refactor: Use related query from objectionjs for mutations

packages/backend/src/graphql/mutations/delete-connection.ts

@@ -1,26 +1,32 @@
 import { GraphQLInt, GraphQLNonNull, GraphQLBoolean } from 'graphql';
-import Connection from '../../models/connection';
 import RequestWithCurrentUser from '../../types/express/request-with-current-user';
 
 type Params = {
-  id: number,
-  data: object
-}
-const deleteConnectionResolver = async (params: Params, req: RequestWithCurrentUser) => {
-  await Connection.query().delete().findOne({
-    user_id: req.currentUser.id,
-    id: params.id
-  }).throwIfNotFound();
+  id: number;
+  data: object;
+};
+const deleteConnectionResolver = async (
+  params: Params,
+  req: RequestWithCurrentUser
+) => {
+  await req.currentUser
+    .$relatedQuery('connections')
+    .delete()
+    .findOne({
+      id: params.id,
+    })
+    .throwIfNotFound();
 
   return;
-}
+};
 
 const deleteConnection = {
   type: GraphQLBoolean,
   args: {
-    id: { type: GraphQLNonNull(GraphQLInt) }
+    id: { type: GraphQLNonNull(GraphQLInt) },
   },
-  resolve: (_: any, params: Params, req: RequestWithCurrentUser) => deleteConnectionResolver(params, req)
+  resolve: (_: any, params: Params, req: RequestWithCurrentUser) =>
+    deleteConnectionResolver(params, req),
 };
 
 export default deleteConnection;