Merge branch 'tmlee/gitlab-ce-28004-consider-refactoring-member-view-by-using-presenter' into 'master'

Refactor member view by using presenter

Closes #28004

See merge request gitlab-org/gitlab-ce!15715

17 files changed, 167 insertions, 44 deletions

diff --git a/app/controllers/admin/groups_controller.rb b/app/controllers/admin/groups_controller.rb
index 2ce26de1768..a94726887d9 100644
--- a/app/controllers/admin/groups_controller.rb
+++ b/app/controllers/admin/groups_controller.rb
@@ -1,4 +1,6 @@
 class Admin::GroupsController < Admin::ApplicationController
+  include MembersPresentation
+
   before_action :group, only: [:edit, :update, :destroy, :project_update, :members_update]
 
   def index
@@ -10,8 +12,10 @@ class Admin::GroupsController < Admin::ApplicationController
 
   def show
     @group = Group.with_statistics.joins(:route).group('routes.path').find_by_full_path(params[:id])
-    @members = @group.members.order("access_level DESC").page(params[:members_page])
-    @requesters = AccessRequestsFinder.new(@group).execute(current_user)
+    @members = present_members(
+      @group.members.order("access_level DESC").page(params[:members_page]))
+    @requesters = present_members(
+      AccessRequestsFinder.new(@group).execute(current_user))
     @projects = @group.projects.with_statistics.page(params[:projects_page])
   end
 
diff --git a/app/controllers/admin/projects_controller.rb b/app/controllers/admin/projects_controller.rb
index 50cf2643390..3afe66c3566 100644
--- a/app/controllers/admin/projects_controller.rb
+++ b/app/controllers/admin/projects_controller.rb
@@ -1,4 +1,6 @@
 class Admin::ProjectsController < Admin::ApplicationController
+  include MembersPresentation
+
   before_action :project, only: [:show, :transfer, :repository_check]
   before_action :group, only: [:show, :transfer]
 
@@ -19,11 +21,14 @@ class Admin::ProjectsController < Admin::ApplicationController
 
   def show
     if @group
-      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page])
+      @group_members = present_members(
+        @group.members.order("access_level DESC").page(params[:group_members_page]))
     end
 
-    @project_members = @project.members.page(params[:project_members_page])
-    @requesters = AccessRequestsFinder.new(@project).execute(current_user)
+    @project_members = present_members(
+      @project.members.page(params[:project_members_page]))
+    @requesters = present_members(
+      AccessRequestsFinder.new(@project).execute(current_user))
   end
 
   def transfer
diff --git a/app/controllers/concerns/members_presentation.rb b/app/controllers/concerns/members_presentation.rb
new file mode 100644
index 00000000000..c0622516fd3
--- /dev/null
+++ b/app/controllers/concerns/members_presentation.rb
@@ -0,0 +1,11 @@
+module MembersPresentation
+  extend ActiveSupport::Concern
+
+  def present_members(members)
+    Gitlab::View::Presenter::Factory.new(
+      members,
+      current_user: current_user,
+      presenter_class: MembersPresenter
+    ).fabricate!
+  end
+end
diff --git a/app/controllers/groups/group_members_controller.rb b/app/controllers/groups/group_members_controller.rb
index 5919bf54468..21e77431176 100644
--- a/app/controllers/groups/group_members_controller.rb
+++ b/app/controllers/groups/group_members_controller.rb
@@ -1,5 +1,6 @@
 class Groups::GroupMembersController < Groups::ApplicationController
   include MembershipActions
+  include MembersPresentation
   include SortingHelper
 
   # Authorize
@@ -14,15 +15,17 @@ class Groups::GroupMembersController < Groups::ApplicationController
     @members = @members.search(params[:search]) if params[:search].present?
     @members = @members.sort(@sort)
     @members = @members.page(params[:page]).per(50)
-    @members.includes(:user)
+    @members = present_members(@members.includes(:user))
 
-    @requesters = AccessRequestsFinder.new(@group).execute(current_user)
+    @requesters = present_members(
+      AccessRequestsFinder.new(@group).execute(current_user))
 
