Replace DbSort with new metadata decorator

Author: CarsonF

src/common/db-sort.decorator.ts

@@ -1,6 +1,4 @@
-import { AbstractClassType } from './types';
-
-const DbSortSymbol = Symbol('DbSortSymbol');
+import { createMetadataDecorator } from '@seedcompany/nest';
 
 /**
  * A function given a cypher variable will output cypher to transform it for sorting.
@@ -10,11 +8,7 @@ export type SortTransformer = (value: string) => string;
 /**
  * Customize the way this field is sorted upon.
  */
-export const DbSort = (transformer: SortTransformer) =>
-  Reflect.metadata(DbSortSymbol, transformer);
-
-export const getDbSortTransformer = (
-  type: AbstractClassType<unknown>,
-  property: string,
-): SortTransformer | undefined =>
-  Reflect.getMetadata(DbSortSymbol, type.prototype, property);
+export const DbSort = createMetadataDecorator({
+  types: ['property'],
+  setter: (transformer: SortTransformer) => transformer,
+});

src/core/database/query/sorting.ts

@@ -3,10 +3,7 @@ import { node, Query, relation } from 'cypher-query-builder';
 import { identity } from 'rxjs';
 import { LiteralUnion } from 'type-fest';
 import { MadeEnum, Order, Resource, ResourceShape } from '~/common';
-import {
-  getDbSortTransformer,
-  SortTransformer,
-} from '~/common/db-sort.decorator';
+import { DbSort, SortTransformer } from '~/common/db-sort.decorator';
 import { apoc } from './cypher-functions';
 import { ACTIVE } from './matching';
 
@@ -128,7 +125,7 @@ export const defineSorters = <TResourceStatic extends ResourceShape<any>>(
   matchers: SortMatchers<SortFieldOf<TResourceStatic>>,
 ): DefinedSorters<SortFieldOf<TResourceStatic>> => {
   const fn = ({ sort, order }: Sort<SortFieldOf<TResourceStatic>>) => {
-    const transformer = getDbSortTransformer(resource, sort) ?? identity;
+    const transformer = DbSort.get(resource, sort as string) ?? identity;
     const common = { sort, order, transformer };
 
     const exactCustom = matchers[sort];