Factorize members mails into a new Emails::Members module

app/mailers/emails/groups.rb

-module Emails
-  module Groups
-    def group_access_requested_email(group_member_id)
-      setup_group_member_mail(group_member_id)
-
-      @requester = @group_member.created_by
-
-      group_admins = User.where(id: @group.group_members.admins.pluck(:user_id)).pluck(:notification_email)
-
-      mail(to: group_admins,
-           subject: subject("Request to join #{@group.name} group"))
-    end
-
-    def group_access_granted_email(group_member_id)
-      setup_group_member_mail(group_member_id)
-
-      @current_user = @group_member.user
-
-      mail(to: @current_user.notification_email,
-           subject: subject("Access to #{@group.name} group was granted"))
-    end
-
-    def group_access_denied_email(group_id, user_id)
-      @group = Group.find(group_id)
-      @current_user = User.find(user_id)
-      @target_url = group_url(@group)
-
-      mail(to: @current_user.notification_email,
-           subject: subject("Access to #{@group.name} group was denied"))
-    end
-
-    def group_member_invited_email(group_member_id, token)
-      setup_group_member_mail(group_member_id)
-
-      @token = token
-      @current_user = @group_member.user
-
-      mail(to: @group_member.invite_email,
-           subject: "Invitation to join group #{@group.name}")
-    end
-
-    def group_invite_accepted_email(group_member_id)
-      setup_group_member_mail(group_member_id)
-      return if @group_member.created_by.nil?
-
-      @current_user = @group_member.created_by
-
-      mail(to: @current_user.notification_email,
-           subject: subject("Invitation accepted"))
-    end
-
-    def group_invite_declined_email(group_id, invite_email, access_level, created_by_id)
-      return if created_by_id.nil?
-
-      @group = Group.find(group_id)
-      @current_user = @created_by = User.find(created_by_id)
-      @access_level = access_level
-      @invite_email = invite_email
-
-      @target_url = group_url(@group)
-      mail(to: @created_by.notification_email,
-           subject: subject("Invitation declined"))
-    end
-
-    private
-
-    def setup_group_member_mail(group_member_id)
-      @group_member = GroupMember.find(group_member_id)
-      @group = @group_member.group
-      @target_url = group_url(@group)
-    end
-  end
-end

app/mailers/emails/members.rb

+module Emails
+  module Members
+    extend ActiveSupport::Concern
+
+    included do
+      attr_reader :member_target_type
+      helper_method :member, :access_requester, :member_target_type, :member_target_name, :member_target_url
+    end
+
+    def member_access_requested_email(member_target_type, member_id)
+      @member_target_type = member_target_type
+      @member_id = member_id
+
+      admins = User.where(id: target.public_send(members_association).admins.pluck(:user_id)).pluck(:notification_email)
+
+      mail(to: admins,
+           subject: subject("Request to join the #{member_target_name} #{member_target_type}"))
+    end
+
+    def member_access_granted_email(member_target_type, member_id)
+      @member_target_type = member_target_type
+      @member_id = member_id
+
+      mail(to: member.user.notification_email,
+           subject: subject("Access to the #{member_target_name} #{member_target_type} was granted"))
+    end
+
+    def member_access_denied_email(member_target_type, target_id, user_id)
+      @member_target_type = member_target_type
+      @target = target_class.find(target_id)
+
+      mail(to: User.find(user_id).notification_email,
+           subject: subject("Access to the #{member_target_name} #{member_target_type} was denied"))
+    end
+
+    def member_invited_email(member_target_type, member_id, token)
+      @member_target_type = member_target_type
+      @member_id = member_id
+      @token = token
+
+      mail(to: member.invite_email,
+           subject: "Invitation to join the #{member_target_name} #{member_target_type}")
+    end
+
+    def member_invite_accepted_email(member_target_type, member_id)
+      @member_target_type = member_target_type
+      @member_id = member_id
+      return if access_requester.nil?
+
+      mail(to: access_requester.notification_email,
+           subject: subject('Invitation accepted'))
+    end
+
+    def member_invite_declined_email(member_target_type, target_id, invite_email, created_by_id)
+      return if created_by_id.nil?
+
+      @member_target_type = member_target_type
+      @target = target_class.find(target_id)
+      @invite_email = invite_email
+
+      mail(to: User.find(created_by_id).notification_email,
+           subject: subject('Invitation declined'))
+    end
+
+    def member
+      @member ||= member_class.find(@member_id)
+    end
+
+    def access_requester
+      @access_requester ||= member.created_by
+    end
+
+    def member_target_name
+      case member_target_type
+      when 'project'
+        target.name_with_namespace
+      else
+        target.name
+      end
+    end
+
+    def member_target_url
+      @member_target_url ||= target.web_url
+    end
+
+    private
+
+    def target
+      @target ||= member.public_send(member_target_type)
+    end
+
+    def target_class
+      @target_class ||= member_target_type.classify.constantize
+    end
+
+    def member_class
+      @member_class ||= "#{member_target_type.classify}Member".constantize
+    end
+
+    def members_association
+      @members_association ||= member_class.to_s.tableize
+    end
+  end
+end

