action and permission for dialog to show value'n'comment

modules/overviews/app/controllers/overviews/project_custom_fields_controller.rb

@@ -35,6 +35,15 @@ class Overviews::ProjectCustomFieldsController < ApplicationController
   before_action :find_project_custom_field
   before_action :authorize
 
+  def show
+    respond_with_dialog(
+      Overviews::ProjectCustomFields::ShowDialogComponent.new(
+        project: @project,
+        project_custom_field: @custom_field
+      )
+    )
+  end
+
   def edit
     respond_with_dialog(
       Overviews::ProjectCustomFields::EditDialogComponent.new(

modules/overviews/lib/overviews/engine.rb

@@ -54,6 +54,7 @@ module Overviews
         OpenProject::AccessControl.permission(:view_project_attributes)
           .controller_actions
           .push(
+            "overviews/project_custom_fields/show",
             "overviews/overviews/project_custom_fields_sidebar"
           )
 

spec/permissions/edit_project_attributes_spec.rb

@@ -35,6 +35,9 @@ RSpec.describe Overviews::ProjectCustomFieldsController, "edit_project_attribute
                type: :controller do
   include PermissionSpecs
 
+  # render dialog displaying project attributes
+  check_permission_required_for("overviews/project_custom_fields#show", :view_project_attributes)
+
   # render dialog with inputs for editing project attributes with edit_project permission
   check_permission_required_for("overviews/project_custom_fields#edit", :edit_project_attributes)