Trouble calling action methods from FreeMarker

[Christopher Maloof]

I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.  It
mostly works fine: my templates are retrieving bean information with no
problem.  However, I can't figure out how to call methods defined in my
action classes.

If my action class looks like this:

public class MyAction extends MyActionSupport {
    public String getMyValue() {
       return "hello";
    }
    public String myMethod() {
       return "world";
    }
}

Then these things work:
${myValue}  (indirect access to bean getter)
${myValue.toUpperCase()}  (method call on object)
<@s.property value="myMethod()"/>   (Struts tag calling a method)

But these things don't:
${myMethod()}
${getMyValue()}  (plain method calls as described in the docs)

Are public action methods not included in the data model for Freemarker,
for some reason?  The Freemarker docs
(http://freemarker.org/docs/dgui_template_exp.html#dgui_template_exp_methodcall)
seem to indicate that they ought to be.

Thanks for any help,
Chris


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[Christopher Maloof]

I guess no one recognizes the problem.  Next question: Has anyone gotten
this (calling action methods from FreeMarker tags) to work
successfully?  Just trying to figure out whether the correct approach is
to hammer on my configuration somehow, or to file a bug.

Thanks,
Chris

On 11/9/2009 10:13 AM, Christopher Maloof wrote:

> I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.  It
> mostly works fine: my templates are retrieving bean information with
> no problem.  However, I can't figure out how to call methods defined
> in my action classes.
>
> If my action class looks like this:
>
> public class MyAction extends MyActionSupport {
>    public String getMyValue() {
>       return "hello";
>    }
>    public String myMethod() {
>       return "world";
>    }
> }
>
> Then these things work:
> ${myValue}  (indirect access to bean getter)
> ${myValue.toUpperCase()}  (method call on object)
> <@s.property value="myMethod()"/>   (Struts tag calling a method)
>
> But these things don't:
> ${myMethod()}
> ${getMyValue()}  (plain method calls as described in the docs)
>
> Are public action methods not included in the data model for
> Freemarker, for some reason?  The Freemarker docs
> (http://freemarker.org/docs/dgui_template_exp.html#dgui_template_exp_methodcall)
> seem to indicate that they ought to be.
>
> Thanks for any help,
> Chris
>

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[Haroon Rafique]

Hi Chris,

See reply embedded below...

On Today at 10:32am, CM=>Christopher Maloof <C_Maloof@...> wrote:

CM> I guess no one recognizes the problem.  Next question: Has anyone
CM> gotten this (calling action methods from FreeMarker tags) to work
CM> successfully? Just trying to figure out whether the correct approach
CM> is to hammer on my configuration somehow, or to file a bug.
CM>
CM> Thanks,
CM> Chris
CM>
CM> On 11/9/2009 10:13 AM, Christopher Maloof wrote:
CM> > I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.  It mostly
CM> > works fine: my templates are retrieving bean information with no problem.
CM> > However, I can't figure out how to call methods defined in my action
CM> > classes.
CM> >
CM> > If my action class looks like this:
CM> >
CM> > public class MyAction extends MyActionSupport {
CM> >    public String getMyValue() {
CM> >       return "hello";
CM> >    }
CM> >    public String myMethod() {
CM> >       return "world";
CM> >    }
CM> > }
CM> >
CM> > Then these things work:
CM> > ${myValue}  (indirect access to bean getter)
CM> > ${myValue.toUpperCase()}  (method call on object)
CM> > <@s.property value="myMethod()"/>   (Struts tag calling a method)
CM> >
CM> > But these things don't:
CM> > ${myMethod()}
CM> > ${getMyValue()}  (plain method calls as described in the docs)
CM> >


Try:

${stack.findValue("getMyValue()")}
${stack.findValue("myMethod()")}

Later,
--
Haroon Rafique
<haroon.rafique@...>


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[Christopher Maloof]

Thanks!  I don't know what that's really doing, but it does work.  
Adding parameters to the methods is a bit wonky; it's very difficult to
get the syntax right for
    ${stack.findValue("getScore('${st.name()}')")}
as opposed to the expected
    ${getScore(st.name())}

but it's something.

Maybe this should be added to
http://struts.apache.org/2.x/docs/freemarker.html , assuming it's the
intended behavior?  The question's been asked of the list at least a
couple other times this year:
http://markmail.org/message/4ordiw724kvdw5d6 and
http://markmail.org/message/jjkic23knjk5tnpx.

