1 files changed, 21 insertions, 5 deletions
diff --git a/app/models/route.rb b/app/models/route.rb
index 97e8a6ad9e9..7ba3ec06041 100644
--- a/app/models/route.rb
+++ b/app/models/route.rb
@@ -8,6 +8,8 @@ class Route < ActiveRecord::Base
     presence: true,
     uniqueness: { case_sensitive: false }
 
+  validate :ensure_permanent_paths
+
   after_create :delete_conflicting_redirects
   after_update :delete_conflicting_redirects, if: :path_changed?
   after_update :create_redirect_for_old_path
@@ -40,7 +42,7 @@ class Route < ActiveRecord::Base
         # We are not calling route.delete_conflicting_redirects here, in hopes
         # of avoiding deadlocks. The parent (self, in this method) already
         # called it, which deletes conflicts for all descendants.
-        route.create_redirect(old_path) if attributes[:path]
+        route.create_redirect(old_path, permanent: permanent_redirect?) if attributes[:path]
       end
     end
   end
@@ -50,16 +52,30 @@ class Route < ActiveRecord::Base
   end
 
   def conflicting_redirects
-    RedirectRoute.matching_path_and_descendants(path)
+    RedirectRoute.temporary.matching_path_and_descendants(path)
   end
 
-  def create_redirect(path)
-    RedirectRoute.create(source: source, path: path)
+  def create_redirect(path, permanent: false)
+    RedirectRoute.create(source: source, path: path, permanent: permanent)
   end
 
   private
 
   def create_redirect_for_old_path
-    create_redirect(path_was) if path_changed?
+    create_redirect(path_was, permanent: permanent_redirect?) if path_changed?
+  end
+
+  def permanent_redirect?
+    source_type != "Project"
+  end
+
+  def ensure_permanent_paths
+    return if path.nil?
+
+    errors.add(:path, "#{path} has been taken before. Please use another one") if conflicting_redirect_exists?
+  end
+
+  def conflicting_redirect_exists?
+    RedirectRoute.permanent.matching_path_and_descendants(path).exists?
   end
 end