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Posted to users@tapestry.apache.org by Voors Paul <pa...@atp.nl> on 2006/06/26 16:18:00 UTC
Re(2): Multiple objects in a form
Peter,
Thanks for the fast reply.
I have an additional question, if you don't mind:
keyExpression="id"
I presume that the "id" in keyExpression is the (customer)id in the (Customer)object.
Will this work when i render new / empty objects?
Paul
Peter Svensson (06/26/2006 16:14):
>In the For component, it is possible to specifiy a "value" parameter, which
>will hold the current object for every pass of the for loop. If we take the
>example from the tapestry page and shorten it a bit;
>
><tr jwcid="@For" source="ognl:customerList" keyExpression="id"
> value="ognl:customer" element="tr">
> <td><span jwcid="@TextField" value="ognl:customer.fullName"/></td>
></tr>
>
>
>Then if you have ten customers in customerList, there will be ten textFields
>shown, and each of those TextFields will call getFullName() on the specific
>customer object when it renders, and call the setFullName(String foo) method
>on the specific customer object when updated. IIRC.
>
>Cheers,
>PS
>
>
>On 26 Jun 2006 15:51:00 +0200, Voors Paul <pa...@atp.nl> wrote:
>>
>> Hello All,
>>
>> We have a page with a form were we ask the customer standard information
>> about name an address etc.
>> We ask the information for multiple customers an for each customer we use
>> a seperate object.
>> In the form we want to bind the firstName box, lastName box etc to
>> corresponding fields in the objects for eacht costomer. If we use the normal
>> for loop only the last customer is passed the others are lost.
>> We cannot find an exammple of how to solve this problem. In the for loop
>> documentation the IprimaryKeyConverter is mentioned, but We cannot figure
>> out how to implement this properly.
>> Can someone help us with an example or advise?
>>
>>
>> Thanks a lot in advance!
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
>> For additional commands, e-mail: users-help@tapestry.apache.org
>>
>>
>
Met vriendelijke groet,
Paul Voors
function: Java Web Developer
department: Webdevelopment
Company:
ATP - The Advanced Travel Partner
Beechavenue 101 | 1119 RB Schiphol-Rijk | The Netherlands
P.O. Box 75672 | 1118 ZS Schiphol-Rijk | The Netherlands
T +31 20 2011363 | F +31 20 2011362
e-mail: paul@atp.nl
www: www.atp.nl
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Re: Re(2): Multiple objects in a form
Posted by Peter Svensson <ps...@gmail.com>.
And I'm pretty certain that's a yes :)
Cheers,
PS
On 6/26/06, Gentry, Michael (Contractor) <mi...@fanniemae.com>
wrote:
>
> I was just discussing this on the Cayenne list last week. I chose to
> get the hash code of the object (customer) and return it to the
> keyExpression. I figured that was probably unique enough for my uses
> (unlikely to have clashes over a small set of objects). Also, this
> would work for new/uncommitted objects (no primary key) as well as
> persisted ones. Seems to work OK in my preliminary tests.
>
> HTH,
>
> /dev/mrg
>
>
> -----Original Message-----
> From: Voors Paul [mailto:paul@atp.nl]
> Sent: Monday, June 26, 2006 10:18 AM
> To: Tapestry users
> Subject: Re(2): Multiple objects in a form
>
>
> Peter,
>
> Thanks for the fast reply.
>
> I have an additional question, if you don't mind:
>
> keyExpression="id"
> I presume that the "id" in keyExpression is the (customer)id in the
> (Customer)object.
> Will this work when i render new / empty objects?
>
> Paul
>
> Peter Svensson (06/26/2006 16:14):
> >In the For component, it is possible to specifiy a "value" parameter,
> which
> >will hold the current object for every pass of the for loop. If we take
> the
> >example from the tapestry page and shorten it a bit;
> >
> ><tr jwcid="@For" source="ognl:customerList" keyExpression="id"
> > value="ognl:customer" element="tr">
> > <td><span jwcid="@TextField" value="ognl:customer.fullName"/></td>
> ></tr>
> >
> >
> >Then if you have ten customers in customerList, there will be ten
> textFields
> >shown, and each of those TextFields will call getFullName() on the
> specific
> >customer object when it renders, and call the setFullName(String foo)
> method
> >on the specific customer object when updated. IIRC.
