private bool ContainsProjection(ICollection <IProjection> projections, OrderByItemSegment orderItem)
{
if (projections.IsNotEmpty() && orderItem is IndexOrderByItemSegment)
{
return(true);
}
foreach (var projection in projections)
{
if (IsSameAlias(projection, (TextOrderByItemSegment)orderItem) || IsSameQualifiedName(projection, (TextOrderByItemSegment)orderItem))
{
return(true);
}
}
return(false);
}
public OrderByItem(OrderByItemSegment segment)
{
_segment = segment;
}
private bool ContainsProjection(ICollection <IProjection> projections, OrderByItemSegment orderByItemSegment, SelectCommand selectCommand)
{
return(orderByItemSegment is IndexOrderByItemSegment ||
ContainsItemInShorthandProjection(projections, orderByItemSegment, selectCommand) || ContainsProjection(projections, orderByItemSegment));
}
private bool ContainsItemWithoutOwnerInShorthandProjections(ICollection <IProjection> projections, OrderByItemSegment orderItem, SelectCommand selectCommand)
{
if (orderItem is ColumnOrderByItemSegment columnOrderByItemSegment)
{
if (columnOrderByItemSegment.GetColumn().GetOwner() == null)
{
foreach (var shorthandProjection in GetQualifiedShorthandProjections(projections))
{
if (IsSameProjection(shorthandProjection, (ColumnOrderByItemSegment)orderItem, selectCommand))
{
return(true);
}
}
}
}
return(false);
}
private bool ContainsItemWithOwnerInShorthandProjections(ICollection <IProjection> projections, OrderByItemSegment orderItem, SelectCommand selectCommand)
{
return(orderItem is ColumnOrderByItemSegment columnOrderByItemSegment && columnOrderByItemSegment.GetColumn().GetOwner() != null &&
FindShorthandProjection(projections, columnOrderByItemSegment.GetColumn().GetOwner().GetIdentifier().GetValue(), selectCommand) != null);
}
private bool ContainsItemInShorthandProjection(ICollection <IProjection> projections, OrderByItemSegment orderByItemSegment, SelectCommand selectCommand)
{
return(IsUnqualifiedShorthandProjection(projections) || ContainsItemWithOwnerInShorthandProjections(projections, orderByItemSegment, selectCommand) ||
ContainsItemWithoutOwnerInShorthandProjections(projections, orderByItemSegment, selectCommand));
}
