/// <summary>
/// Constructs a full insert statement
/// </summary>
protected override string ConstructFullInsertStatementInternal()
{
if (RefreshOnInsertProperties.Length == 0)
{
return
(ResolveWithCultureInvariantFormatter(
$"INSERT INTO {GetTableName()} ({ConstructColumnEnumerationForInsert()}) VALUES ({ConstructParamEnumerationForInsert()})"));
}
// one database generated field to be inserted, and that alone is a the primary key
if (InsertKeyDatabaseGeneratedProperties.Length == 1 && RefreshOnInsertProperties.Length == 1)
{
var keyProperty = InsertKeyDatabaseGeneratedProperties[0];
var keyPropertyType = keyProperty.Descriptor.PropertyType;
if (keyPropertyType == typeof(int) || keyPropertyType == typeof(long))
{
return
(ResolveWithCultureInvariantFormatter(
$@"INSERT
INTO {GetTableName()} ({ConstructColumnEnumerationForInsert()})
VALUES ({ConstructParamEnumerationForInsert()});
SELECT SCOPE_IDENTITY() AS {GetDelimitedIdentifier(keyProperty.PropertyName)}"));
}
}
var dbInsertedOutputColumns = string.Join(",",
RefreshOnInsertProperties.Select(propInfo => $"inserted.{GetColumnName(propInfo, null, true)}"));
var dbGeneratedColumns = ConstructRefreshOnInsertColumnSelection();
// the union will make the constraints be ignored
return(ResolveWithCultureInvariantFormatter($@"
SELECT *
INTO #temp
FROM (SELECT {dbGeneratedColumns} FROM {GetTableName()} WHERE 1=0
UNION SELECT {dbGeneratedColumns} FROM {GetTableName()} WHERE 1=0) as u;
INSERT INTO {GetTableName()} ({ConstructColumnEnumerationForInsert()})
OUTPUT {dbInsertedOutputColumns} INTO #temp
VALUES ({ConstructParamEnumerationForInsert()});
SELECT * FROM #temp"));
}
/// <summary>
/// Constructs a column selection of all columns to be refreshed on insert of the form
/// <code>@PropertyName1,@PropertyName2...</code>
/// </summary>
/// <returns></returns>
protected virtual string ConstructRefreshOnInsertColumnSelection()
{
return(string.Join(",", RefreshOnInsertProperties.Select(propInfo => GetColumnName(propInfo, null, true))));
}
