From 62e38e29e539b1eb33b2c3cc79415d0beded57d8 Mon Sep 17 00:00:00 2001
From: Dave Collins <davec@conformal.com>
Date: Sun, 15 Sep 2013 15:18:46 -0500
Subject: [PATCH] Add a new function named SupportedDBs.

This function allows the callers to programatically ascertain which
database backend drivers are registered and therefore supported.
---
 db.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/db.go b/db.go
index 808417ef..4c830df0 100644
--- a/db.go
+++ b/db.go
@@ -206,3 +206,13 @@ func OpenDB(dbtype string, argstr string) (pbdb Db, err error) {
 	}
 	return nil, DbUnknownType
 }
+
+// SupportedDBs returns a slice of strings that represent the database drivers
+// that have been registered and are therefore supported.
+func SupportedDBs() []string {
+	var supportedDBs []string
+	for _, drv := range driverList {
+		supportedDBs = append(supportedDBs, drv.DbType)
+	}
+	return supportedDBs
+}