feat(db): support drizzle orm v1 & relations v2 by Sqh3rd · Pull Request #825 · nuxt-hub/core

Sqh3rd · 2026-02-09T21:59:33Z

Adds support for drizzle relations v2 introduced in drizzle v1-beta

Closes #764

vercel · 2026-02-09T21:59:42Z

@Sqh3rd is attempting to deploy a commit to the NuxtLabs Team on Vercel.

A member of the Team first needs to authorize it.

branislavjuhaas · 2026-02-10T07:30:38Z

I love this concept!

Sqh3rd · 2026-02-11T11:05:17Z

Just noticed that the type definition I added does not properly handle the case when there's multiple relationParts defined. I'll take a look today and tomorrow in order to fix that

RihanArfan

Thanks for this PR! 💚 Left one small comment, but otherwise looks great.

RihanArfan · 2026-02-11T16:49:37Z

Right now we're waiting for the Drizzle Team to add API support for Drizzle Studio MySQL and SQLite in v1.

Then we'll need to fix a bug with nuxt db squash now that there's no more journal, and document the requireddrizzle-kit up command for upgrading.

Sqh3rd · 2026-02-15T10:21:32Z

thanks a lot for your support! If you need/want any support from me please ping me, otherwise I'll mark this PR in my mind as "basically completed" 😄

adamkasper · 2026-02-16T09:53:16Z

@RihanArfan hey, could you enable https://pkg.pr.new for this PR? :)

pkg-pr-new · 2026-02-16T11:06:57Z

npm i https://pkg.pr.new/@nuxthub/core@825

commit: 55e4f03

…hub-core into add-support-for-relations-v2

adamkasper · 2026-05-10T14:29:06Z

Hey @Sqh3rd, just a heads up — Drizzle v1.0.0-rc.1 shipped a breaking change to the casing API (it's no longer set on the db instance but on the table/view/schema), so the casing option in the generated drizzle({...}) templates will need a rework before this can be merged. 🙂

Sqh3rd#1

feat(db): upgrade drizzle to v1 rc.2

…hub-core into add-support-for-relations-v2

Sqh3rd · 2026-05-12T15:03:28Z

Hey @Sqh3rd, just a heads up — Drizzle v1.0.0-rc.1 shipped a breaking change to the casing API (it's no longer set on the db instance but on the table/view/schema), so the casing option in the generated drizzle({...}) templates will need a rework before this can be merged. 🙂

Sqh3rd#1

Hey, thanks a lot for supporting @adamkasper. I'm starting to think that with the increases in template modification it may make more sense to use a templating engine (e.g. Mustache) to handle these things. Would it be fine to introduce sth like that? I'm not a 100% certain yet, whether that'd make it better. I'll try to write a poc in a few hours to get a feel for how that could look.

Sqh3rd · 2026-05-19T13:28:32Z

update regarding me wanting to introduce mustache: It seems that this is quite promising, but I don't want to further complicate this PR. I'll introduce another PR during this/next week, to tackle this. :)

Sqh3rd · 2026-05-22T23:00:57Z

PR for introducing mustache is open as draft, fyi: #900

onmax

I tested the pkg.pr.new builds against Nuxt Better Auth's generated auth schema: repro. The SQLite/libSQL path passes, but I found the remaining driver and migration issues below

If there is anything I can do to move this PR forward let me know :)

onmax · 2026-08-20T10:48:02Z

+type SchemaType = typeof schema
+export type Tables = ExtractTablesFromSchema<SchemaType>
+type RelationsKeys = keyof SchemaType extends infer Key ?  Key extends keyof SchemaType ?  SchemaType[Key] extends ExtractTablesWithRelationsParts<any, any> ?  Key : never : never : never
+type FlatRelations = { [Key in keyof SchemaType[RelationsKeys]]: keyof SchemaType extends infer T ? T extends keyof SchemaType ? Key extends keyof SchemaType[T] ? SchemaType[T][Key] : never : never : never }


SchemaType[RelationsKeys] is a union, so keyof keeps only the keys shared by every relation file. With separate usersRelations and postsRelations, that can become never, and with queries stop typechecking. Turning the union into an intersection and adding a two-file type test would cover this.

onmax · 2026-08-20T10:48:02Z

    if (!url) throw new Error('DATABASE_URL, POSTGRES_URL, or POSTGRESQL_URL required')
    const sql = neon(url)
-    _db = drizzle(sql, { schema${casingOption} })`
+    _db = drizzle(sql, { ${casingOption}${relationsOption} })`,


relationsOption already includes the comma, so Neon, D1, and D1 HTTP generate { , relations }. These paths also lose schema when v2 is off. Keeping schema in all three templates and adding a syntax check for each driver would cover both cases.

ah thx, do you think it'd be reasonable to get some reviews/progress on #900 first? I'm finding it hard to correctly adapt the generated files with the current generation logic :)

