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Posted to users@cocoon.apache.org by Andre Cesta <aa...@yahoo.com> on 2006/01/11 18:53:51 UTC
Binding selection boxes to beans in cocoon forms.
Hi,
I wonder if you can help me bind selection boxes to beans.
(other properties on this very same form are binding just fine)
Code snippets and exception for my attempt are shown below.
I've searched the list archives and web without luck for solutions. The cocoon samples (car,
country selectors are for XML binding and did not help much on the bean binding side).
--------------------------------8<---------------------
Software: a study project on the area of hotel rooms management,
where room type is (luxe, standard, etc).
--------------------------------8<---------------------
Cocoon version: 2.1.7
--Bean Room.java (also questions posed on comments-----
public class Room ...
....
public Collection getRoomTypes() throws ... {
//returns a LinkedList by the way.
}
public void setRoomType(RoomType roomType) {
//Should I also provide a overriden version with Long argument
//to set the room type for binding reasons?
...
}
public RoomType getRoomType() {
...
}
--room_model.xml----------------8<---------------------
...
</fd:field>
<fd:field id="roomType" required="true">
<fd:datatype base="long"/>
<fd:selection-list type="flow-jxpath" list-path="roomTypes" label-path="description"
value-path="id" />
<fd:label>Room type:</fd:label>
</fd:field>
</fd:widgets>
...
--Exception thrown by cocoon--------8<---------------------
An Error Occurred
Incorrect value type for "data.roomType" (expected class java.lang.Long, got class
br.com.hotelman.datatypes.RoomType).
org.apache.avalon.framework.CascadingRuntimeException:
"resource://org/apache/cocoon/forms/flow/javascript/Form.js", line 184: uncaught JavaScript
exception: at room (file:/C:/cocoon-2.1.7/build/webapp/forms2/flow/room.js, Line 28) at
(resource://org/apache/cocoon/forms/flow/javascript/Form.js, Line 184):
java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
cause: java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
---Room.js (flow)---------------8<---------------------
function room(form) {
var id = cocoon.request.getParameter("id");
var room = null;
room = Packages.br.com.hotelman.datatypes.Room.findById(id);
form.load(room);
form.showForm("room-display-pipeline");
form.save(room);
cocoon.sendPage("room-success-pipeline", { "room": room });
}
--Pipeline-----------------------8<---------------------
<map:match pattern="room.flow*">
<map:call function="handleForm">
<map:parameter name="function" value="room"/>
<map:parameter name="form-definition" value="forms/room_model.xml"/>
<map:parameter name="bindingURI" value="forms/room_bind_bean.xml"/>
</map:call>
</map:match>
--Template room_template.xml----8<---------------------
...
<br/>
<ft:widget-label id="roomType"/>
<ft:widget id="roomType"/>
<br/>
...
<input type="submit"/>
...
---room_bind_bean.xml-----------8<---------------------
....
<fb:value id="roomType" path="roomType"/>
<fb:value id="lastInspected" path="lastInspected"/>
</fb:context>
--------------------------------8<---------------------
Feel free to package your working selection box form files and
bean and send to aacesta@yahoo.com so I can use as example.
Kind regards, Andre
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Re: Binding selection boxes to beans in cocoon forms?
Posted by Jason Johnston <co...@lojjic.net>.
Andre Cesta wrote:
> Jason,
>
> No problem putting this solution on the Wiki, except that I do not know how I could possibly edit
> the wiki.
Just like everyone else-- create an account and start editing. Start at
http://wiki.apache.org/cocoon/About
> I think we could add 8 lines or so to the following page:
> http://wiki.apache.org/cocoon/WoodyDatatypeReference?highlight=%28selection-list%29
Woody is deprecated so that page probably isn't the best place anymore.
I was thinking you could just add the page you created as a new page.
