private string GenerateFilter(FdoFeature feat)
{
FdoFeatureTable table = feat.Table;
if (table.PrimaryKey.Length > 0)
{
List <string> filters = new List <string>();
foreach (DataColumn col in table.PrimaryKey)
{
DataType dt = ExpressUtility.GetFdoDataTypeFromClrType(col.DataType);
string f = string.Empty;
if (dt == DataType.DataType_DateTime || dt == DataType.DataType_String)
{
f = col.ColumnName + " = '" + feat[col] + "'";
}
else
{
f = col.ColumnName + " = " + feat[col];
}
filters.Add(f);
}
return("(" + string.Join(" AND ", filters.ToArray()) + ")");
}
return(null);
}
public FdoUpdateScaffoldPresenter(IFdoUpdateView view, FdoFeature feat, FdoConnection conn, string filter)
{
_view = view;
_conn = conn;
_className = feat.Table.TableName;
_view.Title = ICSharpCode.Core.ResourceService.GetString("TITLE_UPDATE_FEATURE");
_view.UpdateFilter = filter;
_filter = filter;
_feature = feat;
}
internal void DoUpdate(FdoFeature feat)
{
FeatureQueryOptions query = null;
switch (_view.SelectedQueryMode)
{
case QueryMode.Aggregate:
{
query = (_view.QueryView as IFdoAggregateQueryView).QueryObject;
}
break;
case QueryMode.Standard:
{
query = (_view.QueryView as IFdoStandardQueryView).QueryObject;
}
break;
}
if (query != null)
{
string filter = GenerateFilter(feat);
if (string.IsNullOrEmpty(filter))
{
_view.ShowError("Unable to generate an update filter. Possibly this result set has no unique identifiers or this result set was produced from a SQL query");
return;
}
using (FdoFeatureService service = _connection.CreateFeatureService())
{
//Update is based on a very simple premise, the filter should produce the
//same number of affected results when selecting and updating.
//
//In our case, the filter should affect exactly one result when selecting and updating.
long count = service.GetFeatureCount(feat.Table.TableName, filter, true);
if (1 == count)
{
Workbench wb = Workbench.Instance;
FdoUpdateScaffold ctl = new FdoUpdateScaffold(feat, _connection, filter);
wb.ShowContent(ctl, ViewRegion.Dialog);
}
}
}
else
{
_view.ShowError("Could not determine the feature class name from the result set");
}
}
private void updateThisFeatureToolStripMenuItem_Click(object sender, EventArgs e)
{
if (grdResults.SelectedRows.Count == 1)
{
FdoFeature feat = (FdoFeature)((grdResults.SelectedRows[0].DataBoundItem as DataRowView).Row);
_presenter.DoUpdate(feat);
}
else if (grdResults.SelectedRows.Count > 1)
{
List <FdoFeature> features = new List <FdoFeature>();
foreach (DataGridViewRow row in grdResults.SelectedRows)
{
features.Add((FdoFeature)(row.DataBoundItem as DataRowView).Row);
}
string filter = _presenter.GenerateFilter(features.ToArray());
FdoBulkUpdateCtl ctl = new FdoBulkUpdateCtl(_presenter.Connection, _presenter.SelectedClassName, filter);
Workbench.Instance.ShowContent(ctl, ViewRegion.Dialog);
}
}
/// <summary>
/// Creates a new <see cref="FdoRow"/> from a <see cref="FdoFeature"/> instance
/// </summary>
/// <param name="feat">The <see cref="FdoFeature"/> instance</param>
/// <returns>A new <see cref="FdoRow"/> instance</returns>
public static FdoRow FromFeatureRow(FdoFeature feat)
{
if (feat.Table == null)
{
throw new InvalidOperationException(ResourceUtil.GetString("ERR_FEATURE_ROW_HAS_NO_PARENT_TABLE"));
}
FdoRow row = new FdoRow();
foreach (DataColumn dc in feat.Table.Columns)
{
if (feat[dc] != null && feat[dc] != DBNull.Value)
{
FdoGeometry geom = feat[dc] as FdoGeometry;
if (geom != null)
{
if (feat.Table.GeometryColumn == dc.ColumnName)
{
row.AddGeometry(dc.ColumnName, geom.InternalInstance);
row.DefaultGeometryProperty = dc.ColumnName;
}
else
{
row.AddGeometry(dc.ColumnName, geom.InternalInstance);
}
}
else
{
row[dc.ColumnName] = feat[dc];
}
if (dc.ReadOnly)
{
row.MarkReadOnly(dc.ColumnName);
}
}
}
return(row);
}
private void deleteThisFeatureToolStripMenuItem_Click(object sender, EventArgs e)
{
if (grdResults.SelectedRows.Count == 1)
{
if (this.Confirm("Delete Feature", "Are you sure you want to delete this feature?"))
{
FdoFeature feat = (FdoFeature)((grdResults.SelectedRows[0].DataBoundItem as DataRowView).Row);
_presenter.DoDelete(feat);
}
}
else if (grdResults.SelectedRows.Count > 1)
{
if (this.Confirm("Delete Feature", "Are you sure you want to delete these features?"))