app/mailers/emails/projects.rb

 module Emails
   module Projects
-    def project_access_requested_email(project_member_id)
-      setup_project_member_mail(project_member_id)
-
-      @requester = @project_member.created_by
-
-      project_admins = User.where(id: @project.project_members.admins.pluck(:user_id)).pluck(:notification_email)
-
-      mail(to: project_admins,
-           subject: subject("Request to join #{@project.name_with_namespace} project"))
-    end
-
-    def project_access_granted_email(project_member_id)
-      setup_project_member_mail(project_member_id)
-
-      @current_user = @project_member.user
-
-      mail(to: @current_user.notification_email,
-           subject: subject("Access to #{@project.name_with_namespace} project was granted"))
-    end
-
-    def project_access_denied_email(project_id, user_id)
-      @project = Project.find(project_id)
-      @current_user = User.find(user_id)
-      @target_url = namespace_project_url(@project.namespace, @project)
-
-      mail(to: @current_user.notification_email,
-           subject: subject("Access to #{@project.name_with_namespace} project was denied"))
-    end
-
-    def project_member_invited_email(project_member_id, token)
-      setup_project_member_mail(project_member_id)
-
-      @token = token
-      @current_user = @project_member.user
-
-      mail(to: @project_member.invite_email,
-           subject: "Invitation to join project #{@project.name_with_namespace}")
-    end
-
-    def project_invite_accepted_email(project_member_id)
-      setup_project_member_mail(project_member_id)
-      return if @project_member.created_by.nil?
-
-      @current_user = @project_member.created_by
-
-      mail(to: @project_member.created_by.notification_email,
-           subject: subject("Invitation accepted"))
-    end
-
-    def project_invite_declined_email(project_id, invite_email, access_level, created_by_id)
-      return if created_by_id.nil?
-
-      @project = Project.find(project_id)
-      @current_user = @created_by = User.find(created_by_id)
-      @access_level = access_level
-      @invite_email = invite_email
-
-      @target_url = namespace_project_url(@project.namespace, @project)
-
-      mail(to: @created_by.notification_email,
-           subject: subject("Invitation declined"))
-    end
-
     def project_was_moved_email(project_id, user_id, old_path_with_namespace)
       @current_user = @user = User.find user_id
       @project = Project.find project_id
@@ -88,13 +25,5 @@ module Emails
            reply_to:  @message.reply_to,
            subject:   @message.subject)
     end
-
-    private
-
-    def setup_project_member_mail(project_member_id)
-      @project_member = ProjectMember.find(project_member_id)
-      @project = @project_member.project
-      @target_url = namespace_project_url(@project.namespace, @project)
-    end
   end
 end

app/mailers/notify.rb

@@ -6,8 +6,8 @@ class Notify < BaseMailer
   include Emails::Notes
   include Emails::Projects
   include Emails::Profile
-  include Emails::Groups
   include Emails::Builds
+  include Emails::Members
 
   add_template_helper MergeRequestsHelper
   add_template_helper DiffHelper

app/models/group.rb

@@ -59,6 +59,10 @@ class Group < Namespace
     "#{self.class.reference_prefix}#{name}"
   end
 
+  def web_url
+    Gitlab::Routing.url_helpers.group_url(self)
+  end
+
   def human_name
     name
   end

app/services/notification_service.rb

@@ -175,23 +175,24 @@ class NotificationService
 
   # Project access request
   def new_project_access_request(project_member)
-    mailer.project_access_requested_email(project_member.id).deliver_later
+    mailer.member_access_requested_email('project', project_member.id).deliver_later
   end
 
   def decline_project_access_request(project, user)
-    mailer.project_access_denied_email(project.id, user.id).deliver_later
+    mailer.member_access_denied_email('project', project.id, user.id).deliver_later
   end
 
   def invite_project_member(project_member, token)
-    mailer.project_member_invited_email(project_member.id, token).deliver_later
+    mailer.member_invited_email('project', project_member.id, token).deliver_later
   end
 
