Drizzle Team•9mo ago

Is there a better way to access enum types?

// the schema
export const MarketplaceIntegrationType = pgEnum('MarketplaceIntegrationType', [
  'Amazon',
  'Walmart',
  'Etsy',
  'Shopify'
]);
type: MarketplaceIntegrationType('type').notNull()

// the code
let integrationType: typeof marketplaceIntegrations.$inferSelect.type;

// the schema
export const MarketplaceIntegrationType = pgEnum('MarketplaceIntegrationType', [
  'Amazon',
  'Walmart',
  'Etsy',
  'Shopify'
]);
type: MarketplaceIntegrationType('type').notNull()

// the code
let integrationType: typeof marketplaceIntegrations.$inferSelect.type;

is there a better way to do this other than manually creating a type to use everywhere? its not very ergonomic to type this out like that i can also do something like

(typeof MarketplaceIntegrationType.enumValues)[number]

(typeof MarketplaceIntegrationType.enumValues)[number]

but this sucks too

4 Replies

Angelelz•9mo ago

What I do is I create the array as const, create the type from it, and then pass it to the pgEnum function

const marketPlaceIntegrationTypes = [
  'Amazon',
  'Walmart',
  'Etsy',
  'Shopify'
] as const;
type MarketPlaceIntegrationTypes = typeof marketPlaceIntegrationTypes;
export const MarketplaceIntegrationType = pgEnum('MarketplaceIntegrationType', marketPlaceIntegrationTypes);

const marketPlaceIntegrationTypes = [
  'Amazon',
  'Walmart',
  'Etsy',
  'Shopify'
] as const;
type MarketPlaceIntegrationTypes = typeof marketPlaceIntegrationTypes;
export const MarketplaceIntegrationType = pgEnum('MarketplaceIntegrationType', marketPlaceIntegrationTypes);

jakeleventhal•9mo ago

then how do you get the types in code? just MarketplaceIntegrationTypes[number]

Angelelz•9mo ago

Oh yeah, forgot that, the type should have [number] at the end

Amur•2w ago

coming back to this conversation as i feel like working with enums is still annoying as you mentioned above we can do this workaround to get the types but what if i have a function and i want to check if the maketPlaceIntegration is Amazon with a typescript enum i would have something like this but this is not possible with pgEnum

const isAmazon = (integration: MarketPlaceIntegrationTypes) => {
  if(integration === MarketPlaceIntegrationTypes.Amazon){
    // do something
  }
}

const isAmazon = (integration: MarketPlaceIntegrationTypes) => {
  if(integration === MarketPlaceIntegrationTypes.Amazon){
    // do something
  }
}

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Is there a better way to access enum types?