Exemplo n.º 1
0
        /// <summary>
        /// Get all images
        /// </summary>
        /// <param name="page">current page</param>
        /// <param name="pageSize">number of items to show</param>
        /// <param name="searchQuery">search items by this criteria</param>
        /// <returns>IPaginationModel Instance</returns>
        public virtual async Task <IPaginationModel <Image> > GetImagesAsync(int?page, int pageSize, string searchQuery)
        {
            //Check for unwanted values
            int currentPage = page ?? 1;

            searchQuery = searchQuery ?? string.Empty;

            //Count number of iamge instances in repository
            int totalRecords = await imageRepo.CountAsync();

            //Check if variable currentPage valid
            currentPage = page ?? pgMaker.CheckPageLimits(currentPage, totalRecords, pageSize);

            //Get instances
            int skip      = pgMaker.Skip(currentPage, pageSize);
            var instances = await imageRepo.ListPaginationAsync(skip, pageSize);

            //Prepare pagination model
            var pgOptions = new PaginationOptions(currentPage, totalRecords, pageSize);

            return(pgMaker.PreparePaginationModel(instances, pgOptions));
        }
Exemplo n.º 2
0
        /// <summary>
        /// Categories pagination
        /// </summary>
        /// <param name="page">current page</param>
        /// <param name="searchQuery">search query</param>
        /// <param name="pageSize">pageSize parametar is fixed(user cant change it)
        /// in this case so we dont need to check if pagesize is negative</param>
        /// <returns>Instnace of IPaginationModel</returns>
        public virtual async Task <IPaginationModel <Category> > GetCategoriesAsync(int?page, string searchQuery, int pageSize)
        {
            //Validate input
            int    currentPage = page ?? 1;
            string search      = searchQuery ?? string.Empty;

            //Get number of instances from database that containts specific text
            var firstSpecification = new CategorySpecification(search);
            var numberOfCategories = await repository.CountAsync(firstSpecification);

            //Is requested page valid ?
            currentPage = maker.CheckPageLimits(currentPage, numberOfCategories, pageSize);

            //Get required instances from database
            int skip = maker.Skip(currentPage, pageSize);
            int take = pageSize;
            var secondSpecification = new CategorySpecification(skip, take, search);
            var listOfCategories    = await repository.ListAsync(secondSpecification);

            //Return instance of IPaginationModel
            var pgOptions = new PaginationOptions(currentPage, numberOfCategories, pageSize);

            return(maker.PreparePaginationModel(listOfCategories, pgOptions));
        }