MM_30476 [v2] Section 'User' of the server schema (#5073)

* MM_30476 : Added all isolated tables from the server schema

* MM_30476 : Updated 'test' script in package.json

* MM_30476 : Added USER section of the server schema

* MM_30476 : Added the models index back

* MM_30476 : Updated User entity as per previous comments

* MM_30476 : Added lazy query to channel membership

* MM_30476 : Adjusted PR as per suggestions

* MM_30476 : Update nick_name in user model

Co-authored-by: Elias Nahum <nahumhbl@gmail.com>

* MM_30476 : Adjusted extra padding

* MM_30476 : Corrected ChannelMemberShipSchema to ChannelMembershipSchema

* MM_30476 : Updated types/database/index.ts to types/database/index.d.ts

Co-authored-by: Elias Nahum <nahumhbl@gmail.com>

app/database/server/models/channel_membership.ts

@@ -0,0 +1,53 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Q, Query, Relation} from '@nozbe/watermelondb';
+import {field, immutableRelation, lazy} from '@nozbe/watermelondb/decorators';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+
+import {MM_TABLES} from '@constants/database';
+import Channel from '@typings/database/channel';
+import User from '@typings/database/user';
+
+const {CHANNEL, CHANNEL_MEMBERSHIP, USER} = MM_TABLES.SERVER;
+
+/**
+ * The ChannelMembership model represents the 'association table' where many channels have users and many users are on
+ * channels ( N:N relationship between model Users and model Channel)
+ */
+export default class ChannelMembership extends Model {
+    /** table (entity name) : ChannelMembership */
+    static table = CHANNEL_MEMBERSHIP;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations = {
+
+        /** A CHANNEL can have multiple USER */
+        [CHANNEL]: {type: 'belongs_to', key: 'channel_id'},
+
+        /** A USER can belong to multiple CHANNEL */
+        [USER]: {type: 'belongs_to', key: 'user_id'},
+    };
+
+    /** channel_id : The foreign key to the related Channel record */
+    @field('channel_id') channelId!: string;
+
+    /* user_id: The foreign key to the related User record*/
+    @field('user_id') userId!: string;
+
+    /** memberChannel : The related channel this member belongs to */
+    @immutableRelation(CHANNEL, 'channel_id') channel!: Relation<Channel>;
+
+    /** memberUser : The related member belonging to the channel */
+    @immutableRelation(USER, 'user_id') user!: Relation<User>;
+
+    /**
+     * getAllChannelsForUser - Retrieves all the channels that the user is part of
+     */
+    @lazy getAllChannelsForUser = this.collections.get(CHANNEL).query(Q.on(USER, 'id', this.userId)) as Query<Channel>
+
+    /**
+     * getAllUsersInChannel - Retrieves all the users who are part of this channel
+     */
+    @lazy getAllUsersInChannel = this.collections.get(USER).query(Q.on(CHANNEL, 'id', this.channelId)) as Query<User>
+}

app/database/server/models/index.ts

@@ -1,13 +1,17 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
+export {default as ChannelMembership} from './channel_membership';
 export {default as CustomEmoji} from './custom_emoji';
 export {default as MyTeam} from './my_team';
+export {default as Preference} from './preference';
+export {default as Reaction} from './reaction';
 export {default as Role} from './role';
 export {default as SlashCommand} from './slash_command';
 export {default as System} from './system';
-export {default as Team} from './team';
 export {default as TeamChannelHistory} from './team_channel_history';
 export {default as TeamMembership} from './team_membership';
 export {default as TeamSearchHistory} from './team_search_history';
+export {default as Team} from './team';
 export {default as TermsOfService} from './terms_of_service';
+export {default as User} from './user';

