protected KeyInfo GetParentKey(Type parentType, DataRelationMapAttribute relationMap, int schemeId, object[] attrs)
{
TableMapAttribute tableId = Array.Find(attrs, a =>
a is TableMapAttribute) as TableMapAttribute ?? new TableMapAttribute((int[])null);
KeyInfo ki = new KeyInfo();
ki.Name = relationMap.MappingName;
ki.RefTable = new RefInfo(tableId.TableIx, tableId.TableName);
ki.ChildType = relationMap.ItemType;
ki.ParentType = parentType;
foreach (object att in attrs)
{
DataRelationColumnMapAttribute relColumnMap = att as DataRelationColumnMapAttribute;
if (relColumnMap == null || relColumnMap.SchemeId != schemeId)
{
continue;
}
ki.ParentColumns.Add(relColumnMap.ParentColumn);
ki.ChildColumns.Add(relColumnMap.ChildColumn);
}
return(ki);
}
protected override bool AddMappingInfo(MemberInfo member, ExtractInfo extractInfo)
{
bool result = false;
object[] attrs = member.GetCustomAttributes(typeof(DataMapAttribute), true);
if (attrs == null || attrs.Length <= 0)
{
return(result);
}
foreach (object att in attrs)
{
DataColumnMapAttribute columnMap = att as DataColumnMapAttribute;
if (columnMap != null &&
columnMap.SchemeId == extractInfo.SchemeId &&
att.GetType() == typeof(DataColumnMapAttribute))
{
result = true;
extractInfo.MemberColumns.Add(
new MemberExtractInfo(string.IsNullOrEmpty(columnMap.MappingName) ? member.Name : columnMap.MappingName, member));
}
ComplexDataMapAttribute complexMap = att as ComplexDataMapAttribute;
if (complexMap != null &&
complexMap.SchemeId == extractInfo.SchemeId &&
att.GetType() == typeof(ComplexDataMapAttribute))
{
result = true;
extractInfo.SubTypes.Add(
new RelationExtractInfo(
complexMap.MappingName,
member,
new ExtractInfo(complexMap.ItemType, complexMap.NestedSchemeId),
null
)
);
}
DataRelationMapAttribute relationMap = att as DataRelationMapAttribute;
if (relationMap != null &&
relationMap.SchemeId == extractInfo.SchemeId &&
att.GetType() == typeof(DataRelationMapAttribute))
{
result = true;
extractInfo.ChildTypes.Add(
new RelationExtractInfo(
relationMap.MappingName,
member,
new ExtractInfo(relationMap.ItemType, relationMap.NestedSchemeId),
GetParentKey(extractInfo.TargetType, relationMap, extractInfo.SchemeId, attrs)
)
);
}
} //end of foreach
return(result);
}
