/// <summary>
/// Converts the <paramref name="query"/> to a <see cref="List{T}"/> of <see cref="TreeNode"/>
/// </summary>
/// <param name="query">The current MultiDocumentQuery</param>
/// <param name="projection">Mapping function from <see cref="TreeNode"/> to <typeparamref name="TReturn" /></param>
/// <param name="token">Optional cancellation token</param>
/// <returns></returns>
public static async Task <IList <TReturn> > ToListAsync <TReturn>(
this MultiDocumentQuery query,
Func <TreeNode, TReturn> projection,
CancellationToken token = default)
{
var result = await query.GetEnumerableTypedResultAsync(cancellationToken : token);
return(result.Select(projection).ToList());
}
protected async Task <IEnumerable <TPage> > GetPagesOfMultipleTypesAsync(
IEnumerable <string> types,
SiteCulture culture,
Action <MultiDocumentQuery>?filter = default)
{
MultiDocumentQuery query = GetQueryForMultipleTypes(types, culture, filter);
return((await query
.GetEnumerableTypedResultAsync())
.Select(page => page as TPage)
.Where(page => page != null) !);
}
/// <summary>
/// Converts the <paramref name="query"/> to a <see cref="List{T}"/> of <see cref="TreeNode"/>
/// </summary>
/// <param name="query">The current MultiDocumentQuery</param>
/// <param name="token">Optional cancellation token</param>
/// <returns></returns>
public static async Task <IList <TreeNode> > ToListAsync(this MultiDocumentQuery query, CancellationToken token = default)
{
var result = await query.GetEnumerableTypedResultAsync(cancellationToken : token);
return(result.ToList());
}
/// <summary>
/// Returns the first item of the <paramref name="query"/> as a <see cref="TreeNode"/> and null if no items were returned.
/// </summary>
/// <param name="query">The current MultiDocumentQuery</param>
/// <param name="token">Optional cancellation token</param>
/// <returns></returns>
public static async Task <TreeNode?> FirstOrDefaultAsync(this MultiDocumentQuery query, CancellationToken token = default)
{
var result = await query.GetEnumerableTypedResultAsync(cancellationToken : token);
return(result?.FirstOrDefault());
}