Constrains question

Hello all,

We're struggling with constraints; basically we want to limit the values a user can put into a textfield to certain numbers (the corresponding instance data is integer typed; want to define upper and lower bounds).

The example we found on the Orbeon documentation site (using Xpath constraints) doesn't seem to yield any results. We use the element in a xforms:repeat construction.

The relevant part from the Xforms model:

<xforms:instance id="tabel">
                     <ser:x xmlns:ser="http://www.anonymous.org/services">
                        <ser:pv categorie="1.1" activiteit="A">
                            <ser:handeling beschrijving="B">
                                <ser:frequentie>1</ser:frequentie>
                                <ser:checked>false</ser:checked>
                            </ser:handeling>
                            <ser:handeling beschrijving="B">
                                <ser:frequentie>1</ser:frequentie>
                                <ser:checked>false</ser:checked>
                            </ser:handeling>           
                        </ser:pv>

                    </ser:x>

</xforms:instance>

<xforms:bind nodeset="/ser:x/ser:pv/ser:handeling/ser:frequentie" type="xs:integer" constraint=". >= 1 and 12 >= ." readonly="true"/>

Where is the fault in this?

Best, Robin
 

Hello all,

 

We're struggling with constraints; basically we want to limit the values a user can put into a textfield to certain numbers (the corresponding instance data is integer typed; want to define upper and lower bounds).

 

The example we found on the Orbeon documentation site (using Xpath constraints) doesn't seem to yield any results. We use the element in a xforms:repeat construction.

 

The relevant part from the Xforms model:

 

<xforms:instance id="tabel">
                     <ser:x xmlns:ser="http://www.anonymous.org/services">
                        <ser:pv categorie="1.1" activiteit="A">
                            <ser:handeling beschrijving="B">
                                <ser:frequentie>1</ser:frequentie>
                                <ser:checked>false</ser:checked>
                            </ser:handeling>
                            <ser:handeling beschrijving="B">
                                <ser:frequentie>1</ser:frequentie>
                                <ser:checked>false</ser:checked>
                            </ser:handeling>           
                        </ser:pv>

                    </ser:x>

</xforms:instance>

 

<xforms:bind nodeset="/ser:x/ser:pv/ser:handeling/ser:frequentie" type="xs:integer" constraint=". >= 1 and 12 >= ." readonly="true"/>

 

Where is the fault in this?

 

Best, Robin
 

 

 Hello Benjamin (and others),

I've been playing a bit with this and I'm getting somewhere... just not where I want to be :-).

For now I want all my elements called "frequentie" to carry a lower bound (=1) (and later a flexible upper bound). When I try this with a simple contraint, Orbeon complains this cannot be done because the "gt" operator cannot be applied to a sequence:

A sequence of more than one item is not allowed as the second operand of 'gt'

How do I solve this?

What I basically want to do is to limit the input users can give to an xforms:input field bound to such a node. 

Best, Robin
 

-----Original message-----
From: Benjamin Jehle <[hidden email]>
Sent: Mon 05-07-2010 10:13
To: [hidden email];
Subject: [ops-users] Re: Constrains question

Hi Robin,

use "gt" instead of ">=".   Its XPath 2.0 :-) :

http://orbeon-forms-ops-users.24843.n4.nabble.com/problem-with-constraints-for-numeric-values-td1561112.html#a1590015

All the best Benjamin

Robin Diederen schrieb:

Hello all,

 

We're struggling with constraints; basically we want to limit the values a user can put into a textfield to certain numbers (the corresponding instance data is integer typed; want to define upper and lower bounds).

 

The example we found on the Orbeon documentation site (using Xpath constraints) doesn't seem to yield any results. We use the element in a xforms:repeat construction.

 

The relevant part from the Xforms model:

 

<xforms:instance id="tabel">
                     <ser:x xmlns:ser="http://www.anonymous.org/services">
                        <ser:pv categorie="1.1" activiteit="A">
                            <ser:handeling beschrijving="B">
                                <ser:frequentie>1</ser:frequentie>
                                <ser:checked>false</ser:checked>
                            </ser:handeling>
                            <ser:handeling beschrijving="B">
                                <ser:frequentie>1</ser:frequentie>
                                <ser:checked>false</ser:checked>
                            </ser:handeling>           
                        </ser:pv>

                    </ser:x>

</xforms:instance>

 

<xforms:bind nodeset="/ser:x/ser:pv/ser:handeling/ser:frequentie" type="xs:integer" constraint=". >= 1 and 12 >= ." readonly="true"/>

 

Where is the fault in this?

 

Best, Robin
 

 

--

Benjamin Jehle

Projektmanager

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