public DateTimeFieldMapping(string fieldName, string indexName, DataMapping mapping, bool isNullable,
string dbType, object defaultValue, bool isIdentity, bool isPrimaryKey)
: base(typeof(DateTime), fieldName, indexName, mapping, isNullable, dbType)
{
if (isIdentity)
{
throw new LightDataException(string.Format(SR.DataMappingUnsupportIdentityFieldType, ObjectType,
fieldName, ObjectType));
}
IsPrimaryKey = isPrimaryKey;
var nullType = Type.GetType("System.Nullable`1", true);
NullableType = nullType.MakeGenericType(ObjectType);
_minValue = default(DateTime);
if (defaultValue != null)
{
var defaultValueType = defaultValue.GetType();
if (defaultValueType == typeof(DefaultTime))
{
var defaultTime = (DefaultTime)defaultValue;
_defaultTimeFunction = DefaultTimeFunction.GetFunction(defaultTime);
if (defaultTime == DefaultTime.TimeStamp || defaultTime == DefaultTime.UtcTimeStamp)
{
_isTimeStamp = true;
}
_defaultValue = _defaultTimeFunction;
}
else if (defaultValueType == typeof(DateTime))
{
_defaultValue = defaultValue;
}
else if (defaultValueType == typeof(string))
{
var str = defaultValue as string;
if (DateTime.TryParse(str, out var dt))
{
_defaultValue = dt;
}
else
{
throw new LightDataException(string.Format(SR.DefaultValueError, ObjectType, fieldName,
ObjectType));
}
}
}
}
public PrimitiveFieldMapping(Type type, string fieldName, string indexName, DataMapping mapping, bool isNullable, string dbType, object defaultValue, bool isIdentity, bool isPrimaryKey)
: base(type, fieldName, indexName, mapping, isNullable, dbType)
{
if (type != typeof(string))
{
Type itemstype = Type.GetType("System.Nullable`1");
_nullableType = itemstype.MakeGenericType(type);
}
else
{
_nullableType = type;
}
if (defaultValue != null)
{
Type defaultValueType = defaultValue.GetType();
if (_typeCode == TypeCode.DateTime)
{
if (defaultValueType == typeof(DefaultTime))
{
DefaultTime defaultTime = (DefaultTime)defaultValue;
this._defaultTimeFunction = DefaultTimeFunction.GetFunction(defaultTime);
if (defaultTime == DefaultTime.TimeStamp || defaultTime == DefaultTime.UtcTimeStamp)
{
isTimeStamp = true;
}
this._defaultValue = this._defaultTimeFunction;
}
else if (defaultValueType == typeof(DateTime))
{
this._defaultValue = defaultValue;
}
else if (defaultValueType == typeof(string))
{
string str = defaultValue as string;
if (DateTime.TryParse(str, out DateTime dt))
{
this._defaultValue = dt;
}
}
}
else if (defaultValueType == type)
{
this._defaultValue = defaultValue;
}
else
{
this._defaultValue = Convert.ChangeType(defaultValue, type);
}
}
if (isIdentity)
{
if (_typeCode == TypeCode.Int32 || _typeCode == TypeCode.Int64 || _typeCode == TypeCode.UInt32 || _typeCode == TypeCode.UInt64)
{
_isIdentity = true;
}
else
{
throw new LightDataException(string.Format(SR.DataMappingUnsupportIdentityFieldType, ObjectType, fieldName, type));
}
}
_isPrimaryKey = isPrimaryKey;
switch (_typeCode)
{
case TypeCode.String:
_minValue = string.Empty;
break;
case TypeCode.Boolean:
_minValue = false;
break;
case TypeCode.Byte:
_minValue = byte.MinValue;
break;
case TypeCode.SByte:
_minValue = MinSByte;
break;
case TypeCode.DateTime:
_minValue = DateTime.MinValue;
break;
case TypeCode.Char:
_minValue = Char.MinValue;
break;
case TypeCode.Int16:
_minValue = MinInt16;
break;
case TypeCode.Int32:
_minValue = MinInt32;
break;
case TypeCode.Int64:
_minValue = MinInt64;
break;
case TypeCode.UInt16:
_minValue = UInt16.MinValue;
break;
case TypeCode.UInt32:
_minValue = UInt32.MinValue;
break;
case TypeCode.UInt64:
_minValue = UInt64.MinValue;
break;
case TypeCode.Decimal:
_minValue = MinDecimal;
break;
case TypeCode.Single:
_minValue = MinSingle;
break;
case TypeCode.Double:
_minValue = MinDouble;
break;
}
}