//---------------------------------------------------------------------
//---------------------------------------------------------------------
// CHANGED: CR39 (Split and merge complete messages)
// Return true or false success so the main class knows
// whether to notify the user following the completion of
// the merge.
//
private bool PerformLogicalMerge(bool physicallyMerge)
{
bool success = true;
try
{
if (_viewModelMain.IncidsSelectedMapCount <= 0)
{
return(false);
}
_mergeFeaturesWindow = new WindowMergeFeatures();
_mergeFeaturesWindow.Owner = App.Current.MainWindow;
_mergeFeaturesWindow.WindowStartupLocation = WindowStartupLocation.CenterOwner;
_mergeFeaturesWindow.MaxHeight = App.Current.MainWindow.ActualHeight;
HluDataSet.incidDataTable selectTable = new HluDataSet.incidDataTable();
_viewModelMain.HluTableAdapterManager.incidTableAdapter.Fill(selectTable,
ViewModelWindowMainHelpers.IncidSelectionToWhereClause(ViewModelWindowMain.IncidPageSize,
_viewModelMain.IncidTable.incidColumn.Ordinal, _viewModelMain.IncidTable, _viewModelMain.IncidsSelectedMap));
HluDataSet.incid_mm_polygonsDataTable polygons = new HluDataSet.incid_mm_polygonsDataTable();
_viewModelMain.GetIncidMMPolygonRows(ViewModelWindowMainHelpers.GisSelectionToWhereClause(
_viewModelMain.GisSelection.Select(), _viewModelMain.GisIDColumnOrdinals,
ViewModelWindowMain.IncidPageSize, polygons), ref polygons);
_mergeFeaturesViewModelLogical = new ViewModelMergeFeatures <HluDataSet.incidDataTable,
HluDataSet.incidRow>(selectTable, _viewModelMain.GisIDColumnOrdinals,
_viewModelMain.IncidTable.incidColumn.Ordinal, polygons.Select(r => r).ToArray(),
_viewModelMain.GISApplication);
_mergeFeaturesViewModelLogical.DisplayName = "Select INCID To Keep";
_mergeFeaturesViewModelLogical.RequestClose += new ViewModelMergeFeatures <HluDataSet.incidDataTable,
HluDataSet.incidRow> .RequestCloseEventHandler(_mergeFeaturesViewModelLogical_RequestClose);
_mergeFeaturesWindow.DataContext = _mergeFeaturesViewModelLogical;
_mergeResultFeatureIndex = -1;
_mergeFeaturesWindow.ShowDialog();
if (_mergeResultFeatureIndex == -1)
{
return(false);
}
_viewModelMain.ChangeCursor(Cursors.Wait, "Processing ...");
_viewModelMain.DataBase.BeginTransaction(true, IsolationLevel.ReadCommitted);
try
{
string keepIncid = selectTable[_mergeResultFeatureIndex].incid;
// assign selected incid to selected features except keepIncid
DataTable historyTable = _viewModelMain.GISApplication.MergeFeaturesLogically(
keepIncid, _viewModelMain.HistoryColumns);
if ((historyTable == null) || (historyTable.Rows.Count == 0))
{
throw new Exception("Failed to update GIS layer.");
}
// assign selected incid and new toid_fragment_id to selected features except keepIncid in DB shadow copy
string toidFragmentFormat = String.Format("D{0}",
_viewModelMain.HluDataset.incid_mm_polygons.toid_fragment_idColumn.MaxLength);
List <KeyValuePair <int, object> > updateFields = new List <KeyValuePair <int, object> >();
var keepPolygon = polygons.FirstOrDefault(r => r.incid == keepIncid);
if (keepPolygon != null)
{
updateFields = (from c in polygons.Columns.Cast <DataColumn>()
where (c.Ordinal != _viewModelMain.HluDataset.incid_mm_polygons.incidColumn.Ordinal) &&
(c.Ordinal != _viewModelMain.HluDataset.incid_mm_polygons.toidColumn.Ordinal) &&
(c.Ordinal != _viewModelMain.HluDataset.incid_mm_polygons.toid_fragment_idColumn.Ordinal) &&
