Implements reverse engineering to generate SQL database from XMLs.
$file :
$primary :
$table :
$fields :
__construct()
getFile()
getTable()
getPrimary()
getFields()
getUniques()
getRequireds()
recovery( $formData = FALSE)
execute( $itemId)
delete( $itemId, $permanent = TRUE)
getField( $group = FALSE)
getGroup()
toSqlScript( $field)