+
+ helper_method :project_breadcrumbs
+ def project_breadcrumbs
+ crumbs = []
+ current = @name_link || @object
+ while current
+ if current.is_a?(Group) and current.group_class.in?(['project','folder'])
+ crumbs.prepend current
+ end
+ if current.is_a? Link
+ current = Group.find?(current.tail_uuid)
+ else
+ current = Group.find?(current.owner_uuid)
+ end
+ end
+ crumbs
+ end
+
+ helper_method :current_project_uuid
+ def current_project_uuid
+ if @object.is_a? Group and @object.group_class.in?(['project','folder'])
+ @object.uuid
+ elsif @name_link.andand.tail_uuid
+ @name_link.tail_uuid
+ elsif @object and resource_class_for_uuid(@object.owner_uuid) == Group
+ @object.owner_uuid
+ else
+ nil
+ end
+ end
+
+ # helper method to get links for given object or uuid
+ helper_method :links_for_object
+ def links_for_object object_or_uuid
+ raise ArgumentError, 'No input argument' unless object_or_uuid
+ preload_links_for_objects([object_or_uuid])
+ uuid = object_or_uuid.is_a?(String) ? object_or_uuid : object_or_uuid.uuid
+ @all_links_for[uuid] ||= []
+ end
+
+ # helper method to preload links for given objects and uuids
+ helper_method :preload_links_for_objects
+ def preload_links_for_objects objects_and_uuids
+ @all_links_for ||= {}
+
+ raise ArgumentError, 'Argument is not an array' unless objects_and_uuids.is_a? Array
+ return @all_links_for if objects_and_uuids.empty?
+
+ uuids = objects_and_uuids.collect { |x| x.is_a?(String) ? x : x.uuid }
+
+ # if already preloaded for all of these uuids, return
+ if not uuids.select { |x| @all_links_for[x].nil? }.any?
+ return @all_links_for
+ end
+
+ uuids.each do |x|
+ @all_links_for[x] = []
+ end
+
+ # TODO: make sure we get every page of results from API server
+ Link.filter([['head_uuid', 'in', uuids]]).each do |link|
+ @all_links_for[link.head_uuid] << link
+ end
+ @all_links_for
+ end
+
+ # helper method to get a certain number of objects of a specific type
+ # this can be used to replace any uses of: "dataclass.limit(n)"
+ helper_method :get_n_objects_of_class
+ def get_n_objects_of_class dataclass, size
+ @objects_map_for ||= {}
+
+ raise ArgumentError, 'Argument is not a data class' unless dataclass.is_a? Class and dataclass < ArvadosBase
+ raise ArgumentError, 'Argument is not a valid limit size' unless (size && size>0)
+
+ # if the objects_map_for has a value for this dataclass, and the
+ # size used to retrieve those objects is equal, return it
+ size_key = "#{dataclass.name}_size"
+ if @objects_map_for[dataclass.name] && @objects_map_for[size_key] &&
+ (@objects_map_for[size_key] == size)
+ return @objects_map_for[dataclass.name]
+ end
+
+ @objects_map_for[size_key] = size
+ @objects_map_for[dataclass.name] = dataclass.limit(size)
+ end
+
+ # helper method to get collections for the given uuid
+ helper_method :collections_for_object
+ def collections_for_object uuid
+ raise ArgumentError, 'No input argument' unless uuid
+ preload_collections_for_objects([uuid])
+ @all_collections_for[uuid] ||= []
+ end
+
+ # helper method to preload collections for the given uuids
+ helper_method :preload_collections_for_objects
+ def preload_collections_for_objects uuids
+ @all_collections_for ||= {}
+
+ raise ArgumentError, 'Argument is not an array' unless uuids.is_a? Array
+ return @all_collections_for if uuids.empty?
+
+ # if already preloaded for all of these uuids, return
+ if not uuids.select { |x| @all_collections_for[x].nil? }.any?
+ return @all_collections_for
+ end
+
+ uuids.each do |x|
+ @all_collections_for[x] = []
+ end
+
+ # TODO: make sure we get every page of results from API server
+ Collection.where(uuid: uuids).each do |collection|
+ @all_collections_for[collection.uuid] << collection
+ end
+ @all_collections_for
+ end
+
+ # helper method to get log collections for the given log
+ helper_method :log_collections_for_object
+ def log_collections_for_object log
+ raise ArgumentError, 'No input argument' unless log
+
+ preload_log_collections_for_objects([log])
+
+ uuid = log
+ fixup = /([a-f0-9]{32}\+\d+)(\+?.*)/.match(log)
+ if fixup && fixup.size>1
+ uuid = fixup[1]
+ end
+
+ @all_log_collections_for[uuid] ||= []
+ end
+
+ # helper method to preload collections for the given uuids
+ helper_method :preload_log_collections_for_objects
+ def preload_log_collections_for_objects logs
+ @all_log_collections_for ||= {}
+
+ raise ArgumentError, 'Argument is not an array' unless logs.is_a? Array
+ return @all_log_collections_for if logs.empty?
+
+ uuids = []
+ logs.each do |log|
+ fixup = /([a-f0-9]{32}\+\d+)(\+?.*)/.match(log)
+ if fixup && fixup.size>1
+ uuids << fixup[1]
+ else
+ uuids << log
+ end
+ end
+
+ # if already preloaded for all of these uuids, return
+ if not uuids.select { |x| @all_log_collections_for[x].nil? }.any?
+ return @all_log_collections_for
+ end
+
+ uuids.each do |x|
+ @all_log_collections_for[x] = []
+ end
+
+ # TODO: make sure we get every page of results from API server
+ Collection.where(uuid: uuids).each do |collection|
+ @all_log_collections_for[collection.uuid] << collection
+ end
+ @all_log_collections_for
+ end
+
+ # helper method to get object of a given dataclass and uuid
+ helper_method :object_for_dataclass
+ def object_for_dataclass dataclass, uuid
+ raise ArgumentError, 'No input argument dataclass' unless (dataclass && uuid)
+ preload_objects_for_dataclass(dataclass, [uuid])
+ @objects_for[uuid]
+ end
+
+ # helper method to preload objects for given dataclass and uuids
+ helper_method :preload_objects_for_dataclass
+ def preload_objects_for_dataclass dataclass, uuids
+ @objects_for ||= {}
+
+ raise ArgumentError, 'Argument is not a data class' unless dataclass.is_a? Class
+ raise ArgumentError, 'Argument is not an array' unless uuids.is_a? Array
+
+ return @objects_for if uuids.empty?
+
+ # if already preloaded for all of these uuids, return
+ if not uuids.select { |x| @objects_for[x].nil? }.any?
+ return @objects_for
+ end
+
+ dataclass.where(uuid: uuids).each do |obj|
+ @objects_for[obj.uuid] = obj
+ end
+ @objects_for
+ end
+