     @group_member = @group.group_members.new
   end
 
   def update
     @group_member = @group.members_and_requesters.find(params[:id])
+      .present(current_user: current_user)
 
     return render_403 unless can?(current_user, :update_group_member, @group_member)
 
diff --git a/app/controllers/projects/project_members_controller.rb b/app/controllers/projects/project_members_controller.rb
index 5a01a59481b..d7372beb9d3 100644
--- a/app/controllers/projects/project_members_controller.rb
+++ b/app/controllers/projects/project_members_controller.rb
@@ -1,5 +1,6 @@
 class Projects::ProjectMembersController < Projects::ApplicationController
   include MembershipActions
+  include MembersPresentation
   include SortingHelper
 
   # Authorize
@@ -20,13 +21,14 @@ class Projects::ProjectMembersController < Projects::ApplicationController
       @group_links = @group_links.where(group_id: @project.invited_groups.search(params[:search]).select(:id))
     end
 
-    @project_members = @project_members.sort(@sort).page(params[:page])
-    @requesters = AccessRequestsFinder.new(@project).execute(current_user)
+    @project_members = present_members(@project_members.sort(@sort).page(params[:page]))
+    @requesters = present_members(AccessRequestsFinder.new(@project).execute(current_user))
     @project_member = @project.project_members.new
   end
 
   def update
     @project_member = @project.members_and_requesters.find(params[:id])
+      .present(current_user: current_user)
 
     return render_403 unless can?(current_user, :update_project_member, @project_member)
 
diff --git a/app/helpers/members_helper.rb b/app/helpers/members_helper.rb
index 41d471cc92f..a3129cac2b1 100644
--- a/app/helpers/members_helper.rb
+++ b/app/helpers/members_helper.rb
@@ -1,11 +1,4 @@
 module MembersHelper
-  # Returns a `<action>_<source>_member` association, e.g.:
-  # - admin_project_member, update_project_member, destroy_project_member
-  # - admin_group_member, update_group_member, destroy_group_member
-  def action_member_permission(action, member)
-    "#{action}_#{member.type.underscore}".to_sym
-  end
-
   def remove_member_message(member, user: nil)
     user = current_user if defined?(current_user)
 
diff --git a/app/models/member.rb b/app/models/member.rb
index 2fe5fda985f..c47145667b5 100644
--- a/app/models/member.rb
+++ b/app/models/member.rb
@@ -4,6 +4,7 @@ class Member < ActiveRecord::Base
   include Importable
   include Expirable
   include Gitlab::Access
+  include Presentable
 
   attr_accessor :raw_invite_token
 
diff --git a/app/presenters/group_member_presenter.rb b/app/presenters/group_member_presenter.rb
new file mode 100644
index 00000000000..8f53dfa105e
--- /dev/null
+++ b/app/presenters/group_member_presenter.rb
@@ -0,0 +1,15 @@
+class GroupMemberPresenter < MemberPresenter
+  private
+
+  def admin_member_permission
+    :admin_group_member
+  end
+
+  def update_member_permission
+    :update_group_member
+  end
+
+  def destroy_member_permission
+    :destroy_group_member
+  end
+end
diff --git a/app/presenters/member_presenter.rb b/app/presenters/member_presenter.rb
new file mode 100644
index 00000000000..7d2f9303b8f
--- /dev/null
+++ b/app/presenters/member_presenter.rb
@@ -0,0 +1,38 @@
+class MemberPresenter < Gitlab::View::Presenter::Delegated
+  presents :member
+
+  def access_level_roles
+    member.class.access_level_roles
+  end
+
+  def can_resend_invite?
+    invite? &&
+      can?(current_user, admin_member_permission, source)
+  end
+
+  def can_update?
+    can?(current_user, update_member_permission, member)
+  end
+
+  def can_remove?
+    can?(current_user, destroy_member_permission, member)
+  end
+
+  def can_approve?
+    request? && can_update?
+  end
+
+  private
+
+  def admin_member_permission
+    raise NotImplementedError
+  end
+
+  def update_member_permission
+    raise NotImplementedError
+  end
+
+  def destroy_member_permission
+    raise NotImplementedError
+  end
+end
diff --git a/app/presenters/members_presenter.rb b/app/presenters/members_presenter.rb
new file mode 100644
index 00000000000..e4aba37b69e
--- /dev/null
+++ b/app/presenters/members_presenter.rb
@@ -0,0 +1,15 @@
+class MembersPresenter < Gitlab::View::Presenter::Delegated
+  include Enumerable
+
+  presents :members
+
+  def to_ary
+    to_a
+  end
+
+  def each
+    members.each do |member|
+      yield member.present(current_user: current_user)
+    end
+  end
+end
diff --git a/app/presenters/project_member_presenter.rb b/app/presenters/project_member_presenter.rb
new file mode 100644
index 00000000000..7f42d2b70df
--- /dev/null
+++ b/app/presenters/project_member_presenter.rb
@@ -0,0 +1,15 @@
+class ProjectMemberPresenter < MemberPresenter
+  private
+
+  def admin_member_permission
+    :admin_project_member
+  end
+
+  def update_member_permission
+    :update_project_member
+  end
+
+  def destroy_member_permission
+    :destroy_project_member
+  end
+end
diff --git a/app/services/members/approve_access_request_service.rb b/app/services/members/approve_access_request_service.rb
index c13f289f61e..2a2bb0cae5b 100644
--- a/app/services/members/approve_access_request_service.rb
+++ b/app/services/members/approve_access_request_service.rb
@@ -35,8 +35,17 @@ module Members
     def can_update_access_requester?(access_requester, opts = {})
       access_requester && (
         opts[:force] ||
-        can?(current_user, action_member_permission(:update, access_requester), access_requester)
+        can?(current_user, update_member_permission(access_requester), access_requester)
       )
     end
+
+    def update_member_permission(member)
+      case member
+      when GroupMember
+        :update_group_member
+      when ProjectMember
+        :update_project_member
+      end
+    end
   end
 end
diff --git a/app/services/members/destroy_service.rb b/app/services/members/destroy_service.rb
index 46c505baf8b..05b93ac8fdb 100644
--- a/app/services/members/destroy_service.rb
+++ b/app/services/members/destroy_service.rb
@@ -36,7 +36,16 @@ module Members
     end
 
