string GenerateTouristRouteResourceURL(
TouristRouteResourceParameters parameters,
PaginationResourceParameter paginationParameters,
ResourceUriType type
)
{
return(type switch
{
ResourceUriType.PreviousPage => _urlHelper.Link("GetTouristRoutes",
new
{
keyword = parameters.Keyword,
rating = parameters.Rating,
pageNumber = paginationParameters.PageNumber - 1,
pageSize = paginationParameters.PageSize
}),
ResourceUriType.NextPage => _urlHelper.Link("GetTouristRoutes",
new
{
keyword = parameters.Keyword,
rating = parameters.Rating,
pageNumber = paginationParameters.PageNumber + 1,
pageSize = paginationParameters.PageSize
}),
_ => _urlHelper.Link("GetTouristRoutes",
new
{
keyword = parameters.Keyword,
rating = parameters.Rating,
pageNumber = paginationParameters.PageNumber,
pageSize = paginationParameters.PageSize
})
});
private IEnumerable <LinkDto> CreateLinksForTouristRouteList(
TouristRouteResourceParameters touristRouteResourceParameters,
PaginationResourceParameters paginationResourceParameters)
{
var links = new List <LinkDto>();
links.Add(
new LinkDto(
GenerateTouristRouteResourceUrl(
touristRouteResourceParameters,
paginationResourceParameters,
ResourceUriType.CurrentPage),
"self",
"GET"
)
);
links.Add(new LinkDto(
Url.Link("CreateTouristRoute", null),
"create_tourist_route",
"POST"
));
return(links);
}
private string GenerateTouristRouteResourceUrl(TouristRouteResourceParameters touristRouteResourceParameters,
PaginationResourceParameters paginationResourceParameters, ResourceUrlType resourceUrlType)
{
return(resourceUrlType switch
{
ResourceUrlType.PreviousPage => _urlHelper.Link("GetTouristRoutes", new
{
orderBy = touristRouteResourceParameters.OrderBy,
keyword = touristRouteResourceParameters.Keyword,
rating = touristRouteResourceParameters.Rating,
fields = touristRouteResourceParameters.Fields,
pageNumber = paginationResourceParameters.PageNumber - 1,
pageSize = paginationResourceParameters.PageSize
}),
ResourceUrlType.NextPage => _urlHelper.Link("GetTouristRoutes", new
{
orderBy = touristRouteResourceParameters.OrderBy,
keyword = touristRouteResourceParameters.Keyword,
rating = touristRouteResourceParameters.Rating,
fields = touristRouteResourceParameters.Fields,
pageNumber = paginationResourceParameters.PageNumber + 1,
pageSize = paginationResourceParameters.PageSize
}),
_ => _urlHelper.Link("GetTouristRoutes", new
{
orderBy = touristRouteResourceParameters.OrderBy,
keyword = touristRouteResourceParameters.Keyword,
rating = touristRouteResourceParameters.Rating,
fields = touristRouteResourceParameters.Fields,
pageNumber = paginationResourceParameters.PageNumber,
pageSize = paginationResourceParameters.PageSize
})
});
public IActionResult GetTouristRoutes(
[FromQuery] TouristRouteResourceParameters parameters
//[FromQuery] string keyword,
//string rating // 小于，大于，等于
) // FromQuery vs FromBody
{
/*
* [ApiController] 里面有attribute， 所以上面函数参数里面的 [FromQuery]是可以省略的， ASP会自动帮我们绑定URL中的参数，
* 但是为了让代码更有逻辑性，还是不要省略这个attribute。 而且FromQuery还有另一个用处，就是如果url的参数命名与action函数
* 参数的名称不一致，一定要使用FromQuery的name属性匹配一下， [FromQuery(name="")]。
* 在这个项目中，参数的名称是一致的，所以不需要做这一步。
* 写上可以使得更清晰
* **/
var touristRoutesFromRepo = _touristRouteRepository.GetTouristRoutes(parameters.Keyword, parameters.RatingOperator, parameters.RatingValue);
