add product and entity type

server/src/entity/event-type.entity.ts

@@ -0,0 +1,23 @@
+import { Entity, PrimaryGeneratedColumn, Column } from 'typeorm';
+import { IsString, IsNumber, IsBoolean, IsDate, IsOptional } from 'class-validator';
+
+@Entity({ name: 'event_type' })
+export class EventType {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column()
+  @IsString()
+  name: string;
+
+  @Column({ type: 'character varying', nullable: true })
+  @IsOptional()
+  @IsString()
+  description: string | null;
+
+  @Column({ type: 'character varying', nullable: true })
+  @IsOptional()
+  @IsString()
+  color: string | null;
+
+}

server/src/entity/product.entity.ts

@@ -0,0 +1,23 @@
+import { Entity, PrimaryGeneratedColumn, Column } from 'typeorm';
+import { IsString, IsNumber, IsBoolean, IsDate, IsOptional } from 'class-validator';
+
+@Entity({ name: 'products' })
+export class Product {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column()
+  @IsString()
+  name: string;
+
+  @Column({ type: 'numeric', nullable: true })
+  @IsOptional()
+  @IsNumber()
+  price: number | null;
+
+  @Column({ type: 'boolean', nullable: true, default: true })
+  @IsOptional()
+  @IsBoolean()
+  is_available: boolean | null = true;
+
+}