protected ViewstateContext GetFromDatabase(string query, object args)
{
SqlConnection conn = new SqlConnection(connectionstringProvider.Connectionstring);
ViewstateDatabaseRow r;
try
{
conn.Open();
r = conn.ExecuteMapperQuery<ViewstateDatabaseRow>(query, args).FirstOrDefault();
}
catch(Exception ex)
{
AnnotatedException e = new AnnotatedException("Error loading viewstate", ex);
e.AddAnnotation("Query", GetByGuidQuery);
e.AddAnnotations(args);
throw e;
}
finally
{
conn.Close();
}
if (r == null)
{
AnnotatedException e = new AnnotatedException("Unloading to load viewstate", new Exception("Empty (no data) in viewstate from database"));
e.AddAnnotations(args);
throw e;
}
return new ViewstateContext(r.ViewstateID, r.ViewData, r.Reference);
}
public void SetState(Guid viewStateID, int state)
{
SqlConnection conn = new SqlConnection( connectionstringProvider.Connectionstring );
var args = new
{
ViewStateID = viewStateID,
State=state
};
try
{
conn.Open();
conn.ExecuteMapperCommand(SetStateQuery, args);
}
catch(Exception ex)
{
AnnotatedException e = new AnnotatedException("Error saving state for viewstate", ex);
e.AddAnnotation("Query", SetStateQuery);
e.AddAnnotations(args);
throw e;
}
finally
{
conn.Close();
}
}
protected void DeleteViewstate(string query, object args)
{
SqlConnection conn = new SqlConnection( connectionstringProvider.Connectionstring );
try
{
conn.Open();
conn.ExecuteMapperCommand(query, args);
}
catch(Exception ex)
{
AnnotatedException e = new AnnotatedException("Could not delete viewstate from database", ex);
e.AddAnnotation("Query", query);
e.AddAnnotations(args);
throw e;
}
finally
{
conn.Close();
}
}
public void SaveState(ViewstateContext ctx, bool useGuid = true)
{
if ( !useGuid && string.IsNullOrWhiteSpace( ctx.Reference ) )
useGuid = true;
string query = useGuid ? SaveStateByGuidQuery : SaveStateByReferenceQuery;
var args = ctx.GetDatebaseRow();
SqlConnection conn = new SqlConnection(connectionstringProvider.Connectionstring);
try
{
conn.Open();
conn.ExecuteMapperCommand(query, args);
}
catch(Exception ex)
{
AnnotatedException e = new AnnotatedException("Error saving viewstate", ex);
e.AddAnnotation("UseGuid", useGuid);
e.AddAnnotation("Query", query);
e.AddAnnotations(args);
throw e;
}
finally
{
conn.Close();
}
}