app/database/server/models/preference.ts

@@ -0,0 +1,42 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Relation} from '@nozbe/watermelondb';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+import {field, immutableRelation} from '@nozbe/watermelondb/decorators';
+
+import {MM_TABLES} from '@constants/database';
+import User from '@typings/database/user';
+
+const {PREFERENCE, USER} = MM_TABLES.SERVER;
+
+/**
+ * The Preference model hold information about the user's preference in the app.
+ * This includes settings about the account, the themes, etc.
+ */
+export default class Preference extends Model {
+    /** table (entity name) : Preference */
+    static table = PREFERENCE;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations = {
+
+        /** A USER can have multiple PREFERENCE.(relationship is 1:N)*/
+        [USER]: {type: 'belongs_to', key: 'user_id'},
+    };
+
+    /** category : The preference category ( e.g. Themes, Account settings etc..) */
+    @field('category') category!: string;
+
+    /** name : The category name */
+    @field('name') name!: string;
+
+    /** user_id : The foreign key of the user's record in this model */
+    @field('user_id') userId!: string;
+
+    /** value : The preference's value */
+    @field('value') value!: string;
+
+    /** user : The related record to the parent User model */
+    @immutableRelation(USER, 'user_id') user!: Relation<User>;
+}

app/database/server/models/reaction.ts

@@ -0,0 +1,48 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Relation} from '@nozbe/watermelondb';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+import {field, immutableRelation} from '@nozbe/watermelondb/decorators';
+
+import {MM_TABLES} from '@constants/database';
+import User from '@typings/database/user';
+import Post from '@typings/database/post';
+
+const {POST, REACTION, USER} = MM_TABLES.SERVER;
+
+/**
+ * The Reaction Model is used to present the reactions a user had on a particular post
+ */
+export default class Reaction extends Model {
+    /** table (entity name) : Reaction */
+    static table = REACTION;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations = {
+
+        /** A POST can have multiple REACTION. (relationship is 1:N) */
+        [POST]: {type: 'belongs_to', key: 'post_id'},
+
+        /** A USER can have multiple REACTION. (relationship is 1:N) */
+        [USER]: {type: 'belongs_to', key: 'user_id'},
+    };
+
+    /** createAt : Creation timestamp used for sorting reactions amongst users on a particular post */
+    @field('create_at') createAt!: number;
+
+    /** emoji_name : The emoticon used to express the reaction */
+    @field('emoji_name') emojiName!: string;
+
+    /** post_id : The related Post's foreign key on which this reaction was expressed */
+    @field('post_id') postId!: string;
+
+    /** user_id : The related User's foreign key by which this reaction was expressed */
+    @field('user_id') userId!: string;
+
+    /** reactionUser : The related record to the User model */
+    @immutableRelation(USER, 'user_id') user!: Relation<User>;
+
+    /** reactionPost : The related record to the Post model */
+    @immutableRelation(POST, 'post_id') post!: Relation<Post>;
+}

