Update ProjectTeam#max_member_access_for_user_ids to use project authorizations

app/models/project.rb

@@ -126,6 +126,7 @@ class Project < ActiveRecord::Base
   has_many :hooks,              dependent: :destroy, class_name: 'ProjectHook'
   has_many :protected_branches, dependent: :destroy
+  has_many :project_authorizations, dependent: :destroy
   has_many :project_members, -> { where(requested_at: nil) }, dependent: :destroy, as: :source
   alias_method :members, :project_members
   has_many :users, through: :project_members

app/models/project_team.rb

@@ -169,54 +169,21 @@ class ProjectTeam
     # Lookup only the IDs we need
     user_ids = user_ids - access.keys
-    if user_ids.present?
-      user_ids.each { |id| access[id] = Gitlab::Access::NO_ACCESS }
-
-      member_access = project.members.access_for_user_ids(user_ids)
-      merge_max!(access, member_access)
-
-      if group
-        group_access = group.members.access_for_user_ids(user_ids)
-        merge_max!(access, group_access)
-      end
-
-      # Each group produces a list of maximum access level per user. We take the
-      # max of the values produced by each group.
-      if project_shared_with_group?
-        project.project_group_links.each do |group_link|
-          invited_access = max_invited_level_for_users(group_link, user_ids)
-          merge_max!(access, invited_access)
-        end
-      end
-    end
-
+    users_access = project.project_authorizations.
+      where(user: user_ids).
+      group(:user_id).
+      maximum(:access_level)
+    access.merge!(users_access)
     access
   end
   def max_member_access(user_id)
-    max_member_access_for_user_ids([user_id])[user_id]
+    max_member_access_for_user_ids([user_id])[user_id] || Gitlab::Access::NO_ACCESS
   end
   private
-  # For a given group, return the maximum access level for the user. This is the min of
-  # the invited access level of the group and the access level of the user within the group.
-  # For example, if the group has been given DEVELOPER access but the member has MASTER access,
-  # the user should receive only DEVELOPER access.
-  def max_invited_level_for_users(group_link, user_ids)
-    invited_group = group_link.group
-    capped_access_level = group_link.group_access
-    access = invited_group.group_members.access_for_user_ids(user_ids)
-
-    # If the user is not in the list, assume he/she does not have access
-    missing_users = user_ids - access.keys
-    missing_users.each { |id| access[id] = Gitlab::Access::NO_ACCESS }
-
-    # Cap the maximum access by the invited level access
-    access.each { |key, value| access[key] = [value, capped_access_level].min }
-  end
-
   def fetch_members(level = nil)
     project_members = project.members
     group_members = group ? group.members : []
@@ -240,10 +207,6 @@ class ProjectTeam
     project.group
   end
-  def merge_max!(first_hash, second_hash)
-    first_hash.merge!(second_hash) { |_key, old, new| old > new ? old : new }
-  end
-
   def project_shared_with_group?
     project.invited_groups.any? && project.allowed_to_share_with_group?
   end

spec/lib/gitlab/import_export/all_models.yml

@@ -186,6 +186,8 @@ project:
 - environments
 - deployments
 - project_feature
+- authorized_users
+- project_authorizations
 award_emoji:
 - awardable
 - user

spec/models/project_team_spec.rb

@@ -37,7 +37,7 @@ describe ProjectTeam, models: true do
   context 'group project' do
     let(:group) { create(:group) }
-    let(:project) { create(:empty_project, group: group) }
+    let!(:project) { create(:empty_project, group: group) }
     before do
       group.add_master(master)
@@ -178,9 +178,9 @@ describe ProjectTeam, models: true do
     it 'returns Master role' do
       user = create(:user)
       group = create(:group)
-      group.add_master(user)
-      project = build_stubbed(:empty_project, namespace: group)
+      project = create(:empty_project, namespace: group)
+      group.add_master(user)
       expect(project.team.human_max_access(user.id)).to eq 'Master'
     end
@@ -188,9 +188,9 @@ describe ProjectTeam, models: true do
     it 'returns Owner role' do
       user = create(:user)
       group = create(:group)
-      group.add_owner(user)
-      project = build_stubbed(:empty_project, namespace: group)
+      project = create(:empty_project, namespace: group)
+      group.add_owner(user)
       expect(project.team.human_max_access(user.id)).to eq 'Owner'
     end
@@ -244,7 +244,7 @@ describe ProjectTeam, models: true do
     context 'group project' do
       let(:group) { create(:group, :access_requestable) }
-      let(:project) { create(:empty_project, group: group) }
+      let!(:project) { create(:empty_project, group: group) }
       before do
         group.add_master(master)