Cleaned up a load of relations and optional stuff

ref #11

src/models/entities/Address.ts

@@ -1,11 +1,11 @@
-import { Entity, PrimaryGeneratedColumn, Column, OneToMany } from "typeorm";
 import {
   IsInt,
   IsNotEmpty,
   IsOptional,
   IsPostalCode,
-  IsString,
+  IsString
 } from "class-validator";
+import { Column, Entity, OneToMany, PrimaryGeneratedColumn } from "typeorm";
 import { Participant } from "./Participant";
 import { RunnerOrganisation } from "./RunnerOrganisation";
 
@@ -18,14 +18,13 @@ export class Address {
    * Autogenerated unique id (primary key).
    */
   @PrimaryGeneratedColumn()
-  @IsOptional()
   @IsInt()
   id: number;
 
   /**
    * The address's description.
    */
-  @Column({nullable: true})
+  @Column({ nullable: true })
   @IsString()
   @IsOptional()
   description?: string;
@@ -43,7 +42,7 @@ export class Address {
    * The address's second line.
    * Containing optional information.
    */
-  @Column({nullable: true})
+  @Column({ nullable: true })
   @IsString()
   @IsOptional()
   address2?: string;