app/database/server/models/user.ts

@@ -0,0 +1,133 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {children, field, json} from '@nozbe/watermelondb/decorators';
+
+import {MM_TABLES} from '@constants/database';
+import Channel from '@typings/database/channel';
+import ChannelMembership from '@typings/database/channel_membership';
+import GroupMembership from '@typings/database/group_membership';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+import Post from '@typings/database/post';
+import Preference from '@typings/database/preference';
+import Reaction from '@typings/database/reaction';
+import TeamMembership from '@typings/database/team_membership';
+
+const {
+    CHANNEL,
+    CHANNEL_MEMBERSHIP,
+    GROUP_MEMBERSHIP,
+    POST,
+    PREFERENCE,
+    REACTION,
+    TEAM_MEMBERSHIP,
+    USER,
+} = MM_TABLES.SERVER;
+
+/**
+ * The User model represents the 'USER' entity and its relationship to other
+ * shareholders in the app.
+ */
+export default class User extends Model {
+    /** table (entity name) : User */
+    static table = USER;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations = {
+
+        /** USER has a 1:N relationship with CHANNEL.  A user can create multiple channels */
+        [CHANNEL]: {type: 'has_many', foreignKey: 'creator_id'},
+
+        /** USER has a 1:N relationship with CHANNEL_MEMBERSHIP.  A user can be part of multiple channels */
+        [CHANNEL_MEMBERSHIP]: {type: 'has_many', foreignKey: 'user_id'},
+
+        /** USER has a 1:N relationship with GROUP_MEMBERSHIP.  A user can be part of multiple groups */
+        [GROUP_MEMBERSHIP]: {type: 'has_many', foreignKey: 'user_id'},
+
+        /** USER has a 1:N relationship with POST.  A user can author multiple posts */
+        [POST]: {type: 'has_many', foreignKey: 'user_id'},
+
+        /** USER has a 1:N relationship with PREFERENCE.  A user can have multiple preferences */
+        [PREFERENCE]: {type: 'has_many', foreignKey: 'user_id'},
+
+        /** USER has a 1:N relationship with REACTION.  A user can react to multiple posts */
+        [REACTION]: {type: 'has_many', foreignKey: 'user_id'},
+
+        /** USER has a 1:N relationship with TEAM_MEMBERSHIP.  A user can join multiple teams */
+        [TEAM_MEMBERSHIP]: {type: 'has_many', foreignKey: 'user_id'},
+    };
+
+    /** auth_service : The type of authentication service registered to that user */
+    @field('auth_service') authService!: string;
+
+    /** delete_at : The timestamp at which this user account has been archived/deleted */
+    @field('delete_at') deleteAt!: number;
+
+    /** email : The email address for that user  */
+    @field('email') email!: string;
+
+    /** first_name : The user's first name */
+    @field('first_name') firstName!: string;
+
+    /** is_bot : Boolean flag indicating if the user is a bot */
+    @field('is_bot') isBot!: boolean;
+
+    /** is_guest : Boolean flag indicating if the user is a guest */
+    @field('is_guest') isGuest!: boolean;
+
+    /** last_name : The user's last name */
+    @field('last_name') lastName!: string;
+
+    /** last_picture_update : The timestamp of the last time the profile picture has been updated */
+    @field('last_picture_update') lastPictureUpdate!: number;
+
+    /** locale : The user's locale */
+    @field('locale') locale!: string;
+
+    /** nickname : The user's nickname */
+    @field('nickname') nickname!: string;
+
+    /** position : The user's position in the company */
+    @field('position') position!: string;
+
+    /** roles : The associated roles that this user has */
+    @field('roles') roles!: string;
+
+    /** status : The presence status for the user */
+    @field('status') status!: string;
+
+    /** username : The user's username */
+    @field('username') username!: string;
+
+    /** notify_props : Notification preferences/configurations */
+    @json('notify_props', (rawJson) => rawJson) notifyProps!: NotifyProps;
+
+    /** props : Custom objects ( e.g. custom status) can be stored in there. Its type definition is known as
+     *  'excess property check' in Typescript land.  We keep using it till we build up the final shape of this object.
+     */
+    @json('props', (rawJson) => rawJson) props!: UserProps;
+
+    /** timezone : The timezone for this user */
+    @json('timezone', (rawJson) => rawJson) timezone!: Timezone;
+
+    /** channelsCreated : All the channels that this user created */
+    @children(CHANNEL) channelsCreated!: Channel[];
+
+    /** channels : All the channels that this user is part of  */
+    @children(CHANNEL_MEMBERSHIP) channels!: ChannelMembership[];
+
+    /** groups : All the groups that this user is part of  */
+    @children(GROUP_MEMBERSHIP) groups!: GroupMembership[];
+
+    /** posts :  All the posts that this user has written*/
+    @children(POST) posts!: Post[];
+
+    /** preferences : All user preferences */
+    @children(PREFERENCE) preferences!: Preference[];
+
+    /** reactions : All the reactions to posts that this user had */
+    @children(REACTION) reactions!: Reaction[];
+
+    /** teams : All the team that this user is part of  */
+    @children(TEAM_MEMBERSHIP) teams!: TeamMembership[];
+}

