From 217aab9faa91b7ea2c8bce31c03e8e3fe5d51f4e Mon Sep 17 00:00:00 2001
From: mgabdev <>
Date: Thu, 10 Sep 2020 17:07:00 -0500
Subject: [PATCH] Added join requests to Groups
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

• Added:
- join requests to Groups
- redux actions, reducers
- controller and functionality for fetching join requests, accepting, rejecting join requests
---
 .../api/v1/groups/requests_controller.rb      |  97 +++++++++++
 app/javascript/gabsocial/actions/groups.js    | 157 ++++++++++++++++++
 .../gabsocial/features/group_join_requests.js | 130 +++++++++++++++
 app/javascript/gabsocial/features/ui/ui.js    |   2 +
 .../features/ui/util/async_components.js      |   2 +-
 app/javascript/gabsocial/pages/group_page.js  |  23 ++-
 .../gabsocial/reducers/user_lists.js          |  13 ++
 app/models/concerns/group_interactions.rb     |   4 +
 app/models/group.rb                           |   3 +
 app/models/group_join_request.rb              |  17 ++
 .../group_relationships_presenter.rb          |   3 +-
 .../rest/group_relationship_serializer.rb     |   6 +-
 config/routes.rb                              |   5 +
 13 files changed, 456 insertions(+), 6 deletions(-)
 create mode 100644 app/controllers/api/v1/groups/requests_controller.rb
 create mode 100644 app/javascript/gabsocial/features/group_join_requests.js
 create mode 100644 app/models/group_join_request.rb

diff --git a/app/controllers/api/v1/groups/requests_controller.rb b/app/controllers/api/v1/groups/requests_controller.rb
new file mode 100644
index 00000000..ab01e85d
--- /dev/null
+++ b/app/controllers/api/v1/groups/requests_controller.rb
@@ -0,0 +1,97 @@
+# frozen_string_literal: true
+
+class Api::V1::Groups::RequestsController < Api::BaseController
+  include Authorization
+
+  before_action -> { doorkeeper_authorize! :read, :'read:groups' }, only: [:show]
+  before_action -> { doorkeeper_authorize! :write, :'write:groups' }, except: [:show]
+
+  before_action :require_user!
+  before_action :set_group
+
+  after_action :insert_pagination_headers, only: :show
+
+  def show
+    @accounts = load_accounts
+    render json: @accounts, each_serializer: REST::AccountSerializer
+  end
+
+  def create
+    authorize @group, :leave?
+    GroupJoinRequest.where(group: @group, account_id: current_account.id).destroy_all
+    render json: @group, serializer: REST::GroupRelationshipSerializer, relationships: relationships
+  end
+
+  def approve_request
+    GroupJoinRequest.where(group: @group, account_id: params[:accountId]).destroy_all
+    GroupAccount.create(group: @group, account_id: params[:accountId])
+    render json: {"message": "ok"}
+  end
+
+  def reject_request
+    GroupJoinRequest.where(group: @group, account_id: params[:accountId]).destroy_all
+    render json: {"message": "ok"}
+  end
+
+  private
+
+  def relationships
+    GroupRelationshipsPresenter.new([@group.id], current_user.account_id)
+  end
+
+  def set_group
+    @group = Group.find(params[:group_id])
+  end
+
+  def load_accounts
+    if unlimited?
+      @group.join_requests.includes(:account_stat).all
+    else
+      @group.join_requests.includes(:account_stat).paginate_by_max_id(limit_param(DEFAULT_ACCOUNTS_LIMIT), params[:max_id], params[:since_id])
+    end
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    return if unlimited?
+
+    if records_continue?
+      api_v1_group_join_requests_url pagination_params(max_id: pagination_max_id)
+    end
+  end
+
+  def prev_path
+    return if unlimited?
+
+    unless @accounts.empty?
+      api_v1_group_join_requests_url pagination_params(since_id: pagination_since_id)
+    end
+  end
+
+  def pagination_max_id
+    @accounts.last.id
+  end
+
+  def pagination_since_id
+    @accounts.first.id
+  end
+
+  def records_continue?
+    @accounts.size == limit_param(DEFAULT_ACCOUNTS_LIMIT)
+  end
+
+  def pagination_params(core_params)
+    params.slice(:limit).permit(:limit).merge(core_params)
+  end
+
+  def unlimited?
+    params[:limit] == '0'
+  end
+
+  def group_account_params
+    params.permit(:role, :write_permissions)
+  end
+end
diff --git a/app/javascript/gabsocial/actions/groups.js b/app/javascript/gabsocial/actions/groups.js
index f71180d6..0084333d 100644
--- a/app/javascript/gabsocial/actions/groups.js
+++ b/app/javascript/gabsocial/actions/groups.js
@@ -55,6 +55,20 @@ export const GROUP_REMOVED_ACCOUNTS_CREATE_REQUEST = 'GROUP_REMOVED_ACCOUNTS_CRE
 export const GROUP_REMOVED_ACCOUNTS_CREATE_SUCCESS = 'GROUP_REMOVED_ACCOUNTS_CREATE_SUCCESS';
 export const GROUP_REMOVED_ACCOUNTS_CREATE_FAIL    = 'GROUP_REMOVED_ACCOUNTS_CREATE_FAIL';
 
