示例#1
0
        public PagedList <ActivityCategory> GetActivityCategories(ActivityCategoryResourceParameters activityCategoryResourceParameters)
        {
            var collectionBeforePaging = _context.ActivityCategories
                                         .ApplySort(activityCategoryResourceParameters.OrderBy, _propertyMappingService.GetPropertyMapping <ActivityCategoryDTO, ActivityCategory>());

            if (!string.IsNullOrEmpty(activityCategoryResourceParameters.SearchQuery))
            {
                // trim & ignore casing
                var searchQueryForWhereClause = activityCategoryResourceParameters.SearchQuery.Trim().ToLowerInvariant();

                collectionBeforePaging = collectionBeforePaging
                                         .Where(ac => ac.Name.ToLowerInvariant().Contains(searchQueryForWhereClause));
            }

            return(PagedList <ActivityCategory> .Create(collectionBeforePaging, activityCategoryResourceParameters.PageNumber,
                                                        activityCategoryResourceParameters.PageSize));
        }
        private string CreateActivityCategoriesResourceUri(ActivityCategoryResourceParameters activityCategoryResourceParameters,
                                                           ResourceUriType type)
        {
            switch (type)
            {
            case ResourceUriType.PreviousPage:
                return(_urlHelper.Link("GetActivityCategories",
                                       new
                {
                    fields = activityCategoryResourceParameters.Fields,
                    orderBy = activityCategoryResourceParameters.OrderBy,
                    searchQuery = activityCategoryResourceParameters.SearchQuery,
                    pageNumber = activityCategoryResourceParameters.PageNumber - 1,
                    pageSize = activityCategoryResourceParameters.PageSize
                }));

            case ResourceUriType.NextPage:
                return(_urlHelper.Link("GetActivityCategories",
                                       new
                {
                    fields = activityCategoryResourceParameters.Fields,
                    orderBy = activityCategoryResourceParameters.OrderBy,
                    searchQuery = activityCategoryResourceParameters.SearchQuery,
                    pageNumber = activityCategoryResourceParameters.PageNumber + 1,
                    pageSize = activityCategoryResourceParameters.PageSize
                }));

            case ResourceUriType.Current:
            default:
                return(_urlHelper.Link("GetActivityCategories",
                                       new
                {
                    fields = activityCategoryResourceParameters.Fields,
                    orderBy = activityCategoryResourceParameters.OrderBy,
                    searchQuery = activityCategoryResourceParameters.SearchQuery,
                    pageNumber = activityCategoryResourceParameters.PageNumber,
                    pageSize = activityCategoryResourceParameters.PageSize
                }));
            }
        }
        public IActionResult GetActivityCategories(ActivityCategoryResourceParameters activityCategoryResourceParameters)
        {
            if (!_propertyMappingService.ValidMappingExistsFor <ActivityCategoryDTO, ActivityCategory>(activityCategoryResourceParameters.OrderBy))
            {
                return(BadRequest());
            }

            if (!_typeHelperService.TypeHasProperties <ActivityCategoryDTO>(activityCategoryResourceParameters.Fields))
            {
                return(BadRequest());
            }

            var activityCategoriesFromRepo = _activityCategoryRepository.GetActivityCategories(activityCategoryResourceParameters);

            var activityCategories = Mapper.Map <IEnumerable <ActivityCategoryDTO> >(activityCategoriesFromRepo);

            var previousPageLink = activityCategoriesFromRepo.HasPrevious ?
                                   CreateActivityCategoriesResourceUri(activityCategoryResourceParameters, ResourceUriType.PreviousPage) : null;

            var nextPageLink = activityCategoriesFromRepo.HasNext ?
                               CreateActivityCategoriesResourceUri(activityCategoryResourceParameters, ResourceUriType.NextPage) : null;

            var paginationMetadata = new
            {
                previousPageLink = previousPageLink,
                nextPageLink     = nextPageLink,
                totalCount       = activityCategoriesFromRepo.TotalCount,
                pageSize         = activityCategoriesFromRepo.PageSize,
                currentPage      = activityCategoriesFromRepo.CurrentPage,
                totalPages       = activityCategoriesFromRepo.TotalPages
            };

            Response.Headers.Add("X-Pagination", Newtonsoft.Json.JsonConvert.SerializeObject(paginationMetadata));

            var shapedActivityCategories = activityCategories.ShapeData(activityCategoryResourceParameters.Fields);

            return(Ok(JsonConvert.SerializeObject(shapedActivityCategories)));

            //return Ok(activityCategories.ShapeData(activityCategoryResourceParameters.Fields));
        }