private List<DbVersion> getXmlUpdates()
{
var res = new List<DbVersion>();
XmlDocument doc = new XmlDocument();
string xmlPath = Path.Combine(Config.SettingsPath, this.ComponentFullName);
xmlPath = HttpContext.Current.Request.MapPath(xmlPath = Path.Combine(xmlPath, "updates.xml"));
if (System.IO.File.Exists(xmlPath))
{
doc.Load(xmlPath);
XmlNodeList updateNodes = doc.SelectNodes("//updates/item");
foreach (XmlNode node in updateNodes)
{
var dbVersionItem = new DbVersion();
dbVersionItem.ComponentFullName = this.ComponentFullName;
dbVersionItem.VersionId = getIntValue(node, "id");
dbVersionItem.VersionDate = getDateValue(node, "date");
dbVersionItem.VersionDev = getStringValue(node, "dev");
dbVersionItem.VersionNotes = getStringValue(node, "notes");
dbVersionItem.SqlContent = node.InnerText;
if (dbVersionItem.VersionId > 0)
{
res.Add(dbVersionItem);
}
}
}
return res;
}
public bool ApplyPendingUpdates(out string logResult)
{
bool res = true;
DbProviderFactory myProv = Database.ProviderFactory;
DbTransaction myTrans = null;
DbConnection myConn = myProv.CreateConnection();
DbDataReader myRd = null;
DbCommand myCmd = myConn.CreateCommand();
string sSql = "";
string qryResult = "";
var fromVersion = new DbVersion();
var toVersion = new DbVersion();
logResult = "Updating " + this.ComponentFullName
+ " @from version: [[fromVersion]]"
+ " @to version: [[toVersion]]"
+ " @res: [[res]]"
+ " @summary: [[summary]]";
try
{
//retrieve sql
int updatesCount = this.UpdatesListPending.Count;
if (updatesCount > 0)
{
fromVersion = this.UpdatesListPending[0];
toVersion = this.UpdatesListPending[updatesCount - 1];
foreach (var item in this.UpdatesListPending)
{
sSql += item.SqlContent;
}
}
}
catch (Exception ex)
{
res = false;
qryResult = "err retrieving sql - " + ex.ToString();
}
if (res && !string.IsNullOrEmpty(sSql))
{
try
{
//execute sql with transation
myConn.ConnectionString = Database.ConnString;
myConn.Open();
myCmd.Connection = myConn;
myTrans = myConn.BeginTransaction();
myCmd.Transaction = myTrans;
sSql = Database.ParseSql(sSql);
qryResult = Database.ExecuteQuery(myRd, myCmd, sSql);
myTrans.Commit();
myTrans.Dispose();
myConn.Dispose();
res = true;
}
catch (Exception ex)
{
res = false;
myTrans.Rollback();
myTrans.Dispose();
myConn.Dispose();
qryResult = ex.ToString();
}
if (res)
{
//update last version log in local db
if (dbVersionMan.GetByKey(toVersion.VersionId).VersionId == 0)
dbVersionMan.Insert(toVersion);
else
dbVersionMan.Update(toVersion);
}
}
logResult = logResult
.Replace("[[fromVersion]]", fromVersion.VersionId.ToString())
.Replace("[[toVersion]]", toVersion.VersionId.ToString())
.Replace("[[res]]", res.ToString())
.Replace("[[summary]]", qryResult);
LogProvider.Write(fakeModule, logResult,
(res ? TracerItemType.Info : TracerItemType.Error));
return res;
}
