public commit

app/__test__/data/specs/JoinBuilder.spec.ts

@@ -0,0 +1,43 @@
+import { afterAll, describe, expect, test } from "bun:test";
+import { Entity, EntityManager, ManyToOneRelation, TextField } from "../../../src/data";
+import { JoinBuilder } from "../../../src/data/entities/query/JoinBuilder";
+import { getDummyConnection } from "../helper";
+
+const { dummyConnection, afterAllCleanup } = getDummyConnection();
+afterAll(afterAllCleanup);
+
+describe("[data] JoinBuilder", async () => {
+   test("missing relation", async () => {
+      const users = new Entity("users", [new TextField("username")]);
+      const em = new EntityManager([users], dummyConnection);
+
+      expect(() =>
+         JoinBuilder.addClause(em, em.connection.kysely.selectFrom("users"), users, ["posts"])
+      ).toThrow('Relation "posts" not found');
+   });
+
+   test("addClause: ManyToOne", async () => {
+      const users = new Entity("users", [new TextField("username")]);
+      const posts = new Entity("posts", [new TextField("content")]);
+      const relations = [new ManyToOneRelation(posts, users, { mappedBy: "author" })];
+      const em = new EntityManager([users, posts], dummyConnection, relations);
+
+      const qb = JoinBuilder.addClause(em, em.connection.kysely.selectFrom("users"), users, [
+         "posts"
+      ]);
+
+      const res = qb.compile();
+      console.log("compiled", res.sql);
+
+      /*expect(res.sql).toBe(
+         'select from "users" inner join "posts" on "posts"."author_id" = "users"."id" group by "users"."id"',
+      );*/
+
+      const qb2 = JoinBuilder.addClause(em, em.connection.kysely.selectFrom("posts"), posts, [
+         "author"
+      ]);
+
+      const res2 = qb2.compile();
+      console.log("compiled2", res2.sql);
+   });
+});