[libgda] Updated sample/vala/SampleDataObject.vala to GdaData.Object API changes

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 79bcd1ba01e09759fde6caca7694c93606b0df86
Author: Daniel Espinosa <despinosa src gnome org>
Date:   Mon Jan 2 16:28:08 2012 -0600

    Updated sample/vala/SampleDataObject.vala to GdaData.Object API changes

 samples/vala/SampleDataObject.vala |   21 ++++++++++++++++++++-
 1 files changed, 20 insertions(+), 1 deletions(-)
---
diff --git a/samples/vala/SampleDataObject.vala b/samples/vala/SampleDataObject.vala
index 9417892..a75e967 100644
--- a/samples/vala/SampleDataObject.vala
+++ b/samples/vala/SampleDataObject.vala
@@ -22,7 +22,7 @@ using GdaData;
 
 namespace Sample {
 
-	class DbRecord : GdaData.Object {
+	class DbRecord : GdaData.Object<DbRecord> {
 		private static string dbtable = "user";
 		
 		/**
@@ -66,6 +66,25 @@ namespace Sample {
 			}
 		}
 		
+		public override DbRecord append ()
+			throws ObjectError
+		{
+			var sql = new SqlBuilder (SqlStatementType.INSERT);
+			sql.set_table (this.table);
+			sql.add_field_value_as_gvalue ("functions", functions);
+			sql.add_field_value_as_gvalue ("name", name);
+			Set last_inserted;
+			var i = this.connection.statement_execute_non_select (sql.get_statement (), null, out last_inserted);
+			if (i != 1) {
+				throw new GdaData.ObjectError.APPEND ("Have been added more or less rows than expected");
+			}
+			var id = last_inserted.get_holder_value ("0");
+			var n = new DbRecord ();
+			n.connection = this.connection;
+			n.set_id ("id", id);
+			return n;
+		}
+		
 		/**
 		 * This function is a wrapper to set the id field
 		 * and id value used to retrieve a record from the