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alexandre-spieser avatar alexandre-spieser commented on May 28, 2024

Hi, yeah you're right.
I have prototyped it already but it's untested.
Try this:

        /// <summary>
        /// Asynchronously returns a paginated list of the documents matching the filter condition.
        /// </summary>
        /// <typeparam name="TDocument">The type representing a Document.</typeparam>
        /// <param name="filter">A LINQ expression filter.</param>
        /// <param name="sortSelector">The property selector.</param>
        /// <param name="ascending">Order of the sorting.</param>
        /// <param name="skipNumber">The number of documents you want to skip. Default value is 0.</param>
        /// <param name="takeNumber">The number of documents you want to take. Default value is 50.</param>
        /// <param name="partitionKey">An optional partition key.</param>
        public virtual async Task<List<TDocument>> GetSortedPaginatedAsync<TDocument>(
            Expression<Func<TDocument, bool>> filter,
            Expression<Func<TDocument, object>> sortSelector,
            bool ascending = true,
            int skipNumber = 0,
            int takeNumber = 50,
            string partitionKey = null)
            where TDocument : IDocument
        {
            var sorting = ascending
                ? Builders<TDocument>.Sort.Ascending(sortSelector)
                : Builders<TDocument>.Sort.Descending(sortSelector);

            return await HandlePartitioned<TDocument>(partitionKey)
                    .Find(filter)
                    .Sort(sorting)
                    .Skip(skipNumber)
                    .Limit(takeNumber)
                    .ToListAsync();
        }

As you can see quite a few extra params are needed. I might create a class called PaginationOptions to reduce the number of params.

from mongodb-generic-repository.

hiredgunhouse avatar hiredgunhouse commented on May 28, 2024

Looks good, except for a scenario where you want to sort by multiple columns.
I believe Builders.Sort has a Combine method that can combine multiple sort definitions at least that's what I used.
Probably it would be best to provide an overload that takes SortDefinition and show in the docs that you can use that for both single and multiple column sorting scenarios.
Also an overload taking PaginationOptions sounds good.

BTW. Thank you for your fantastic work it saved me a ton of time!

from mongodb-generic-repository.

alexandre-spieser avatar alexandre-spieser commented on May 28, 2024

Done.
https://github.com/alexandre-spieser/mongodb-generic-repository/releases/tag/1.3.9

from mongodb-generic-repository.

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