if (touristRoutesFromRepo == null || touristRoutesFromRepo.Count() <= 0)
{
return(NotFound("没有旅游路线"));
}
// 使用IEnumerable进行列表的映射
var touristRouteDto = _mapper.Map <IEnumerable <TouristRouteDto> >(touristRoutesFromRepo);
return(Ok(touristRouteDto));
}
public async Task <IActionResult> GetTouristRoutesAsync([FromQuery] TouristRouteResourceParameters parameters)
{
var touristRoutesFromRepo = await _touristRouteRepository
.GetTouristRoutesAsync(parameters.Keyword, parameters.OperatorType, parameters.RatingValue);
if (touristRoutesFromRepo == null || touristRoutesFromRepo.Count() == 0)
{
return(NotFound("沒有旅遊路線"));
}
var touristRouteDto = _mapper.Map <IEnumerable <TouristRouteDto> >(touristRoutesFromRepo);
return(Ok(touristRouteDto));
}
public async Task <IActionResult> GetTouristRoutes(
[FromQuery] TouristRouteResourceParameters parameters
// [FromQuery] string keyword,
// string rating //lessThan, largerThan, equalTo
)
{
var touristRouteFromRepo = await _touristRouteRepository.GetTouristRoutesAsync(parameters.Keyword, parameters.RatingOperator, parameters.RatingValue);
if (touristRouteFromRepo == null || touristRouteFromRepo.Count() <= 0)
{
return(NotFound("没有旅游路线"));
}
var touristRoutesDto = _mapper.Map <IEnumerable <TouristRouteDto> >(touristRouteFromRepo);
return(Ok(touristRoutesDto));
}
public async Task <IActionResult> GetTouristRoutesAsync(
[FromQuery] TouristRouteResourceParameters parameters
//[FromQuery] string keyword,
//string rating // 小于lessThan 大于largeThan 等于equalTo
)
{
var touristRouteFromRepo = await touristRouteRepository.GetTouristRoutesAsync(parameters.keyword, parameters.RatingOperator, parameters.RatingValue);
if (touristRouteFromRepo == null)
{
return(NotFound("目前暂停所有旅游路线"));
}
var touristRouteDto = mapper.Map <IEnumerable <TouristRouteDto> >(touristRouteFromRepo);
return(Ok(touristRouteDto));
}
public IActionResult GerTouristRoutes(
[FromQuery] TouristRouteResourceParameters parameters
//[FromQuery] string keyword,
//string rating
)
{
var touristRouteFromRep = _touristRouteRepository.GetTouristRoutes(parameters.Keyword, parameters.operatorType, parameters.raringVlaue);
if (touristRouteFromRep == null || touristRouteFromRep.Count() < 0)
{
return(NotFound("没有旅游路线"));
}
var touristRoutesDto = _mapper.Map <IEnumerable <TouristRouteDto> >(touristRouteFromRep);
return(Ok(touristRoutesDto));
} //GetTouristRoute()
private string GenerateTouristRouteResourceURL(
TouristRouteResourceParameters parameters,
PaginationResourceParameters parameters2,
ResourceUriType type
)
{
return(type switch
{
ResourceUriType.PreviousPage => urlHelper.Link("GetTouristRoutesAsync",
new
{
fields = parameters.Fields,
orderBy = parameters.OrderBy,
keyword = parameters.Key,
rating = parameters.Rating,
pageNumber = parameters2.PageNumber - 1,
pageSize = parameters2.PageSize
}),
ResourceUriType.NextPage => urlHelper.Link("GetTouristRoutesAsync",
new
{
fields = parameters.Fields,
orderBy = parameters.OrderBy,
keyword = parameters.Key,
rating = parameters.Rating,
pageNumber = parameters2.PageNumber + 1,
pageSize = parameters2.PageSize
}),
_ => urlHelper.Link("GetTouristRoutesAsync",
new
{
fields = parameters.Fields,
orderBy = parameters.OrderBy,
keyword = parameters.Key,
rating = parameters.Rating,
pageNumber = parameters2.PageNumber,