If that's not reasonable, I'll do the adaptations anyways tho

Good point, I am not a official maintainer of this repo, so I don't have a take.

onmax · 2026-08-20T10:48:02Z

 * The ${driver} database client.
 */
-export const db: ReturnType<typeof drizzleCore<typeof schema>>
+export const db: ReturnType<typeof drizzleCore<${useRelationsV2 ? 'typeof schema, typeof relations' : 'typeof schema'}>>


This generic order works for SQLite and MySQL, but not the RC.2 PostgreSQL drivers. PGlite, postgres-js, and Neon HTTP need drizzleCore<typeof relations> here.

onmax · 2026-08-20T10:48:02Z

    "aws4fetch": "^1.0.20",
-    "drizzle-kit": "^0.31.9",
-    "drizzle-orm": "^0.45.2",
+    "drizzle-kit": "1.0.0-rc.2",


drizzle-kit@1.0.0-rc.2 no longer exports drizzle-kit/api, but Studio still imports it in src/devtools.ts and launch-studio.post.dev.ts. Studio now fails with ERR_PACKAGE_PATH_NOT_EXPORTED. The imports need the dialect-specific api-* entry points.

onmax · 2026-08-20T10:48:02Z

@@ -1,20 +0,0 @@
-{


nuxt db squash still reads meta/_journal.json, so removing these journals breaks the command. Supporting the v1 layout and documenting the drizzle-kit up step would keep it working.

onmax · 2026-08-20T10:48:02Z

      : generateLazyDbTemplate(
-          `import { drizzle } from 'drizzle-orm/${driver}'`,
-          `    const hyperdrive = process.env.${bindingName} || globalThis.__env__?.${bindingName} || globalThis.${bindingName}
+      `import { drizzle } from 'drizzle-orm/${driver}'${relationsImport}`,


pnpm lint fails here

Sqh3rd added 2 commits February 9, 2026 22:57

Introduce support for drizzle relations v2

e1bed03

Update lockfile

d42bab9

RihanArfan self-requested a review February 10, 2026 03:31

RihanArfan added 3 commits February 10, 2026 14:41

feat: auto enable useRelationsV2

75e09cd

fix(db): correct template variables in drizzle client generation

5fb6451

chore: update comments

2798d6c

RihanArfan changed the title ~~Add support for relations v2~~ feat(db): support drizzle orm v1 & relations v2 Feb 10, 2026

RihanArfan and others added 2 commits February 10, 2026 15:39

chore: improvements

bcb1f0a

Merge branch 'nuxt-hub:main' into add-support-for-relations-v2

bb15745

Sqh3rd and others added 3 commits February 11, 2026 13:58

Fix Relation Types

4a91887

docs: document relations v2

8f80142

chore: use @nuxthub/db/schema

13c3604

RihanArfan reviewed Feb 11, 2026

View reviewed changes

Comment thread playground/server/db/schema/author.postgresql.ts Outdated

Fix copy pasta oversight

8af4897

Merge branch 'main' into add-support-for-relations-v2

4f9935d

Merge branch 'main' into add-support-for-relations-v2

55e4f03

adamkasper mentioned this pull request Feb 17, 2026

drizzle orm v1 & relations v2 support nuxt-modules/better-auth#167

Open

Sqh3rd added 6 commits February 18, 2026 10:14

Explicitly filter for relation keys in types

bf0fd50

Merge branch 'add-support-for-relations-v2' of github.com:Sqh3rd/nuxt…

7af4582

…hub-core into add-support-for-relations-v2

Filter for relation keys in mjs

d68868f

Merge branch 'main' into add-support-for-relations-v2

8451114

Expose relations in separate file

83efd2a

Merge branch 'main' into add-support-for-relations-v2

b5366e7

Sqh3rd added 3 commits February 27, 2026 20:52

Update docs

c33d16f

Merge branch 'main' into add-support-for-relations-v2

3ca2728

Merge branch 'main' into add-support-for-relations-v2

76842fc

adamkasper and others added 3 commits May 10, 2026 16:56

feat(db): upgrade drizzle to v1 rc.2

8c3838c

Merge pull request #1 from adamkasper/add-support-for-relations-v2

a0066ac

feat(db): upgrade drizzle to v1 rc.2

Merge branch 'add-support-for-relations-v2' of github.com:Sqh3rd/nuxt…

081a7a9

…hub-core into add-support-for-relations-v2

Sqh3rd added 2 commits May 23, 2026 01:03

Merge branch 'main' into add-support-for-relations-v2

d9fe3c1

Merge branch 'main' into add-support-for-relations-v2

52d3a59

onmax reviewed Aug 20, 2026

View reviewed changes

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Sqh3rd commented Feb 9, 2026 •

edited by RihanArfan

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