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jargon Namespace Reference
[Jargon, Jargon]

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Detailed Description

A KeyDef is a way to define the key columns in a table.

The KeyDef is generally used in conjunction with a TableDataSet. Essentially a KeyDef is what forms the WHERE clause for an UPDATE or DELETE.

In order to use the KeyDef, you simply use it like this: $kd = new KeyDef() $kd->addAttrib("key_column_a");

$tds = new TableDataSet($conn, "table", $kd); $tds->fetchRecords(); $rec = $tds->getRecord(0); $rec->setValue("column_name", "new value" ); $rec->save(); $tds->close();

In the above example, Record 0 is retrieved from the database table and the following update statement is generated:

 UPDATE table SET column_name=? WHERE key_column_a=?
 

See also TableDataSet::doUpdate()

TableDataSet::doDelete()

TableDataSet::refresh()

Author Jon S. Stevens <jon@latchkey.com> (Village)

Michael Aichler <aichle@mediacluster.de> (Jargon)

Hans Lellelid <hans@xmpl.org> (Jargon)

Version 

Revision

1.1

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This file is part of the Creole[php4] library.