internal static View ConvertCollection <T>(IEnumerable data)
{
var ctype = typeof(T);
var type = Common.TryGetSerializationItemType(ctype, data, Text.Method.ToView);
if (type == null)
{
throw new QueryTalkException("Common.TryGetSerializationItemType",
QueryTalkExceptionType.EmptyDynamicResult, String.Format("type = {0}", ctype), Text.Method.ToView);
}
Type clrType = null;
QueryTalkException exception;
List <ViewColumnInfo> columns = new List <ViewColumnInfo>();
bool isScalar = (Mapping.CheckClrCompliance(type, out clrType, out exception) == Mapping.ClrTypeMatch.ClrMatch);
bool isDataValue = type == typeof(Value);
if (isDataValue)
{
isScalar = true;
clrType = typeof(System.Object);
}
bool isEmpty = _CheckIfEmpty(data, isScalar);
var properties = type.GetReadableProperties();
List <IPropertyAccessor> getters = null;
int numberOfProperties = 0;
var sqlOuter = Text.GenerateSql(500);
var sqlEmpty = Text.GenerateSql(200)
.NewLineIndent(Text.Select).S();
// outer select:
if (isScalar)
{
_BuildScalarOuterSelect(type, clrType, columns, sqlOuter);
}
else
{
_BuildClassOuterSelect(type, ref clrType, ref exception, columns, isEmpty, properties, out getters,
out numberOfProperties, sqlOuter, sqlEmpty);
}
// inner select:
var sqlInner = Text.GenerateSql(500);
int rowCount = 0;
if (!isEmpty)
{
bool firstRow = true;
foreach (var row in data)
{
if (!isScalar && row == null)
{
continue;
}
_BuildSelect(sqlInner, firstRow);
if (!isScalar)
{
_BuildClassValues(columns, properties, getters, numberOfProperties, sqlInner, firstRow, row);
}
else
{
AppendColumn(sqlInner, Mapping.BuildUnchecked(row), Text.SingleColumnShortName);
}
firstRow = false;
++rowCount;
}
}
else
{
if (isScalar)
{
AppendColumn(sqlEmpty, Text.Null, Text.SingleColumnShortName);
}
sqlInner.Append(sqlEmpty.ToString());
}
return(Finalizer(type, sqlOuter, sqlInner, columns.ToArray(), rowCount, isEmpty));
}
