Plugin for accepting a string or number. All the operators specified for this plugin are displayed on a menu.

In the var_list configuration, specify validation to provide CSS classes that will be interpreted by Y.FormManager.

To enable autocomplete, define autocomplete in the var_list configuration. The object will be used as the configuration for Y.Plugin.AutoComplete. If you specify autocomplete.containerClassName, this CSS class will be added to the container generated by the autocomplete plugin.

The value argument passed to QueryBuilder.appendNew() must be an array with two elements: [ operator_name, value ].