Fixed the cirvular import BS

ref #11

src/models/GroupContact.ts

@@ -1,12 +1,86 @@
-import { Entity, OneToMany } from "typeorm";
-import { Participant } from "./Participant";
+import { PrimaryGeneratedColumn, Column, OneToMany, ManyToOne, Entity } from "typeorm";
+import {
+  IsEmail,
+  IsInt,
+  IsNotEmpty,
+  IsOptional,
+  IsPhoneNumber,
+  IsString,
+} from "class-validator";
+import { Address } from "./Address";
+import { Donation } from "./Donation";
 import { RunnerGroup } from "./RunnerGroup";
 
 /**
  * Defines a group's contact.
 */
 @Entity()
-export class GroupContact extends Participant{
+export class GroupContact {
+    /**
+   * Autogenerated unique id (primary key).
+   */
+  @PrimaryGeneratedColumn()
+  @IsOptional()
+  @IsInt()
+  id: number;
+
+  /**
+   * The contact's first name.
+   */
+  @Column()
+  @IsNotEmpty()
+  @IsString()
+  firstname: string;
+
+  /**
+   * The contact's middle name.
+   * Optional
+   */
+  @Column()
+  @IsOptional()
+  @IsString()
+  middlename?: string;
+
+  /**
+   * The contact's last name.
+   */
+  @Column()
+  @IsOptional()
+  @IsString()
+  lastname: string;
+
+  /**
+   * The contact's address.
+   * Optional
+   */
+  @IsOptional()
+  @ManyToOne(() => Address, address => address.participants)
+  address?: Address;
+
+  /**
+   * The contact's phone number.
+   * Optional
+   */
+  @Column()
+  @IsOptional()
+  @IsPhoneNumber("DE")
+  phone?: string;
+
+  /**
+   * The contact's email address.
+   * Optional
+   */
+  @Column()
+  @IsOptional()
+  @IsEmail()
+  email?: string;
+
+  /**
+   * Used to link the contact as the donor of a donation.
+   */
+  @OneToMany(() => Donation, donation => donation.donor)
+  donations: Donation[];
+
   /**
     * Used to link runners to donations.
     */