Add all database tables with relations

software/backend/models/products.model.ts

@@ -0,0 +1,30 @@
+import { Table, Column, Model, ForeignKey, BelongsTo, HasOne } from 'sequelize-typescript';
+import { Categories } from './categories.model';
+import { OrderedItem } from './orderedItem.model';
+
+@Table
+export class Products extends Model {
+  @Column
+  name: string
+
+  @Column
+  @ForeignKey(() => Categories)
+  categoryId: number
+
+  @Column
+  @ForeignKey(() => OrderedItem)
+  orderedItemId: number
+
+  @Column
+  price: number
+
+  @Column
+  discount: number
+  
+  // Relations
+  @BelongsTo(() => OrderedItem)
+  orderedItem: OrderedItem
+
+  @HasOne(() => Categories)
+  category: Categories
+}