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http://issues.apache.org/bugzilla/show_bug.cgi?id=29530
Format functionality for <html:text and <property-name of <form-bean
Summary: Format functionality for <html:text and <property-name
of <form-bean
Product: Struts
Version: Nightly Build
Platform: All
OS/Version: All
Status: NEW
Severity: Enhancement
Priority: Other
Component: Custom Tags
AssignedTo: dev@struts.apache.org
ReportedBy: live216@yahoo.com
Suppose the following problem: A text input field on an html form is to be used
to input a dollar amount. The user might input this amount as 100,000.55, which
is a String. But we want the validator to receive a double, but back on the
html form we want this formated as a dollar amount.
Functionality should be added to support this type of behavior.
Proposed solution:
1. The <html:text> and other <html> tags should include a format property that
functions the same the format property of <bean:write>
2. The <form-property> of <form-bean> should include a format or regexp
property, so that input can be formatted before it is handed off to the
validator. For example, <form-property name="dollar_amt"
type="java.lang.Double" regexp="XXX"> where XXX is a regular expression to
remove commas. Thus, by the time the validator got value for dollar_amt, the
commas would already be removed.
This way you would have round trip formatting. A value entered as "100,000.55"
could be regexp to "100000.55", converted to a Double, handed to the validator
as a Double, and then when it is populated on the html form could be formatted
back to the dollar amount "100,000.55"
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