Change User default validation in Loopback

Question

I'm developping a Loopback application extending base User model to UserCode model where each user is identified by an email plus a code fields.

So that a user can register with the same email twice but with different code.

I've seen that in node_modules/loopback/common/models/user.js at line 691 there is:

UserModel.validatesUniquenessOf('email', {message: 'Email already exists'});

I want to delete this restriction/validation but without change loopback code, of course.

How can I do it? Maybe in the boot script I can loop through all validation and delete this one?

Answer 1

Figured it out

In this case you need to remove the default validations set by the User model

common/models/userCode.js

module.exports = function(UserCode){
   //Add this line and it will start receiving multiple email.
   delete UserCode.validations.email;
}

Also you can play with the required:true|false property to make any default defined property required or not.

common/models/userCode.json

{
  "name": "UserCode",
  "base": "User",
  "idInjection": true,
  "properties": {
    "password": {
      "type": "string",
      "required": true
    },
    ....
    ....
}