public void Update(DataTable t)
{
var schema = GetSchema();
var dataClass = schema.FindClassByID(t.TableName);
if (dataClass != null)
{
foreach (DataRow r in t.Rows)
{
switch (r.RowState)
{
case DataRowState.Added:
InsertDataRow(dataClass, r);
break;
case DataRowState.Modified:
UpdateDataRow(dataClass, r);
break;
case DataRowState.Deleted:
DeleteDataRow(dataClass, r);
break;
}
}
t.AcceptChanges();
return;
}
// check for relation table
var relation = schema.FindRelationshipByID(t.TableName);
if (relation != null)
{
foreach (DataColumn c in t.Columns)
{
if (c.ColumnName != "subject_id" && c.ColumnName != "object_id")
{
throw new ArgumentException(String.Format("{0} does not exist in {1}", c.ColumnName, t.TableName));
}
}
if (!t.Columns.Contains("subject_id"))
{
throw new ArgumentException("subject_id column is required");
}
if (!t.Columns.Contains("object_id"))
{
throw new ArgumentException("object_id column is required");
}
foreach (DataRow r in t.Rows)
{
switch (r.RowState)
{
case DataRowState.Added:
ObjectContainerStorage.AddRelation(
new ObjectRelation(
Convert.ToInt64(r["subject_id"]),
relation,
Convert.ToInt64(r["object_id"])));
break;
case DataRowState.Deleted:
ObjectContainerStorage.RemoveRelation(
new ObjectRelation(
Convert.ToInt64(r["subject_id", DataRowVersion.Original]),
relation,
Convert.ToInt64(r["object_id", DataRowVersion.Original]))
);
break;
default:
throw new NotSupportedException(String.Format("Relation doesn't support row state {0}", r.RowState));
}
}
t.AcceptChanges();
return;
}
UnderlyingDalc.Update(t);
}
public void Insert(string tableName, IDictionary <string, IQueryValue> data)
{
var schema = GetSchema();
var dataClass = schema.FindClassByID(tableName);
if (dataClass != null)
{
var objContainer = new ObjectContainer(dataClass);
foreach (var changeEntry in data)
{
if (!(changeEntry.Value is QConst))
{
throw new NotSupportedException(
String.Format("{0} value type is not supported", changeEntry.Value.GetType()));
}
objContainer[changeEntry.Key] = ((QConst)changeEntry.Value).Value;
}
ObjectContainerStorage.Insert(objContainer);
return;
}
// check for relation table
var relation = schema.FindRelationshipByID(tableName);
if (relation != null)
{
long?subjId = null;
long?objId = null;
foreach (var entry in data)
{
var valConst = entry.Value as QConst;
if (valConst == null)
{
throw new NotSupportedException(
String.Format("Value {0} for {1} is not supported", entry.Value, entry.Key));
}
if (entry.Key == "subject_id")
{
subjId = Convert.ToInt64(((QConst)entry.Value).Value);
}
else if (entry.Key == "object_id")
{
objId = Convert.ToInt64(((QConst)entry.Value).Value);
}
else
{
throw new ArgumentException(String.Format("{0} does not exist in {1}", entry.Key, tableName));
}
}
if (!subjId.HasValue)
{
throw new ArgumentException("subject_id is required");
}
if (!objId.HasValue)
{
throw new ArgumentException("object_id is required");
}
ObjectContainerStorage.AddRelation(
new ObjectRelation(subjId.Value, relation, objId.Value));
return;
}
UnderlyingDalc.Insert(tableName, data);
}
