private static void MergeMappingItems(ORMappingItemCollection dest, ORMappingItemCollection src)
{
foreach (ORMappingItem item in src)
{
if (dest.Contains(item.DataFieldName) == false)
{
dest.Add(item);
}
}
}
private static ORMappingItemCollection GetMappingItemsBySubClass(RelativeAttributes attrs, MemberInfo sourceMI)
{
ORMappingItemCollection items = new ORMappingItemCollection();
System.Type subType = attrs.SubClassType != null ? attrs.SubClassType.Type : GetRealType(sourceMI);
MemberInfo[] mis = GetTypeMembers(subType);
foreach (SubClassORFieldMappingAttribute attr in attrs.SubClassFieldMappings)
{
MemberInfo mi = GetMemberInfoByName(attr.SubPropertyName, mis);
if (mi != null)
{
if (items.Contains(attr.DataFieldName) == false)
{
ORMappingItem item = new ORMappingItem();
item.PropertyName = sourceMI.Name;
item.SubClassPropertyName = attr.SubPropertyName;
item.MemberInfo = mi;
if (attrs.SubClassType != null)
{
item.SubClassTypeDescription = attrs.SubClassType.TypeDescription;
}
FillMappingItemByAttr(item, attr);
items.Add(item);
}
}
}
foreach (SubClassSqlBehaviorAttribute attr in attrs.SubClassFieldSqlBehaviors)
{
ORMappingItem item = FindItemBySubClassPropertyName(attr.SubPropertyName, items);
if (item != null)
{
FillMappingItemByBehaviorAttr(item, attr);
}
}
return(items);
}
/// <summary>
///
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="row">DataRow对象</param>
/// <param name="items">映射关系</param>
/// <param name="graph">对象</param>
/// <param name="dod"></param>
public static void DataRowToObject <T>(DataRow row, ORMappingItemCollection items, T graph, DataToObjectDeligations dod)
{
ExceptionHelper.FalseThrow <ArgumentNullException>(row != null, "row");
ExceptionHelper.FalseThrow <ArgumentNullException>(items != null, "items");
ExceptionHelper.FalseThrow <ArgumentNullException>(graph != null, "graph");
ExceptionHelper.FalseThrow <ArgumentNullException>(row.Table != null, "row.Table");
foreach (DataColumn column in row.Table.Columns)
{
if (items.Contains(column.ColumnName))
{
ORMappingItem item = items[column.ColumnName];
System.Type realType = GetRealType(item.MemberInfo);
object data = row[column];
if (Convertible(realType, data))
{
SetValueToObject(item, graph, ConvertData(item, data), row, dod);
}
}
}
}
/// <summary>
/// 将DataReader的值写入到对象中
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="dr">IDataReader对象</param>
/// <param name="items">映射关系</param>
/// <param name="graph">对象</param>
/// <param name="dod"></param>
public static void DataReaderToObject <T>(IDataReader dr, ORMappingItemCollection items, T graph, DataToObjectDeligations dod)
{
ExceptionHelper.FalseThrow <ArgumentNullException>(dr != null, "dr");
ExceptionHelper.FalseThrow <ArgumentNullException>(items != null, "items");
ExceptionHelper.FalseThrow <ArgumentNullException>(graph != null, "graph");
DataTable schemaTable = dr.GetSchemaTable();
foreach (DataRow row in schemaTable.Rows)
{
string columnName = row["ColumnName"].ToString();
if (items.Contains(columnName))
{
ORMappingItem item = items[row["ColumnName"].ToString()];
System.Type realType = GetRealType(item.MemberInfo);
object data = dr[columnName];
if (Convertible(realType, data))
{
SetValueToObject(item, graph, ConvertData(item, data), dr, dod);
}
}
}
}