/// <summary>
/// Adds a sort builder.
/// </summary>
/// <param name="sort"></param>
/// <returns></returns>
public SearchBuilder Sort(ISortBuilder sort)
{
if (_sorts == null)
{
_sorts = new List <ISortBuilder>();
}
_sorts.Add(sort);
return(this);
}
protected override void VisitSort(IFragmentBuilder parent, IQueryGraphBuilder graph, ISortBuilder expression)
{
throw new NotImplementedException();
}
protected override void VisitSort(IFragmentBuilder parent, IQueryGraphBuilder graph, ISortBuilder expression)
{
if (expression.Expressions.Any())
{
return;
}
var filter = graph.Fragment <IFilterBuilder>();
if (!filter.Limit.HasValue && !filter.Offset.HasValue)
{
return;
}
var table = graph.Source.Tables.FirstOrDefault();
if (table == null)
{
throw new NotImplementedException();
}
var sort = graph.Parent.Fragment <ISortBuilder>();
if (sort != null)
{
expression.Expressions.AddRange(sort.GetColumns(table.Table));
}
if (expression.IsEmpty())
{
expression.AddColumns(table.Table.PrimaryKeys);
}
}
protected override void VisitSort(IFragmentBuilder parent, IQueryGraphBuilder graph, ISortBuilder expression)
{
if (EnsureOrderBy.Predicate(parent, graph, expression))
{
new EnsureOrderBy(this.Database).Visit(parent, graph, expression);
}
base.VisitSort(parent, graph, expression);
}
/// <summary>
/// Adds a sort builder.
/// </summary>
/// <param name="sort"></param>
/// <returns></returns>
public SearchBuilder Sort(ISortBuilder sort)
{
if (_sorts == null)
{
_sorts = new List<ISortBuilder>();
}
_sorts.Add(sort);
return this;
}
protected override void VisitSort(IFragmentBuilder parent, IQueryGraphBuilder graph, ISortBuilder expression)
{
//Nothing to do.
}
protected override void VisitSort(IFragmentBuilder parent, IQueryGraphBuilder graph, ISortBuilder expression)
{
this.Push(new SqlOrderByWriter(parent, graph, this.Database, this, this.Parameters));
this.Peek.Write(expression);
this.Pop();
}
protected abstract void VisitSort(IFragmentBuilder parent, IQueryGraphBuilder graph, ISortBuilder expression);
