Event by host adding a fallback to current user if user not specified

server/src/schema/queries/EventsByHost.js

@@ -1,14 +1,13 @@
 import {
   GraphQLInt,
   GraphQLList,
-  GraphQLString,
-  GraphQLNonNull
+  GraphQLString
 } from 'graphql'
 import { EventType } from '../types'
 import { Event } from '../../models'
 
 const args = {
-  hostId: { type: new GraphQLNonNull(GraphQLString) },
+  hostId: { type: GraphQLString },
   minDate: { type: GraphQLInt },
   maxDate: { type: GraphQLInt }
 }
@@ -16,7 +15,7 @@ const args = {
 const resolve = (parent, { hostId, minDate, maxDate }, context) => {
   return Event.find(
     Object.assign(
-      { hostId },
+      hostId ? { hostId } : { hostId: context.userId },
       minDate || maxDate
         ? { startDatetime:
           Object.assign(