Drizzle Team•5mo ago

Circular Dependency Hell

Is it just me or does using the relations API result in a bunch of circular deps that aren't lazily instantiated. For example, a foreign key reference is a function.

workspaceId: cuid2('workspace_id')
  .notNull()
  .references(() => workspace.id)

workspaceId: cuid2('workspace_id')
  .notNull()
  .references(() => workspace.id)

For relations, it's something like this: workspace: one(workspace),. I feel like everything needs to be lazily instantiated because I'm eating alive by: Cannot read properties of undefined (reading 'Symbol(drizzle:Name)'). I've spent 20-30 hours fighting it and I think I'm just going to delete the relations API although even though I like the DX.

6 Replies

Marcus•5mo ago

I guess it's just me, sad!

MAST•5mo ago

Oh, I think you need to alias the workspace and then reference it. For example if the table is called workspaces you can do this:

const workspaces = pgTable('workspaces', {
  workspaceId: cuid2('workspace_id')
    .notNull()
    .references(() => aliasedWorkspace.id),
});
const aliasedWorkspace = alias(workspaces, "aliased_workspace");

const workspaces = pgTable('workspaces', {
  workspaceId: cuid2('workspace_id')
    .notNull()
    .references(() => aliasedWorkspace.id),
});
const aliasedWorkspace = alias(workspaces, "aliased_workspace");

I remember seeing this in the old docs.

MAST•5mo ago

Oh, found this in the new docs:

MAST•5mo ago

This should probably fix your problem.

MAST•5mo ago

https://orm.drizzle.team/docs/indexes-constraints#foreign-key

Drizzle ORM - Indexes & Constraints

Drizzle ORM is a lightweight and performant TypeScript ORM with developer experience in mind.

Marcus•5mo ago

I have that for types on a self referencing type. My issue is a runtime error when two different models reference each other. Since there no closure on relations the value is undefined since it’s hoisted to the top on compilation

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Circular Dependency Hell