That's interesting - I guess the idea is to enforce uniqueness of a certain
property, the same way OWL does (and maybe RDF too, I don't know). I always
figured the best approach to such a thing would be to wait until SMW allows
for defining uniqueness (maybe through a new special property like "Is
unique", applied to a regular property), and then enforce that in the forms.
But then again, it might be a long time before such a thing gets added to
SMW, so it might be reasonable to just do it directly in SF for now.

Having action="" means that the form submits to the same page it's located
on. Maybe you should read up on HTML forms before going any further... or
just read through the SF code; everything might make more sense then.

-Yaron


On Thu, Feb 26, 2009 at 12:29 PM, <[email protected]> wrote:

>
> Hi,
> I am new in this forum and have, like all of you a deep interest into
> semantic wiki.
> I am a student in computational linguistic at the university of
> Heidelberg in Germany and write my master thesis in the field semantic
> wiki.
> In the scope of my master thesis I want to develop an additional
> fonctionality to semantic form with the purpose the identification in
> a form of a already available attributvalue.
> I  explain, for example I have in my wiki the property "link" for a
> form"webservice" and I want to warn a user if he tries to put a same
> link-value that has already been saved/used.
> My reflection is, before a user saves the formular, there should be a
> previous step, which is the controll in the database whether the
> attributs the user entered already exist in the database or not.If the
> given value already exists in the database, the user should receive a
> warning and the form will not be saved.
> My problem: I would like to know how to implement that.
> Where can I find the code, that run when I save the form?
> Here is an extract of the tag_form:
> <form name="createbox" onsubmit="return validate_all()" action=""
> method="post" class="createbox">,
> the property "action" has not value, i don't undertand why?
>
> Thank you in advance for your help,
>
> ErnstJo
>
> >
>

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