-class AddGpxIndexes < ActiveRecord::Migration[5.0]
+class AddGpxIndexes < ActiveRecord::Migration[4.2]
def self.up
add_index "gpx_files", ["user_id"], :name => "gpx_files_user_id_idx"
add_index "gpx_file_tags", ["tag"], :name => "gpx_file_tags_tag_idx"