X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/47042547e7873d63f764e85ace085a8da314afd3..51d54eb5a828cb60005c5c2d446d375b4ff8baac:/apps/workbench/app/models/arvados_base.rb

diff --git a/apps/workbench/app/models/arvados_base.rb b/apps/workbench/app/models/arvados_base.rb
index 3b5ac86f91..083db9133b 100644
--- a/apps/workbench/app/models/arvados_base.rb
+++ b/apps/workbench/app/models/arvados_base.rb
@@ -56,7 +56,7 @@ class ArvadosBase < ActiveRecord::Base
   end
 
   def self.columns
-    return @columns unless @columns.nil?
+    return @columns if @columns.andand.any?
     @columns = []
     @attribute_info ||= {}
     schema = arvados_api_client.discovery[:schemas][self.to_s.to_sym]
@@ -131,6 +131,10 @@ class ArvadosBase < ActiveRecord::Base
     ArvadosResourceList.new(self).limit(*args)
   end
 
+  def self.select(*args)
+    ArvadosResourceList.new(self).select(*args)
+  end
+
   def self.eager(*args)
     ArvadosResourceList.new(self).eager(*args)
   end
@@ -163,7 +167,9 @@ class ArvadosBase < ActiveRecord::Base
   def save
     obdata = {}
     self.class.columns.each do |col|
-      obdata[col.name.to_sym] = self.send(col.name.to_sym)
+      unless self.send(col.name.to_sym).nil? and !self.changed.include?(col.name)
+          obdata[col.name.to_sym] = self.send(col.name.to_sym)
+      end
     end
     obdata.delete :id
     postdata = { self.class.to_s.underscore => obdata }
@@ -299,6 +305,11 @@ class ArvadosBase < ActiveRecord::Base
     self.to_s.underscore.humanize
   end
 
+  # Array of strings that are names of attributes that should be rendered as textile.
+  def textile_attributes
+    []
+  end
+
   def self.creatable?
     current_user
   end
@@ -316,7 +327,7 @@ class ArvadosBase < ActiveRecord::Base
   end
 
   def attribute_editable?(attr, ever=nil)
-    if "created_at modified_at modified_by_user_uuid modified_by_client_uuid updated_at".index(attr.to_s)
+    if %w(created_at modified_at modified_by_user_uuid modified_by_client_uuid updated_at).include? attr.to_s
       false
     elsif not (current_user.andand.is_active)
       false