Hi,
It looks like your unlucky using Tiles ;-).
Fabio Mancinelli wrote:
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Hi all,
Sorry for this lengthy mail but I am getting crazy!
I am working with Struts and Tiles and I am developing a small site to
test (and stress this technology)
I reused some layouts taken from the tiles documentation. The standard
page layout with the classical header, body, footer attributes and, in
particular I took the vboxLayout:
%
Iterator i = list.iterator();
while(i.hasNext()) {
String name = (String)i.next();
%
tiles:insert name=%= name % flush=true/
%
}
%
What I want is a page with the standard layout whose body is a vboxLayout
with some tiles.
To do this I have to write the following files:
main.jsp
If you use the tiles-config.xml, you can replace this page by a Struts
action forwarding to a definition.
mainBody.jsp
As it use the vboxLayout.jsp, you can alsoreplace this page by a
definition
t1.jsp
t2.jsp
These are your bodies, you need them ;-)
Where main is a page which uses the standard layout, mainBody is a simple
.jsp with only a
tiles:insert page=vboxLayout.jsp
tiles:putList name=list
tiles:add value=t1.jsp/
tiles:add value=t2.jsp/
...
t1, t2 are .jsp tiles.
Now my questions are:
1) The mainBody contains a list of tiles some of which might be text-only.
I would like to do something like this:
tiles:insert page=vboxLayout.jsp
tiles:putList name=list
tiles:add value=t1.jsp/
tiles:add type=stringThis is an embedded text only tile/tiles:add
...
In this way I would get rid of all the .jsp which contains only text/html
and are peculiar to a single page. But this doesn't work.
This is useful only if the body contains small text, and preferably
without tags.
Specifying type=String should work.
2) Another problem is when a tile, let's say t1.jsp, needs some attributes
to be passed in order to be instantiated. Let's suppose that the tile t1
needs a title. How do I pass that attribute in the previous example?
You can define another definition declaring your attributes. Then, you
specify the definition instead of the jsp url:
definition name=t1 page=/t1.jsp
put name=title value=Yupi/
definition/
definition name=body page=/layouts/vboxLayout.jsp
putList name=list
add value=t1/
add value=/t1.jsp/
/putList
definition/
tiles:insert page=vboxLayout.jsp
tiles:putList name=list
tiles:add value=t1.jsp
tiles:put name=title value=Yupi/
/tiles:add
tiles:add value=t2.jsp/
...
Doesn't work.
I tried to write a local definition before actually inserting the tile:
tiles:definition id=instantiatedT1 page=t1.jsp
tiles:put name=title value=Yupi/
/tiled:definition
This define a definition defined in a jsp scope.
tiles:insert page=vboxLayout.jsp
tiles:putList name=list
tiles:add value=instantiatedT1/
You need to do somethink like:
tiles:add beanName=instantiatedT1/
But I am not sure that the vboxLayout support a definition bean as list
element. Definitions are more useful when defined in the tiles factory
from a tiles-config.xml file.
tiles:add value=t2.jsp/
...
But this doesn't work too. I tried also to specify different scopes for
the definition (even the application one!) and different types for the
tiles:add tag (namely type=definition and also
beanName=instantiatedT1).
The only way I've found to make this work is to put the definition inside
the tiles-config.xml, but this would be equivalent in having a separate t1.jsp
with no parameters.
I suppose the problem is in the vboxLayout but I cannot figure out how to
write a layout which supports what I said in 1).
The problem in 2) still has no solution (to me).
I suggest that you use the tiles-config.xml file. It will help reduce
the number of pages. I also suggest to have one jsp per tiles, and to
not write big pieces of body inside a put tag.
Also, don't forget that you can write your own layout doing the exact
behavior that you are looking for.
Cedric
A presto,
Fabio
- --
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Fabio Mancinelli, PhD student EMail : [EMAIL PROTECTED]
Dipartimento di Informatica WWW : http://www.di.univaq.it/~mancinel
Universita' dell'Aquila
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