Introduce Exec interface and implementers (#1)

Reviewed-on: #1

dbconnection.go

@@ -22,6 +22,20 @@ func OpenConnection(driver string, dsn string) *DBConnection {
 	return &DBConnection{db: db, State: 1}
 }
 
+func (c *DBConnection) Exec(sql string) (sql.Result, error) {
+	// Force a real DB interaction
+	result, err := c.db.Exec(sql)
+	if err != nil {
+		log.LogFatalError("DB execution failed: %", err)
+		return nil, err
+	}
+	return result, nil
+}
+
+func (c *DBConnection) Prepare(sql string) (*sql.Stmt, error) {
+	return c.db.Prepare(sql)
+}
+
 func (c *DBConnection) Close() (bool, error) {
 	err := c.db.Close()
 	if err != nil {