{
List <FdoFeature> features = new List <FdoFeature>();
foreach (DataGridViewRow row in grdResults.SelectedRows)
{
features.Add((FdoFeature)(row.DataBoundItem as DataRowView).Row);
}
_presenter.DoDelete(features.ToArray());
}
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="feature"></param>
/// <param name="action"></param>
public FdoFeatureChangeEventArgs(FdoFeature feature, DataRowAction action)
{
_feature = feature;
_action = action;
}
public FdoUpdateScaffold(FdoFeature feature, FdoConnection conn, string filter)
: this()
{
_presenter = new FdoUpdateScaffoldPresenter(this, feature, conn, filter);
}
internal void DoDelete(FdoFeature feat)
{
this.DeleteFeatures(feat);
}
private void DeleteFeatures(FdoFeature feat)
{
DeleteFeatures(feat.Table, new FdoFeature[] { feat });
}
void DoWork(object sender, DoWorkEventArgs e)
{
IFdoReader reader = null;
using (FdoFeatureService service = _connection.CreateFeatureService())
{
try
{
if (e.Argument is FeatureAggregateOptions)
{
reader = service.SelectAggregates((FeatureAggregateOptions)e.Argument);
}
else if (e.Argument is StandardQuery)
{
var stdArg = (e.Argument as StandardQuery);
reader = service.SelectFeatures(stdArg.query, stdArg.Limit, stdArg.UseExtendedSelect);
}
else if (e.Argument is string)
{
reader = service.ExecuteSQLQuery(e.Argument.ToString());
}
//Init the data grid view
FdoFeatureTable table = new FdoFeatureTable();
table.RequestSpatialContext += delegate(object o, string name)
{
SpatialContextInfo c = service.GetSpatialContext(name);
if (c != null)
{
table.AddSpatialContext(c);
}
};
ClassDefinition clsDef = null;
bool hasJoins = false;
if (e.Argument is StandardQuery)
{
var qry = ((StandardQuery)e.Argument).query;
clsDef = service.GetClassByName(qry.ClassName); //TODO: Should really qualify this, but our input parameters do not specify a schema
hasJoins = qry.JoinCriteria.Count > 0;
}
table.InitTable(reader, clsDef, hasJoins);
// need to store object class defn outside loop
ClassDefinition classDefObject = null;
ClassDefinition classDefAssoc = null;
while (reader.ReadNext() && !_queryWorker.CancellationPending)
{
//Pass processed feature to data grid view
FdoFeature feat = table.NewRow();
for (int i = 0; i < reader.FieldCount; i++)
{
string name = reader.GetName(i);
if (!reader.IsNull(name))
{
FdoPropertyType pt = reader.GetFdoPropertyType(name);
switch (pt)
{
case FdoPropertyType.Association:
// TODO: how to handle for non-StandardQuery
if (e.Argument is StandardQuery)
{
// because the original code used an iterator over the reader.FieldCount
// it is a bit of a hack to get another definition of the class and check
// we are at the right property with a name comparison
// TODO: code review to see if this can be implemented better
FdoFeatureReader readerFeature = (FdoFeatureReader)reader;
ClassDefinition classDef = readerFeature.GetClassDefinition();
foreach (PropertyDefinition propertyDef in classDef.Properties)
{
// only looking for the right association
if ((PropertyType.PropertyType_AssociationProperty == propertyDef.PropertyType) &&
(propertyDef.Name.Equals(name)))
{
AssociationPropertyDefinition assocProp = (AssociationPropertyDefinition)propertyDef;
ClassDefinition classAssoc = assocProp.AssociatedClass;
// get a reader from the association - nice!
IFeatureReader readerAssoc = readerFeature.GetFeatureObject(name);
if ((null != readerAssoc) && (readerAssoc.ReadNext()))
{
// TODO: this should be an iterative function
// the simple reassignment on each instance fails
// (classDefObject.Properties is always zero after first record)
// so have set classDefObject higher-up and re-use/
// - problem will occur if more than one association
// ClassDefinition classDefObject = readerObject.GetClassDefinition();
if (null == classDefAssoc)
{
classDefAssoc = readerAssoc.GetClassDefinition();
}
foreach (PropertyDefinition propertyDefAssoc in classDefAssoc.Properties)
{
String nameAssoc = propertyDefAssoc.Name;
// TODO: only "data" type handled at present
if (PropertyType.PropertyType_DataProperty == propertyDefAssoc.PropertyType)
{
DataPropertyDefinition datapropertyDefAssoc = (DataPropertyDefinition)propertyDefAssoc;
String szFullName = name + "." + nameAssoc;
DataType ptAssoc = datapropertyDefAssoc.DataType;
// TODO: handle all types
switch (ptAssoc)
{
case DataType.DataType_String:
feat[szFullName] = readerAssoc.GetString(nameAssoc);
break;
case DataType.DataType_Int16:
feat[szFullName] = readerAssoc.GetInt16(nameAssoc);
break;
case DataType.DataType_Int32:
feat[szFullName] = readerAssoc.GetInt32(nameAssoc);
break;
case DataType.DataType_Int64:
feat[szFullName] = readerAssoc.GetInt64(nameAssoc);
break;
}
}
}
readerAssoc.Close();
}
}
}
}
break;
case FdoPropertyType.BLOB:
feat[name] = reader.GetLOB(name).Data;
break;
case FdoPropertyType.Boolean:
feat[name] = reader.GetBoolean(name);
break;
case FdoPropertyType.Byte:
feat[name] = reader.GetByte(name);
break;
case FdoPropertyType.CLOB:
feat[name] = reader.GetLOB(name).Data;
break;
case FdoPropertyType.DateTime:
{
try
{
feat[name] = reader.GetDateTime(name);
}
catch //Unrepresentable dates
{
feat[name] = DBNull.Value;
}
}
break;
case FdoPropertyType.Decimal: //We should probably remove this as FDO coerces decimals to doubles (otherwise why is there not a GetDecimal() method in FdoIReader?)
