Change ObjectViewPipe to inject validator instead of manually creating

Author: CarsonF

src/components/changeset/changeset.module.ts

@@ -4,13 +4,15 @@ import { ChangesetAwareResolver } from './changeset-aware.resolver';
 import { ValidateChangesetEditablePipe } from './changeset.arg';
 import { ChangesetRepository } from './changeset.repository';
 import { ChangesetResolver } from './changeset.resolver';
+import { ObjectViewPipe } from './dto';
 import { EnforceChangesetEditablePipe } from './enforce-changeset-editable.pipe';
 
 @Module({
   providers: [
     ChangesetAwareResolver,
     ChangesetResolver,
     ChangesetRepository,
+    ObjectViewPipe,
     { provide: APP_PIPE, useClass: EnforceChangesetEditablePipe },
     ValidateChangesetEditablePipe,
   ],

src/components/changeset/dto/changeset.args.ts

@@ -1,4 +1,4 @@
-import { PipeTransform } from '@nestjs/common';
+import { Injectable, PipeTransform } from '@nestjs/common';
 import { Args, ArgsType } from '@nestjs/graphql';
 import { ID, IdField, ObjectView } from '~/common';
 import { ValidationPipe } from '~/core/validation';
@@ -20,9 +20,12 @@ export type IdsAndView = ChangesetIds & { view: ObjectView };
 export const IdsAndViewArg = () =>
   Args({ type: () => ChangesetIds }, ObjectViewPipe);
 
-class ObjectViewPipe implements PipeTransform {
+@Injectable()
+export class ObjectViewPipe implements PipeTransform {
+  constructor(private readonly validator: ValidationPipe) {}
+
   async transform({ id, changeset }: ChangesetIds) {
-    await new ValidationPipe().transform(
+    await this.validator.transform(
       { id, changeset },
       {
         metatype: ChangesetIds,