+export const GROUP_JOIN_REQUESTS_FETCH_REQUEST = 'GROUP_JOIN_REQUESTS_FETCH_REQUEST'
+export const GROUP_JOIN_REQUESTS_FETCH_SUCCESS = 'GROUP_JOIN_REQUESTS_FETCH_SUCCESS'
+export const GROUP_JOIN_REQUESTS_FETCH_FAIL = 'GROUP_JOIN_REQUESTS_FETCH_FAIL'
+
+export const GROUP_JOIN_REQUESTS_EXPAND_REQUEST = 'GROUP_JOIN_REQUESTS_EXPAND_REQUEST'
+export const GROUP_JOIN_REQUESTS_EXPAND_SUCCESS = 'GROUP_JOIN_REQUESTS_EXPAND_SUCCESS'
+export const GROUP_JOIN_REQUESTS_EXPAND_FAIL = 'GROUP_JOIN_REQUESTS_EXPAND_FAIL'
+
+export const GROUP_JOIN_REQUESTS_APPROVE_SUCCESS = 'GROUP_JOIN_REQUESTS_APPROVE_SUCCESS'
+export const GROUP_JOIN_REQUESTS_APPROVE_FAIL = 'GROUP_JOIN_REQUESTS_APPROVE_FAIL'
+
+export const GROUP_JOIN_REQUESTS_REJECT_SUCCESS = 'GROUP_JOIN_REQUESTS_REJECT_SUCCESS'
+export const GROUP_JOIN_REQUESTS_REJECT_FAIL = 'GROUP_JOIN_REQUESTS_REJECT_FAIL'
+
 export const GROUP_REMOVE_STATUS_REQUEST = 'GROUP_REMOVE_STATUS_REQUEST';
 export const GROUP_REMOVE_STATUS_SUCCESS = 'GROUP_REMOVE_STATUS_SUCCESS';
 export const GROUP_REMOVE_STATUS_FAIL    = 'GROUP_REMOVE_STATUS_FAIL';
@@ -596,6 +610,149 @@ export function updateRoleFail(groupId, id, error) {
 };
 
