Drizzle Team•12mo ago

There's not enough information to infer relation

I am trying to use drizzle studio but I'm running into the following issue, There is not enough information to infer relation "__public__.collectionsTable.tokens". Here's a simplified version of the schema.

export const tokensTable = mysqlTable(
    'tokens',
    {
        tokenId: varchar('token_id', { length: 255           }).notNull(),

        metadataName: varchar('metadata_name', {               length: 255 }),
        metadataDescription:         text('metadata_description'),
        collectionId: varbinary('collection_id', {
            length: 42,
        }).notNull(),

        createdAt: timestamp('created_at', {
            mode: 'string',
        }).defaultNow(),
        updatedAt: timestamp('updated_at', {
            mode: 'string',
        }).defaultNow(),
    }
)

export type Token = InferSelectModel<typeof tokensTable>
export type TokenInsert = InferInsertModel<typeof tokensTable>

export const tokensRelations = relations(tokensTable, ({ one }) => ({
    collection: one(collectionsTable, {
        fields: [tokensTable.collectionId],
        references: [collectionsTable.id],
    }),
}))

export const collectionsTable = mysqlTable(
    'collections',
    {
        id: varbinary('id', {
            length: 42,
        }).primaryKey(),

        name: varchar('name', {
            length: 255,
        }).notNull(),
        description: text('description'),
        createdAt: timestamp('created_at', {
            mode: 'string',
        }).defaultNow(),
        updatedAt: timestamp('updated_at', {
            mode: 'string',
        }).defaultNow(),
    }
)

export type Collection = InferSelectModel<typeof collectionsTable>
export type CollectionInsert = InferInsertModel<typeof collectionsTable>

export const collectionsRelations = relations(collectionsTable, ({ one, many }) => ({
    tokens: many(tokensTable, {
        relationName: 'collectionTokens',
    }),
}))

export const tokensTable = mysqlTable(
    'tokens',
    {
        tokenId: varchar('token_id', { length: 255           }).notNull(),

        metadataName: varchar('metadata_name', {               length: 255 }),
        metadataDescription:         text('metadata_description'),
        collectionId: varbinary('collection_id', {
            length: 42,
        }).notNull(),

        createdAt: timestamp('created_at', {
            mode: 'string',
        }).defaultNow(),
        updatedAt: timestamp('updated_at', {
            mode: 'string',
        }).defaultNow(),
    }
)

export type Token = InferSelectModel<typeof tokensTable>
export type TokenInsert = InferInsertModel<typeof tokensTable>

export const tokensRelations = relations(tokensTable, ({ one }) => ({
    collection: one(collectionsTable, {
        fields: [tokensTable.collectionId],
        references: [collectionsTable.id],
    }),
}))

export const collectionsTable = mysqlTable(
    'collections',
    {
        id: varbinary('id', {
            length: 42,
        }).primaryKey(),

        name: varchar('name', {
            length: 255,
        }).notNull(),
        description: text('description'),
        createdAt: timestamp('created_at', {
            mode: 'string',
        }).defaultNow(),
        updatedAt: timestamp('updated_at', {
            mode: 'string',
        }).defaultNow(),
    }
)

export type Collection = InferSelectModel<typeof collectionsTable>
export type CollectionInsert = InferInsertModel<typeof collectionsTable>

export const collectionsRelations = relations(collectionsTable, ({ one, many }) => ({
    tokens: many(tokensTable, {
        relationName: 'collectionTokens',
    }),
}))

In short, each collection can have multiple tokens, but each token can belong to only one collection. I haven't had any issues with this schema for around the 6 months that we've been using it, but we wanted to try out drizzle studio and ran into that issue. The database is running on Planetscale, not sure if that's relevant.

1 Reply

Angelelz•12mo ago

I think your problem is that you have a relationName defined only on one side. You have to either delete it or add it on both sides

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There's not enough information to infer relation