- def self._contents_requires_parameters
- _index_requires_parameters.
- merge({
- include_linked: {
- type: 'boolean', required: false, default: false
- },
- })
- end
-
- def contents
- all_objects = []
- all_available = 0
-
- # Trick apply_where_limit_order_params into applying suitable
- # per-table values. *_all are the real ones we'll apply to the
- # aggregate set.
- limit_all = @limit
- offset_all = @offset
- @orders = []
-
- ArvadosModel.descendants.reject(&:abstract_class?).sort_by(&:to_s).
- each do |klass|
- case klass.to_s
- # We might expect klass==Link etc. here, but we would be
- # disappointed: when Rails reloads model classes, we get two
- # distinct classes called Link which do not equal each
- # other. But we can still rely on klass.to_s to be "Link".
- when 'ApiClientAuthorization', 'UserAgreement'
- # Do not want.
- else
- @objects = klass.readable_by(*@read_users)
- cond_sql = "#{klass.table_name}.owner_uuid = ?"
- cond_params = [@object.uuid]
- if params[:include_linked]
- cond_sql += " OR #{klass.table_name}.uuid IN (SELECT head_uuid FROM links WHERE link_class=#{klass.sanitize 'name'} AND links.tail_uuid=#{klass.sanitize @object.uuid})"
- end
- @objects = @objects.where(cond_sql, *cond_params).order("#{klass.table_name}.uuid")
- @limit = limit_all - all_objects.count
- apply_where_limit_order_params
- items_available = @objects.
- except(:limit).except(:offset).
- count(:id, distinct: true)
- all_available += items_available
- @offset = [@offset - items_available, 0].max
-
- all_objects += @objects.to_a
- end
- end
- @objects = all_objects || []
- @links = Link.where('link_class=? and tail_uuid=?'\
- ' and head_uuid in (?)',
- 'name',
- @object.uuid,
- @objects.collect(&:uuid))
- @object_list = {
- :kind => "arvados#objectList",
- :etag => "",
- :self_link => "",
- :links => @links.as_api_response(nil),
- :offset => offset_all,
- :limit => limit_all,
- :items_available => all_available,
- :items => @objects.as_api_response(nil)
- }
- render json: @object_list
- end
-