refactoring

Resolve #7779

packages/backend/src/models/entities/antenna-note.ts

@@ -0,0 +1,43 @@
+import { Entity, Index, JoinColumn, Column, ManyToOne, PrimaryColumn } from 'typeorm';
+import { Note } from './note';
+import { Antenna } from './antenna';
+import { id } from '../id';
+
+@Entity()
+@Index(['noteId', 'antennaId'], { unique: true })
+export class AntennaNote {
+	@PrimaryColumn(id())
+	public id: string;
+
+	@Index()
+	@Column({
+		...id(),
+		comment: 'The note ID.'
+	})
+	public noteId: Note['id'];
+
+	@ManyToOne(type => Note, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public note: Note | null;
+
+	@Index()
+	@Column({
+		...id(),
+		comment: 'The antenna ID.'
+	})
+	public antennaId: Antenna['id'];
+
+	@ManyToOne(type => Antenna, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public antenna: Antenna | null;
+
+	@Index()
+	@Column('boolean', {
+		default: false
+	})
+	public read: boolean;
+}