     def can_destroy_member?(member)
-      member && can?(current_user, action_member_permission(:destroy, member), member)
+      member && can?(current_user, destroy_member_permission(member), member)
+    end
+
+    def destroy_member_permission(member)
+      case member
+      when GroupMember
+        :destroy_group_member
+      when ProjectMember
+        :destroy_project_member
+      end
     end
   end
 end
diff --git a/app/views/projects/project_members/_team.html.haml b/app/views/projects/project_members/_team.html.haml
index e71d58ec26d..16bcf671c25 100644
--- a/app/views/projects/project_members/_team.html.haml
+++ b/app/views/projects/project_members/_team.html.haml
@@ -1,11 +1,13 @@
+- project = local_assigns.fetch(:project)
+- members = local_assigns.fetch(:members)
+
 .panel.panel-default
   .panel-heading.flex-project-members-panel
     %span.flex-project-title
       Members of
-      %strong
-        #{@project.name}
-    %span.badge= @project_members.total_count
-    = form_tag project_project_members_path(@project), method: :get, class: 'form-inline member-search-form flex-project-members-form'  do
+      %strong= project.name
+    %span.badge= members.total_count
+    = form_tag project_project_members_path(project), method: :get, class: 'form-inline member-search-form flex-project-members-form'  do
       .form-group
         = search_field_tag :search, params[:search], { placeholder: 'Find existing members by name', class: 'form-control', spellcheck: false }
         %button.member-search-btn{ type: "submit", "aria-label" => "Submit search" }
diff --git a/app/views/projects/project_members/index.html.haml b/app/views/projects/project_members/index.html.haml
index fd5d3ec56da..d81103c3a92 100644
--- a/app/views/projects/project_members/index.html.haml
+++ b/app/views/projects/project_members/index.html.haml
@@ -37,5 +37,5 @@
         - if @group_links.any?
           = render 'projects/project_members/groups', group_links: @group_links
 
-    = render 'projects/project_members/team', members: @project_members
+    = render 'projects/project_members/team', project: @project, members: @project_members
     = paginate @project_members, theme: "gitlab"
diff --git a/app/views/shared/members/_member.html.haml b/app/views/shared/members/_member.html.haml
index 2c27dd638a7..71878e93255 100644
--- a/app/views/shared/members/_member.html.haml
+++ b/app/views/shared/members/_member.html.haml
@@ -1,9 +1,9 @@
 - show_roles = local_assigns.fetch(:show_roles, true)
 - show_controls = local_assigns.fetch(:show_controls, true)
 - force_mobile_view = local_assigns.fetch(:force_mobile_view, false)
+- member = local_assigns.fetch(:member)
 - user = local_assigns.fetch(:user, member.user)
 - source = member.source
-- can_admin_member = can?(current_user, action_member_permission(:update, member), member)
 
