Switched emails to being mandetory for users

ref #93

src/models/actions/create/CreateUser.ts

@@ -1,9 +1,9 @@
 import * as argon2 from "argon2";
-import { IsBoolean, IsEmail, IsOptional, IsPhoneNumber, IsString, IsUrl } from 'class-validator';
+import { IsBoolean, IsEmail, IsNotEmpty, IsOptional, IsPhoneNumber, IsString, IsUrl } from 'class-validator';
 import { getConnectionManager } from 'typeorm';
 import * as uuid from 'uuid';
 import { config } from '../../../config';
-import { UsernameOrEmailNeededError } from '../../../errors/UserErrors';
+import { UserEmailNeededError } from '../../../errors/UserErrors';
 import { UserGroupNotFoundError } from '../../../errors/UserGroupErrors';
 import { User } from '../../entities/User';
 import { UserGroup } from '../../entities/UserGroup';
@@ -33,7 +33,7 @@ export class CreateUser {
 
     /**
      * The new user's username.
-     * You have to provide at least one of: {email, username}.
+     * You have to provide a email addres, so this is optional.
      */
     @IsOptional()
     @IsString()
@@ -41,12 +41,11 @@ export class CreateUser {
 
     /**
      * The new user's email address.
-     * You have to provide at least one of: {email, username}.
      */
     @IsEmail()
     @IsString()
-    @IsOptional()
-    email?: string;
+    @IsNotEmpty()
+    email: string;
 
     /**
      * The new user's phone number.
@@ -92,8 +91,8 @@ export class CreateUser {
     public async toEntity(): Promise<User> {
         let newUser: User = new User();
 
-        if (this.email === undefined && this.username === undefined) {
-            throw new UsernameOrEmailNeededError();
+        if (!this.email) {
+            throw new UserEmailNeededError();
         }
 
         newUser.email = this.email