app/database/server/schema/index.ts

@@ -4,8 +4,11 @@
 import {AppSchema, appSchema} from '@nozbe/watermelondb';
 
 import {
+    ChannelMembershipSchema,
     CustomEmojiSchema,
     MyTeamSchema,
+    PreferenceSchema,
+    ReactionSchema,
     RoleSchema,
     SlashCommandSchema,
     SystemSchema,
@@ -14,13 +17,17 @@ import {
     TeamSchema,
     TeamSearchHistorySchema,
     TermsOfServiceSchema,
+    UserSchema,
 } from './table_schemas';
 
 export const serverSchema: AppSchema = appSchema({
     version: 1,
     tables: [
+        ChannelMembershipSchema,
         CustomEmojiSchema,
         MyTeamSchema,
+        PreferenceSchema,
+        ReactionSchema,
         RoleSchema,
         SlashCommandSchema,
         SystemSchema,
@@ -29,5 +36,6 @@ export const serverSchema: AppSchema = appSchema({
         TeamSchema,
         TeamSearchHistorySchema,
         TermsOfServiceSchema,
+        UserSchema,
     ],
 });

app/database/server/schema/table_schemas/channel_membership.ts

@@ -0,0 +1,16 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {tableSchema} from '@nozbe/watermelondb';
+
+import {MM_TABLES} from '@constants/database';
+
+const {CHANNEL_MEMBERSHIP} = MM_TABLES.SERVER;
+
+export default tableSchema({
+    name: CHANNEL_MEMBERSHIP,
+    columns: [
+        {name: 'channel_id', type: 'string', isIndexed: true},
+        {name: 'user_id', type: 'string', isIndexed: true},
+    ],
+});

app/database/server/schema/table_schemas/index.ts

@@ -1,8 +1,11 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
+export {default as ChannelMembershipSchema} from './channel_membership';
 export {default as CustomEmojiSchema} from './custom_emoji';
 export {default as MyTeamSchema} from './my_team';
+export {default as PreferenceSchema} from './preference';
+export {default as ReactionSchema} from './reaction';
 export {default as RoleSchema} from './role';
 export {default as SlashCommandSchema} from './slash_command';
 export {default as SystemSchema} from './system';
@@ -11,3 +14,4 @@ export {default as TeamMembershipSchema} from './team_membership';
 export {default as TeamSchema} from './team';
 export {default as TeamSearchHistorySchema} from './team_search_history';
 export {default as TermsOfServiceSchema} from './terms_of_service';
+export {default as UserSchema} from './user';

app/database/server/schema/table_schemas/preference.ts

@@ -0,0 +1,18 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {tableSchema} from '@nozbe/watermelondb';
+
+import {MM_TABLES} from '@constants/database';
+
+const {PREFERENCE} = MM_TABLES.SERVER;
+
+export default tableSchema({
+    name: PREFERENCE,
+    columns: [
+        {name: 'category', type: 'string', isIndexed: true},
+        {name: 'name', type: 'string'},
+        {name: 'user_id', type: 'string', isIndexed: true},
+        {name: 'value', type: 'string'},
+    ],
+});

app/database/server/schema/table_schemas/reaction.ts

@@ -0,0 +1,18 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {tableSchema} from '@nozbe/watermelondb';
+
+import {MM_TABLES} from '@constants/database';
+
+const {REACTION} = MM_TABLES.SERVER;
+
+export default tableSchema({
+    name: REACTION,
+    columns: [
+        {name: 'create_at', type: 'number'},
+        {name: 'emoji_name', type: 'string'},
+        {name: 'post_id', type: 'string', isIndexed: true},
+        {name: 'user_id', type: 'string', isIndexed: true},
+    ],
+});

