X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/fcb35ed42449c5ad58cd9ec62ff2ed353cf9d940..cbe594f580c26381d786d7b43d5227eb1d12620d:/services/api/app/controllers/application_controller.rb

diff --git a/services/api/app/controllers/application_controller.rb b/services/api/app/controllers/application_controller.rb
index 7e5b316c2d..c9c78794d6 100644
--- a/services/api/app/controllers/application_controller.rb
+++ b/services/api/app/controllers/application_controller.rb
@@ -104,8 +104,11 @@ class ApplicationController < ActionController::Base
     if e.respond_to? :backtrace and e.backtrace
       logger.error e.backtrace.collect { |x| x + "\n" }.join('')
     end
-    if @object and @object.errors and @object.errors.full_messages and not @object.errors.full_messages.empty?
+    if (@object and @object.respond_to? :errors and
+        @object.errors and @object.errors.full_messages and
+        not @object.errors.full_messages.empty?)
       errors = @object.errors.full_messages
+      logger.error errors.inspect
     else
       errors = [e.inspect]
     end
@@ -202,7 +205,17 @@ class ApplicationController < ActionController::Base
       end
     end
 
-    @objects = @objects.select(@select.map { |s| "#{table_name}.#{ActiveRecord::Base.connection.quote_column_name s.to_s}" }.join ", ") if @select
+    if @select
+      # Map attribute names in @select to real column names, resolve
+      # those to fully-qualified SQL column names, and pass the
+      # resulting string to the select method.
+      api_column_map = model_class.attributes_required_columns
+      columns_list = @select.
+        flat_map { |attr| api_column_map[attr] }.
+        uniq.
+        map { |s| "#{table_name}.#{ActiveRecord::Base.connection.quote_column_name s}" }
+      @objects = @objects.select(columns_list.join(", "))
+    end
     @objects = @objects.order(@orders.join ", ") if @orders.any?
     @objects = @objects.limit(@limit)
     @objects = @objects.offset(@offset)
@@ -351,6 +364,14 @@ class ApplicationController < ActionController::Base
   accept_param_as_json :reader_tokens, Array
 
   def render_list
+    if @select
+      # This information helps clients understand what they're seeing
+      # (Workbench always expects it), but they can't select it explicitly
+      # because it's not an SQL column.  Always add it.
+      # I believe this is safe because clients can always deduce what they're
+      # looking at by the returned UUID anyway.
+      @select |= ["kind"]
+    end
     @object_list = {
       :kind  => "arvados##{(@response_resource_name || resource_name).camelize(:lower)}List",
       :etag => "",