3 files changed, 109 insertions, 2 deletions
diff --git a/src/models/entities/messaging-message.ts b/src/models/entities/messaging-message.ts
index d3c3eab3a2..c18897a37d 100644
--- a/src/models/entities/messaging-message.ts
+++ b/src/models/entities/messaging-message.ts
@@ -2,6 +2,7 @@ import { PrimaryColumn, Entity, Index, JoinColumn, Column, ManyToOne } from 'typ
 import { User } from './user';
 import { DriveFile } from './drive-file';
 import { id } from '../id';
+import { UserGroup } from './user-group';
 
 @Entity()
 export class MessagingMessage {
@@ -29,10 +30,10 @@ export class MessagingMessage {
 
 	@Index()
 	@Column({
-		...id(),
+		...id(), nullable: true,
 		comment: 'The recipient user ID.'
 	})
-	public recipientId: User['id'];
+	public recipientId: User['id'] | null;
 
 	@ManyToOne(type => User, {
 		onDelete: 'CASCADE'
@@ -40,6 +41,19 @@ export class MessagingMessage {
 	@JoinColumn()
 	public recipient: User | null;
 
+	@Index()
+	@Column({
+		...id(), nullable: true,
+		comment: 'The recipient group ID.'
+	})
+	public groupId: UserGroup['id'] | null;
+
+	@ManyToOne(type => UserGroup, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public group: UserGroup | null;
+
 	@Column('varchar', {
 		length: 4096, nullable: true
 	})
@@ -52,6 +66,12 @@ export class MessagingMessage {
 
 	@Column({
 		...id(),
+		array: true, default: '{}'
+	})
+	public reads: User['id'][];
+
+	@Column({
+		...id(),
 		nullable: true,
 	})
 	public fileId: DriveFile['id'] | null;
diff --git a/src/models/entities/user-group-joining.ts b/src/models/entities/user-group-joining.ts
new file mode 100644
index 0000000000..17b534f42f
--- /dev/null
+++ b/src/models/entities/user-group-joining.ts
@@ -0,0 +1,41 @@
+import { PrimaryColumn, Entity, Index, JoinColumn, Column, ManyToOne } from 'typeorm';
+import { User } from './user';
+import { UserGroup } from './user-group';
+import { id } from '../id';
+
+@Entity()
+export class UserGroupJoining {
+	@PrimaryColumn(id())
+	public id: string;
+
+	@Column('timestamp with time zone', {
+		comment: 'The created date of the UserGroupJoining.'
+	})
+	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;
+}
diff --git a/src/models/entities/user-group.ts b/src/models/entities/user-group.ts
new file mode 100644
index 0000000000..f4bac03223
--- /dev/null
+++ b/src/models/entities/user-group.ts
@@ -0,0 +1,46 @@
+import { Entity, Index, JoinColumn, Column, PrimaryColumn, ManyToOne } from 'typeorm';
+import { User } from './user';
+import { id } from '../id';
+
+@Entity()
+export class UserGroup {
+	@PrimaryColumn(id())
+	public id: string;
+
+	@Index()
+	@Column('timestamp with time zone', {
+		comment: 'The created date of the UserGroup.'
+	})
+	public createdAt: Date;
+
+	@Column('varchar', {
+		length: 256,
+	})
+	public name: string;
+
+	@Index()
+	@Column({
+		...id(),
+		comment: 'The ID of owner.'
+	})
+	public userId: User['id'];
+
+	@ManyToOne(type => User, {
+		onDelete: 'CASCADE'
+	})
+	@JoinColumn()
+	public user: User | null;
+
+	@Column('boolean', {
+		default: false,
+	})
+	public isPrivate: boolean;
+
+	constructor(data: Partial<UserGroup>) {
+		if (data == null) return;
+
+		for (const [k, v] of Object.entries(data)) {
+			(this as any)[k] = v;
+		}
+	}
+}