app/database/server/schema/table_schemas/user.ts

@@ -0,0 +1,32 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {tableSchema} from '@nozbe/watermelondb';
+
+import {MM_TABLES} from '@constants/database';
+
+const {USER} = MM_TABLES.SERVER;
+
+export default tableSchema({
+    name: USER,
+    columns: [
+        {name: 'auth_service', type: 'string'},
+        {name: 'delete_at', type: 'number'},
+        {name: 'email', type: 'string'},
+        {name: 'first_name', type: 'string'},
+        {name: 'is_bot', type: 'boolean'},
+        {name: 'is_guest', type: 'boolean'},
+        {name: 'last_name', type: 'string'},
+        {name: 'last_picture_update', type: 'number'},
+        {name: 'locale', type: 'string'},
+        {name: 'nickname', type: 'string'},
+        {name: 'notify_props', type: 'string'},
+        {name: 'position', type: 'string'},
+        {name: 'props', type: 'string'},
+        {name: 'roles', type: 'string'},
+        {name: 'status', type: 'string'},
+        {name: 'timezone', type: 'string'},
+        {name: 'user_id', type: 'string'},
+        {name: 'username', type: 'string'},
+    ],
+});

app/database/server/schema/test.ts

@@ -6,16 +6,20 @@ import {MM_TABLES} from '@constants/database';
 import {serverSchema} from './index';
 
 const {
+    CHANNEL_MEMBERSHIP,
     CUSTOM_EMOJI,
     MY_TEAM,
+    PREFERENCE,
+    REACTION,
     ROLE,
     SLASH_COMMAND,
     SYSTEM,
-    TERMS_OF_SERVICE,
     TEAM,
     TEAM_CHANNEL_HISTORY,
     TEAM_MEMBERSHIP,
     TEAM_SEARCH_HISTORY,
+    TERMS_OF_SERVICE,
+    USER,
 } = MM_TABLES.SERVER;
 