 %li.member{ class: dom_class(member), id: dom_id(member) }
   %span.list-item-name
@@ -50,18 +50,17 @@
     .controls.member-controls
       - if show_controls && member.source == current_resource
 
-        - if member.invite? && can?(current_user, action_member_permission(:admin, member), member.source)
+        - if member.can_resend_invite?
           = link_to icon('paper-plane'), polymorphic_path([:resend_invite, member]),
                     method: :post,
                     class: 'btn btn-default prepend-left-10 hidden-xs',
                     title: 'Resend invite'
 
-        - if user != current_user && can_admin_member
+        - if user != current_user && member.can_update?
           = form_for member, remote: true, html: { class: 'form-horizontal js-edit-member-form' } do |f|
             = f.hidden_field :access_level
             .member-form-control.dropdown.append-right-5
               %button.dropdown-menu-toggle.js-member-permissions-dropdown{ type: "button",
-                disabled: !can_admin_member,
                 data: { toggle: "dropdown", field_name: "#{f.object_name}[access_level]" } }
                 %span.dropdown-toggle-text
                   = member.human_access
@@ -70,23 +69,22 @@
                 = dropdown_title("Change permissions")
                 .dropdown-content
                   %ul
-                    - member.class.access_level_roles.each do |role, role_id|
+                    - member.access_level_roles.each do |role, role_id|
                       %li
                         = link_to role, "javascript:void(0)",
                           class: ("is-active" if member.access_level == role_id),
                           data: { id: role_id, el_id: dom_id(member) }
             .prepend-left-5.clearable-input.member-form-control
-              = f.text_field :expires_at, class: 'form-control js-access-expiration-date js-member-update-control', placeholder: 'Expiration date', id: "member_expires_at_#{member.id}", disabled: !can_admin_member, data: { el_id: dom_id(member) }
+              = f.text_field :expires_at,
+                class: 'form-control js-access-expiration-date js-member-update-control',
+                placeholder: 'Expiration date',
+                id: "member_expires_at_#{member.id}",
+                data: { el_id: dom_id(member) }
               %i.clear-icon.js-clear-input
         - else
           %span.member-access-text= member.human_access
 
-        - if member.invite? && can?(current_user, action_member_permission(:admin, member), member.source)
-          = link_to 'Resend invite', polymorphic_path([:resend_invite, member]),
-                    method: :post,
-                    class: 'btn btn-default  prepend-left-10 visible-xs-block'
-
-        - elsif member.request? && can_admin_member
+        - if member.can_approve?
           = link_to polymorphic_path([:approve_access_request, member]),
                     method: :post,
                     class: 'btn btn-success prepend-left-10',
@@ -96,7 +94,7 @@
             - unless force_mobile_view
               = icon('check inverse', class: 'hidden-xs')
 
-        - if can?(current_user, action_member_permission(:destroy, member), member)
+        - if member.can_remove?
           - if current_user == user
             = link_to icon('sign-out', text: 'Leave'), polymorphic_path([:leave, member.source, :members]),
                       method: :delete,
diff --git a/app/views/shared/members/_requests.html.haml b/app/views/shared/members/_requests.html.haml
index 09b9944082f..1fbd6bcc4cb 100644
--- a/app/views/shared/members/_requests.html.haml
+++ b/app/views/shared/members/_requests.html.haml
@@ -1,10 +1,13 @@
+- membership_source = local_assigns.fetch(:membership_source)
+- requesters = local_assigns.fetch(:requesters)
 - force_mobile_view = local_assigns.fetch(:force_mobile_view, false)
 
-- if requesters.any?
-  .panel.panel-default.prepend-top-default{ class: ('panel-mobile' if force_mobile_view ) }
-    .panel-heading
-      Users requesting access to
-      %strong= membership_source.name
-      %span.badge= requesters.size
-    %ul.content-list.members-list
-      = render partial: 'shared/members/member', collection: requesters, as: :member, locals: { force_mobile_view: force_mobile_view }
+- return if requesters.empty?
+
+.panel.panel-default.prepend-top-default{ class: ('panel-mobile' if force_mobile_view ) }
+  .panel-heading
+    Users requesting access to
+    %strong= membership_source.name
+    %span.badge= requesters.size
+  %ul.content-list.members-list
+    = render partial: 'shared/members/member', collection: requesters, as: :member, locals: { force_mobile_view: force_mobile_view }