Set database-engine specific properties for a field.
$field: A field description array, as specified in the schema documentation.
protected function processField($field) {
if (!isset($field['size'])) {
$field['size'] = 'normal';
}
// Set the correct database-engine specific datatype.
// In case one is already provided, force it to uppercase.
if (isset($field['mysql_type'])) {
$field['mysql_type'] = drupal_strtoupper($field['mysql_type']);
}
else {
$map = $this
->getFieldTypeMap();
$field['mysql_type'] = $map[$field['type'] . ':' . $field['size']];
}
if (isset($field['type']) && $field['type'] == 'serial') {
$field['auto_increment'] = TRUE;
}
return $field;
}