/// <summary>
/// Generate the SQL UPDATE that updates a row
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateUpdateRowString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory.Dialect, Factory)
.SetTableName(qualifiedTableName)
.AddColumns(ElementColumnNames, elementColumnIsSettable, ElementType);
if (hasIdentifier)
{
update.AddWhereFragment(new string[] { IdentifierColumnName }, IdentifierType, " = ");
}
else if (HasIndex && !indexContainsFormula)
{
update.AddWhereFragment(KeyColumnNames, KeyType, " = ")
.AddWhereFragment(IndexColumnNames, IndexType, " = ");
}
else
{
string[] cnames = ArrayHelper.Join(KeyColumnNames, ElementColumnNames, elementColumnIsInPrimaryKey);
SqlType[] ctypes = ArrayHelper.Join(KeyType.SqlTypes(Factory), ElementType.SqlTypes(Factory), elementColumnIsInPrimaryKey);
update.AddWhereFragment(cnames, ctypes, " = ");
}
if (Factory.Settings.IsCommentsEnabled)
update.SetComment("update collection row " + Role);
return update.ToSqlCommandInfo();
}
/// <inheritdoc />
protected override SqlCommandInfo GenerateDeleteRowString(bool[] columnNullness)
{
var delete = new SqlDeleteBuilder(Factory.Dialect, Factory);
delete.SetTableName(qualifiedTableName);
if (hasIdentifier)
{
delete.AddWhereFragment(new[] { IdentifierColumnName }, IdentifierType, " = ");
}
else
{
var useIndex = HasIndex && !indexContainsFormula;
var additionalFilterType = useIndex ? IndexType : ElementType;
var additionalFilterColumns = useIndex ? IndexColumnNames : ElementColumnNames;
var includes = useIndex ? null : Combine(elementColumnIsInPrimaryKey, columnNullness);
var cnames = includes == null
? ArrayHelper.Join(KeyColumnNames, additionalFilterColumns)
: ArrayHelper.Join(KeyColumnNames, additionalFilterColumns, includes);
var ctypes = includes == null
? ArrayHelper.Join(KeyType.SqlTypes(Factory), additionalFilterType.SqlTypes(Factory))
: ArrayHelper.Join(KeyType.SqlTypes(Factory), additionalFilterType.SqlTypes(Factory), includes);
delete.AddWhereFragment(cnames, ctypes, " = ");
if (columnNullness != null)
{
for (var i = 0; i < columnNullness.Length; i++)
{
if (columnNullness[i])
{
continue;
}
delete.AddWhereFragment($"{additionalFilterColumns[i]} is null");
}
}
}
if (Factory.Settings.IsCommentsEnabled)
{
delete.SetComment("delete collection row " + Role);
}
return(delete.ToSqlCommandInfo());
}