>
> Also, please have a look at the "Binding Framework" documentation. Search for setSelectionList on
> it. Did anybody manage to build a concrete example using that technique? Would you be able to
> post some more snippets of it? How are you setting the selected value from the list?
I have successfully used that setSelectionList method before, though not
from within a binding. You might have seen it already but see the
following javadoc page has a clear description of how that method works:
http://cocoon.apache.org/2.1/apidocs/org/apache/cocoon/forms/formmodel/Field.html#setSelectionList(java.lang.Object,%20java.lang.String,%20java.lang.String)
>
> --- Jason Johnston <co...@lojjic.net> wrote:
>
>
>>Andre Cesta wrote:
>>
>>>Hi All,
>>>
>>>After receiving zero help from the list on a question posted 6 days ago, I decided to post
>>
>>myself
>>
>>>the solution I found for it: http://geocities.com/aacesta/hibernateandcforms.html
>>>
>>>The problem is integrating hibernate beans with cocoon forms containing selection lists.
>>
>>There
>>
>>>were multiple problems faced with the binding of the selection list and then with the
>>
>>selection of
>>
>>>the default value.
>>>
>>>After searching the list archives, google, and also the cocoon examples I was able to put a
>>>solution/consolitated example together (the selection list example on cocoon are with XML not
>>
>>with
>>
>>>beans).
>>>
>>>Perhaps now the experts - that have provided no help at all - could review the example and
>>
>>suggest
>>
>>>improvements or better ways of doing it.
>>
>>No need to act indignant, that's not likely to motivate anyone to help
>>you out. Keep in mind everyone here, including the "experts", are just
>>volunteering their time. I for one looked at your problem and did not
>>see a solution at first glance, but was unable to take the time right
>>away to dig into it deeper. Nobody was trying to snub you or anything.
>>
>>
>>>I put the snippets for the solution on an URL for future use:
>>>http://geocities.com/aacesta/hibernateandcforms.html
>>
>>Very nice! Perhaps you could put this page on the Cocoon wiki, that way
>>people would be able to find it more easily?
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Re: Binding selection boxes to beans in cocoon forms?
Posted by Andre Cesta <aa...@yahoo.com>.
Jason,
No problem putting this solution on the Wiki, except that I do not know how I could possibly edit
the wiki. I think we could add 8 lines or so to the following page:
http://wiki.apache.org/cocoon/WoodyDatatypeReference?highlight=%28selection-list%29
Also, please have a look at the "Binding Framework" documentation. Search for setSelectionList on
it. Did anybody manage to build a concrete example using that technique? Would you be able to
post some more snippets of it? How are you setting the selected value from the list?
Best regards, Andre' Cesta
--- Jason Johnston <co...@lojjic.net> wrote:
> Andre Cesta wrote:
> > Hi All,
> >
> > After receiving zero help from the list on a question posted 6 days ago, I decided to post
> myself
> > the solution I found for it: http://geocities.com/aacesta/hibernateandcforms.html
> >
> > The problem is integrating hibernate beans with cocoon forms containing selection lists.
> There
> > were multiple problems faced with the binding of the selection list and then with the
> selection of
> > the default value.
> >
> > After searching the list archives, google, and also the cocoon examples I was able to put a
> > solution/consolitated example together (the selection list example on cocoon are with XML not
> with
> > beans).
> >
> > Perhaps now the experts - that have provided no help at all - could review the example and
> suggest
> > improvements or better ways of doing it.
>
> No need to act indignant, that's not likely to motivate anyone to help
> you out. Keep in mind everyone here, including the "experts", are just
> volunteering their time. I for one looked at your problem and did not
> see a solution at first glance, but was unable to take the time right
> away to dig into it deeper. Nobody was trying to snub you or anything.
>
> >
> > I put the snippets for the solution on an URL for future use:
> > http://geocities.com/aacesta/hibernateandcforms.html
>
> Very nice! Perhaps you could put this page on the Cocoon wiki, that way
> people would be able to find it more easily?