pageSize = parameters2.PageSize
})
});
[HttpHead]// only return header info not the body
public async Task <IActionResult> GetRouristRoutes(
[FromQuery] TouristRouteResourceParameters parameters,
[FromQuery] PaginationResourceParameters paginationResourceParameters,
[FromHeader(Name = "Accept")] string mediaType
//[FromQuery] string keyword,
//string rating
)
{
if (!MediaTypeHeaderValue.TryParse(mediaType, out MediaTypeHeaderValue parsedMediaType))
{
return(BadRequest($"http header: accept 不正确"));
}
if (!_propertyMappingService
.IsMappingExists <TouristRouteDto, TouristRoute>
(parameters.OrderBy))
{
return(BadRequest($"请输入正确的排序参数"));
}
if (!_propertyMappingService.IsPropertyExists <TouristRouteDto>(parameters.Fields))
{
return(BadRequest($"请输入正确的塑形参数"));
}
var touristRoutesFromRepo = await _touristRouteRepository
.GetTouristRoutesAsync(
parameters.Keyword,
parameters.RatingOperator,
parameters.RatingValue,
paginationResourceParameters.PageSize,
paginationResourceParameters.PageNumber,
parameters.OrderBy);
if (touristRoutesFromRepo == null ||
touristRoutesFromRepo.Count() <= 0)
{
return(NotFound("没有旅游路线"));
}
var previousPageLink = touristRoutesFromRepo.HasPrevious ?
GenerateTouristRouteResourceUrl(
parameters,
paginationResourceParameters,
ResourceUriType.PreviousPage
) : null;
var nextPageLink = touristRoutesFromRepo.HasNext ?
GenerateTouristRouteResourceUrl(
parameters,
paginationResourceParameters,
ResourceUriType.NextPage
) : null;
var paginationMetadata = new
{
previousPageLink,
nextPageLink,
totalCount = touristRoutesFromRepo.TotalCount,
pageSize = touristRoutesFromRepo.PageSize,
currentPage = touristRoutesFromRepo.CurrentPage,
totalPages = touristRoutesFromRepo.TotalPages
};
Response.Headers.Add("x-pagination", JsonConvert.SerializeObject(paginationMetadata));
bool isHateoas = parsedMediaType.SubTypeWithoutSuffix.EndsWith("hateoas", StringComparison.InvariantCultureIgnoreCase);
var primaryMediaType = isHateoas
? parsedMediaType.SubTypeWithoutSuffix.Substring(0, parsedMediaType.SubTypeWithoutSuffix.Length - 8)
: parsedMediaType.SubTypeWithoutSuffix;
//var touristRoutesDto = _mapper.Map<IEnumerable<TouristRouteDto>>(touristRoutesFromRepo);
//var shapedDtoList = touristRoutesDto.ShapeData(parameters.Fields);
IEnumerable <object> touristRoutesDto;
IEnumerable <ExpandoObject> shapedDtoList;
if (primaryMediaType == "vnd.ivan.touristRoute.simplify")
{
touristRoutesDto = _mapper.Map <IEnumerable <TouristRouteSimplifyDto> >(touristRoutesFromRepo);
shapedDtoList = ((IEnumerable <TouristRouteSimplifyDto>)touristRoutesDto).ShapeData(parameters.Fields);
}
else
{
touristRoutesDto = _mapper.Map <IEnumerable <TouristRouteDto> >(touristRoutesFromRepo);
shapedDtoList = ((IEnumerable <TouristRouteDto>)touristRoutesDto).ShapeData(parameters.Fields);
}
if (isHateoas)
{
var linkDto = CreateLinksForTouristRouteList(parameters, paginationResourceParameters);
var shapedDtoWithLinkedList = shapedDtoList.Select(t =>
{
var touristDictionary = t as IDictionary <string, object>;
var links = CreateLinkForTouristRoute(
(Guid)touristDictionary["Id"],
null);
touristDictionary.Add("links", links);
return(touristDictionary);
});
var result = new
{
value = shapedDtoWithLinkedList,
links = linkDto
};
return(Ok(result));
}
return(Ok(shapedDtoList));
}