Hello again all !
With the help of Sylvain and Thorsten I have managed to come up with
the form.
Now - when all data is valid, all works fine.
The problem starts when the data is not valid.
I have 3 widgets in my form - text field and a select list. (See
definition below)
On the text field there is a validation of length, and on the select
list there is no validation, but the first "item" of it is a null record - to
show an empty slot.
On the "form" there is a validation so that either of the 2 fields must
contain value. (See definition below)
When I first show the form all is fine.
When I enter a too-short string in the text field, I get a strange
behavior: I can see the error message stating it is too short, but I can also
see the error message stating that either of the fields should be entered
(coming from the "form level" validation function) - like nothing was entered
in the text field. I added a "print" line into the form validation, to see that
even though I have entered a value in the text field (it was too short - but it
was there) the widget value is actually null. (see the "print" in the flow
below).
Also - I would expect the validation to stop after it was failing on
the "too-short" text field widget validation. Why has it continued to the "Form
level" validation at all ?
Another strange behavior was, that after I submitted the form with
valid data, I could see the results. When I pressed "Back" button of the
browser - I got back to the form page, with all the error messages still
showing. The fields are showing the valid data which I put in, but the errors
from the first trail are still there. Why is that ?
And the third issue - When I am not using the "Back" button, but
instead using the original "link" to the form page, I get other results - I can
see the form in the state it was after I entered a "too-short" string in the
text field !! This is after I have already changed the data to valid,
submitted, got my results, and return to the form page using its link 1 minute
after.. I even get the results opening a new browser window, in a different
process. Only "restart" to the web server removes it.
Is this the normal behavior ? Should I reset the form in some manner ?
I am attaching down the needed text from the flow and form description
- maybe it can help you understand my problems.
Thank you very much for reading my long post :)
Elad
**************
<fd:form
xmlns:fd="http://apache.org/cocoon/forms/1.0#definition";>
<fd:validation>
<fd:javascript>
validateRestaurantForm(widget);
</fd:javascript>
</fd:validation>
<fd:widgets>
<fd:messages id="errors">
<fd:datatype base="string"/>
</fd:messages>
<fd:field id="name">
<fd:label>Name</fd:label>
<fd:hint>Hint Hint</fd:hint>
<fd:datatype base="string"/>
<fd:validation>
<fd:length min="2">
<fd:failmessage>You should add name</fd:failmessage>
</fd:length>
</fd:validation>
</fd:field>
<fd:field id="type">
<fd:label>Type</fd:label>
<fd:datatype base="integer"/>
<fd:selection-list type="flow-jxpath" list-path="restTypeList"
value-path="id" label-path="name"/>
</fd:field>
</fd:widgets>
</fd:form>
**************
function validateRestaurantForm (form){
print ("Start validateRestaurantForm");
var success = true;
var nameWidget = form.lookupWidget("name");
var typeWidget = form.lookupWidget("type");
var errorsWidget = form.lookupWidget("errors");
print ("Name: " + nameWidget.value + " Type: " + typeWidget.value);
if (typeWidget.value == null && nameWidget.value == null ) {
errorsWidget.addMessage("You must either select a name or
type");
print ("set the errors and return false");
success = false;
}
return success;
}
**************
-----Urspr�ngliche Nachricht-----
Von: Sylvain Wallez [mailto:[EMAIL PROTECTED]
Gesendet: Dienstag, 31. Mai 2005 21:08
An: [email protected]
Betreff: Re: CFORMS - Performing a Form level validation
Messing, Elad wrote:
> Hi all
> I tried looking for a "definition" text on the preferred way
> of performing a Form level validation.
> What I mean is that I need to perform validation that is
> relevant to the Form -not to specific widget. I.E. - I have a form
> with 2 widgets, and I need to check that either 1 of them has a value
> in it.
>
> So - I know I can have a validation in one of the widgets, and
> in it write some javascript to check the other as well, and then
> output the error to a "fi:validation-errors" tag - to show it in a
> central place.
>
> But this seems like a work around rather than a real plan..
>
You can add a <fd:validation> on any widget, including a form. But not every
widget can hold validation errors, as not every widget has a visual
representation.
So validation on non-visual widgets should set validation errors on one of
their child widgets. Another option if there's no suitable widget to attach the
error to is to add the error text to a <fd:message> widget.
For more details, see the javadocs of
o.a.c.forms.validation.WidgetValidator and form1.xml in the samples: the
"contacts" repeater has a validator that checks row uniqueness and sets an
error on the duplicate rows.
> A second and related question will be - In my form with 2
> widgets, each one of them has its own validation. So - they are not
> required, but in case the user enters something into them, It should
> be validated. After this validation, I will need to have the "Form
> Level" validation I mentioned above.
>
That should occur automatically.
Hope this helps,
Sylvain
--
Sylvain Wallez Anyware Technologies
http://apache.org/~sylvain http://anyware-tech.com
Apache Software Foundation Member Research & Technology Director
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