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
>
>
--------------------------------------------
Andre Cesta, BEng, MSc, SCJP, SCJA
http://geocities.com/aacesta
--------------------------------------------
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Re: Binding selection boxes to beans in cocoon forms?
Posted by Jason Johnston <co...@lojjic.net>.
Andre Cesta wrote:
> Hi All,
>
> After receiving zero help from the list on a question posted 6 days ago, I decided to post myself
> the solution I found for it: http://geocities.com/aacesta/hibernateandcforms.html
>
> The problem is integrating hibernate beans with cocoon forms containing selection lists. There
> were multiple problems faced with the binding of the selection list and then with the selection of
> the default value.
>
> After searching the list archives, google, and also the cocoon examples I was able to put a
> solution/consolitated example together (the selection list example on cocoon are with XML not with
> beans).
>
> Perhaps now the experts - that have provided no help at all - could review the example and suggest
> improvements or better ways of doing it.
No need to act indignant, that's not likely to motivate anyone to help
you out. Keep in mind everyone here, including the "experts", are just
volunteering their time. I for one looked at your problem and did not
see a solution at first glance, but was unable to take the time right
away to dig into it deeper. Nobody was trying to snub you or anything.
>
> I put the snippets for the solution on an URL for future use:
> http://geocities.com/aacesta/hibernateandcforms.html
Very nice! Perhaps you could put this page on the Cocoon wiki, that way
people would be able to find it more easily?
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
For additional commands, e-mail: users-help@cocoon.apache.org
Re: Binding selection boxes to beans in cocoon forms?
Posted by Andre Cesta <aa...@yahoo.com>.
Hi All,
After receiving zero help from the list on a question posted 6 days ago, I decided to post myself
the solution I found for it: http://geocities.com/aacesta/hibernateandcforms.html
The problem is integrating hibernate beans with cocoon forms containing selection lists. There
were multiple problems faced with the binding of the selection list and then with the selection of
the default value.
After searching the list archives, google, and also the cocoon examples I was able to put a
solution/consolitated example together (the selection list example on cocoon are with XML not with
beans).
Perhaps now the experts - that have provided no help at all - could review the example and suggest
improvements or better ways of doing it.
I put the snippets for the solution on an URL for future use:
http://geocities.com/aacesta/hibernateandcforms.html
Andre'
___________________________________________________________
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Re: Binding selection boxes to beans in cocoon forms?
Posted by Andre Cesta <aa...@yahoo.com>.
Hi,
Managed to solve one of the problems so that the selection list now shows, but it shows empty.
Still debugging why it shows empty when there is DB data loaded on the bean to display.
To get the selection list to show:
Hibernate required the method:
> public void setRoomType(RoomType roomType) {
as shown below.
But for Cocoon I had to create the following "overriden" method
otherwise Cocoon would keep throwing:
> > An Error Occurred
> > Incorrect value type for "data.roomType" (expected class java.lang.Long, got class
> > br.com.hotelman.datatypes.RoomType).
//"overriden" method created for cocoon binding
public void setRoomTypeId(Long id) {
}
Also created the corresponding getter,
and then changed the following:
<fd:field id="roomTypeId" required="true">
<fd:datatype base="long"/>
<fd:selection-list type="flow-jxpath" list-path="roomTypes" label-path="description"
value-path="id" />
<fd:label>Room type:</fd:label>
</fd:field>
To use roomTypeId (instead of roomType). And also the
<fb:value id="roomTypeId" path="roomTypeId"/>
And
<ft:widget-label id="roomTypeId"/>
<ft:widget id="roomTypeId"/>
Still working on why the selection list displays empty.
Kind regards, ANdre'
--- Andre Cesta <aa...@yahoo.com> wrote:
>
> Can anybody answer this? Perhaps send me an email with
> working selection box <-> bean binding classes/pipeline/forms
> example?
