Adding a new mutation for updating event status

server/src/schema/mutations/ChangeEventStatus.js

@@ -0,0 +1,39 @@
+import {
+  GraphQLNonNull,
+  GraphQLID,
+} from 'graphql';
+import { AuthentificationError } from '../../errors';
+import { EventType } from '../types';
+import { Event } from '../../models';
+import EventStatusEnum from '../types/enum/EventStatus';
+
+const args = {
+  eventId: { type: new GraphQLNonNull(GraphQLID) },
+  status: { type: EventStatusEnum },
+};
+
+const resolve = (parent, { eventId: _id, status }, { userId: hostId }) => {
+  if (!hostId) {
+    throw new AuthentificationError();
+  }
+
+  return new Promise((res, rej) => {
+    Event.findOneAndUpdate({ _id, hostId }, { status }, { new: true }, (err, modifiedEvent) => {
+      if (err) {
+        rej(err);
+        return;
+      }
+      res(modifiedEvent);
+    });
+  });
+};
+
+const mutation = {
+  changeEventStatus: {
+    type: EventType,
+    args,
+    resolve,
+  },
+};
+
+export default mutation;

server/src/schema/mutations/index.js

@@ -8,6 +8,7 @@ import RegisterToEventMutation from './RegisterToEvent';
 import EditParticipantMutation from './EditParticipant';
 import CreateFormulaMutation from './CreateFormula';
 import CreatePlotterMutation from './CreatePlotter';
+import ChangeEventStatusMutation from './ChangeEventStatus';
 
 const Mutation = new GraphQLObjectType({
   name: 'Mutation',
@@ -18,6 +19,7 @@ const Mutation = new GraphQLObjectType({
     EditParticipantMutation,
     CreateFormulaMutation,
     CreatePlotterMutation,
+    ChangeEventStatusMutation,
   ),
 });