Best,
Chris

On 11/10/2009 11:20 AM, Haroon Rafique wrote:

> Hi Chris,
>
> See reply embedded below...
>
> On Today at 10:32am, CM=>Christopher Maloof<C_Maloof@...>  wrote:
>
> CM>  I guess no one recognizes the problem.  Next question: Has anyone
> CM>  gotten this (calling action methods from FreeMarker tags) to work
> CM>  successfully? Just trying to figure out whether the correct approach
> CM>  is to hammer on my configuration somehow, or to file a bug.
> CM>
> CM>  Thanks,
> CM>  Chris
> CM>
> CM>  On 11/9/2009 10:13 AM, Christopher Maloof wrote:
> CM>  >  I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.  It mostly
> CM>  >  works fine: my templates are retrieving bean information with no problem.
> CM>  >  However, I can't figure out how to call methods defined in my action
> CM>  >  classes.
> CM>  >
> CM>  >  If my action class looks like this:
> CM>  >
> CM>  >  public class MyAction extends MyActionSupport {
> CM>  >     public String getMyValue() {
> CM>  >        return "hello";
> CM>  >     }
> CM>  >     public String myMethod() {
> CM>  >        return "world";
> CM>  >     }
> CM>  >  }
> CM>  >
> CM>  >  Then these things work:
> CM>  >  ${myValue}  (indirect access to bean getter)
> CM>  >  ${myValue.toUpperCase()}  (method call on object)
> CM>  >  <@s.property value="myMethod()"/>    (Struts tag calling a method)
> CM>  >
> CM>  >  But these things don't:
> CM>  >  ${myMethod()}
> CM>  >  ${getMyValue()}  (plain method calls as described in the docs)
> CM>  >
>
>
> Try:
>
> ${stack.findValue("getMyValue()")}
> ${stack.findValue("myMethod()")}
>
> Later,
> --
> Haroon Rafique
> <haroon.rafique@...>
>
>
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> To unsubscribe, e-mail: user-unsubscribe@...
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>    

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[Musachy Barroso]

can you try "${action.someMethod()} ? I think that should work

musachy

On Tue, Nov 10, 2009 at 9:46 AM, Christopher Maloof
<C_Maloof@...> wrote:

> Thanks!  I don't know what that's really doing, but it does work.  Adding
> parameters to the methods is a bit wonky; it's very difficult to get the
> syntax right for
>   ${stack.findValue("getScore('${st.name()}')")}
> as opposed to the expected
>   ${getScore(st.name())}
>
> but it's something.
>
> Maybe this should be added to
> http://struts.apache.org/2.x/docs/freemarker.html , assuming it's the
> intended behavior?  The question's been asked of the list at least a couple
> other times this year: http://markmail.org/message/4ordiw724kvdw5d6 and
> http://markmail.org/message/jjkic23knjk5tnpx.
>
> Best,
> Chris
>
> On 11/10/2009 11:20 AM, Haroon Rafique wrote:
>>
>> Hi Chris,
>>
>> See reply embedded below...
>>
>> On Today at 10:32am, CM=>Christopher Maloof<C_Maloof@...>
>>  wrote:
>>
>> CM>  I guess no one recognizes the problem.  Next question: Has anyone
>> CM>  gotten this (calling action methods from FreeMarker tags) to work
>> CM>  successfully? Just trying to figure out whether the correct approach
>> CM>  is to hammer on my configuration somehow, or to file a bug.
>> CM>
>> CM>  Thanks,
>> CM>  Chris
>> CM>
>> CM>  On 11/9/2009 10:13 AM, Christopher Maloof wrote:
>> CM>  >  I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.
>>  It mostly
>> CM>  >  works fine: my templates are retrieving bean information with no
>> problem.
>> CM>  >  However, I can't figure out how to call methods defined in my
>> action
>> CM>  >  classes.
>> CM>  >
>> CM>  >  If my action class looks like this:
>> CM>  >
>> CM>  >  public class MyAction extends MyActionSupport {
>> CM>  >     public String getMyValue() {
>> CM>  >        return "hello";
>> CM>  >     }
>> CM>  >     public String myMethod() {
>> CM>  >        return "world";
>> CM>  >     }
>> CM>  >  }
>> CM>  >
>> CM>  >  Then these things work:
>> CM>  >  ${myValue}  (indirect access to bean getter)
>> CM>  >  ${myValue.toUpperCase()}  (method call on object)
>> CM>  >  <@s.property value="myMethod()"/>    (Struts tag calling a method)
>> CM>  >
>> CM>  >  But these things don't:
>> CM>  >  ${myMethod()}
>> CM>  >  ${getMyValue()}  (plain method calls as described in the docs)
>> CM>  >
>>
>>
>> Try:
>>
>> ${stack.findValue("getMyValue()")}
>> ${stack.findValue("myMethod()")}
>>
>> Later,
>> --
>> Haroon Rafique
>> <haroon.rafique@...>
>>
>>
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>> For additional commands, e-mail: user-help@...
>>
>
>
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[Christopher Maloof]

