/// Adds a LEFT/RIGHT JOIN part of the SQL query as FROM parts, while replacing corresponding FROM parts.
///
/// If a subquery parts aggregator is open, redirects the call to it instead.
public void AddOuterJoinPart(string outerMember, string innerMember)
{
if (_visitingSubQueryExpression)
{
_subQueryExpressionPartsAggregator.AddOuterJoinPart(outerMember, innerMember);
}
else
{
var outerSource = outerMember.Split('.')[0];
var innerSource = innerMember.Split('.')[0];
var groupJoinPart =
$"{outerSource} LEFT OUTER JOIN {innerSource} ON ({outerMember} = {innerMember})";
// We're using the fact that the left source table was already added in AddFromPart
var index = FromParts.IndexOf(outerSource);
FromParts[index] = groupJoinPart;
var groupingPart =
$"(SELECT COUNT(*) FROM {innerSource} AS \"temp_{innerSource.Substring(1)} " +
$"WHERE \"temp_{innerMember.Substring(1)} = {outerMember}) AS";
if (SelectPart.Contains(groupingPart))
{
OrderByParts.Add(outerMember);
OrderByParts.Add(innerMember);
}
}
}
/// Adds an INNER JOIN part of the SQL query as FROM parts, while replacing corresponding FROM parts.
///
/// If a subquery parts aggregator is open, redirects the call to it instead.
public void AddInnerJoinPart(string leftMember, string rightMember)
{
if (_visitingSubQueryExpression)
{
_subQueryExpressionPartsAggregator.AddInnerJoinPart(leftMember, rightMember);
}
else
{
var leftSource = leftMember.Split('.')[0];
var rightSource = rightMember.Split('.')[0];
var joinPart =
$"{leftSource} INNER JOIN {rightSource} ON ({leftMember} = {rightMember})";
// We're using the fact that the left source table was already added in AddFromPart
var index = FromParts.IndexOf(leftSource);
FromParts[index] = joinPart;
}
}
