class AddTimeStamps < ActiveRecord::Migration def self.up add_timestamps :charges add_timestamps :charge_periods add_timestamps :charge_sets add_timestamps :charge_templates add_timestamps :flow_cells add_timestamps :flow_cell_lanes add_timestamps :instruments add_timestamps :lab_groups add_timestamps :lab_memberships add_timestamps :naming_elements add_timestamps :naming_schemes add_timestamps :naming_terms add_timestamps :organisms add_timestamps :projects add_timestamps :reference_genomes add_timestamps :samples add_timestamps :sample_prep_kits add_timestamps :sample_terms add_timestamps :sample_texts add_timestamps :sequencing_runs add_timestamps :site_config end def self.down remove_timestamps :charges remove_timestamps :charge_periods remove_timestamps :charge_sets remove_timestamps :charge_templates remove_timestamps :flow_cells remove_timestamps :flow_cell_lanes remove_timestamps :instruments remove_timestamps :lab_groups remove_timestamps :lab_memberships remove_timestamps :naming_elements remove_timestamps :naming_schemes remove_timestamps :naming_terms remove_timestamps :organisms remove_timestamps :projects remove_timestamps :reference_genomes remove_timestamps :samples remove_timestamps :sample_prep_kits remove_timestamps :sample_terms remove_timestamps :sample_texts remove_timestamps :sequencing_runs remove_timestamps :site_config end end