 describe('*** Test schema for SERVER database ***', () => {
@@ -23,6 +27,17 @@ describe('*** Test schema for SERVER database ***', () => {
         expect(serverSchema).toEqual({
             version: 1,
             tables: {
+                [CHANNEL_MEMBERSHIP]: {
+                    name: CHANNEL_MEMBERSHIP,
+                    columns: {
+                        channel_id: {name: 'channel_id', type: 'string', isIndexed: true},
+                        user_id: {name: 'user_id', type: 'string', isIndexed: true},
+                    },
+                    columnArray: [
+                        {name: 'channel_id', type: 'string', isIndexed: true},
+                        {name: 'user_id', type: 'string', isIndexed: true},
+                    ],
+                },
                 [CUSTOM_EMOJI]: {
                     name: CUSTOM_EMOJI,
                     columns: {
@@ -32,6 +47,36 @@ describe('*** Test schema for SERVER database ***', () => {
                         {name: 'name', type: 'string'},
                     ],
                 },
+                [PREFERENCE]: {
+                    name: PREFERENCE,
+                    columns: {
+                        category: {name: 'category', type: 'string', isIndexed: true},
+                        name: {name: 'name', type: 'string'},
+                        user_id: {name: 'user_id', type: 'string', isIndexed: true},
+                        value: {name: 'value', type: 'string'},
+                    },
+                    columnArray: [
+                        {name: 'category', type: 'string', isIndexed: true},
+                        {name: 'name', type: 'string'},
+                        {name: 'user_id', type: 'string', isIndexed: true},
+                        {name: 'value', type: 'string'},
+                    ],
+                },
+                [REACTION]: {
+                    name: REACTION,
+                    columns: {
+                        create_at: {name: 'create_at', type: 'number'},
+                        emoji_name: {name: 'emoji_name', type: 'string'},
+                        post_id: {name: 'post_id', type: 'string', isIndexed: true},
+                        user_id: {name: 'user_id', type: 'string', isIndexed: true},
+                    },
+                    columnArray: [
+                        {name: 'create_at', type: 'number'},
+                        {name: 'emoji_name', type: 'string'},
+                        {name: 'post_id', type: 'string', isIndexed: true},
+                        {name: 'user_id', type: 'string', isIndexed: true},
+                    ],
+                },
                 [MY_TEAM]: {
                     name: MY_TEAM,
                     columns: {
@@ -162,6 +207,49 @@ describe('*** Test schema for SERVER database ***', () => {
                         {name: 'accepted_at', type: 'number'},
                     ],
                 },
+                [USER]: {
+                    name: USER,
+                    columns: {
+                        auth_service: {name: 'auth_service', type: 'string'},
+                        delete_at: {name: 'delete_at', type: 'number'},
+                        email: {name: 'email', type: 'string'},
+                        first_name: {name: 'first_name', type: 'string'},
+                        is_bot: {name: 'is_bot', type: 'boolean'},
+                        is_guest: {name: 'is_guest', type: 'boolean'},
+                        last_name: {name: 'last_name', type: 'string'},
+                        last_picture_update: {name: 'last_picture_update', type: 'number'},
+                        locale: {name: 'locale', type: 'string'},
+                        nickname: {name: 'nickname', type: 'string'},
+                        notify_props: {name: 'notify_props', type: 'string'},
+                        position: {name: 'position', type: 'string'},
+                        props: {name: 'props', type: 'string'},
+                        roles: {name: 'roles', type: 'string'},
+                        status: {name: 'status', type: 'string'},
+                        timezone: {name: 'timezone', type: 'string'},
+                        user_id: {name: 'user_id', type: 'string'},
+                        username: {name: 'username', type: 'string'},
+                    },
+                    columnArray: [
+                        {name: 'auth_service', type: 'string'},
+                        {name: 'delete_at', type: 'number'},
+                        {name: 'email', type: 'string'},
+                        {name: 'first_name', type: 'string'},
+                        {name: 'is_bot', type: 'boolean'},
+                        {name: 'is_guest', type: 'boolean'},
+                        {name: 'last_name', type: 'string'},
+                        {name: 'last_picture_update', type: 'number'},
+                        {name: 'locale', type: 'string'},
+                        {name: 'nickname', type: 'string'},
+                        {name: 'notify_props', type: 'string'},
+                        {name: 'position', type: 'string'},
+                        {name: 'props', type: 'string'},
+                        {name: 'roles', type: 'string'},
+                        {name: 'status', type: 'string'},
+                        {name: 'timezone', type: 'string'},
+                        {name: 'user_id', type: 'string'},
+                        {name: 'username', type: 'string'},
+                    ],
+                },
             },
         });
     });

types/database/channel_membership.d.ts

@@ -0,0 +1,42 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Query, Relation} from '@nozbe/watermelondb';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+
+import Channel from '@typings/database/channel';
+import User from '@typings/database/user';
+
+/**
+ * The ChannelMembership model represents the 'association table' where many channels have users and many users are on
+ * channels ( N:N relationship between model Users and model Channel)
+ */
+export default class ChannelMembership extends Model {
+    /** table (entity name) : ChannelMembership */
+    static table: string;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations;
+
+    /** channel_id : The foreign key to the related Channel record */
+    channelId: string;
+
+    /* user_id: The foreign key to the related User record*/
+    userId: string;
+
+    /** memberChannel : The related channel this member belongs to */
+    channel: Relation<Channel>;
+
+    /** memberUser : The related member belonging to the channel */
+    user: Relation<User>;
+
+    /**
+     * getAllChannelsForUser - Retrieves all the channels that the user is part of
+     */
+    getAllChannelsForUser: Query<Channel>;
+
+    /**
+     * getAllUsersInChannel - Retrieves all the users who are part of this channel
+     */
+    getAllUsersInChannel: Query<User>;
+}

types/database/group_membership.d.ts

@@ -0,0 +1,11 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import Model from '@nozbe/watermelondb/Model';
+
+/**
+ * The GroupMembership model represents the 'association table' where many groups have users and many users are in
+ * groups (relationship type N:N)
+ */
+export default class GroupMembership extends Model {
+}

