closes #3821

[arvados.git] / 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 23b8788bcb17520b4e8ca71f493b514c0fcda9f3..a63fe6e21f1311a353392a2bc2f27f656147bee5 100644 (file)
--- a/apps/workbench/app/controllers/application_controller.rb
+++ b/apps/workbench/app/controllers/application_controller.rb
@@ -1250,6 +1250,49 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  # helper method to get the names of collection files selected
+  helper_method :selected_collection_files
+  def selected_collection_files params
+    link_uuids, coll_ids = params["selection"].partition do |sel_s|
+      ArvadosBase::resource_class_for_uuid(sel_s) == Link
+    end
+
+    unless link_uuids.empty?
+      Link.select([:head_uuid]).where(uuid: link_uuids).each do |link|
+        if ArvadosBase::resource_class_for_uuid(link.head_uuid) == Collection
+          coll_ids << link.head_uuid
+        end
+      end
+    end
+
+    uuids = []
+    pdhs = []
+    source_paths = Hash.new { |hash, key| hash[key] = [] }
+    coll_ids.each do |coll_id|
+      if m = CollectionsHelper.match(coll_id)
+        key = m[1] + m[2]
+        pdhs << key
+        source_paths[key] << m[4]
+      elsif m = CollectionsHelper.match_uuid_with_optional_filepath(coll_id)
+        key = m[1]
+        uuids << key
+        source_paths[key] << m[4]
+      end
+    end
+
+    unless pdhs.empty?
+      Collection.where(portable_data_hash: pdhs.uniq).
+          select([:uuid, :portable_data_hash]).each do |coll|
+        unless source_paths[coll.portable_data_hash].empty?
+          uuids << coll.uuid
+          source_paths[coll.uuid] = source_paths.delete(coll.portable_data_hash)
+        end
+      end
+    end
+
+    [uuids, source_paths]
+  end
+
   def wiselinks_layout
     'body'
   end