private static DataMap GenerateMapInternal(Type type, string tableName, IEnumerable <string> keyFields, int schemaVersion)
{
if (schemaVersion == 0)
{
schemaVersion = int.MaxValue;
}
if (keyFields == null)
{
keyFields = new string[0];
}
var map = new DataMap(type);
// get or create data item
IDataMapItem theDataItem = DataItemAttribute.GetFromTypeOrMember(type);
if (theDataItem != null)
{
if (!string.IsNullOrEmpty(tableName))
{
theDataItem.TableName = tableName;
}
}
else
{
theDataItem = new DataMapItem(tableName, true);
}
// assign to data map
map.DataItem = theDataItem;
// create fields from properties
foreach (var pi in type.GetProperties())
{
IDataMapField field = DataFieldAttribute.GetFromProperty(pi);
if ((field == null) && theDataItem.ImplicitFieldDefinition)
{
field = new DataMapField(pi, pi.Name, DataManager.GetDbType(pi.PropertyType), true);
if (keyFields.Contains(field.FieldName, StringComparer.OrdinalIgnoreCase))
{
field.IsKeyField = true;
}
// special handling of rowVersion field
if ((pi.PropertyType == typeof(byte[])) && field.FieldName.Equals("rowVersion", StringComparison.OrdinalIgnoreCase))
{
field.IsRowVersion = true;
}
// special handling of UTC fields (not in 4.0)
if (((pi.PropertyType == typeof(DateTime)) || (pi.PropertyType == typeof(DateTime?))) && field.FieldName.EndsWith("UTC", StringComparison.OrdinalIgnoreCase))
{
field.DateTimeKind = DateTimeKind.Utc;
}
}
if ((field != null) && (field.SchemaVersion <= schemaVersion))
{
map.AppendField(field);
}
}
return(map);
}