before_filter :check_write_availability, :only => [:create, :update, :delete, :upload, :include]
before_filter :check_read_availability, :except => [:create, :update, :delete, :upload, :download, :query]
after_filter :compress_output
before_filter :check_write_availability, :only => [:create, :update, :delete, :upload, :include]
before_filter :check_read_availability, :except => [:create, :update, :delete, :upload, :download, :query]
after_filter :compress_output