   def accept_project_invite(project_member)
-    mailer.project_invite_accepted_email(project_member.id).deliver_later
+    mailer.member_invite_accepted_email('project', project_member.id).deliver_later
   end
 
   def decline_project_invite(project_member)
-    mailer.project_invite_declined_email(
+    mailer.member_invite_declined_email(
+      'project',
       project_member.project.id,
       project_member.invite_email,
       project_member.access_level,
@@ -200,32 +201,33 @@ class NotificationService
   end
 
   def new_project_member(project_member)
-    mailer.project_access_granted_email(project_member.id).deliver_later
+    mailer.member_access_granted_email('project', project_member.id).deliver_later
   end
 
   def update_project_member(project_member)
-    mailer.project_access_granted_email(project_member.id).deliver_later
+    mailer.member_access_granted_email('project', project_member.id).deliver_later
   end
 
   # Group access request
   def new_group_access_request(group_member)
-    mailer.group_access_requested_email(group_member.id).deliver_later
+    mailer.member_access_requested_email('group', group_member.id).deliver_later
   end
 
   def decline_group_access_request(group, user)
-    mailer.group_access_denied_email(group.id, user.id).deliver_later
+    mailer.member_access_denied_email('group', group.id, user.id).deliver_later
   end
 
   def invite_group_member(group_member, token)
-    mailer.group_member_invited_email(group_member.id, token).deliver_later
+    mailer.member_invited_email('group', group_member.id, token).deliver_later
   end
 
   def accept_group_invite(group_member)
-    mailer.group_invite_accepted_email(group_member.id).deliver_later
+    mailer.member_invite_accepted_email(group_member.id).deliver_later
   end
 
   def decline_group_invite(group_member)
-    mailer.group_invite_declined_email(
+    mailer.member_invite_declined_email(
+      'group',
       group_member.group.id,
       group_member.invite_email,
       group_member.access_level,
@@ -234,11 +236,11 @@ class NotificationService
   end
 
   def new_group_member(group_member)
-    mailer.group_access_granted_email(group_member.id).deliver_later
+    mailer.member_access_granted_email('group', group_member.id).deliver_later
   end
 
   def update_group_member(group_member)
-    mailer.group_access_granted_email(group_member.id).deliver_later
+    mailer.member_access_granted_email('group', group_member.id).deliver_later
   end
 
   def project_was_moved(project, old_path_with_namespace)

app/views/notify/group_access_denied_email.html.haml

-%p
-  Your request to join group #{link_to @group.name, @target_url} has been denied.

app/views/notify/group_access_denied_email.text.erb

-Your request to join group <%= @group.name %> has been denied.
-
-<%= @target_url %>

app/views/notify/group_access_requested_email.html.haml

-%p
-  #{link_to @requester.name, @requester} requested #{@group_member.human_access}
-  access to group #{link_to @group.name, @target_url}.

app/views/notify/group_access_requested_email.text.erb

-<%= @requester.name %> (<%= user_url(@requester) %>) requested <%= @group_member.human_access %> access to group <%= @group.name %>
-
-<%= @target_url %>

app/views/notify/project_access_denied_email.html.haml → app/views/notify/member_access_denied_email.html.haml

 %p
-  Your request to join project #{link_to @project.name_with_namespace, @target_url}
+  Your request to join the
+  #{link_to member_target_name, member_target_url} #{member_target_type}
   has been denied.

app/views/notify/member_access_denied_email.text.erb

+Your request to join the <%= member_target_name %> <%= member_target_type %> has been denied.
+
+<%= member_target_url %>

app/views/notify/member_access_granted_email.html.haml

+%p
+  You have been granted #{member.human_access} access to the
+  #{link_to member_target_name, member_target_url} #{member_target_type}.

app/views/notify/member_access_granted_email.text.erb

+You have been granted <%= member.human_access %> access to the <%= member_target_name %> <%= member_target_type %>.
+
+<%= member_target_url %>

app/views/notify/member_access_requested_email.html.haml

+%p
+  #{link_to access_requester.name, access_requester} requested #{member.human_access}
+  access to the #{link_to member_target_name, member_target_url} #{member_target_type}.

app/views/notify/member_access_requested_email.text.erb

+<%= access_requester.name %> (<%= user_url(access_requester) %>) requested <%= member.human_access %> access to the <%= member_target_name %> <%= member_target_type %>.
+
+<%= member_target_url %>

app/views/notify/member_invite_accepted_email.html.haml

+%p
+  #{member.invite_email}, now known as
+  #{link_to member.user.name, user_url(member.user)},
+  has accepted your invitation to join the
+  #{link_to member_target_name, member_target_url} #{member_target_type}.

