/**
* Compiles an array of set values into an SQL partial. Used for UPDATE.
*
* @param object $db Alt_Database instance
* @param array $values updated values
* @return string
*/
protected function _compile_set(Alt_Database $db, array $values)
{
$set = array();
foreach ($values as $group) {
// Split the set
list($column, $value) = $group;
// Quote the column name
$column = $db->quote_column($column);
if ((is_string($value) and array_key_exists($value, $this->_parameters)) === FALSE) {
// Quote the value, it is not a parameter
$value = $db->quote($value);
}
$set[$column] = $column . ' = ' . $value;
}
return implode(', ', $set);
}