(c.Ordinal != _viewModelMain.HluDataset.incid_mm_polygons.shape_lengthColumn.Ordinal) &&
(c.Ordinal != _viewModelMain.HluDataset.incid_mm_polygons.shape_areaColumn.Ordinal)
select new KeyValuePair <int, object>(c.Ordinal, keepPolygon[c.Ordinal])).ToList();
}
var updatePolygons = from r in polygons
where r.incid != keepIncid
orderby r.toid, r.toid_fragment_id
select r;
// update shadow DB copy of GIS layer
foreach (HluDataSet.incid_mm_polygonsRow r in updatePolygons)
{
r.incid = keepIncid;
for (int i = 0; i < updateFields.Count; i++)
{
r[updateFields[i].Key] = updateFields[i].Value;
}
}
if (_viewModelMain.HluTableAdapterManager.incid_mm_polygonsTableAdapter.Update(polygons) == -1)
{
throw new Exception(String.Format("Failed to update {0} table.", _viewModelMain.HluDataset.incid_mm_polygons.TableName));
}
// insert history rows (fixed value keepIncid)
Dictionary <int, string> fixedValues = new Dictionary <int, string>();
fixedValues.Add(_viewModelMain.HluDataset.history.incidColumn.Ordinal, keepIncid);
ViewModelWindowMainHistory vmHist = new ViewModelWindowMainHistory(_viewModelMain);
vmHist.HistoryWrite(fixedValues, historyTable, ViewModelWindowMain.Operations.LogicalMerge);
// count incid records no longer in use
List <string> deleteIncids = new List <string>();
IDataReader delReader = _viewModelMain.DataBase.ExecuteReader(String.Format(
"SELECT {0} FROM {1} WHERE {0} IN ({2}) GROUP BY {0} HAVING COUNT(*) = 0",
_viewModelMain.DataBase.QuoteIdentifier(_viewModelMain.IncidTable.incidColumn.ColumnName),
_viewModelMain.DataBase.QualifyTableName(_viewModelMain.IncidTable.TableName),
selectTable.Aggregate(new StringBuilder(), (sb, r) => sb.Append("," +
_viewModelMain.DataBase.QuoteValue(r.incid))).Remove(0, 1)),
_viewModelMain.DataBase.Connection.ConnectionTimeout, CommandType.Text);
if (delReader == null)
{
throw new Exception("Error reading incid database table.");
}
while (delReader.Read())
{
deleteIncids.Add(delReader.GetString(0));
}
delReader.Close();
// delete any incid records no longer in use
if (deleteIncids.Count > 0)
{
int numAffected = _viewModelMain.DataBase.ExecuteNonQuery(String.Format(
"DELETE FROM {0} WHERE {1} IN ({2})",
_viewModelMain.DataBase.QualifyTableName(_viewModelMain.HluDataset.incid.TableName),
_viewModelMain.DataBase.QuoteValue(_viewModelMain.HluDataset.incid.incidColumn.ColumnName),
String.Join(",", deleteIncids.Select(i => _viewModelMain.DataBase.QuoteValue(i)).ToArray())),
_viewModelMain.DataBase.Connection.ConnectionTimeout, CommandType.Text);
if (numAffected > 0)
{
_viewModelMain.IncidRowCount(true);
}
}
_viewModelMain.ViewModelUpdate.UpdateIncidModifiedColumns(keepIncid);
if (physicallyMerge && (MessageBox.Show("Perform physical merge as well?", "HLU: Physical Merge",
MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.No) == MessageBoxResult.Yes))
{
// restore the selection
_viewModelMain.GisSelection.Clear();
foreach (HluDataSet.incid_mm_polygonsRow r in polygons)
{
DataRow newRow = _viewModelMain.GisSelection.NewRow();
for (int i = 0; i < _viewModelMain.GisIDColumnOrdinals.Length; i++)
{
newRow[i] = r[_viewModelMain.GisIDColumnOrdinals[i]];
}
_viewModelMain.GisSelection.Rows.Add(newRow);
}
PerformPhysicalMerge();
}
else
{
_viewModelMain.DataBase.CommitTransaction();
_viewModelMain.HluDataset.AcceptChanges();
// Re-count the incid records in the database.