app/views/notify/member_invite_accepted_email.text.erb

+<%= member.invite_email %>, now known as <%= member.user.name %>, has accepted your invitation to join the <%= member_target_name %> <%= member_target_type %>.
+
+<%= member_target_url %>

app/views/notify/member_invite_declined_email.html.haml

+%p
+  #{@invite_email}
+  has declined your invitation to join the
+  #{link_to member_target_name, member_target_url} #{member_target_type}.

app/views/notify/member_invite_declined_email.text.erb

+<%= @invite_email %> has declined your invitation to join the <%= member_target_name %> <%= member_target_type %>.
+
+<%= member_target_url %>

app/views/notify/member_invited_email.html.haml

+%p
+  You have been invited
+  - if access_requester
+    by
+    = link_to access_requester.name, user_url(access_requester)
+  to join the
+  = link_to member_target_name, member_target_url
+  #{member_target_type} as #{member.human_access}.
+
+%p
+  = link_to 'Accept invitation', invite_url(@token)
+  or
+  = link_to 'decline', decline_invite_url(@token)

app/views/notify/member_invited_email.text.erb

+You have been invited <%= "by #{access_requester.name} " if access_requester %>to join the <%= member_target_name %> <%= member_target_type %> as <%= member.human_access %>.
+
+Accept invitation: <%= invite_url(@token) %>
+Decline invitation: <%= decline_invite_url(@token) %>

app/views/notify/project_access_denied_email.text.erb

-Your request to join project <%= @project.name_with_namespace %> has been denied.
-
-<%= @target_url %>

app/views/notify/project_access_granted_email.html.haml

-%p
-  You have been granted #{@project_member.human_access} access to project
-  #{link_to @project.name_with_namespace, @target_url}.

app/views/notify/project_access_granted_email.text.erb

-You have been granted <%= @project_member.human_access %> access to project <%= @project.name_with_namespace %>.
-
-<%= @target_url %>

app/views/notify/project_access_requested_email.html.haml

-%p
-  #{link_to @requester.name, @requester} requested #{@project_member.human_access}
-  access to project #{link_to @project.name_with_namespace, @target_url}.

app/views/notify/project_access_requested_email.text.erb

-<%= @requester.name %> (<%= user_url(@requester) %>) requested <%= @project_member.human_access %> access to project <%= @project.name_with_namespace %>.
-
-<%= @target_url %>

app/views/notify/project_invite_accepted_email.html.haml

-%p
-  #{@project_member.invite_email}, now known as
-  #{link_to @project_member.user.name, user_url(@project_member.user)},
-  has accepted your invitation to join project
-  #{link_to @project.name_with_namespace, namespace_project_url(@project.namespace, @project)}.
-

app/views/notify/project_invite_accepted_email.text.erb

-<%= @project_member.invite_email %>, now known as <%= @project_member.user.name %>, has accepted your invitation to join project <%= @project.name_with_namespace %>.
-
-<%= namespace_project_url(@project.namespace, @project) %>

app/views/notify/project_invite_declined_email.html.haml

-%p
-  #{@invite_email}
-  has declined your invitation to join project
-  #{link_to @project.name_with_namespace, namespace_project_url(@project.namespace, @project)}.
-

app/views/notify/project_invite_declined_email.text.erb

-<%= @invite_email %> has declined your invitation to join project <%= @project.name_with_namespace %>.
-
-<%= namespace_project_url(@project.namespace, @project) %>

app/views/notify/project_member_invited_email.html.haml

-%p
-  You have been invited 
-  - if inviter = @project_member.created_by
-    by
-    = link_to inviter.name, user_url(inviter)
-  to join project
-  = link_to @project.name_with_namespace, namespace_project_url(@project.namespace, @project)
-  as #{@project_member.human_access}.
-
-%p
-  = link_to 'Accept invitation', invite_url(@token)
-  or
-  = link_to 'decline', decline_invite_url(@token)

app/views/notify/project_member_invited_email.text.erb

-You have been invited <%= "by #{@project_member.created_by.name} " if @project_member.created_by %>to join project <%= @project.name_with_namespace %> as <%= @project_member.human_access %>.
-
-Accept invitation: <%= invite_url(@token) %>
-Decline invitation: <%= decline_invite_url(@token) %>