[STR-2612] reset() support for DynaActionForm

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Future
• Fix Version/s: 1.3.0
• Component/s: Core
• Environment: Operating System: other; Platform: Other
• Bugzilla Id: 37057
• Assignee: David Evans
• Reporter: Hubert Rabago
• Created: 13/Oct/05 03:22
• Updated: 24/Apr/06 22:56
• Resolved: 24/Apr/06 22:56

Description

Handling reset() for certain fields in dyna forms would help with the
requirements of the <html:checkbox> tag.

There are two approaches I've thought of so far.

1) Simply reset any boolean fields to false inside reset(). This could cause
backward-compatibility issues if anyone out there is using boolean fields in
action forms for anything other than checkboxes.

2) Allow the user to configure both an initial value and a reset flag. This
could be something like:

<form-bean
name="MyForm"
type="org.apache.struts.action.DynaActionForm">
<form-property
name="firstName"
type="java.lang.String" />
<form-property
name="lastName"
type="java.lang.String" />
<form-property
name="someFlag"
type="java.lang.String"
initial="false"
reset="true"/>
</form-bean>

Inside reset(), any property whose "reset" flag is set would be reset to its
initial value.

This would require both a DTD change, and a way for the DynaActionForm to know
what form name it is configured for. For this, FormBeanConfig's
createActionForm() can be modified to pass along the name onto the
DynaActionForm it creates.