_viewModelMain.IncidRowCount(true);
// Reset the incid and map selections but don't move
// to the first incid in the database.
_viewModelMain.ClearFilter(false);
// Synch with the GIS selection.
//---------------------------------------------------------------------
// FIX: 027 Force refill of Incid table after split/merge
// Force the Incid table to be refilled because it has been
// updated directly in the database rather than via the
// local copy.
_viewModelMain.RefillIncidTable = true;
//---------------------------------------------------------------------
_viewModelMain.ReadMapSelection(true);
}
}
catch
{
_viewModelMain.DataBase.RollbackTransaction();
throw;
}
}
catch (Exception ex)
{
success = false;
MessageBox.Show("Merge operation failed. The error message returned was:\n\n" +
ex.Message, "HLU Merge Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
finally { _viewModelMain.ChangeCursor(Cursors.Arrow, null); }
return(success);
}
/// <summary>
/// Physically split features on the GIS layer.
/// </summary>
private bool PerformPhysicalSplit()
{
bool success = true;
_viewModelMain.DataBase.BeginTransaction(true, IsolationLevel.ReadCommitted);
try
{
// find next available toid_fragment_id for selected toid
string lastToidFragmentID = _viewModelMain.RecIDs.MaxToidFragmentId(_viewModelMain.ToidsSelectedMap.ElementAt(0));
// get a filter from the GIS selection
List <List <SqlFilterCondition> > featuresFilter = ViewModelWindowMainHelpers.GisSelectionToWhereClause(
_viewModelMain.GisSelection.AsEnumerable().Skip(1).ToArray(), _viewModelMain.GisIDColumnOrdinals,
ViewModelWindowMain.IncidPageSize, _viewModelMain.HluDataset.incid_mm_polygons);
if (featuresFilter.Count != 1)
{
throw new Exception("Error finding features in database.");
}
// update records in GIS and collect new features resulting from split
DataTable newFeatures = _viewModelMain.GISApplication.SplitFeature(lastToidFragmentID, featuresFilter[0],
_viewModelMain.HluDataset.incid_mm_polygons.Columns.Cast <DataColumn>().Where(c =>
c.ColumnName != _viewModelMain.HluDataset.incid_mm_polygons.shape_lengthColumn.ColumnName &&
c.ColumnName != _viewModelMain.HluDataset.incid_mm_polygons.shape_areaColumn.ColumnName).ToArray());
if ((newFeatures == null) || (newFeatures.Rows.Count < 2))
{
throw new Exception("Failed to update GIS layer.");
}
ViewModelWindowMainHistory vmHist = new ViewModelWindowMainHistory(_viewModelMain);
vmHist.HistoryRenameGeometryPropertyColumns(
_viewModelMain.HluDataset.incid_mm_polygons.shape_lengthColumn.ColumnName,
_viewModelMain.HluDataset.incid_mm_polygons.shape_areaColumn.ColumnName, ref newFeatures);
// get a where clause for the original split feature
List <List <SqlFilterCondition> > originalFeatureWhereClause = ViewModelWindowMainHelpers.GisSelectionToWhereClause(
_viewModelMain.GisSelection.AsEnumerable().Take(1).ToArray(), _viewModelMain.GisIDColumnOrdinals,
ViewModelWindowMain.IncidPageSize, _viewModelMain.HluDataset.incid_mm_polygons);
if (originalFeatureWhereClause.Count != 1)
{
throw new Exception("Error finding features in database.");
}
// get the attributes of the split feature
HluDataSet.incid_mm_polygonsDataTable updTable = new HluDataSet.incid_mm_polygonsDataTable();
_viewModelMain.GetIncidMMPolygonRows(originalFeatureWhereClause, ref updTable);
if ((updTable == null) || (updTable.Rows.Count != 1))
{
throw new Exception("Failed to fetch incid_mm_polygon rows.");