 
+export function fetchJoinRequests(id) {
+  return (dispatch, getState) => {
+    if (!me) return
+
+    dispatch(fetchJoinRequestsRequest(id))
+
+    api(getState).get(`/api/v1/groups/${id}/join_requests`).then((response) => {
+      const next = getLinks(response).refs.find(link => link.rel === 'next')
+
+      dispatch(importFetchedAccounts(response.data))
+      dispatch(fetchJoinRequestsSuccess(id, response.data, next ? next.uri : null))
+      dispatch(fetchRelationships(response.data.map(item => item.id)))
+    }).catch((error) => {
+      dispatch(fetchJoinRequestsFail(id, error))
+    })
+  }
+}
+
+export function fetchJoinRequestsRequest(id) {
+  return {
+    type: GROUP_JOIN_REQUESTS_FETCH_REQUEST,
+    id,
+  }
+}
+
+export function fetchJoinRequestsSuccess(id, accounts, next) {
+  return {
+    type: GROUP_JOIN_REQUESTS_FETCH_SUCCESS,
+    id,
+    accounts,
+    next,
+  }
+}
+
+export function fetchJoinRequestsFail(id, error) {
+  return {
+    type: GROUP_JOIN_REQUESTS_FETCH_FAIL,
+    id,
+    error,
+  }
+}
+
+export function expandJoinRequests(id) {
+  return (dispatch, getState) => {
+    if (!me) return
+
+    const url = getState().getIn(['user_lists', 'group_join_requests', id, 'next'])
+    const isLoading = getState().getIn(['user_lists', 'group_join_requests', id, 'isLoading'])
+
+    if (url === null || isLoading) return
+
+    dispatch(expandJoinRequestsRequest(id))
+
+    api(getState).get(url).then(response => {
+      const next = getLinks(response).refs.find(link => link.rel === 'next')
+
+      dispatch(importFetchedAccounts(response.data))
+      dispatch(expandJoinRequestsSuccess(id, response.data, next ? next.uri : null))
+      dispatch(fetchRelationships(response.data.map(item => item.id)))
+    }).catch(error => {
+      dispatch(expandJoinRequestsFail(id, error))
+    })
+  }
+}
+
+export function expandJoinRequestsRequest(id) {
+  return {
+    type: GROUP_JOIN_REQUESTS_EXPAND_REQUEST,
+    id,
+  }
+}
+
+export function expandJoinRequestsSuccess(id, accounts, next) {
+  return {
+    type: GROUP_JOIN_REQUESTS_EXPAND_SUCCESS,
+    id,
+    accounts,
+    next,
+  }
+}
+
+export function expandJoinRequestsFail(id, error) {
+  return {
+    type: GROUP_JOIN_REQUESTS_EXPAND_FAIL,
+    id,
+    error,
+  }
+}
+
+export const approveJoinRequest = (accountId, groupId) => (dispatch, getState) => {
+  if (!me) return
+
+  api(getState).post(`/api/v1/groups/${groupId}/join_requests/approve`, { accountId }).then((response) => {
+    dispatch(approveJoinRequestSuccess(accountId, groupId))
+  }).catch((error) => {
+    dispatch(approveJoinRequestFail(accountId, groupId, error))
+  })
+}
+
+export function approveJoinRequestSuccess(accountId, groupId) {
+  return {
+    type: GROUP_JOIN_REQUESTS_APPROVE_SUCCESS,
+    accountId,
+    groupId,
+  }
+}
+
+export function approveJoinRequestFail(accountId, groupId, error) {
+  return {
+    type: GROUP_JOIN_REQUESTS_APPROVE_FAIL,
+    accountId,
+    groupId,
+    error,
+  }
+}
+
+export const rejectJoinRequest = (accountId, groupId) => (dispatch, getState) => {
+  if (!me) return
+
+  api(getState).delete(`/api/v1/groups/${groupId}/join_requests/reject`, { accountId }).then((response) => {
+    dispatch(rejectJoinRequestSuccess(accountId, groupId))
+  }).catch((error) => {
+    dispatch(rejectJoinRequestFail(accountId, groupId, error))
+  })
+}
+
+export function rejectJoinRequestSuccess(accountId, groupId) {
+  return {
+    type: GROUP_JOIN_REQUESTS_REJECT_SUCCESS,
+    accountId,
+    groupId,
+  }
+}
+
+export function rejectJoinRequestFail(accountId, groupId, error) {
+  return {
+    type: GROUP_JOIN_REQUESTS_REJECT_FAIL,
+    accountId,
+    groupId,
+    error,
+  }
+}
+
 export function pinGroupStatus(groupId, statusId) {
   return (dispatch, getState) => {
     if (!me) return
diff --git a/app/javascript/gabsocial/features/group_join_requests.js b/app/javascript/gabsocial/features/group_join_requests.js
new file mode 100644
index 00000000..315cb127
--- /dev/null
+++ b/app/javascript/gabsocial/features/group_join_requests.js
@@ -0,0 +1,130 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+import { connect } from 'react-redux'
+import ImmutablePureComponent from 'react-immutable-pure-component'
