Rename owned_items to contents, remove user method, update docs.
[arvados.git] / apps / workbench / app / models / collection.rb
index 6bc55bde3d21199fda4c31fa3143800d9b03c026..5460e9a6e01641192b2ee0c9c0c12d9773e293e3 100644 (file)
@@ -1,5 +1,12 @@
 class Collection < ArvadosBase
 
+  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 total_bytes
     if files
       tot = 0