Oh, that's much nicer!  Yes, using the "action" built-in variable works
perfectly.  Thank you very much -

Chris

On 11/10/2009 12:53 PM, Musachy Barroso wrote:

> can you try "${action.someMethod()} ? I think that should work
>
> musachy
>
> On Tue, Nov 10, 2009 at 9:46 AM, Christopher Maloof
> <C_Maloof@...>  wrote:
>    
>> Thanks!  I don't know what that's really doing, but it does work.  Adding
>> parameters to the methods is a bit wonky; it's very difficult to get the
>> syntax right for
>>    ${stack.findValue("getScore('${st.name()}')")}
>> as opposed to the expected
>>    ${getScore(st.name())}
>>
>> but it's something.
>>
>> Maybe this should be added to
>> http://struts.apache.org/2.x/docs/freemarker.html , assuming it's the
>> intended behavior?  The question's been asked of the list at least a couple
>> other times this year: http://markmail.org/message/4ordiw724kvdw5d6 and
>> http://markmail.org/message/jjkic23knjk5tnpx.
>>
>> Best,
>> Chris
>>
>> On 11/10/2009 11:20 AM, Haroon Rafique wrote:
>>      
>>> Hi Chris,
>>>
>>> See reply embedded below...
>>>
>>> On Today at 10:32am, CM=>Christopher Maloof<C_Maloof@...>
>>>   wrote:
>>>
>>> CM>    I guess no one recognizes the problem.  Next question: Has anyone
>>> CM>    gotten this (calling action methods from FreeMarker tags) to work
>>> CM>    successfully? Just trying to figure out whether the correct approach
>>> CM>    is to hammer on my configuration somehow, or to file a bug.
>>> CM>
>>> CM>    Thanks,
>>> CM>    Chris
>>> CM>
>>> CM>    On 11/9/2009 10:13 AM, Christopher Maloof wrote:
>>> CM>    >    I'm just starting to use FreeMarker (2.3.15) with Struts 2.1.8.
>>>   It mostly
>>> CM>    >    works fine: my templates are retrieving bean information with no
>>> problem.
>>> CM>    >    However, I can't figure out how to call methods defined in my
>>> action
>>> CM>    >    classes.
>>> CM>    >
>>> CM>    >    If my action class looks like this:
>>> CM>    >
>>> CM>    >    public class MyAction extends MyActionSupport {
>>> CM>    >       public String getMyValue() {
>>> CM>    >          return "hello";
>>> CM>    >       }
>>> CM>    >       public String myMethod() {
>>> CM>    >          return "world";
>>> CM>    >       }
>>> CM>    >    }
>>> CM>    >
>>> CM>    >    Then these things work:
>>> CM>    >    ${myValue}  (indirect access to bean getter)
>>> CM>    >    ${myValue.toUpperCase()}  (method call on object)
>>> CM>    >    <@s.property value="myMethod()"/>      (Struts tag calling a method)
>>> CM>    >
>>> CM>    >    But these things don't:
>>> CM>    >    ${myMethod()}
>>> CM>    >    ${getMyValue()}  (plain method calls as described in the docs)
>>> CM>    >
>>>
>>>
>>> Try:
>>>
>>> ${stack.findValue("getMyValue()")}
>>> ${stack.findValue("myMethod()")}
>>>
>>> Later,
>>> --
>>> Haroon Rafique
>>> <haroon.rafique@...>
>>>
>>>
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>>>        
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>>      

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