/**
* Resolve semantic mapping for fields in criteria.
*
* @param DB_Table $table
* @param array $criteria
* @param boolean $keyvalue Assume key/value pairs
*/
protected function resolveCriteria(DB_Table $table, &$criteria, $keyvalue = false)
{
if (!isset($criteria)) {
return;
}
if (!$keyvalue && (!is_array($criteria) || !is_string(key($criteria)))) {
$pk = $table->getPrimaryKey();
if (empty($pk)) {
throw new Exception("Unable to select record for {$table}: Unable to determine a WHERE statement. The table might have no primary key.");
}
$criteria = (array) $criteria;
if (count($pk) != count($criteria)) {
throw new Exception("Unable to select record for {$table}: " . count($criteria) . " values specified, while primary key from table consists of " . count($pk) . " fields (" . implode(', ', $pk) . ").");
}
$criteria = array_combine((array) $pk->getName(DB::FIELDNAME_TABLE | DB::QUOTE), $criteria);
} else {
foreach (array_keys($criteria) as $i => $field) {
if ($field[0] === '#') {
$keys[$i] = (string) $table->{$field};
}
}
// Most cases this is not needed, so merge afterwards
if (isset($keys)) {
$keys = +array_keys($criteria);
sort($keys);
$criteria = array_combine($keys, $criteria);
}
}
}
