Resolve #4941

src/models/entities/user-group-invite.ts

@@ -0,0 +1,42 @@
+import { PrimaryColumn, Entity, Index, JoinColumn, Column, ManyToOne } from 'typeorm';
+import { User } from './user';
+import { UserGroup } from './user-group';
+import { id } from '../id';
+
+@Entity()
+@Index(['userId', 'userGroupId'], { unique: true })
+export class UserGroupInvite {
+	@PrimaryColumn(id())
+	public id: string;
+
+	@Column('timestamp with time zone', {
+		comment: 'The created date of the UserGroupInvite.'
+	})
+	public createdAt: Date;
+
+	@Index()
+	@Column({
+		...id(),
+		comment: 'The user ID.'
+	})
+	public userId: User['id'];
+
+	@ManyToOne(type => User, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public user: User | null;
+
+	@Index()
+	@Column({
+		...id(),
+		comment: 'The group ID.'
+	})
+	public userGroupId: UserGroup['id'];
+
+	@ManyToOne(type => UserGroup, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public userGroup: UserGroup | null;
+}

src/models/entities/user-group-joining.ts

@@ -4,6 +4,7 @@ import { UserGroup } from './user-group';
 import { id } from '../id';
 
 @Entity()
+@Index(['userId', 'userGroupId'], { unique: true })
 export class UserGroupJoining {
 	@PrimaryColumn(id())
 	public id: string;

src/models/index.ts

@@ -22,6 +22,7 @@ import { UserListRepository } from './repositories/user-list';
 import { UserListJoining } from './entities/user-list-joining';
 import { UserGroupRepository } from './repositories/user-group';
 import { UserGroupJoining } from './entities/user-group-joining';
+import { UserGroupInviteRepository } from './repositories/user-group-invite';
 import { FollowRequestRepository } from './repositories/follow-request';
 import { MutingRepository } from './repositories/muting';
 import { BlockingRepository } from './repositories/blocking';
@@ -56,6 +57,7 @@ export const UserLists = getCustomRepository(UserListRepository);
 export const UserListJoinings = getRepository(UserListJoining);
 export const UserGroups = getCustomRepository(UserGroupRepository);
 export const UserGroupJoinings = getRepository(UserGroupJoining);
+export const UserGroupInvites = getCustomRepository(UserGroupInviteRepository);
 export const UserNotePinings = getRepository(UserNotePining);
 export const Followings = getCustomRepository(FollowingRepository);
 export const FollowRequests = getCustomRepository(FollowRequestRepository);

src/models/repositories/user-group-invite.ts

@@ -0,0 +1,24 @@
+import { EntityRepository, Repository } from 'typeorm';
+import { UserGroupInvite } from '../entities/user-group-invite';
+import { UserGroups } from '..';
+import { ensure } from '../../prelude/ensure';
+
+@EntityRepository(UserGroupInvite)
+export class UserGroupInviteRepository extends Repository<UserGroupInvite> {
+	public async pack(
+		src: UserGroupInvite['id'] | UserGroupInvite,
+	) {
+		const invite = typeof src === 'object' ? src : await this.findOne(src).then(ensure);
+
+		return {
+			id: invite.id,
+			group: await UserGroups.pack(invite.userGroup || invite.userGroupId),
+		};
+	}
+
+	public packMany(
+		invites: any[],
+	) {
+		return Promise.all(invites.map(x => this.pack(x)));
+	}
+}