X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/6d59f29ba37c608e4b01b27a2fa78bc065fdc2a6..03395937ba05b9e3192e346a355c691f45cc7c85:/apps/workbench/app/models/collection.rb

diff --git a/apps/workbench/app/models/collection.rb b/apps/workbench/app/models/collection.rb
index e22a5f72f4..6022d82433 100644
--- a/apps/workbench/app/models/collection.rb
+++ b/apps/workbench/app/models/collection.rb
@@ -1,4 +1,17 @@
 class Collection < ArvadosBase
+  include ApplicationHelper
+
+  MD5_EMPTY = 'd41d8cd98f00b204e9800998ecf8427e'
+
+  # Return true if the given string is the locator of a zero-length blob
+  def self.is_empty_blob_locator? locator
+    !!locator.to_s.match("^#{MD5_EMPTY}(\\+.*)?\$")
+  end
+
+  def content_summary
+    human_readable_bytes_html(total_bytes) + " " + super
+  end
+
   def total_bytes
     if files
       tot = 0
@@ -18,29 +31,11 @@ class Collection < ArvadosBase
   end
 
   def provenance
-    $arvados_api_client.api "collections/#{self.uuid}/", "provenance"
+    arvados_api_client.api "collections/#{self.uuid}/", "provenance"
   end
 
   def used_by
-    $arvados_api_client.api "collections/#{self.uuid}/", "used_by"
+    arvados_api_client.api "collections/#{self.uuid}/", "used_by"
   end
 
-  # def selection_label
-  #   name = ''
-  #   i = 0 
-  #   if self.files.length > 3
-  #     m = 3
-  #   else
-  #     m = self.files.length 
-  #   end
-  #   while i < m
-  #     name += "#{self.files[i][1]}"
-  #     i += 1
-  #     name += ", " if i < m
-  #   end
-  #   if i < self.files.length
-  #     name += "&ellip;"
-  #   end
-  #   name
-  # end
 end