2872: Merge branch 'master' into 2872-folder-nav

[arvados.git] / apps / workbench / app / models / collection.rb

diff --git a/apps/workbench/app/models/collection.rb b/apps/workbench/app/models/collection.rb
index bda5523d8cfdd9192aefc7923b9a7ba350f05e4e..008d108fd43ed8a7e0a3abe45cc380492b03ba4b 100644 (file)
--- a/apps/workbench/app/models/collection.rb
+++ b/apps/workbench/app/models/collection.rb
@@ -1,4 +1,19 @@
 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 self.goes_in_projects?
+    true
+  end
+
+  def content_summary
+    ApplicationController.helpers.human_readable_bytes_html(total_bytes) + " " + super
+  end
+
   def total_bytes
     if files
       tot = 0
@@ -6,10 +21,34 @@ class Collection < ArvadosBase
         tot += file[2]
       end
       tot
+    else
+      0
     end
   end
 
-  def attribute_editable?(attr)
+  def files_tree
+    return [] if files.empty?
+    tree = files.group_by { |file_spec| File.split(file_spec.first) }
+    # Fill in entries for empty directories.
+    tree.keys.map { |basedir, _| File.split(basedir) }.each do |splitdir|
+      until tree.include?(splitdir)
+        tree[splitdir] = []
+        splitdir = File.split(splitdir.first)
+      end
+    end
+    dir_to_tree = lambda do |dirname|
+      # First list subdirectories, with their files inside.
+      subnodes = tree.keys.select { |bd, td| (bd == dirname) and (td != '.') }
+        .sort.flat_map do |parts|
+        [parts + [nil]] + dir_to_tree.call(File.join(parts))
+      end
+      # Then extend that list with files in this directory.
+      subnodes + tree[File.split(dirname)]
+    end
+    dir_to_tree.call('.')
+  end
+
+  def attribute_editable? attr, *args
     false
   end
 
@@ -18,10 +57,11 @@ 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
+
 end