+import ImmutablePropTypes from 'react-immutable-proptypes'
+import debounce from 'lodash.debounce'
+import isObject from 'lodash.isobject'
+import { FormattedMessage } from 'react-intl'
+import { me } from '../initial_state'
+import {
+	fetchJoinRequests,
+	expandJoinRequests,
+	rejectJoinRequest,
+	approveJoinRequest,
+} from '../actions/groups'
+import Account from '../components/account'
+import ColumnIndicator from '../components/column_indicator'
+import Block from '../components/block'
+import BlockHeading from '../components/block_heading'
+import ScrollableList from '../components/scrollable_list'
+
+class GroupJoinRequests extends ImmutablePureComponent {
+
+	componentWillMount() {
+		const { groupId } = this.props
+
+		this.props.onFetchJoinRequests(groupId)
+	}
+
+	componentWillReceiveProps(nextProps) {
+		if (nextProps.groupId !== this.props.groupId) {
+			this.props.onFetchJoinRequests(nextProps.groupId)
+		}
+	}
+
+	handleLoadMore = debounce(() => {
+		this.props.onExpandJoinRequests(this.props.groupId)
+	}, 300, { leading: true })
+
+	render() {
+		const {
+			accountIds,
+			hasMore,
+			group,
+			groupId,
+			relationships,
+		} = this.props
+
+		if (!group || !relationships) return <ColumnIndicator type='loading' />
+
+		const isAdminOrMod = relationships ? (relationships.get('admin') || relationships.get('moderator')) : false
+
+		if (!isAdminOrMod) return <ColumnIndicator type='missing' />
+			
+		return (
+			<Block>
+				<BlockHeading title='Group Member Requests' />
+				<div className={_s.d}>
+					<ScrollableList
+						scrollKey='group-members'
+						hasMore={hasMore}
+						showLoading={(!group || !accountIds || !relationships)}
+						onLoadMore={this.handleLoadMore}
+						emptyMessage={<FormattedMessage id='group.requests.empty' defaultMessage='This group does not have any member requests.' />}
+					>
+						{
+							accountIds && accountIds.map((id) => (
+								<Account
+									compact
+									key={id}
+									id={id}
+									showDismiss
+									dismissAction={() => {
+										this.props.onRejectJoinRequest(id, groupId)
+									}}
+									actionIcon={(!isAdminOrMod || id === me) ? undefined : 'check'}
+									onActionClick={(data, event) => {
+										this.props.onApproveJoinRequest(id, groupId)
+									}}
+								/>
+							))
+						}
+					</ScrollableList>
+				</div>
+			</Block>
+		)
+	}
+
+}
+
+const mapStateToProps = (state, { params }) => {
+	const groupId = isObject(params) ? params['id'] : -1
+	const group = groupId === -1 ? null : state.getIn(['groups', groupId])
+
+	return {
+		group,
+		groupId,
+		relationships: state.getIn(['group_relationships', groupId]),
+		accountIds: state.getIn(['user_lists', 'group_join_requests', groupId, 'items']),
+		hasMore: !!state.getIn(['user_lists', 'group_join_requests', groupId, 'next']),
+	}
+}
+
+const mapDispatchToProps = (dispatch) => ({
+	onFetchJoinRequests(groupId) {
+		dispatch(fetchJoinRequests(groupId))
+	},
+	onExpandJoinRequests(groupId) {
+		dispatch(expandJoinRequests(groupId))
+	},
+	onRejectJoinRequest(accountId, groupId) {
+		dispatch(rejectJoinRequest(accountId, groupId))
+	},
+	onApproveJoinRequest(accountId, groupId) {
+		dispatch(approveJoinRequest(accountId, groupId))
+	},
+})
+
+GroupJoinRequests.propTypes = {
+	group: ImmutablePropTypes.map,
+	groupId: PropTypes.string.isRequired,
+	accountIds: ImmutablePropTypes.list,
+	hasMore: PropTypes.bool,
+	onExpandJoinRequests: PropTypes.func.isRequired,
+	onFetchJoinRequests: PropTypes.func.isRequired,
+	onRejectJoinRequest: PropTypes.func.isRequired,
+	onApproveJoinRequest: PropTypes.func.isRequired,
+}
+
+export default connect(mapStateToProps, mapDispatchToProps)(GroupJoinRequests)
\ No newline at end of file
diff --git a/app/javascript/gabsocial/features/ui/ui.js b/app/javascript/gabsocial/features/ui/ui.js
index 19878037..b7fe266a 100644
--- a/app/javascript/gabsocial/features/ui/ui.js
+++ b/app/javascript/gabsocial/features/ui/ui.js
@@ -64,6 +64,7 @@ import {
   GroupCollectionTimeline,
   GroupCreate,
   GroupAbout,
+  GroupJoinRequests,
   GroupMembers,
   GroupRemovedAccounts,
   GroupTimeline,
@@ -193,6 +194,7 @@ class SwitchingArea extends React.PureComponent {
 
