Development to testing

src/draw/coordinate.entity.ts

@@ -4,17 +4,24 @@ import {
   PrimaryGeneratedColumn,
   ManyToOne,
   CreateDateColumn,
+  OneToMany,
 } from 'typeorm';
 
 import { GameEntity } from '../game/game.entity';
 import { FactionEntity } from '../faction/faction.entity';
 
+//////////////////////////////////////////////////////////////////////
+/// Entities for different drawings in game and their histories    ///
+//////////////////////////////////////////////////////////////////////
+
 @Entity('MapDrawing')
 export class MapDrawingEntity {
   @PrimaryGeneratedColumn('uuid') mapDrawingId: string;
   @Column({ type: 'bool', nullable: true }) drawingIsActive: boolean;
   @Column({ type: 'json', nullable: true }) data: JSON;
 
+  // When Faction or game that has the drawing in question is deleted from 
+  // the database, the drawing is also deleted
   @ManyToOne(type => FactionEntity, faction => faction.mapDrawings, {
     onDelete: 'CASCADE',
   })
@@ -38,10 +45,11 @@ export class MapDrawingEntity {
 @Entity('MapDrawingHistory')
 export class MapDrawingHistoryEntity {
   @PrimaryGeneratedColumn('uuid') mapDrawingHistoryId: string;
-  @CreateDateColumn() timestamp: Date;
+  @Column('float') timestamp: number;
   @Column('bool') drawingIsActive: boolean;
   @Column('json') data: JSON;
 
+  // If drawing is deleted, it's histories are deleted also
   @ManyToOne(() => MapDrawingEntity, mapDrawing => mapDrawing.mapDrawingId, {
     onDelete: 'CASCADE',
   })