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From "Chris Newland" <chris.newl...@emorphia.com>
Subject RE: C2: Action to modify request parameters
Date Wed, 05 Sep 2001 10:03:13 GMT
Hi Konstantin,

Sorry for appearing stupid but I still don't see how attributes can help me.

here is the original situation:

1) Form is submitted and form values are set into request *parameters*
2) DatabaseAddAction reads request *parameters* and puts them into database.

But I need to manipulate the parameters first so I thought I'd put an action
between the form and the DatabaseAddAction which alters the request
parameters:

1) Form values set into request *parameters*

2) My action reads values from request *parameters*

I cannot set new values back into request parameters

If I set the new values into request attributes then the DatabaseAddAction
ignores these and reads the original values from the request parameters.

If I set the new values into sitemap parameters then the DatabaseAddAction
ignores these and reads the original values from the request parameters.

3) DatabaseAddAction reads request *parameters*

Request attributes are different from request parameters aren't they?

Thanks for your patience,

Chris

> -----Original Message-----
> From: Piroumian, Konstantin [mailto:KPiroumian@flagship.ru]
> Sent: 05 September 2001 10:43
> To: cocoon-users@xml.apache.org
> Subject: Re: C2: Action to modify request parameters
>
>
> Why you don't want to use request attributes? They are the right place of
> holding this kind of information and passing between different processing
> layers: actions, pages, etc.
>
>
> ----- Original Message -----
> From: "Chris Newland" <chris.newland@emorphia.com>
> To: <cocoon-users@xml.apache.org>
> Sent: Wednesday, September 05, 2001 1:30 PM
> Subject: RE: C2: Action to modify request parameters
>
>
> This is what I thought :(
>
> So it is not possible to use another action to modify the request
> parameters
> that will be picked up by DatabaseAddAction since I would have to put the
> updated values into the sitemap parameters and DatabaseAddAction
> only looks
> in the request parameters?
>
> Guess I'll have to subclass the Database<X>Action classes in
> order to filter
> the parameters.
>
> Thanks,
>
> Chris
>
> > -----Original Message-----
> > From: Jrn Heid [mailto:heid@fh-heilbronn.de]
> > Sent: 05 September 2001 10:22
> > To: cocoon-users@xml.apache.org
> > Subject: AW: C2: Action to modify request parameters
> >
> >
> > No. There are two maps.
> >
> > -----Ursprngliche Nachricht-----
> > Von: Chris Newland [mailto:chris.newland@emorphia.com]
> > Gesendet: Mittwoch, 5. September 2001 11:14
> > An: cocoon-users@xml.apache.org
> > Betreff: RE: C2: Action to modify request parameters
> >
> >
> > Does this mean that sitemap parameters override request
> parameters of the
> > same name?
> >
> > Form:
> > Set request parameter
> >
> > --->
> >
> > Filter action:
> > Get request parameter
> > Alter parameter
> > Save in sitemap parameter
> >
> > --->
> >
> > DatabaseAddAction:
> > use sitemap parameter instead of request parameter with same name
> >
> > Otherwise, I cannot chain these actions without altering the code in
> > DatabaseAddAction (which I am trying not to do)
> >
> > Thanks,
> >
> > Chris
> >
> > > -----Original Message-----
> > > From: Jrn Heid [mailto:heid@fh-heilbronn.de]
> > > Sent: 04 September 2001 19:14
> > > To: cocoon-users@xml.apache.org
> > > Subject: AW: C2: Action to modify request parameters
> > >
> > >
> > > I think not. But you can use sitemap params (that's the
> > preferred way for
> > > actions). And this works with the sitemap, other actions, xslt...
> > >
> > > -----Ursprngliche Nachricht-----
> > > Von: Chris Newland [mailto:chris.newland@emorphia.com]
> > > Gesendet: Dienstag, 4. September 2001 19:34
> > > An: Cocoon-Users
> > > Betreff: C2: Action to modify request parameters
> > >
> > >
> > > Hi All,
> > >
> > > I'm writing an action that is a pre-filter to DatabaseAddAction that
> > > modifies request parameters before they are sent to the database.
> > >
> > > In the map() method of my action I can get the parameters using:
> > >
> > > Request req = (Request)objectModel.get(Constants.REQUEST_OBJECT);
> > > String my_param = (String)request.getParameter("my_param");
> > >
> > > // process parameter here
> > >
> > > But there is no request.setParameter() to return the updated
> > value to the
> > > request.
> > >
> > > Is this possible? (I hope so)
> > >
> > > Thanks,
> > >
> > > Chris
> > >
> > > --
> > > Chris Newland
> > > Software Research Engineer
> > >
> > > Emorphia Ltd
> > > Registered in England.  4133002
> > > Mill House, Station Approach, Harlow Mill, Harlow, Essex, CM20 2EL, UK
> > >
> > > Email: chris.newland@emorphia.com
> > > Tel: +44 (0)1279 450100
> > > Fax: +44 (0)1279 450102
> > >
> > > Check out FIPA-OS at http://fipa-os.sourceforge.net/
> > >
> > > This message may contain information proprietary to Emorphia so any
> > > unauthorised disclosure, copying or distribution of its contents
> > > is strictly
> > > prohibited.
> > >
> > >
> > >
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