public ActionResult <IEnumerable <RecipeDto> > GetCategories([FromQuery] RecipeParametersDto recipeParametersDto)
{
var recipesFromRepo = _recipeRepository.GetRecipes(recipeParametersDto);
var previousPageLink = recipesFromRepo.HasPrevious
? CreateRecipesResourceUri(recipeParametersDto,
ResourceUriType.PreviousPage)
: null;
var nextPageLink = recipesFromRepo.HasNext
? CreateRecipesResourceUri(recipeParametersDto,
ResourceUriType.NextPage)
: null;
var paginationMetadata = new
{
totalCount = recipesFromRepo.TotalCount,
pageSize = recipesFromRepo.PageSize,
pageNumber = recipesFromRepo.PageNumber,
totalPages = recipesFromRepo.TotalPages,
hasPrevious = recipesFromRepo.HasPrevious,
hasNext = recipesFromRepo.HasNext,
previousPageLink,
nextPageLink
};
Response.Headers.Add("X-Pagination",
JsonSerializer.Serialize(paginationMetadata));
var recipesDto = _mapper.Map <IEnumerable <RecipeDto> >(recipesFromRepo);
return(Ok(recipesDto));
}
public PagedList <Recipe> GetRecipes(RecipeParametersDto recipeParameters)
{
if (recipeParameters == null)
{
throw new ArgumentNullException(nameof(recipeParameters));
}
var collection = _context.Recipes as IQueryable <Recipe>;
if (!string.IsNullOrWhiteSpace(recipeParameters.QueryString))
{
var QueryString = recipeParameters.QueryString.Trim();
collection = collection.Where(r => r.RecipeTextField1.Contains(QueryString) ||
r.RecipeTextField2.Contains(QueryString));
}
var sieveModel = new SieveModel
{
Sorts = recipeParameters.SortOrder,
Filters = recipeParameters.Filters
};
collection = _sieveProcessor.Apply(sieveModel, collection);
return(PagedList <Recipe> .Create(collection,
recipeParameters.PageNumber,
recipeParameters.PageSize));
}
private string CreateRecipesResourceUri(
RecipeParametersDto recipeParametersDto,
ResourceUriType type)
{
switch (type)
{
case ResourceUriType.PreviousPage:
return(Url.Link("GetRecipes",
new
{
filters = recipeParametersDto.Filters,
orderBy = recipeParametersDto.SortOrder,
pageNumber = recipeParametersDto.PageNumber - 1,
pageSize = recipeParametersDto.PageSize,
searchQuery = recipeParametersDto.QueryString
}));
case ResourceUriType.NextPage:
return(Url.Link("GetRecipes",
new
{
filters = recipeParametersDto.Filters,
orderBy = recipeParametersDto.SortOrder,
pageNumber = recipeParametersDto.PageNumber + 1,
pageSize = recipeParametersDto.PageSize,
searchQuery = recipeParametersDto.QueryString
}));
default:
return(Url.Link("GetRecipes",
new
{
filters = recipeParametersDto.Filters,
orderBy = recipeParametersDto.SortOrder,
pageNumber = recipeParametersDto.PageNumber,
pageSize = recipeParametersDto.PageSize,
searchQuery = recipeParametersDto.QueryString
}));
}
}
