Support projecting enums

[jasonkuhrt]

Perceived Problem

It is currently not possible to project enums from Prisma schema into the the GraphQL API.

Example:

enum ProjectRole {
  admin
  developer
  collaborator
  viewer
}

enumType({
  name: 'ProjectRole',
  members: ['admin', 'developer', 'collaborator', 'viewer'],
})

Ideas / Proposed Solution(s)

Generate representations of Prisma Schema enums.

import { ProjectRole } from 'nexus-prisma'

ProjectRole.name // 'ProjectRole'
ProjectRole.members // ['admin', 'developer', 'collaborator', 'viewer']

enumType(ProjectRole),

It might also be handy to have access to some of the individual pieces of data.

import { ProjectRole } from 'nexus-prisma/data'

ProjectRole.admin           // 'admin'
ProjectRole.developer       // 'developer'
ProjectRole.collaborator    // 'collaborator'
ProjectRole.viewer          // 'viewer'

Similarly it might be handy to have access to the types:

import type { ProjectRole } from 'nexus-prisma/types'

type a = ProjectRole.Admin           // 'admin'
type b = ProjectRole.Developer       // 'developer'
type c = ProjectRole.Collaborator    // 'collaborator'
type d = ProjectRole.Viewer          // 'viewer'

type z = ProjectRole.$Members        //  ProjectRole.Admin | ProjectRole.Developer | ProjectRole.Collaborator | ProjectRole.Viewer

[jasonkuhrt]

It might also be handy to have access to some of the individual pieces of data.
Similarly it might be handy to have access to the types:

Did not do this for now. Revisit once we have a concrete use-case.

[nmquebb]

This solution doesn't cover all use cases and lacks some features available in enumType but overall has been working out ok for me thus far. Figured I'd drop it here incase others come across this looking for a quick hacky fix.

import { Prisma } from ".prisma/client";
import { enumType } from "nexus";

export const enumTypes = Prisma.dmmf.datamodel.enums.map((e) => {
  return enumType({
    name: e.name,
    members: e.values,
  });
});

[jasonkuhrt]

@kidqueb what is missing? https://github.com/prisma/nexus-prisma#project-enums