Re: How to edit different data with one page (basically multiple "instances" of one page) ?

[Howard Lewis Ship <hl...@gmail.com>]

Tapestry is somewhat more efficient.  When creating a
client-persistent page property, the properties are bundled together,
serialized to an object stream, optionally compressed, then MIME
encoded.  So you have a smaller number of much larger query
parameters. You also get some security-by-obscurity (at least enough
to keep it from prying eyes).

MB extended this, allowing for properties that stay persistent only as
long as you stay on a particular page, then are discarded.

On 8/18/05, Patrick Casey <pa...@adelphia.net> wrote:
> 
>         I used to be a firm believer in that camp as well, but I'm getting a
> bit more pragmatic in my old age. Keeping everything in the request can make
> for a nightmare of hidden fields and ridiculously long edit links and
> whatnot e.g. the "edit this dog" link has to encode:
> 
>         EditTarget=Dog
>         EditKey=42
>         PreviousSource=List
>         PreviousTarget=Dogs
>         PreviousQuery=Breed%"purebread"
>         PreviousSort=Weight
> 
>         It gets so that I'm passing around huge masses of data with every
> query that just feels excessive. That and my life gets annoying if I want to
> add a new field e.g.
> 
>         PreviousSortDirection=ASC
> 
>         So these days I'm using a hybrid between client and server
> persistence. Dunno if it's the ideal solution mind you, but it seems to work
> for me :).
> 
>         -- Pat
> 
> > -----Original Message-----
> > From: Paul Cantrell [mailto:cantrell@pobox.com]
> > Sent: Thursday, August 18, 2005 10:05 AM
> > To: Tapestry users
> > Subject: Re: How to edit different data with one page (basically multiple
> > "instances" of one page) ?
> >
> > The simpler approach may be to not use persistence at all -- make
> > everything request-based, and pass values through hidden fields as
> > necessary. Trying to make what you're describing work with the
> > session is possible, but will be a headache.
> >
> > This is a good general strategy. I prefer not to keep things in the
> > session unless they really belong there -- e.g. login, locale....
> >
> > Cheers,
> >
> > Paul
> >
> > On Aug 18, 2005, at 10:37 AM, Patrick Casey wrote:
> >
> > >
> > >     You're going to need to do your own persistence strategy. The
> > > simplest solution is just to put the unique key of each invoice in
> > > the edit
> > > form as a hidden field. If you put it on *top* of the form, then it
> > > is set
> > > first during the rewind and you can use its being set as a trigger to
> > > bootstrap the rest of the invoice out of persistent storage.
> > >
> > >     --- Pat
> > >
> > >
> > >> -----Original Message-----
> > >> From: Petr Sakar [mailto:saki@chare.cz]
> > >> Sent: Thursday, August 18, 2005 9:13 AM
> > >> To: tapestry-user@jakarta.apache.org
> > >> Subject: How to edit different data with one page (basically multiple
> > >> "instances" of one page) ?
> > >>
> > >> Hello list,
> > >> newbie question:
> > >>
> > >> I have a page with form to edits some data (eg. invoce1). How
> > >> shall I do
> > >> it to be able to use the same page to edit different data (eg.
> > >> invoice2)
> > >> at the same time, so I can edit both invoices simultanously ?
> > >>
> > >> In different words user has two windows opened and works with
> > >> both, both
> > >> windows are displaying the same page, just displayed data are
> > >> diffferent
> > >> instance(record) of some class(table). Data are kept in session for
> > >> example as invoice1, invoice2.
> > >>
> > >> Thanx for any ideas.
> > >>
> > >> saki
> > >>
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> > >>
> > >
> > >
> > >
> > >
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> > >
> > >
> > >
> >
> > _________________________________________________________________
> >
> > "I never let my schooling get in the way of my education."
> > -- Mark Twain
> >
> >
> >
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> 
> 
> 
> 
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> 


-- 
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind

Professional Tapestry training, mentoring, support
and project work.  http://howardlewisship.com

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