+require "arvados/keep"
+
class Collection < ArvadosBase
+ MD5_EMPTY = 'd41d8cd98f00b204e9800998ecf8427e'
+
+ def default_name
+ if Collection.is_empty_blob_locator? self.uuid
+ "Empty Collection"
+ else
+ super
+ end
+ end
+
+ # 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 manifest
+ if @manifest.nil? or manifest_text_changed?
+ @manifest = Keep::Manifest.new(manifest_text || "")
+ end
+ @manifest
+ end
+
+ def files
+ # This method provides backwards compatibility for code that relied on
+ # the old files field in API results. New code should use manifest
+ # methods directly.
+ manifest.files
+ end
+
+ def content_summary
+ ApplicationController.helpers.human_readable_bytes_html(total_bytes) + " " + super
+ end
+
def total_bytes
- if files
- tot = 0
- files.each do |file|
- tot += file[2]
+ manifest.files.inject(0) { |sum, filespec| sum + filespec.last }
+ end
+
+ def files_tree
+ tree = manifest.files.group_by do |file_spec|
+ File.split(file_spec.first)
+ end
+ return [] if tree.empty?
+ # 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
- tot
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)
- false
+ def editable_attributes
+ %w(name description manifest_text)
end
def self.creatable?
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 uuid
+ if self[:uuid].nil?
+ return self[:portable_data_hash]
+ else
+ super
+ end
+ end
+
+ def portable_data_hash
+ if self[:portable_data_hash].nil?
+ return self[:uuid]
+ else
+ super
+ end
+ end
+
+ def friendly_link_name lookup=nil
+ if self.respond_to? :name
+ self.name
+ else
+ self.portable_data_hash
+ end
+ end
+
+ def textile_attributes
+ [ 'description' ]
+ end
+
end