Hi Carl,
I'm afraid the code that actually /calls/ the validator, is stripping
the square brackets, so you can't pass in the regexp you mentioned
below. I haven't looked up the code that calls a validator, but I
assume it has to do with the syntax of the ognl-_expression_-parsing. The
parser is using square brackets to set the boundaries of the total
_expression_, so you can't pass those in.
On another thread, I more or less asked the same question, but did not
get a reply. This caused me to write my own validator, that /does/
accept square brackets. Well, sort of. It replaces all accolades ( "{"
and "}" ) by square brackets. This allows me to use, for example:
binding name="validators"
value="validators:mzzPattern={a-zA-Z}*"/
!-- This will be replaced by: [a-zA-Z] --
or, including a custom error message:
binding name="validators"
value="validators:mzzPattern={^%}.*[{0} may not start with a
'%'.]"/
!-- This will be replaced by: [^%].* --
The code for the validator I wrote is fairly straightforward:
public class PatternValidator extends BaseValidator {
private static final Log log =
LogFactory.getLog(PatternValidator.class);
private String pattern;
public void setMzzPattern(String pattern) {
this.pattern = pattern.replace('{','[').replace('}',']');
}
public void validate(IFormComponent field, ValidationMessages
messages, Object object) throws ValidatorException {
if( log.isDebugEnabled() ) {
log.debug("Validating input: "+object+" pattern:"+pattern);
}
if( object==null ) {
return;
}
if( !Pattern.matches(pattern,object.toString())) {
if( messageKey==null ) {
setMessageKey("{0} dos not comply to regExp: "+pattern);
}
throw new ValidatorException(buildMessage(messages, field),
ValidationConstraint.PATTERN_MISMATCH);
}
}
}
Hope this helps. Anybody with a better way? Would love to see that too.
Martijn
BTW: you can find the code of Tapestry's pattern validator at:
tapestry-4.0.1\framework\src\java\org\apache\tapestry\form\validator\Pattern.java
Carl Pelletier wrote:
Hi everyone, I'm trying to validate a Canadian Postal code in a text field. Can somebody point me to the doc where I can find all the type of pattern supported by pattern= in the validator ?
I search on the forum and get a look at the online doc, but can't find explication on this.
For now, I'm trying to do something like:
input class="postalCode" maxlength="8" jwcid="[EMAIL PROTECTED]" type="text" value="ognl:address.postalCode" validators="validators:pattern=[A-Z][0-9][A-Z][SPACE][0-9][0-9][A-Z][0-9][%postalCode-format]" displayName="postalCode" /
Thanks for any help ! sorry for the bad english...
P.S. I'm thinking of starting a french version of this forum. Please email me if your think it's a good idea.
Carl Pelletier
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