X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/4c7323ea090e7570f962d821fa24c3ab20308e1e..f2574ec2e4ddef03c9504cd58741e73426ea1b17:/services/api/app/models/link.rb

diff --git a/services/api/app/models/link.rb b/services/api/app/models/link.rb
index cf4ffce8ed..af3918551e 100644
--- a/services/api/app/models/link.rb
+++ b/services/api/app/models/link.rb
@@ -1,5 +1,5 @@
 class Link < ArvadosModel
-  include AssignUuid
+  include HasUuid
   include KindAndEtag
   include CommonApiTemplate
   serialize :properties, Hash
@@ -8,6 +8,8 @@ class Link < ArvadosModel
   after_update :maybe_invalidate_permissions_cache
   after_create :maybe_invalidate_permissions_cache
   after_destroy :maybe_invalidate_permissions_cache
+  attr_accessor :head_kind, :tail_kind
+  validate :name_link_has_valid_name
 
   api_accessible :user, extend: :common do |t|
     t.add :tail_uuid
@@ -50,7 +52,7 @@ class Link < ArvadosModel
 
     # All users can grant permissions on objects they own
     head_obj = self.class.
-      kind_class(self.head_uuid).
+      resource_class_for_uuid(self.head_uuid).
       where('uuid=?',head_uuid).
       first
     if head_obj
@@ -80,4 +82,14 @@ class Link < ArvadosModel
       User.invalidate_permissions_cache
     end
   end
+
+  def name_link_has_valid_name
+    if link_class == 'name'
+      unless name.is_a? String and !name.empty?
+        errors.add('name', 'must be a non-empty string')
+      end
+    else
+      true
+    end
+  end
 end