refactoring

Resolve #7779

packages/backend/src/models/entities/user-keypair.ts

@@ -0,0 +1,33 @@
+import { PrimaryColumn, Entity, JoinColumn, Column, OneToOne } from 'typeorm';
+import { User } from './user';
+import { id } from '../id';
+
+@Entity()
+export class UserKeypair {
+	@PrimaryColumn(id())
+	public userId: User['id'];
+
+	@OneToOne(type => User, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public user: User | null;
+
+	@Column('varchar', {
+		length: 4096,
+	})
+	public publicKey: string;
+
+	@Column('varchar', {
+		length: 4096,
+	})
+	public privateKey: string;
+
+	constructor(data: Partial<UserKeypair>) {
+		if (data == null) return;
+
+		for (const [k, v] of Object.entries(data)) {
+			(this as any)[k] = v;
+		}
+	}
+}