>
> --- Andre Cesta <aa...@yahoo.com> wrote:
>
> > Hi,
> >
> > I wonder if you can help me bind selection boxes to beans.
> > (other properties on this very same form are binding just fine)
> >
> > Code snippets and exception for my attempt are shown below.
> > I've searched the list archives and web without luck for solutions. The cocoon samples (car,
> > country selectors are for XML binding and did not help much on the bean binding side).
> > --------------------------------8<---------------------
> > Software: a study project on the area of hotel rooms management,
> > where room type is (luxe, standard, etc).
> > --------------------------------8<---------------------
> > Cocoon version: 2.1.7
> > --Bean Room.java (also questions posed on comments-----
> > public class Room ...
> > ....
> > public Collection getRoomTypes() throws ... {
> > //returns a LinkedList by the way.
> > }
> >
> > public void setRoomType(RoomType roomType) {
> > //Should I also provide a overriden version with Long argument
> > //to set the room type for binding reasons?
> > ...
> > }
> >
> > public RoomType getRoomType() {
> > ...
> > }
> > --room_model.xml----------------8<---------------------
> > ...
> > </fd:field>
> > <fd:field id="roomType" required="true">
> > <fd:datatype base="long"/>
> > <fd:selection-list type="flow-jxpath" list-path="roomTypes" label-path="description"
> > value-path="id" />
> > <fd:label>Room type:</fd:label>
> > </fd:field>
> > </fd:widgets>
> > ...
> > --Exception thrown by cocoon--------8<---------------------
> > An Error Occurred
> > Incorrect value type for "data.roomType" (expected class java.lang.Long, got class
> > br.com.hotelman.datatypes.RoomType).
> >
> > org.apache.avalon.framework.CascadingRuntimeException:
> > "resource://org/apache/cocoon/forms/flow/javascript/Form.js", line 184: uncaught JavaScript
> > exception: at room (file:/C:/cocoon-2.1.7/build/webapp/forms2/flow/room.js, Line 28) at
> > (resource://org/apache/cocoon/forms/flow/javascript/Form.js, Line 184):
> > java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
> > java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
> >
> > cause: java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
> > java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
> > ---Room.js (flow)---------------8<---------------------
> > function room(form) {
> > var id = cocoon.request.getParameter("id");
> > var room = null;
> > room = Packages.br.com.hotelman.datatypes.Room.findById(id);
> > form.load(room);
> > form.showForm("room-display-pipeline");
> > form.save(room);
> > cocoon.sendPage("room-success-pipeline", { "room": room });
> > }
> > --Pipeline-----------------------8<---------------------
> > <map:match pattern="room.flow*">
> > <map:call function="handleForm">
> > <map:parameter name="function" value="room"/>
> > <map:parameter name="form-definition" value="forms/room_model.xml"/>
> > <map:parameter name="bindingURI" value="forms/room_bind_bean.xml"/>
> > </map:call>
> > </map:match>
> > --Template room_template.xml----8<---------------------
> > ...
> > <br/>
> > <ft:widget-label id="roomType"/>
> > <ft:widget id="roomType"/>
> > <br/>
> > ...
> > <input type="submit"/>
> > ...
> >
> > ---room_bind_bean.xml-----------8<---------------------
> > ....
> > <fb:value id="roomType" path="roomType"/>
> > <fb:value id="lastInspected" path="lastInspected"/>
> > </fb:context>
> > --------------------------------8<---------------------
> >
> > Feel free to package your working selection box form files and
> > bean and send to aacesta@yahoo.com so I can use as example.
> >
> > Kind regards, Andre
> >
> >
> >
> > ___________________________________________________________
> > NEW Yahoo! Cars - sell your car and browse thousands of new and used cars online!
> > http://uk.cars.yahoo.com/
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> > For additional commands, e-mail: users-help@cocoon.apache.org
> >
> >
>
>
>
>
>
>
> ___________________________________________________________
> Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail
> http://uk.messenger.yahoo.com
>
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> For additional commands, e-mail: users-help@cocoon.apache.org
>
>
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Re: Binding selection boxes to beans in cocoon forms?
