Conditions for XForms:submission?

Its me, one more time,

Another question i have: How can i use conditions for any submissions?
I have to save some forms, but before i have to test some additional conditions on my exist-db and only if these are fullfilled, i could save my new form. Otherwise i have to output a custom error message.
How can i do such a thing?

My idea is first send the "testing-condition" and wait for the response. In case it is positiv, send the second submission. Is that the right way, or can i use somekind of if-clause inside a submission? Didn't found any example yet.

Thanks for your help,
Marcus



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Marcus,

You can use the @if attribute on any action to execute that action
conditionally. See this section of XForms 1.1 for more details:

   http://www.w3.org/TR/xforms11/#action-conditional

-Erik

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