}
// insert attributes of original split feature into history
DataTable history = updTable.Copy();
history.Columns[updTable.shape_lengthColumn.ColumnName].ColumnName = ViewModelWindowMain.HistoryGeometry1ColumnName;
history.Columns[updTable.shape_areaColumn.ColumnName].ColumnName = ViewModelWindowMain.HistoryGeometry2ColumnName;
string[] historyColNames = (new string[] { ViewModelWindowMain.HistoryGeometry1ColumnName, ViewModelWindowMain.HistoryGeometry2ColumnName }
.Concat(_viewModelMain.HistoryColumns.Select(c => c.ColumnName)).ToArray());
DataColumn[] delCols = history.Columns.Cast <DataColumn>().Where(c => !historyColNames.Contains(c.ColumnName)).ToArray();
foreach (DataColumn c in delCols)
{
history.Columns.Remove(c);
}
vmHist.HistoryWrite(null, history, ViewModelWindowMain.Operations.PhysicalSplit);
// update the original row
if (_viewModelMain.DataBase.ExecuteNonQuery(String.Format("UPDATE {0} SET {1} WHERE {2}",
_viewModelMain.DataBase.QualifyTableName(_viewModelMain.HluDataset.incid_mm_polygons.TableName),
String.Join(",", newFeatures.Rows[0].ItemArray.Select((i, index) =>
new
{
ColumnName = newFeatures.Columns[index].ColumnName,
value = i
})
.Where(a => _viewModelMain.GisIDColumns.Count(c => c.ColumnName == a.ColumnName) == 0)
.Select(a => String.Format("{0} = {1}", _viewModelMain.DataBase.QuoteIdentifier(a.ColumnName),
_viewModelMain.DataBase.QuoteValue(a.value))).ToArray()),
_viewModelMain.DataBase.WhereClause(false, true, true, originalFeatureWhereClause[0])),
_viewModelMain.DataBase.Connection.ConnectionTimeout, CommandType.Text) == -1)
{
throw new Exception("Failed to update original row in database copy of GIS layer.");
}
// build an insert statement for DB shadow copy of GIS layer
string insertStatement = String.Format("INSERT INTO {0} ({1}) VALUES (",
_viewModelMain.DataBase.QualifyTableName(_viewModelMain.HluDataset.incid_mm_polygons.TableName),
String.Join(",", newFeatures.Columns.Cast <DataColumn>().Select(c =>
_viewModelMain.DataBase.QuoteIdentifier(c.ColumnName)).ToArray())) + "{0})";
int toidFragID = Int32.Parse(lastToidFragmentID);
string numFormat = String.Format("D{0}", updTable.toid_fragment_idColumn.MaxLength);
// insert new features returned from GIS into DB shadow copy of GIS layer
for (int i = 1; i < newFeatures.Rows.Count; i++)
{
if (_viewModelMain.DataBase.ExecuteNonQuery(String.Format(insertStatement, String.Join(",",
newFeatures.Rows[i].ItemArray.Select((item, index) =>
_viewModelMain.DataBase.QuoteValue(newFeatures.Columns[index].ColumnName ==
updTable.toid_fragment_idColumn.ColumnName ?
(toidFragID + i).ToString(numFormat) : item)).ToArray())),
_viewModelMain.DataBase.Connection.ConnectionTimeout, CommandType.Text) == -1)
{
throw new Exception("Failed to insert new rows into database copy of GIS layer.");
}
}
_viewModelMain.ViewModelUpdate.UpdateIncidModifiedColumns(_viewModelMain.IncidsSelectedMap.ElementAt(0));
_viewModelMain.DataBase.CommitTransaction();
_viewModelMain.HluDataset.AcceptChanges();
}
catch (Exception ex)
{
_viewModelMain.DataBase.RollbackTransaction();
success = false;
MessageBox.Show("Split operation failed. The error message returned was:\n\n" +
ex.Message, "HLU Split Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
if (success)
{
_viewModelMain.IncidRowCount(true);
_viewModelMain.ClearFilter();
_viewModelMain.ReadMapSelection(true);
}
}
return(success);
}
