handle already existing team membership

Author: thedumbtechguy

packages/hacker_dashboard_portal/app/controllers/hacker_dashboard_portal/hackathon/team_memberships_controller.rb

@@ -8,6 +8,17 @@ class HackerDashboardPortal::Hackathon::TeamMembershipsController < ::Hackathon:
 
   def present_scoped_entity? = true
 
+  def new
+    authorize_current! resource_class
+
+    unless current_user.team.nil?
+      redirect_to root_path
+      return
+    end
+
+    super
+  end
+
   private
 
   def resource_params

packages/hacker_dashboard_portal/app/policies/hacker_dashboard_portal/hackathon/team_membership_policy.rb

@@ -2,6 +2,10 @@ class HackerDashboardPortal::Hackathon::TeamMembershipPolicy < ::Hackathon::Team
   authorize :invitation, allow_nil: true
   # Core attributes
 
+  def new?
+    true
+  end
+
   def create?
     user.team.nil?
   end