help with drizzle-zod with jsonb column

I have this table definition:

interface Address {
  street: string
  number: string
  complement: string
  neighborhood: string
  city: string
  state: string
  zipcode: string
}

export const customerTable = pgTable("customer", {
  id: text("id").primaryKey(),
  userId: text("user_id")
    .notNull()
    .references(() => userTable.id),
  addresses: jsonb("addresses").$type<Address[]>().notNull(),
})

interface Address {
  street: string
  number: string
  complement: string
  neighborhood: string
  city: string
  state: string
  zipcode: string
}

export const customerTable = pgTable("customer", {
  id: text("id").primaryKey(),
  userId: text("user_id")
    .notNull()
    .references(() => userTable.id),
  addresses: jsonb("addresses").$type<Address[]>().notNull(),
})

then I use drizzle-zod to create a type from that schema:

const tableSchema = createInsertSchema(customerTable)

export type Customer = z.infer<typeof tableSchema>

const tableSchema = createInsertSchema(customerTable)

export type Customer = z.infer<typeof tableSchema>

but the addresses property is a json type, not an array of Address. Is there a way to change that behavior?

2 Replies

Rafael•8mo ago

It can't do that, the library and Zod only know about concrete information, and types aren't concrete. The only concrete information is Json. For custom columns, it uses z.any (https://github.com/drizzle-team/drizzle-orm/blob/main/drizzle-zod/src/index.ts#L205). But you can override it

const addressSchema = z.object({
  ...
})

type Address = z.infer<typeof addressSchema>

const tableSchema = createInsertSchema(customerTable, {
  addresses: z.array(addressSchema)
})

export type Customer = z.infer<typeof tableSchema>

const addressSchema = z.object({
  ...
})

type Address = z.infer<typeof addressSchema>

const tableSchema = createInsertSchema(customerTable, {
  addresses: z.array(addressSchema)
})

export type Customer = z.infer<typeof tableSchema>

Gabriel Lucena•8mo ago

appreciate that, Rafael! thanks, man

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help with drizzle-zod with jsonb column