X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/cf7e30873ef4b92cc8ec099b2bb344391a070e93..66d12ae6dc72d45cc3cb3fcc007cb41371371616:/apps/workbench/app/controllers/application_controller.rb

diff --git a/apps/workbench/app/controllers/application_controller.rb b/apps/workbench/app/controllers/application_controller.rb
index 6b0492a90f..41d5566885 100644
--- a/apps/workbench/app/controllers/application_controller.rb
+++ b/apps/workbench/app/controllers/application_controller.rb
@@ -30,6 +30,7 @@ class ApplicationController < ActionController::Base
   end
 
   def render_error(opts)
+    opts = {status: 500}.merge opts
     respond_to do |f|
       # json must come before html here, so it gets used as the
       # default format when js is requested by the client. This lets
@@ -58,7 +59,19 @@ class ApplicationController < ActionController::Base
   end
 
   def index
-    @objects ||= model_class.limit(200).all
+    if params[:limit]
+      limit = params[:limit].to_i
+    else
+      limit = 200
+    end
+
+    if params[:offset]
+      offset = params[:offset].to_i
+    else
+      offset = 0
+    end
+
+    @objects ||= model_class.limit(limit).offset(offset).all
     respond_to do |f|
       f.json { render json: @objects }
       f.html { render }
@@ -96,8 +109,16 @@ class ApplicationController < ActionController::Base
   def update
     updates = params[@object.class.to_s.underscore.singularize.to_sym]
     updates.keys.each do |attr|
-      if @object.send(attr).is_a? Hash and updates[attr].is_a? String
-        updates[attr] = Oj.load updates[attr]
+      if @object.send(attr).is_a? Hash
+        if updates[attr].is_a? String
+          updates[attr] = Oj.load updates[attr]
+        end
+        if params[:merge] || params["merge_#{attr}".to_sym]
+          # Merge provided Hash with current Hash, instead of
+          # replacing.
+          updates[attr] = @object.send(attr).with_indifferent_access.
+            deep_merge(updates[attr].with_indifferent_access)
+        end
       end
     end
     if @object.update_attributes updates