xxforms:attribute() trouble

[Jim Logan-3]

I'm having a hard time trying to get something to work. I have an instance element that does not have an attribute called "action" and want to create one with the value "delete" when the user presses a button. I can get this to work if the attribute already exists using the following:

<xforms:trigger>
    <xforms:label>Delete</xforms:label>                                
    <xforms:action ev:event="DOMActivate">
        <xforms:setvalue ref="@action">delete</xforms:setvalue>
        <!--<xforms:insert origin="xxforms:attribute('action', 'delete')"/>-->
    </xforms:action>
</xforms:trigger>

  

That snippet is inside a repeat that sets the nodeset to the element that should receive the attribute.

If I replace the "setvalue" line with the commented-out "insert" line and the instance does not yet have an "action" attribute, it doesn't do anything. Can anyone tell me what I'm doing wrong?

Thanks,
-Jim




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[Erik Bruchez]

Jim,

Try:

<xforms:insert context="." origin="xxforms:attribute('action',  
'delete')"/>

This is because when inserting *into* an element, an explicit  
insertion context is required.

-Erik

On May 7, 2008, at 9:26 AM, Jim Logan wrote:

> I'm having a hard time trying to get something to work. I have an  
> instance element that does not have an attribute called "action" and  
> want to create one with the value "delete" when the user presses a  
> button. I can get this to work if the attribute already exists using  
> the following:
> <xforms:trigger>
>     <xforms:label>Delete</xforms:label>
>     <xforms:action ev:event="DOMActivate">
>         <xforms:setvalue ref="@action">delete</xforms:setvalue>
>         <!--<xforms:insert origin="xxforms:attribute('action',  
> 'delete')"/>-->
>     </xforms:action>
> </xforms:trigger>
>
>
> That snippet is inside a repeat that sets the nodeset to the element  
> that should receive the attribute.
>
> If I replace the "setvalue" line with the commented-out "insert"  
> line and the instance does not yet have an "action" attribute, it  
> doesn't do anything. Can anyone tell me what I'm doing wrong?
>
> Thanks,
> -Jim
>
>
>
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http://www.orbeon.com/



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[Jim Logan-3]

Erik Bruchez wrote:

Jim,

Try:

<xforms:insert context="." origin="xxforms:attribute('action', 'delete')"/>

This is because when inserting *into* an element, an explicit insertion context is required.

-Erik

Erik,

I tried that, but I get this error message:

XPath syntax error at char 37 in {...:attribute('action', 'delet...}:
Cannot find a matching 2-argument function named {http://orbeon.org/oxf/xml/xforms}attribute()

What would cause this to happen, just by adding a context? (BTW, I'm using the latest stable version of Orbeon.)

Thanks,
-Jim



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[Erik Bruchez]

What version are you running? xxforms:attribute() was introduced  
fairly recently.

-Erik

On May 7, 2008, at 10:05 AM, Jim Logan wrote:

> Erik Bruchez wrote:
>>
>> Jim,
>>
>> Try:
>>
>> <xforms:insert context="." origin="xxforms:attribute('action',  
>> 'delete')"/>
>>
>> This is because when inserting *into* an element, an explicit  
>> insertion context is required.
>>
>> -Erik
> Erik,
>
> I tried that, but I get this error message:
> XPath syntax error at char 37 in {...:attribute('action', 'delet...}:
> Cannot find a matching 2-argument function named {http://orbeon.org/oxf/xml/xforms 
> }attribute()
>
> What would cause this to happen, just by adding a context? (BTW, I'm  
> using the latest stable version of Orbeon.)
>
> Thanks,
> -Jim
>
>
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[Jim Logan-3]

Erik Bruchez wrote:
> What version are you running? xxforms:attribute() was introduced
> fairly recently.
The latest stable version. Was this function added since then?



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[Erik Bruchez]

Yes, along with tons of other changes:

   http://www.orbeon.com/ops/doc/home-changes-37#changes-37-full

You may want to try a nightly build.

-Erik

On May 7, 2008, at 10:12 AM, Jim Logan wrote:

> Erik Bruchez wrote:
>> What version are you running? xxforms:attribute() was introduced  
>> fairly recently.
> The latest stable version. Was this function added since then?

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[Jim Logan-3]

Erik Bruchez wrote:
> Yes, along with tons of other changes:
>
>   http://www.orbeon.com/ops/doc/home-changes-37#changes-37-full
>
> You may want to try a nightly build.
Erik,

Thanks, that worked.

It strikes me as odd that the documentation contained a function not in
the stable release. Are there more waiting to be discovered?

I am using Orbeon as part of a product to be delivered in June. When do
you expect the nightly build to become a stable release?

Thanks,
-Jim



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[Erik Bruchez]

>
> It strikes me as odd that the documentation contained a function not  
> in the stable release. Are there more waiting to be discovered?

We regularly update the documentation online as we go. So usually the  
doc is more in sync with the latest code than with the latest stable  
release. I can see how this may be a little confusing, but we wanted  
people to see the latest and greatest right away ;-)

> I am using Orbeon as part of a product to be delivered in June. When  
> do you expect the nightly build to become a stable release?

We are hoping for a 3.7 "real soon".

-Erik

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