refactor: Use related query from objectionjs for mutations

packages/backend/src/graphql/mutations/update-flow.ts

@@ -1,33 +1,38 @@
 import { GraphQLInt, GraphQLString, GraphQLNonNull } from 'graphql';
-import Flow from '../../models/flow';
 import flowType from '../types/flow';
 import RequestWithCurrentUser from '../../types/express/request-with-current-user';
 
 type Params = {
-  id: number,
-  name: string
-}
-const updateFlowResolver = async (params: Params, req: RequestWithCurrentUser) => {
-  let flow = await Flow.query().findOne({
-    user_id: req.currentUser.id,
-    id: params.id
-  }).throwIfNotFound();
+  id: number;
+  name: string;
+};
+const updateFlowResolver = async (
+  params: Params,
+  req: RequestWithCurrentUser
+) => {
+  let flow = await req.currentUser
+    .$relatedQuery('flows')
+    .findOne({
+      id: params.id,
+    })
+    .throwIfNotFound();
 
   flow = await flow.$query().patchAndFetch({
     ...flow,
-    ...params
-  })
+    ...params,
+  });
 
   return flow;
-}
+};
 
 const updateFlow = {
   type: flowType,
   args: {
     id: { type: GraphQLNonNull(GraphQLInt) },
-    name: { type: GraphQLNonNull(GraphQLString) }
+    name: { type: GraphQLNonNull(GraphQLString) },
   },
-  resolve: (_: any, params: Params, req: RequestWithCurrentUser) => updateFlowResolver(params, req)
+  resolve: (_: any, params: Params, req: RequestWithCurrentUser) =>
+    updateFlowResolver(params, req),
 };
 
 export default updateFlow;