/// <summary>
/// Asynchronously applies pagination to a LINQ query.
/// </summary>
/// <typeparam name="TKey">The type of a key.</typeparam>
/// <typeparam name="TEntity">The type of an entity.</typeparam>
/// <param name="query">The query object on which the extension method is executed.</param>
/// <param name="paginationCriteria">Pagination criteria.</param>
/// <returns>Returns an instance of the type <see cref="IQueryable{T}"/>.</returns>
public static async Task <DaPaginatedEntityList <TKey, TEntity> > PaginateAsync <TKey, TEntity>(this IQueryable <TEntity> query, DaDataPaginationCriteria paginationCriteria)
where TKey : IEquatable <TKey>
where TEntity : IDaEntity <TKey>
{
var q = query
.Skip(GetSkip(paginationCriteria.PageIndex, paginationCriteria.PageSize))
.Take(paginationCriteria.PageSize);
var count = await q.CountAsync();
var paginationResult = new DaDataPaginationResult(paginationCriteria, count);
var entities = await query.ToListAsync();
return(new DaPaginatedEntityList <TKey, TEntity>(entities, paginationResult));
}
/// <summary>
/// Asynchronously applies pagination to a LINQ query.
/// </summary>
/// <typeparam name="TKey">The type of a key.</typeparam>
/// <typeparam name="TEntity">The type of an entity.</typeparam>
/// <param name="query">The query object on which the extension method is executed.</param>
/// <param name="paginationCriteria">Pagination criteria.</param>
/// <param name="paginationResult">Pagination result.</param>
/// <returns>Returns an instance of the type <see cref="IQueryable{T}"/>.</returns>
public static IQueryable <TEntity> Paginate <TKey, TEntity>(this IQueryable <TEntity> query, DaDataPaginationCriteria paginationCriteria, out DaDataPaginationResult paginationResult)
where TKey : IEquatable <TKey>
where TEntity : IDaEntity <TKey>
{
var q = query
.Skip(GetSkip(paginationCriteria.PageIndex, paginationCriteria.PageSize))
.Take(paginationCriteria.PageSize);
paginationResult = new DaDataPaginationResult(paginationCriteria, q.Count());
return(q);
}
