Drizzle Team•2y ago

Extracting literal values from Drizzle enums

I'm trying to make a zod enum schema from the values of a Drizzle enum I've created. I've looked through several other posts trying to do the same thing and it's unclear to me how to do this, particularly for mysqlEnum. The most promising way came from inspecting the enums at runtime. I found that I could access the values, just as I wanted, at myEnum.config.enumValues. The only problem is that Typescript declares config protected and I get type errors.

4 Replies

Angelelz•15mo ago

Do you want the enum as a type, as a ZodType or as a runtime value?

PapaFinnOP•14mo ago

I’d be curious to know how to do all of the above though I was specifically asking about creating a zod schema you parse with.

Angelelz•14mo ago

For mysql it's a little easier than pg. I have a couple enums in my tables and I declare them outside the table like this:

const userRole = ['admin', 'user'] as const // <-- as const here is very important
type UserRole = typeof userRole[number] // <-- You get the type like this

const userRole = ['admin', 'user'] as const // <-- as const here is very important
type UserRole = typeof userRole[number] // <-- You get the type like this

^ That's how you get the runtime value and the type

Angelelz•14mo ago

You can see here how to get the ZodType: https://orm.drizzle.team/docs/zod

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Extracting literal values from Drizzle enums