{
double val = reader.GetDouble(name);
if (Double.IsNaN(val))
{
feat[name] = DBNull.Value;
}
else
{
feat[name] = Convert.ToDecimal(val);
}
}
break;
case FdoPropertyType.Double:
feat[name] = reader.GetDouble(name);
break;
case FdoPropertyType.Geometry:
{
try
{
byte[] fgf = reader.GetGeometry(name);
OSGeo.FDO.Geometry.IGeometry geom = service.GeometryFactory.CreateGeometryFromFgf(fgf);
var fg = new FdoGeometry(geom);
//OGR geometry trap
using (var env = fg.Envelope) { }
feat[name] = fg;
}
catch
{
feat[name] = DBNull.Value;
}
}
break;
case FdoPropertyType.Int16:
feat[name] = reader.GetInt16(name);
break;
case FdoPropertyType.Int32:
feat[name] = reader.GetInt32(name);
break;
case FdoPropertyType.Int64:
feat[name] = reader.GetInt64(name);
break;
case FdoPropertyType.Object:
// TODO: how to handle for non-StandardQuery
if (e.Argument is StandardQuery)
{
// because the original code used an iterator over the reader.FieldCount
// it is a bit of a hack to get another definition of the class and check
// we are at the right property with a name comparison
// TODO: code review to see if this can be implemented better
FdoFeatureReader readerFeature = (FdoFeatureReader)reader;
ClassDefinition classDef = readerFeature.GetClassDefinition();
foreach (PropertyDefinition propertyDef in classDef.Properties)
{
// only looking for the right object
if ((PropertyType.PropertyType_ObjectProperty == propertyDef.PropertyType) &&
(propertyDef.Name.Equals(name)))
{
ObjectPropertyDefinition assocProp = (ObjectPropertyDefinition)propertyDef;
ClassDefinition classAssoc = assocProp.Class;
// get a reader from the object - nice!
IFeatureReader readerObject = readerFeature.GetFeatureObject(name);
if ((null != readerObject) && (readerObject.ReadNext()))
{
// TODO: this should be an iterative function
// the simple reassignment on each instance fails
// (classDefObject.Properties is always zero after first record)
// so have set classDefObject higher-up and re-use/
// - problem will occur if more than one association
// ClassDefinition classDefObject = readerObject.GetClassDefinition();
if (null == classDefObject)
{
classDefObject = readerObject.GetClassDefinition();
}
foreach (PropertyDefinition propertyDefObject in classDefObject.Properties)
{
String nameObject = propertyDefObject.Name;
// TODO: only "data" type handled at present
if (PropertyType.PropertyType_DataProperty == propertyDefObject.PropertyType)
{
DataPropertyDefinition datapropertyDefObject = (DataPropertyDefinition)propertyDefObject;
String szFullName = name + "." + nameObject;
DataType ptAssoc = datapropertyDefObject.DataType;
// TODO: handle all types
switch (ptAssoc)
{
case DataType.DataType_String:
feat[szFullName] = readerObject.GetString(nameObject);
break;
case DataType.DataType_Int16:
feat[szFullName] = readerObject.GetInt16(nameObject);
break;
case DataType.DataType_Int32:
feat[szFullName] = readerObject.GetInt32(nameObject);
break;
case DataType.DataType_Int64:
feat[szFullName] = readerObject.GetInt64(nameObject);
break;
}
}
}
readerObject.Close();
readerObject = null;
}
}
}
}
break;
//case FdoPropertyType.Raster:
case FdoPropertyType.Single:
feat[name] = reader.GetSingle(name);
break;
case FdoPropertyType.String:
feat[name] = reader.GetString(name);
break;
}
}
else
{
feat[name] = DBNull.Value;
}
}
table.AddRow(feat);
if (table.Rows.Count % 50 == 0)
{
System.Threading.Thread.Sleep(50);
}
}
if (_queryWorker.CancellationPending)
{
e.Cancel = true;
_cancelResult = table;
}
else
{
e.Result = table;
}
}
finally
{
if (reader != null)
{
reader.Close();
}
}
}
}