         <WrappedRoute path='/groups/create' page={ModalPage} component={GroupCreate} content={children} componentParams={{ title: 'Create Group', page: 'create-group' }} />
         <WrappedRoute path='/groups/:id/members' page={GroupPage} component={GroupMembers} content={children} />
+        <WrappedRoute path='/groups/:id/requests' page={GroupPage} component={GroupJoinRequests} content={children} />
         <WrappedRoute path='/groups/:id/removed-accounts' page={GroupPage} component={GroupRemovedAccounts} content={children} />
         <WrappedRoute path='/groups/:id/edit' page={ModalPage} component={GroupCreate} content={children} componentParams={{ title: 'Edit Group', page: 'edit-group' }} />
         <WrappedRoute path='/groups/:id/about' publicRoute page={GroupPage} component={GroupAbout} content={children} />
diff --git a/app/javascript/gabsocial/features/ui/util/async_components.js b/app/javascript/gabsocial/features/ui/util/async_components.js
index 8bbe4544..e67a56c0 100644
--- a/app/javascript/gabsocial/features/ui/util/async_components.js
+++ b/app/javascript/gabsocial/features/ui/util/async_components.js
@@ -37,7 +37,7 @@ export function GroupCreate() { return import(/* webpackChunkName: "features/gro
 export function GroupCreateModal() { return import(/* webpackChunkName: "components/group_create_modal" */'../../../components/modal/group_create_modal') }
 export function GroupDeleteModal() { return import(/* webpackChunkName: "components/group_delete_modal" */'../../../components/modal/group_delete_modal') }
 export function GroupInfoPanel() { return import(/* webpackChunkName: "components/group_info_panel" */'../../../components/panel/group_info_panel') }
-// export function GroupJoinRequests() { return import(/* webpackChunkName: "features/group_join_requests" */'../../group_join_requests') }
+export function GroupJoinRequests() { return import(/* webpackChunkName: "features/group_join_requests" */'../../group_join_requests') }
 export function GroupListSortOptionsPopover() { return import(/* webpackChunkName: "components/group_list_sort_options_popover" */'../../../components/popover/group_list_sort_options_popover') }
 export function GroupMemberOptionsPopover() { return import(/* webpackChunkName: "components/group_member_options_popover" */'../../../components/popover/group_member_options_popover') }
 export function GroupMembers() { return import(/* webpackChunkName: "features/group_members" */'../../group_members') }
diff --git a/app/javascript/gabsocial/pages/group_page.js b/app/javascript/gabsocial/pages/group_page.js
index 60990481..90d07cb4 100644
--- a/app/javascript/gabsocial/pages/group_page.js
+++ b/app/javascript/gabsocial/pages/group_page.js
@@ -8,6 +8,8 @@ import { fetchGroup } from '../actions/groups'
 import PageTitle from '../features/ui/util/page_title'
 import GroupLayout from '../layouts/group_layout'
 import TimelineComposeBlock from '../components/timeline_compose_block'
+import Block from '../components/block'
+import ColumnIndicator from '../components/column_indicator'
 import Divider from '../components/divider'
 