> >
> >Cheers,
> >PS
> >
> >
> >On 26 Jun 2006 15:51:00 +0200, Voors Paul <pa...@atp.nl> wrote:
> >>
> >> Hello All,
> >>
> >> We have a page with a form were we ask the customer standard
> information
> >> about name an address etc.
> >> We ask the information for multiple customers an for each customer we
> use
> >> a seperate object.
> >> In the form we want to bind the firstName box, lastName box etc to
> >> corresponding fields in the objects for eacht costomer. If we use the
> normal
> >> for loop only the last customer is passed the others are lost.
> >> We cannot find an exammple of how to solve this problem. In the for
> loop
> >> documentation the IprimaryKeyConverter is mentioned, but We cannot
> figure
> >> out how to implement this properly.
> >> Can someone help us with an example or advise?
> >>
> >>
> >> Thanks a lot in advance!
> >>
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> >> For additional commands, e-mail: users-help@tapestry.apache.org
> >>
> >>
> >
>
> Met vriendelijke groet,
>
> Paul Voors
>
> function: Java Web Developer
> department: Webdevelopment
> Company:
> ATP - The Advanced Travel Partner
> Beechavenue 101 | 1119 RB Schiphol-Rijk | The Netherlands
> P.O. Box 75672 | 1118 ZS Schiphol-Rijk | The Netherlands
> T +31 20 2011363 | F +31 20 2011362
> e-mail: paul@atp.nl
> www: www.atp.nl
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
RE: Re(2): Multiple objects in a form
Posted by "Gentry, Michael (Contractor)" <mi...@fanniemae.com>.
I was just discussing this on the Cayenne list last week. I chose to
get the hash code of the object (customer) and return it to the
keyExpression. I figured that was probably unique enough for my uses
(unlikely to have clashes over a small set of objects). Also, this
would work for new/uncommitted objects (no primary key) as well as
persisted ones. Seems to work OK in my preliminary tests.
HTH,
/dev/mrg
-----Original Message-----
From: Voors Paul [mailto:paul@atp.nl]
Sent: Monday, June 26, 2006 10:18 AM
To: Tapestry users
Subject: Re(2): Multiple objects in a form
Peter,
Thanks for the fast reply.
I have an additional question, if you don't mind:
keyExpression="id"
I presume that the "id" in keyExpression is the (customer)id in the
(Customer)object.
Will this work when i render new / empty objects?
Paul
Peter Svensson (06/26/2006 16:14):
>In the For component, it is possible to specifiy a "value" parameter,
which
>will hold the current object for every pass of the for loop. If we take
the
>example from the tapestry page and shorten it a bit;
>
><tr jwcid="@For" source="ognl:customerList" keyExpression="id"
> value="ognl:customer" element="tr">
> <td><span jwcid="@TextField" value="ognl:customer.fullName"/></td>
></tr>
>
>
>Then if you have ten customers in customerList, there will be ten
textFields
>shown, and each of those TextFields will call getFullName() on the
specific
>customer object when it renders, and call the setFullName(String foo)
method
>on the specific customer object when updated. IIRC.
>
>Cheers,
>PS
>
>
>On 26 Jun 2006 15:51:00 +0200, Voors Paul <pa...@atp.nl> wrote:
>>
>> Hello All,
>>
>> We have a page with a form were we ask the customer standard
information
>> about name an address etc.
>> We ask the information for multiple customers an for each customer we
use
>> a seperate object.
>> In the form we want to bind the firstName box, lastName box etc to
>> corresponding fields in the objects for eacht costomer. If we use the
normal
>> for loop only the last customer is passed the others are lost.
>> We cannot find an exammple of how to solve this problem. In the for
loop
>> documentation the IprimaryKeyConverter is mentioned, but We cannot
figure
>> out how to implement this properly.
>> Can someone help us with an example or advise?
>>
>>
>> Thanks a lot in advance!
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
>> For additional commands, e-mail: users-help@tapestry.apache.org
>>
>>
>
Met vriendelijke groet,
Paul Voors
function: Java Web Developer
department: Webdevelopment
Company:
ATP - The Advanced Travel Partner
Beechavenue 101 | 1119 RB Schiphol-Rijk | The Netherlands
P.O. Box 75672 | 1118 ZS Schiphol-Rijk | The Netherlands
T +31 20 2011363 | F +31 20 2011362
e-mail: paul@atp.nl
www: www.atp.nl
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