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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=22371 DynaActionForm is unable to return nulls Summary: DynaActionForm is unable to return nulls Product: Struts Version: 1.1 Final Platform: All OS/Version: All Status: NEW Severity: Normal Priority: Other Component: Controller AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] The documentation UserGuide/ControllerComponents says about DynaFormBeans: If you do not supply an initial attribute, numbers will be initialized to 0 and objects to null. The original sourcecode of DynaActionForm looks like this: public void initialize(ActionMapping mapping) { ... FormPropertyConfig props[] = config.findFormPropertyConfigs(); for (int i = 0; i < props.length; i++) { set(props[i].getName(), props[i].initial()); } } This code initializes the DynaActionForm with values from the struts- config.xml. If no initial attribute is provided the initial() method of FormPropertyConfig creates a new instance of the class specified in the type attribute. Therefore an empty String is returned instead of the expected null. This behaviour makes it impossible to decide, whether the form did not contain a field or the user did not provide a value for the field. A possible workaround might be the following: public void initialize(ActionMapping mapping) { ... FormPropertyConfig props[] = config.findFormPropertyConfigs(); for (int i = 0; i < props.length; i++) { if(null != props[i].getInitial()) { set(props[i].getName(), props[i].initial()); } else { set(props[i].getName(), null); } } } --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