 class GroupPage extends ImmutablePureComponent {
@@ -27,6 +29,11 @@ class GroupPage extends ImmutablePureComponent {
 
 		const groupTitle = !!group ? group.get('title') : ''
 		const groupId = !!group ? group.get('id') : undefined
+		
+		const isPrivate = !!group ? group.get('is_private') : false
+		const isMember = !!relationships ? relationships.get('member') : false
+		const unavailable = isPrivate && !isMember
+
 
 		return (
 			<GroupLayout
@@ -36,16 +43,25 @@ class GroupPage extends ImmutablePureComponent {
 				relationships={relationships}
 			>
 				<PageTitle path={[groupTitle, intl.formatMessage(messages.group)]} />
-
+				
 				{
-					!!relationships && isTimeline && relationships.get('member') &&
+					!!relationships && isTimeline && isMember &&
 					<React.Fragment>
 						<TimelineComposeBlock size={46} groupId={groupId} autoFocus />
 						<Divider />
 					</React.Fragment>
 				}
 
-				{children}
+				{
+					unavailable &&
+					<Block>
+						<ColumnIndicator type='error' message={intl.formatMessage(messages.groupPrivate)} />
+					</Block>
+				}
+
+				{
+					!unavailable && children
+				}
 			</GroupLayout>
 		)
 	}
@@ -53,6 +69,7 @@ class GroupPage extends ImmutablePureComponent {
 
 const messages = defineMessages({
 	group: { id: 'group', defaultMessage: 'Group' },
+	groupPrivate: { id: 'group_private', defaultMessage: 'This group is private. You must request to join in order to view this group.' },
 })
 
 const mapStateToProps = (state, { params: { id } }) => ({
diff --git a/app/javascript/gabsocial/reducers/user_lists.js b/app/javascript/gabsocial/reducers/user_lists.js
index 9729f8c8..76a718d3 100644
--- a/app/javascript/gabsocial/reducers/user_lists.js
+++ b/app/javascript/gabsocial/reducers/user_lists.js
@@ -48,6 +48,10 @@ import {
   GROUP_REMOVED_ACCOUNTS_FETCH_SUCCESS,
   GROUP_REMOVED_ACCOUNTS_EXPAND_SUCCESS,
   GROUP_REMOVED_ACCOUNTS_REMOVE_SUCCESS,
+  GROUP_JOIN_REQUESTS_FETCH_SUCCESS,
+  GROUP_JOIN_REQUESTS_EXPAND_SUCCESS,
+  GROUP_JOIN_REQUESTS_APPROVE_SUCCESS,
+  GROUP_JOIN_REQUESTS_REJECT_SUCCESS,
 } from '../actions/groups'
 
 const initialState = ImmutableMap({
@@ -60,6 +64,7 @@ const initialState = ImmutableMap({
   mutes: ImmutableMap(),
   groups: ImmutableMap(),
   group_removed_accounts: ImmutableMap(),
+  group_join_requests: ImmutableMap(),
 });
 
 const setListFailed = (state, type, id) => {
@@ -168,6 +173,14 @@ export default function userLists(state = initialState, action) {
   case GROUP_REMOVED_ACCOUNTS_REMOVE_SUCCESS:
     return state.updateIn(['group_removed_accounts', action.groupId, 'items'], list => list.filterNot(item => item === action.id));
   
+  case GROUP_JOIN_REQUESTS_FETCH_SUCCESS:
+    return normalizeList(state, 'group_join_requests', action.id, action.accounts, action.next);
+  case GROUP_JOIN_REQUESTS_EXPAND_SUCCESS:
+    return appendToList(state, 'group_join_requests', action.id, action.accounts, action.next);
+  case GROUP_JOIN_REQUESTS_APPROVE_SUCCESS:
+  case GROUP_JOIN_REQUESTS_REJECT_SUCCESS:
+    return state.updateIn(['group_join_requests', action.groupId, 'items'], list => list.filterNot(item => item === action.id));
+  
   default:
     return state;
   }
diff --git a/app/models/concerns/group_interactions.rb b/app/models/concerns/group_interactions.rb
index 6bb973bd..02321862 100644
--- a/app/models/concerns/group_interactions.rb
+++ b/app/models/concerns/group_interactions.rb
@@ -17,6 +17,10 @@ module GroupInteractions
       follow_mapping(GroupAccount.where(group_id: target_group_ids, account_id: account_id, role: :moderator), :group_id)
     end
 
