Updated a bunch of optional collumns to be nullable

ref #11 #13

src/models/GroupContact.ts

@@ -5,6 +5,7 @@ import {
   IsNotEmpty,
   IsOptional,
   IsPhoneNumber,
+  IsPositive,
   IsString,
 } from "class-validator";
 import { Address } from "./Address";
@@ -36,7 +37,7 @@ export class GroupContact {
    * The contact's middle name.
    * Optional
    */
-  @Column()
+  @Column({nullable: true})
   @IsOptional()
   @IsString()
   middlename?: string;
@@ -45,7 +46,7 @@ export class GroupContact {
    * The contact's last name.
    */
   @Column()
-  @IsOptional()
+  @IsNotEmpty()
   @IsString()
   lastname: string;
 
@@ -61,7 +62,7 @@ export class GroupContact {
    * The contact's phone number.
    * Optional
    */
-  @Column()
+  @Column({nullable: true})
   @IsOptional()
   @IsPhoneNumber("DE")
   phone?: string;
@@ -70,7 +71,7 @@ export class GroupContact {
    * The contact's email address.
    * Optional
    */
-  @Column()
+  @Column({nullable: true})
   @IsOptional()
   @IsEmail()
   email?: string;