConnector.js

@@ -71,11 +71,11 @@ System.register(['angular', 'lodash'], function (_export, _context) {
           });
         }
       }, {
-        key: 'handleHistory',
-        value: function handleHistory(history, items) {
+        key: 'handleGrafanaTSResponse',
+        value: function handleGrafanaTSResponse(history, items) {
           var addHostName = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
 
-          return convertHistory(history, items, addHostName);
+          return convertGrafanaTSResponse(history, items, addHostName);
         }
       }, {
         key: 'invokeSQLQuery',
@@ -113,7 +113,7 @@ System.register(['angular', 'lodash'], function (_export, _context) {
 
   ///////////////////////////////////////////////////////////////////////////////
 
-  function convertHistory(time_series, items, addHostName) {
+  function convertGrafanaTSResponse(time_series, items, addHostName) {
     var hosts = _.uniqBy(_.flatten(_.map(items, 'hosts')), 'hostid'); //uniqBy is needed to deduplicate
     var grafanaSeries = _.map(time_series, function (series) {
       var itemid = series.name;