Posted by Andre Cesta <aa...@yahoo.com>.
Can anybody answer this? Perhaps send me an email with
working selection box <-> bean binding classes/pipeline/forms
example?
--- Andre Cesta <aa...@yahoo.com> wrote:
> Hi,
>
> I wonder if you can help me bind selection boxes to beans.
> (other properties on this very same form are binding just fine)
>
> Code snippets and exception for my attempt are shown below.
> I've searched the list archives and web without luck for solutions. The cocoon samples (car,
> country selectors are for XML binding and did not help much on the bean binding side).
> --------------------------------8<---------------------
> Software: a study project on the area of hotel rooms management,
> where room type is (luxe, standard, etc).
> --------------------------------8<---------------------
> Cocoon version: 2.1.7
> --Bean Room.java (also questions posed on comments-----
> public class Room ...
> ....
> public Collection getRoomTypes() throws ... {
> //returns a LinkedList by the way.
> }
>
> public void setRoomType(RoomType roomType) {
> //Should I also provide a overriden version with Long argument
> //to set the room type for binding reasons?
> ...
> }
>
> public RoomType getRoomType() {
> ...
> }
> --room_model.xml----------------8<---------------------
> ...
> </fd:field>
> <fd:field id="roomType" required="true">
> <fd:datatype base="long"/>
> <fd:selection-list type="flow-jxpath" list-path="roomTypes" label-path="description"
> value-path="id" />
> <fd:label>Room type:</fd:label>
> </fd:field>
> </fd:widgets>
> ...
> --Exception thrown by cocoon--------8<---------------------
> An Error Occurred
> Incorrect value type for "data.roomType" (expected class java.lang.Long, got class
> br.com.hotelman.datatypes.RoomType).
>
> org.apache.avalon.framework.CascadingRuntimeException:
> "resource://org/apache/cocoon/forms/flow/javascript/Form.js", line 184: uncaught JavaScript
> exception: at room (file:/C:/cocoon-2.1.7/build/webapp/forms2/flow/room.js, Line 28) at
> (resource://org/apache/cocoon/forms/flow/javascript/Form.js, Line 184):
> java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
> java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
>
> cause: java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
> java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
> ---Room.js (flow)---------------8<---------------------
> function room(form) {
> var id = cocoon.request.getParameter("id");
> var room = null;
> room = Packages.br.com.hotelman.datatypes.Room.findById(id);
> form.load(room);
> form.showForm("room-display-pipeline");
> form.save(room);
> cocoon.sendPage("room-success-pipeline", { "room": room });
> }
> --Pipeline-----------------------8<---------------------
> <map:match pattern="room.flow*">
> <map:call function="handleForm">
> <map:parameter name="function" value="room"/>
> <map:parameter name="form-definition" value="forms/room_model.xml"/>
> <map:parameter name="bindingURI" value="forms/room_bind_bean.xml"/>
> </map:call>
> </map:match>
> --Template room_template.xml----8<---------------------
> ...
> <br/>
> <ft:widget-label id="roomType"/>
> <ft:widget id="roomType"/>
> <br/>
> ...
> <input type="submit"/>
> ...
>
> ---room_bind_bean.xml-----------8<---------------------
> ....
> <fb:value id="roomType" path="roomType"/>
> <fb:value id="lastInspected" path="lastInspected"/>
> </fb:context>
> --------------------------------8<---------------------
>
> Feel free to package your working selection box form files and
> bean and send to aacesta@yahoo.com so I can use as example.
>
> Kind regards, Andre
>
>
>
> ___________________________________________________________
> NEW Yahoo! Cars - sell your car and browse thousands of new and used cars online!
> http://uk.cars.yahoo.com/
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
>
>
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