types/database/index.d.ts

@@ -0,0 +1,23 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+interface NotifyProps {
+    channel: true;
+    desktop: string;
+    desktop_sound: true;
+    email: true;
+    first_name: true
+    mention_keys: string;
+    push: string;
+}
+
+ interface UserProps {
+    [userPropsName : string] : any
+}
+
+ interface Timezone {
+    automaticTimezone: string
+    manualTimezone: string,
+    useAutomaticTimezone: true,
+}
+

types/database/post.d.ts

@@ -0,0 +1,10 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import Model from '@nozbe/watermelondb/Model';
+
+/**
+ * The Post model is the building block of communication in the Mattermost app.
+ */
+export default class Post extends Model {
+}

types/database/preference.d.ts

@@ -0,0 +1,34 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Relation} from '@nozbe/watermelondb';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+
+import User from '@typings/database/user';
+
+/**
+ * The Preference model hold information about the user's preference in the app.
+ * This includes settings about the account, the themes, etc.
+ */
+export default class Preference extends Model {
+    /** table (entity name) : Preference */
+    static table: string;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations;
+
+    /** category : The preference category ( e.g. Themes, Account settings etc..) */
+    category: string;
+
+    /** name : The category name */
+    name: string;
+
+    /** user_id : The foreign key of the user's record in this model */
+    userId: string;
+
+    /** value : The preference's value */
+    value: string;
+
+    /** user : The related record to the parent User model */
+    user: Relation<User>;
+}

types/database/reaction.d.ts

@@ -0,0 +1,37 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Relation} from '@nozbe/watermelondb';
+import Model, {Associations} from '@nozbe/watermelondb/Model';
+
+import User from '@typings/database/user';
+import Post from '@typings/database/post';
+
+/**
+ * The Reaction Model is used to present the reactions a user had on a particular post
+ */
+export default class Reaction extends Model {
+    /** table (entity name) : Reaction */
+    static table: string;
+
+    /** associations : Describes every relationship to this entity. */
+    static associations: Associations;
+
+    /** createAt : Creation timestamp used for sorting reactions amongst users on a particular post */
+    createAt: number;
+
+    /** emoji_name : The emoticon used to express the reaction */
+    emojiName: string;
+
+    /** post_id : The related Post's foreign key on which this reaction was expressed */
+    postId: string;
+
+    /** user_id : The related User's foreign key by which this reaction was expressed */
+    userId: string;
+
+    /** reactionUser : The related record to the User model */
+    user: Relation<User>;
+
+    /** reactionPost : The related record to the Post model */
+    post: Relation<Post>;
+}

types/database/user.d.ts

@@ -6,6 +6,7 @@ import Model, {Associations} from '@nozbe/watermelondb/Model';
 import Channel from '@typings/database/channel';
 import ChannelMembership from '@typings/database/channel_membership';
 import GroupMembership from '@typings/database/group_membership';
+import {NotifyProps, Timezone, UserProps} from '@typings/database/index';
 import Post from '@typings/database/post';
 import Preference from '@typings/database/preference';
 import Reaction from '@typings/database/reaction';
@@ -65,29 +66,15 @@ export default class User extends Model {
     username: string;
 
     /** notify_props : Notification preferences/configurations */
-    notifyProps: {
+    notifyProps: NotifyProps;
-        channel: true,
-        desktop: string,
-        desktop_sound: true,
-        email: true,
-        first_name: true
-        mention_keys: string,
-        push: string,
-    };
 
     /** props : Custom objects ( e.g. custom status) can be stored in there. Its type definition is known as
      *  'excess property check' in Typescript land.  We keep using it till we build up the final shape of this object.
      */
-    props: {
+    props: UserProps;
-        [propName as string] : any
-    };
 
     /** timezone : The timezone for this user */
-    timezone: {
+    timezone: Timezone;
-        automaticTimezone: string
-        manualTimezone: string,
-        useAutomaticTimezone: true,
-    };
 
     /** channelsCreated : All the channels that this user created */
     channelsCreated: Channel[];