X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/b9b4502bcddeccd794614bf6979d643f9f350877..4a2dc82a1acce855151928abe0030e1dd7dbf728:/services/api/app/controllers/arvados/v1/collections_controller.rb

diff --git a/services/api/app/controllers/arvados/v1/collections_controller.rb b/services/api/app/controllers/arvados/v1/collections_controller.rb
index 939ca21257..6e77c12a1d 100644
--- a/services/api/app/controllers/arvados/v1/collections_controller.rb
+++ b/services/api/app/controllers/arvados/v1/collections_controller.rb
@@ -1,7 +1,22 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
 require "arvados/keep"
+require "trashable"
 
 class Arvados::V1::CollectionsController < ApplicationController
   include DbCurrentTime
+  include TrashableController
+
+  def self._index_requires_parameters
+    (super rescue {}).
+      merge({
+        include_trash: {
+          type: 'boolean', required: false, description: "Include collections whose is_trashed attribute is true."
+        },
+      })
+  end
 
   def create
     if resource_attrs[:uuid] and (loc = Keep::Locator.parse(resource_attrs[:uuid]))
@@ -12,8 +27,8 @@ class Arvados::V1::CollectionsController < ApplicationController
   end
 
   def find_objects_for_index
-    if params[:include_trash] || ['destroy', 'trash'].include?(action_name)
-      @objects = Collection.unscoped.readable_by(*@read_users)
+    if params[:include_trash] || ['destroy', 'trash', 'untrash'].include?(action_name)
+      @objects = Collection.readable_by(*@read_users, {include_trash: true})
     end
     super
   end
@@ -21,7 +36,19 @@ class Arvados::V1::CollectionsController < ApplicationController
   def find_object_by_uuid
     if loc = Keep::Locator.parse(params[:id])
       loc.strip_hints!
-      if c = Collection.readable_by(*@read_users).where({ portable_data_hash: loc.to_s }).limit(1).first
+
+      # It matters which Collection object we pick because we use it to get signed_manifest_text,
+      # the value of which is affected by the value of trash_at.
+      #
+      # From postgres doc: "By default, null values sort as if larger than any non-null
+      # value; that is, NULLS FIRST is the default for DESC order, and
+      # NULLS LAST otherwise."
+      #
+      # "trash_at desc" sorts null first, then latest to earliest, so
+      # it will select the Collection object with the longest
+      # available lifetime.
+
+      if c = Collection.readable_by(*@read_users).where({ portable_data_hash: loc.to_s }).order("trash_at desc").limit(1).first
         @object = {
           uuid: c.portable_data_hash,
           portable_data_hash: c.portable_data_hash,
@@ -44,24 +71,6 @@ class Arvados::V1::CollectionsController < ApplicationController
     end
   end
 
-  def destroy
-    if !@object.is_trashed
-      @object.update_attributes!(trash_at: db_current_time)
-    end
-    earliest_delete = (@object.trash_at +
-                       Rails.configuration.blob_signature_ttl.seconds)
-    if @object.delete_at > earliest_delete
-      @object.update_attributes!(delete_at: earliest_delete)
-    end
-    show
-  end
-
-  def trash
-    if !@object.is_trashed
-      @object.update_attributes!(trash_at: db_current_time)
-    end
-    show
-  end
 
   def find_collections(visited, sp, &b)
     case sp