private string CreateMoviePageURI(MovieResourceParameters parameters, PageState pageState)
{
urlHelper.Request = ActionContext.Request;
switch (pageState)
{
case PageState.PreviousPage:
return(urlHelper.Link("GetMoviesInPage", new
{
PageNumber = parameters.PageNumber - 1,
PageSize = parameters.PageSize
}));
case PageState.NextPage:
return(urlHelper.Link("GetMoviesInPage", new
{
PageNumber = parameters.PageNumber + 1,
PageSize = parameters.PageSize
}));
case PageState.CurrentPage:
return(urlHelper.Link("GetMoviesInPage", new
{
PageNumber = parameters.PageNumber,
PageSize = parameters.PageSize
}));
default:
return(null);
}
}
public IHttpActionResult GetMovies([FromUri] MovieResourceParameters parameters)
{
if (parameters == null)
{
parameters = new MovieResourceParameters();
}
var page = UOW.Movies.GetMovieInPage(parameters);
var currentLink = CreateMoviePageURI(parameters, PageState.CurrentPage);
var previousLink = page.HasPrevious ? CreateMoviePageURI(parameters, PageState.PreviousPage) : null;
var nextLink = page.HasNext ? CreateMoviePageURI(parameters, PageState.NextPage) : null;
var locationHeader = new
{
totalCount = page.TotalCount,
currntPageNumber = page.CurrentPage,
pageSize = page.PageSize,
countInPage = page.PageCount,
currentPageLink = currentLink,
previousPageLink = previousLink,
nextPageLink = nextLink,
};
//var movies = UOW.Movies.GetAll();
var movieDTos = Mapper.MoviesDtosFromMovies(page);
ActionContext.Response = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ObjectContent(typeof(IEnumerable <GetMovieDTO>), movieDTos, ActionContext.ActionDescriptor.Configuration.Formatters.JsonFormatter)
};
ActionContext.Response.Headers.Add("X-Pagination", Newtonsoft.Json.JsonConvert.SerializeObject(locationHeader));
return(ResponseMessage(ActionContext.Response));
}
public PageList <Movie> GetMovieInPage(MovieResourceParameters movieResource)
{
var orderedExtendedQuery = Entities
.OrderBy(m => m.Name)
.ThenBy(m => m.Rate).AsQueryable();
if (!string.IsNullOrWhiteSpace(movieResource.Genre))
{
var genre = movieResource.Genre.ToLower();
orderedExtendedQuery = orderedExtendedQuery.Where(m => m.Genre.ToLower() == genre);
}
if (!string.IsNullOrWhiteSpace(movieResource.rateop))
{
var rateopArray = movieResource.rateop.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries);
var opearion = rateopArray[0];
int.TryParse(rateopArray[1], out int rate);
if (rate > 0)
{
switch (opearion)
{
case ">":
orderedExtendedQuery = orderedExtendedQuery
.Where(m => m.Rate > rate);
break;
case "<":
orderedExtendedQuery = orderedExtendedQuery
.Where(m => m.Rate < rate);
break;
case ">=":
orderedExtendedQuery = orderedExtendedQuery
.Where(m => m.Rate >= rate);
break;
case "<=":
orderedExtendedQuery = orderedExtendedQuery
.Where(m => m.Rate <= rate);
break;
case "=":
orderedExtendedQuery = orderedExtendedQuery
.Where(m => m.Rate == rate);
break;
}
}
}
if (movieResource.Rate > 0)
{
orderedExtendedQuery = orderedExtendedQuery.Where(m => m.Rate == movieResource.Rate);
}
var page = orderedExtendedQuery
.Skip(movieResource.PageNumber * movieResource.PageSize - (movieResource.PageSize))
.Take(movieResource.PageSize)
.ToList();
return(new PageList <Movie>(page, Entities.Count(), movieResource.PageNumber, movieResource.PageSize));
}
