internal Converter <DbDataReader, T> GetConverter <T>(string spName, DbDataReader schema, int resultDepth)
{
Type entityType = typeof(T);
string key = String.Concat(spName, entityType.Name, schema.FieldCount.ToString(), resultDepth.ToString());
var converter = (Converter <DbDataReader, T>)Cache[key];
if (converter == null)
{
TypeCode code = Type.GetTypeCode(entityType);
if (code == TypeCode.Object && entityType != typeof(Guid))
{
var convertibles = GetProperties(spName, entityType);
if (schema.FieldCount <= convertibles.Count)
{
converter = EntityConverter <T> .CreateReadSingle(convertibles.ToArray());
}
}
if (converter == null)
{
converter = EntityUtility.CreateConverter <T>();
}
Cache[key] = converter;
}
return(converter);
}
public TEntity GetRow <TEntity>()
{
this.CheckDataReader();
if (_changeType == SqlRowChangedTypes.Deleted)
{
return(default(TEntity));
}
var converter = EntityUtility.CreateConverter <TEntity>();
return(converter(DataReader));
}
private void DeriveAssignParametersByEntity(DbCommand cmd, object entity)
{
DbParameter[] discoveredParameters = base.GetDeriveParameters(cmd);
if (cmd.Parameters.Count == 0)
{
cmd.Parameters.Add(((ICloneable)discoveredParameters[0]).Clone());
}
string spName = cmd.CommandText;
IEnumerable <PropertyAccess> enumerable = EntityUtility.GetEnumerable(entity.GetType());
for (int i = 1; i < discoveredParameters.Length; i++)
{
DbParameter discoveredParameter = discoveredParameters[i];
foreach (PropertyAccess property in enumerable)
{
var attr = (System.Data.Linq.Mapping.ColumnAttribute)Attribute.GetCustomAttribute(property.EntityProperty, typeof(System.Data.Linq.Mapping.ColumnAttribute));
string name;
if (attr == null)
{
name = base.Factory.ParameterNamePrefix + property.MappedName;
}
else
{
name = base.Factory.ParameterNamePrefix + (string.IsNullOrEmpty(attr.Name) ? property.MappedName : attr.Name);
}
if (name == discoveredParameter.ParameterName)
{
object value = property.GetValue(entity) ?? DBNull.Value;
int index = cmd.Parameters.IndexOf(discoveredParameter.ParameterName);
if (index == -1)
{
object cloned = ((ICloneable)discoveredParameter).Clone();
((DbParameter)cloned).Value = value;
cmd.Parameters.Add(cloned);
}
else
{
cmd.Parameters[index].Value = value;
}
break;
}
}
}
}
