[rygel] media-export: Update docs

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit dcebaa2c049f28427784716745763e82fc91a34b
Author: Jens Georg <mail jensge org>
Date:   Sun Jul 25 13:25:18 2010 +0300

    media-export: Update docs

 .../media-export/rygel-media-export-database.vala  |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/media-export/rygel-media-export-database.vala b/src/plugins/media-export/rygel-media-export-database.vala
index 9ef71ce..9eb7120 100644
--- a/src/plugins/media-export/rygel-media-export-database.vala
+++ b/src/plugins/media-export/rygel-media-export-database.vala
@@ -165,6 +165,12 @@ internal class Rygel.MediaExport.Database : Object {
         }
     }
 
+    /**
+     * Execute a single SQL statement and throw an exception on error
+     *
+     * @param sql SQL statement to execute
+     * @throws DatabaseError if SQL statement fails
+     */
     private void single_statement (string sql) throws DatabaseError {
         if (this.db.exec (sql) != Sqlite.OK) {
             throw new DatabaseError.SQLITE_ERROR (db.errmsg ());