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From Stefan Klein <skl...@zipi.fi.upm.es>
Subject Re: database forms
Date Fri, 21 Mar 2003 09:48:22 GMT
Hi Thorsten,

thanks for your reply. I've been pondering about your mail for a little
while now. The xsl looks like a clever idea. A few things remain unclear to
me:

What way do you use to get the data out of the DB. SQL-Transformer?

What do you refer to by static and variable data?
static=the definition of the form (as in your XML example), variable=the
data from the DB?

How do you get the data back into the database? using actions, I suppose?

In your example you've only got textboxes. With listboxes (<select> in HTML)
it gets a bit trickier, since you'll have to get the possible values from a
different table first. Have you got an idea for that, too?
Maybing using XSP-ESQL?
Or using XSL to generate a query that you can send through the
SQLTransformer and the whole through another XSL in your style?
I'll be thinking about it and let you know when I come up with something.

Regards
Stefan

----- Original Message -----
From: "Scherler" <thorsten.scherler@wyona.org>
To: <cocoon-users@xml.apache.org>
Sent: Thursday, March 20, 2003 5:58 PM
Subject: Re: database forms


> Hi Stefan,
>
> I have to master the same task. I am working in a telephone marketing
> department and writing the call agent DBs. I will introduce the 3 tier
> modell and will have to get rid of my formulars (VBA).
> We have some static fields (which are always the same -> address &
> contact person) and some variable (we have different campaigns where the
> questions to ask will always be different)
>
> I thought about that:
> 1) select a db (pool) => campaign Example
> 2) get the static data with <xsl:template match="static"/>
> 3) get the variable data and put it in a different tag
> 4) use a transform to create a html form (including validation through
> JavaScript)
>
> to 4)   like that xslt:
>  <xsl:template match="input/*">
>         <input>
>             <xsl:attribute name="type"><xsl:value-of
> select="name()"/></xsl:attribute>
>             <!-- -->
>             <xsl:choose>
>                 <xsl:when test="normalize-space(text())!=''">
>                     <xsl:attribute name="value"><xsl:value-of
> select="normalize-space(text())"/></xsl:attribute>
>                 </xsl:when>
>             </xsl:choose>
>         </input>
>     </xsl:template>
>
> with this xml:
> <form action="http://www.google.com/search" name="f">
> <input>
> <hidden name="ie">UTF-8</hidden>
> <hidden name="oe">UTF-8</hidden>
> <hidden name="hl">eng</hidden>
> <text name="q" maxLength="256" size="55"/>
> <submit name="btnG">Google-Search</submit>
> </input>
> <script>document.f.q.focus();</script>
> </form>
>
> ...
>
> King regards
> Thorsten
>
> Stefan Klein wrote:
>
> >Hi all,
> >
> >I am looking for the quickest way to write database forms. It is
something
> >that I will be doing thousands of times, so the goal is to find some
really
> >efficient way.
> >
> >Ideally it would look something like:
> ><table>table name</table> - selects the table
> >
> ><inputbox ref="field" />   - a simple input field bound to a  field in
the
> >table
> >
> ><listbox ref="field" values="table.field" entries="table.field"/>  - a
> >listbox bound to a field, entries defines the options visible to the
user,
> >values defines what is internally stored in the field. obviously the
table
> >would be the same (useful for foreign key entries)
> >
> ><checkbox ...
> >
> >
> >The form would be populated automatically with the database values (the
> >current record being selected by a request parameter) and update the
values
> >on submit.
> >
> >What I've been pondering about for quite a while now is what would be the
> >best way to implement this in cocoon.
> >
> >I looked into the "departments and employees"-tutorial delivered with
> >cocoon2, which is quite close to what I'd like, but still not it. For
> >example I don't like having to define listboxes and populate the form by
> >using separate esql-statements. What data to fill into the form should
> >already be specified in the form definition.
> >My first idea was to start from there and implement a logicsheet that
would
> >allow me to define tags like the ones above.
> >
> >Then I looked into xmlforms and liked them a lot. However:
> >1. I am still looking for a tag reference. Maybe someone can help out.
> >2. I am still not entirely sure how they might help me. Surely it would
be
> >possible to write a JavaBean that accesses the database, but doing that
> >every time again is not the simplification I am looking for. Is there a
way
> >to reference database fields directly from the forms?
> >
> >
> >Basically, I would be very grateful for any kind of hint you can offer on
> >how to use xmlforms for this or on other ways of accomplishing the task
> >(maybe there would even be ways to take the database description and
> >generate a form from it?). I am quite stuck for ideas, but it seems a
> >standard job so I am sure many people have already found sufficient ways
to
> >do it.
> >
> >
> >Thanks in advance
> >Stefan
> >
> >
> >
> >
> >---------------------------------------------------------------------
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> >
> >
> >
> >
>
>
>
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