I hacked this into my Object.vm for OM class generation - in the foreach
loop for columns
#if($cjtype == "String")
/**
* Get the $cfc max size -
* This is the maximum length constraint on the DB Column.
*
* @return int
*/
public int get${cfc}Max()
{
return $col.Size;
}
#end
/**
* Get the $cfc required setting
* This is the NOT NULL constraint on the DB Column.
*
* @return boolean
*/
public boolean get${cfc}Required()
{
return $col.isNotNull();
}
Then each column has an getColRequired() method and if it is a VARCHAR
column it has a getColMax() method
and I can do this:
<input name="title" maxlength="$entry.TitleMax" value="$entry.Title">
or some such... and can also use some javascript in conjunction with the
$entry.TitleRequired return
It also makes validating stuff easier on the server side.
Torque Rocks.
-----Original Message-----
From: James Bullen [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 01, 2002 3:23 PM
To: 'Turbine Users List'
Subject: accessing column metadata in templates
i want to use column metadata in my templates. a simple case is setting
the maxlength attribute in an input element in a form.
eg.
in the sample app schema:
<column name="TITLE" size="255" type="VARCHAR"/>
defines the Title column for the Rdf object and says it has a size of
255. it seems reasonable to want to access that metadata in a form to
set maxlength. i couldn't see any examples of this, nor any discussion
in the archive. you can use intake to define a maxlength but this is
done server-side (requiring a roundtrip to enforce), and duplicates the
definition.
so i want another approach. i tried putting a TableMap in the context in
Form.java
TableMap tabmap = RdfPeer.getTableMap();
context.put("tabmap", tabmap);
(which required making getTableMap public - the first hint i was heading
in the wrong direction ;)
then, in theory, in Form.vm i could say something like:
#set ( $col = $tabmap.getColumn("TITLE") )
<input name="title" maxlength="$col.getSize()" value="$entry.Title">
unfortunately getSize() always returns 0 ... i haven't investigated this
further because i feel like i'm off track.
does anyone have a good way to do this? it feels like the sort of ground
that should be well-trodden ...
any help appreciated.
cheers,
james
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