+    def requested_map(target_group_ids, account_id)
+      follow_mapping(GroupJoinRequest.where(group_id: target_group_ids, account_id: account_id), :group_id)
+    end
+
     def pinned?(status)
       group_pinned_statuses.where(group_id: status.group_id, status: status).exists?
     end
diff --git a/app/models/group.rb b/app/models/group.rb
index 5f2cced8..1673ac7e 100644
--- a/app/models/group.rb
+++ b/app/models/group.rb
@@ -35,6 +35,9 @@ class Group < ApplicationRecord
 
   has_many :group_accounts, inverse_of: :group, dependent: :destroy
   has_many :accounts, through: :group_accounts
+  
+  has_many :group_join_requests, inverse_of: :group, dependent: :destroy
+  has_many :join_requests, source: :account, through: :group_join_requests
 
   has_many :group_pinned_statuses, inverse_of: :group, dependent: :destroy
   has_many :pinned_statuses, source: :status, through: :group_pinned_statuses
diff --git a/app/models/group_join_request.rb b/app/models/group_join_request.rb
new file mode 100644
index 00000000..dbcb4a4e
--- /dev/null
+++ b/app/models/group_join_request.rb
@@ -0,0 +1,17 @@
+# == Schema Information
+#
+# Table name: group_join_requests
+#
+#  id         :bigint(8)        not null, primary key
+#  account_id :bigint(8)        not null
+#  group_id   :bigint(8)        not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+
+class GroupJoinRequest < ApplicationRecord
+  belongs_to :group
+  belongs_to :account
+
+  validates :account_id, uniqueness: { scope: :group_id }
+end
diff --git a/app/presenters/group_relationships_presenter.rb b/app/presenters/group_relationships_presenter.rb
index a8c9a8a7..7b4e4d53 100644
--- a/app/presenters/group_relationships_presenter.rb
+++ b/app/presenters/group_relationships_presenter.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class GroupRelationshipsPresenter
-    attr_reader :member, :admin, :moderator
+    attr_reader :member, :admin, :moderator, :requested
   
     def initialize(group_ids, current_account_id, **options)
       @group_ids          = group_ids.map { |a| a.is_a?(Group) ? a.id : a }
@@ -10,6 +10,7 @@ class GroupRelationshipsPresenter
       @member       = Group.member_map(@group_ids, @current_account_id)
       @admin        = Group.admin_map(@group_ids, @current_account_id)
       @moderator    = Group.moderator_map(@group_ids, @current_account_id)
+      @requested    = Group.requested_map(@group_ids, @current_account_id)
     end
   end
   
\ No newline at end of file
diff --git a/app/serializers/rest/group_relationship_serializer.rb b/app/serializers/rest/group_relationship_serializer.rb
index 233de329..4ad24a67 100644
--- a/app/serializers/rest/group_relationship_serializer.rb
+++ b/app/serializers/rest/group_relationship_serializer.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class REST::GroupRelationshipSerializer < ActiveModel::Serializer
-  attributes :id, :member, :admin, :moderator
+  attributes :id, :member, :admin, :moderator, :requested
 
   def id
     object.id.to_s
@@ -19,4 +19,8 @@ class REST::GroupRelationshipSerializer < ActiveModel::Serializer
     instance_options[:relationships].moderator[object.id] ? true : false
   end
 
+  def requested
+    instance_options[:relationships].requested[object.id] ? true : false
+  end
+
 end
diff --git a/config/routes.rb b/config/routes.rb
index 829feb4f..b3ad7628 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -440,6 +440,11 @@ Rails.application.routes.draw do
         resources :relationships, only: :index, controller: 'groups/relationships'
         resource :accounts, only: [:show, :create, :update, :destroy], controller: 'groups/accounts'
         resource :removed_accounts, only: [:show, :create, :destroy], controller: 'groups/removed_accounts'
+        resource :join_requests, only: [:show, :create], controller: 'groups/requests'
+        
+        post '/join_requests/approve', to: 'groups/requests#approve_request'
+        delete '/join_requests/reject', to: 'groups/requests#reject_request'
+
         resource :pin, only: :create, controller: 'groups/pins'
         post :unpin, to: 'groups/pins#destroy'
       end