Support for TypeORM 0.3

[abidon]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today we used patch-package to patch @nestjs-query/query-typeorm@0.30.0 for the project we are working on. This patch made our codebase work with TypeORM 0.3.

---

Apparently, with TypeORM 0.3, this.repo.manager.getRepository(relationMeta.type).target return a string instead of the entity class in some cases.

// (1) in TodoEntity.ts
@ManyToOne(() => ProjectEntity)
project: ProjectEntity;

// (2) in ProjectEntity.ts
@OneToMany('TodoEntity', (todo) => todo.project
todos: TodoEntity[]

1. When specifying a typeFunction, repository.target equals the ProjectEntity class
2. ⚠️ When specifying a string, repository.target is the 'TodoEntity' string, not class

This behaviour was introduced in TypeORM 0.3 and breaks nestjs-query, while TypeORM 0.2 always returned the entity class (at least in our use cases).

---

Here is the diff that solved our problem:

diff --git a/node_modules/@nestjs-query/query-typeorm/dist/src/services/relation-query.service.js b/node_modules/@nestjs-query/query-typeorm/dist/src/services/relation-query.service.js
index 0d46f16..8d06fee 100644
--- a/node_modules/@nestjs-query/query-typeorm/dist/src/services/relation-query.service.js
+++ b/node_modules/@nestjs-query/query-typeorm/dist/src/services/relation-query.service.js
@@ -245,7 +245,7 @@ class RelationQueryService {
     getRelationEntity(relationName) {
         const relationMeta = this.getRelationMeta(relationName);
         if (typeof relationMeta.type === 'string') {
-            return this.repo.manager.getRepository(relationMeta.type).target;
+            return this.repo.manager.connection.entityMetadatas.find(em => em.targetName == relationMeta.type).target;
         }
         return relationMeta.type;
     }

This issue body was partially generated by patch-package.

[TriPSs]

TypeORM v3 support is now released in the alpha version of my fork together with all the fixes from here

[henry-huynh-3508]

TypeORM v3 support is now released in the alpha version of my fork together with all the fixes from here

Thanks TriPSs for keeping fixing the project bugs. The project owner should have transferred things over if he no longer continues to maintain this project, what a shame that it's a good project.

[dzcpy]

Any updates?