UUID is not auto generated

Hi,

I have one issue that would like to ask here.

If I set the id to INTEGER it will be auto-generated, but if I use UUID it’s not. This is my model.

class User extends Model {
  static table = 'users'
  static timestamps = true
  static fields = {
    id: {
      type: DataTypes.UUID,
      primaryKey: true,
    },
    ....
}

Do I miss anything to have this auto-generated?

[eveningkid]

Hi autsada,

For now, UUID fields are not auto-generated indeed.

I just found that Deno has a uuid helper in the standard library, so here’s how you can do it:

import { v4 } from "https://deno.land/std@0.84.0/uuid/mod.ts";

class User extends Model {
  static table = 'users';
  static timestamps = true;
  
  static fields = {
    id: {
      type: DataTypes.UUID,
      primaryKey: true,
    },
  };
  
  static defaults = {
    id: () => v4.generate(),
    // id: v4.generate, should work as well
  };
}

Let me know if this works for you.

Keep in touch

[royletron]

I feel like I might have won an award for the weirdest bug I have ever see, consider the following user model:

export class User extends Model {
  static table = "users";
  static timestamps = true;

  static fields = {
    id: { primaryKey: true, type: DataTypes.UUID },
    provider: DataTypes.STRING,
    providerUserId: DataTypes.STRING,
    displayName: DataTypes.STRING,
    email: DataTypes.STRING,
  };

  static defaults = {
    id: v4.generate,
  };
}

On running I get a TS error:

Uncaught (in promise) PostgresError: invalid input syntax for type uuid: "function generate() {
    const rnds = crypto.getRandomValues(new Uint8Array(16));
    rnds[6] = (rnds[6] & 0x0f) | 0x40;
    rnds[8] = (rnds[8] & 0x3f) | 0x80;
    return bytesToUuid(rnds);
}"

If I flip the ID type to DataTypes.STRING - it boots up fine, but then when a row is added to the DB the ID is

function generate() {
    const rnds = crypto.getRandomValues(new Uint8Array(16));
    rnds[6] = (rnds[6] & 0x0f) | 0x40;
    rnds[8] = (rnds[8] & 0x3f) | 0x80;
    return bytesToUuid(rnds);
}

It’s evaling the string of the function…?