Re: [OS-webwork] validator for the optional int field

Francisco Hernandez Sun, 23 Nov 2003 11:26:59 -0800

one thing i noticed (from lates cvs head as of a few minutes from sending this email) is that urls like foo.action?myInt=breakMe (myInt is an int, surprised?) are causing INPUT to be returned, i dont think that was happening before, same thing with Date Long Integer long propertys,

Jason Carreira wrote:

What's the expression you're applying to the field? I'll see if I can
figure out what the issue is...
-----Original Message----- From: Taavi Tiirik [mailto:[EMAIL PROTECTED] Sent: Sunday, November 23, 2003 12:08 PM To: [EMAIL PROTECTED] Subject: Re: [OS-webwork] validator for the optional int field

This is the problem of empty form fields causing type
conversion field

errors that I fixed last night... Try the latest
Excellent. Thanks!

Now there is still this null pointer exception that happens if I use validator of type fieldexpression and if the field is left blank i.e. when I call validationtest.action?year=

java.lang.NullPointerException at ognl.OgnlOps.doubleValue(OgnlOps.java:97) at ognl.OgnlOps.greater(OgnlOps.java:395) at ognl.ASTGreater.getValueBody(ASTGreater.java:51) at ognl.SimpleNode.getValue(SimpleNode.java:167) at ognl.Ognl.getValue(Ognl.java:335) at ognl.Ognl.getValue(Ognl.java:310) at com.opensymphony.xwork.util.OgnlValueStack.findValue(OgnlValue Stack.java:92) at com.opensymphony.xwork.validator.validators.ValidatorSupport.g etFieldValue(V alidatorSupport.java:90) at com.opensymphony.xwork.validator.validators.FieldExpressionVal idator.validat e(FieldExpressionValidator.java:37) at com.opensymphony.xwork.validator.ActionValidatorManager.valida te(ActionValid atorManager.java:69) at com.opensymphony.xwork.validator.ActionValidatorManager.valida te(ActionValid atorManager.java:55) at com.opensymphony.xwork.validator.ValidationInterceptor.before( ValidationInte rceptor.java:36) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept (AroundInterce ptor.java:36) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultA ctionInvocatio n.java:169) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept (AroundInterce ptor.java:37) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultA ctionInvocatio n.java:169) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept (AroundInterce ptor.java:37) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultA ctionInvocatio n.java:169) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept (AroundInterce ptor.java:37) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultA ctionInvocatio n.java:169) at com.opensymphony.xwork.interceptor.TimerInterceptor.intercept( TimerIntercept or.java:62) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultA ctionInvocatio n.java:169) at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActio nProxy.java:11 6) at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceA ction(ServletD ispatcher.java:182) at com.opensymphony.webwork.dispatcher.ServletDispatcher.service( ServletDispatc her.java:162) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilt er(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli cationFilterCh ain.java:193) at com.opensymphony.webwork.lifecycle.RequestLifecycleFilter.doFi lter(RequestLi fecycleFilter.java:62) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilt er(Application FilterChain.java:213) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli cationFilterCh ain.java:193) at cmw.filter.SetCharacterEncoding.doFilter(SetCharacterEncoding. java:169) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilt er(Application FilterChain.java:213) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli cationFilterCh ain.java:193) at cmw.filter.Persistence.doFilter(Persistence.java:70) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilt er(Application FilterChain.java:213) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli cationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardW rapperValve.ja va:256) at org.apache.catalina.core.StandardPipeline$StandardPipelineValv eContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipel ine.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardC ontextValve.ja va:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValv eContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipel ine.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContext.invoke(StandardContex t.java:2416) at org.apache.catalina.core.StandardHostValve.invoke(StandardHost Valve.java:180 ) at org.apache.catalina.core.StandardPipeline$StandardPipelineValv eContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi spatcherValve. java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValv eContext.invok eNext(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport Valve.java:172 ) at org.apache.catalina.core.StandardPipeline$StandardPipelineValv eContext.invok eNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipel ine.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEn gineValve.java :174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValv eContext.invok eNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipel ine.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter. java:223) at org.apache.coyote.http11.Http11Processor.process(Http11Process or.java:601) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandle r.processConne ction(Http11Protocol.java:392) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoi nt.java:565) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run( ThreadPool.jav a:619) at java.lang.Thread.run(Thread.java:536)
-----Original Message-----
From: Taavi Tiirik [mailto:[EMAIL PROTECTED]
Sent: Sunday, November 23, 2003 10:15 AM
To: [EMAIL PROTECTED]
Subject: Re: [OS-webwork] validator for the optional int field
I am using Integer instead of int now but whenever the input field is left blank I am still getting this
Invalid field
value for field "year" message.

So my results so far are like this:
these behave as expected:
   validationtest.action
   validationtest.action?year=12312313
this gives "Invalid field value for field "year" message:
   validationtest.action?year=
I feel that it should not give that error. Removing
"year=" from url is not an option because this kind
of url is what we get if there is an input form field
that is left blank.
So, what to you think what should be the ww2 way
of validating this kind of field?
best wishes,
Taavi
----- Original Message -----
From: "Jason Carreira" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, November 23, 2003 4:15 PM
Subject: RE: [OS-webwork] validator for the optional int field
Did you try the IntRangeFieldValidator? It doesn't require
a value...

Actually, if you have a primitive int, it will always get a
value and

validate it... If it's an Integer you can have a null
value, in which
case it would ignore it.
-----Original Message-----
From: Taavi Tiirik [mailto:[EMAIL PROTECTED]
Sent: Sunday, November 23, 2003 8:48 AM
To: [EMAIL PROTECTED]
Subject: Re: [OS-webwork] validator for the optional int field
Sorry for not being clear ")

I would like to specify field error message, if the field is filled with a value but this value is outside of some
min-max range.

And I would like to see this field pass this
valiation rule if

the field is left empty.

So something like this comes to my mind:

<field name="year"> <field-validator type="optional-int"> <param name="min">6</param> <param name="max">10</param> <message>bar must be between ${min} and ${max},
current value
is ${bar}.</message>
 </field-validator>
</field>
What do you want to validate about that field?
-----Original Message-----
From: Taavi Tiirik [mailto:[EMAIL PROTECTED]
Sent: Sunday, November 23, 2003 8:04 AM
To: [EMAIL PROTECTED]
Subject: [OS-webwork] validator for the optional int field
How should I write a validator for the optional
int field in
ww2?
I have getter and setter in my action:
public int getYear(){ return year; }
public void setYear( int year ){ this.year = year; }
input field is defined like this:
#tag( TextField "label='year'" "name='year'" "value=year"
"size='5'"
)

What should I put into action-validation.xml?

Taavi
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Re: [OS-webwork] validator for the optional int field

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