public void CanByDefaultDeserialiseOldVersionOfObjectIntoNewVersionOfObject()
{
using (FileStream stream = new FileStream(FilePathToSerializedOldVersion, FileMode.Open, FileAccess.Read))
{
VersionedSimpleObject deserialized = (VersionedSimpleObject)NewFormatter.Deserialize(stream);
AssertAreEquivalent(ExampleVersionedSimpleObject, deserialized);
}
}
private VersionedSimpleObject GetExistedObject(T obj)
{
WhereSqlClauseBuilder keyBuilder = ORMapping.GetWhereSqlClauseBuilderByPrimaryKey(obj, this.GetMappingInfo());
string sql = string.Format("SELECT TOP 1 {0} FROM {1} WHERE {2} ORDER BY VersionStartTime DESC",
string.Join(",", ORMapping.GetSelectFieldsName(this.GetMappingInfo(), "Data")),
this.GetMappingInfo().TableName,
keyBuilder.ToSqlString(TSqlBuilder.Instance));
DataTable table = DbHelper.RunSqlReturnDS(sql, this.GetConnectionName()).Tables[0];
VersionedSimpleObject result = null;
if (table.Rows.Count > 0)
{
result = this.CreateSimpleObject();
ORMapping.DataRowToObject(table.Rows[0], result);
}
return(result);
}
/// <summary>
/// 合并现有对象信息
/// </summary>
/// <param name="obj">对其进行更新的<typeparamref name="T"/>对象。</param>
public void MergeExistsObjectInfo(T obj)
{
if (SCActionContext.Current.OriginalObject != null &&
SCActionContext.Current.OriginalObject.SchemaType == obj.SchemaType &&
SCActionContext.Current.OriginalObject.ID == obj.ID)
{
obj.Creator = SCActionContext.Current.OriginalObject.Creator;
obj.CreateDate = SCActionContext.Current.OriginalObject.CreateDate;
obj.VersionStartTime = SCActionContext.Current.OriginalObject.VersionStartTime;
}
else
{
VersionedSimpleObject existedInfo = this.GetExistedObject(obj);
if (existedInfo != null)
{
obj.CreateDate = existedInfo.CreateDate;
obj.Creator = existedInfo.Creator;
obj.VersionStartTime = existedInfo.VersionStartTime;
}
}
}