Initial rough working draft of v3

src/entity/Channel.ts

@@ -0,0 +1,17 @@
+/* eslint-disable import/no-cycle */
+import { PrimaryColumn, Entity, ManyToOne, BaseEntity, Column } from 'typeorm';
+import { Guild } from './Guild';
+
+@Entity()
+export class Channel extends BaseEntity {
+  @PrimaryColumn()
+  id: string;
+
+  @Column({
+    default: true,
+  })
+  listen: boolean;
+
+  @ManyToOne(() => Guild, (guild) => guild.channels)
+  guild: Guild;
+}

src/entity/Guild.ts

@@ -0,0 +1,12 @@
+/* eslint-disable import/no-cycle */
+import { BaseEntity, Entity, OneToMany, PrimaryColumn } from 'typeorm';
+import { Channel } from './Channel';
+
+@Entity()
+export class Guild extends BaseEntity {
+  @PrimaryColumn()
+  id: string;
+
+  @OneToMany(() => Channel, (channel) => channel.guild, { onDelete: 'CASCADE', cascade: true })
+  channels: Channel[];
+}