//private static object GetAdjustedColumnValue(DataRow row, string columnName, Func<object, object> transform, PropertyInfo prop)
private static object GetAdjustedColumnValue(DataRow row, string columnName, object value, PropertyInfo prop)
{
if (row == null)
{
return(null);
}
var column = row.Table.Columns[columnName];
object val;
if (prop.PropertyType.IsEnum)
{
val = (int)Enum.Parse(prop.PropertyType, value.ToString());
}
else if (column.ColumnName == "Id")
{
val = HttpDataProvider.GetRemoteRowId(row);
}
else
{
val = (string.IsNullOrEmpty(value.ToString()))
? null
: Convert.ChangeType(value, prop.PropertyType);
}
return(val);
}
internal static void ProcessObjectProperties(object source, DataRow row, IMapping mapping)
{
foreach (var parentMapping in mapping.Parents)
{
object realSource, value;
var dataRelation = parentMapping.Value;
var keyField = (dataRelation.ChildProperty != null) ?
dataRelation.PropertyName + "." + dataRelation.ChildProperty :
dataRelation.PropertyName;
try
{
var prop = GetProperty(source, keyField, out realSource);
if (dataRelation.RelationName == null)
{
value = prop.GetValue(realSource, null);
}
else
{
if (dataRelation.ParentColumn != "Id")
{
var parentTable = row.Table.ParentRelations[dataRelation.RelationName].ParentTable;
var parentColumn = parentTable.Columns[dataRelation.ParentColumn];
var parentValue = prop.GetValue(realSource, null);
if (parentValue == null)
{
continue;
}
var parents = parentTable.Select($"{parentColumn} = '{parentValue}'");
var targetRow = (parents.Length > 0) ? parents[0] : parentTable.NewRow();
if (dataRelation.ChildType != null)
{
ProcessSimpleProperties(realSource, targetRow, Topology[dataRelation.ChildType]);
}
else
{
targetRow[parentColumn] = parentValue;
}
if (targetRow.RowState == DataRowState.Detached)
{
parentTable.Rows.Add(targetRow);
}
value = targetRow["Id"];
}
else
{
if (dataRelation.DownstreamTransform != null)
{
value = dataRelation.DownstreamTransform(source, row);
}
else
{
var parentObject = prop.GetValue(realSource, null);
value = (parentObject != null) ? HttpDataProvider.GetLocalRowId((IUniqueId)parentObject) : DBNull.Value;
}
}
}
}
catch (Exception ex) {
value = DBNull.Value;
}
row[parentMapping.Key] = value;
}
}
internal static void ProcessDataRowParents(DataRow row, object target, IMapping mapping)
{
foreach (var parentMapping in mapping.Parents)
{
object realTarget, value;
var prop = GetProperty(target, parentMapping.Value.PropertyName, out realTarget);
var dataRelation = parentMapping.Value;
if (dataRelation.RelationName == null)
{
value = dataRelation.UpstreamTransform(dataRelation.ParentColumn, row, target);
}
else
{
var parentRow = row.GetParentRow(dataRelation.RelationName);
if (parentRow == null)
{
value = null;
}
else
{
if (parentMapping.Value.ChildType == null)
{
value = dataRelation.UpstreamTransform(dataRelation.ParentColumn, parentRow, target);
value = GetAdjustedColumnValue(parentRow, dataRelation.ParentColumn, value, prop);
}
else
{
if (parentRow != null)
{
value = Activator.CreateInstance(dataRelation.ChildType);
var cachedMeta = HttpDataProvider.GetHttpMappingByRow(parentRow);
if (cachedMeta != null)
{
if (value is BaseModel)
{
((BaseModel)value).UniqueId = cachedMeta.RemoteId;
((BaseModel)value).ETag = cachedMeta.ETag;
if (value is BaseModelWithCompanyId)
{
((BaseModelWithCompanyId)value).CompanyId = cachedMeta.RemoteCompanyId;
}
}
else
{
// maybe the object still wants to map to to a related object
// (e.g. Document.BillTo still refers to a Contact.
var p = value.GetType().GetProperty("UniqueId");
if (p != null)
{
p.SetValue(value, cachedMeta.RemoteId, null);
}
}
}
DataRowToObject(parentRow, value);
}
else
{
value = null;
}
}
}
}
prop.SetValue(realTarget, value, null);
}
}
