public IActionResult GetAllPost(StudentResourceParameters studentResourceParameters)
{
var listOfPost = _unitOfWork.StudentRepository.GetAllStudents(studentResourceParameters);
var listOfDtos = Mapper.Map <List <StudentDTO> >(listOfPost);
var previousPageLink = listOfPost.HasPrevious
? CreateStudentResourceUri(studentResourceParameters,
ResourceUriType.PreviousPage)
: null;
var nextPageLink = listOfPost.HasNext
? CreateStudentResourceUri(studentResourceParameters,
ResourceUriType.NextPage)
: null;
var paginationMetadata = new PaginationHeader
{
PreviousPageLink = previousPageLink,
NextPageLink = nextPageLink,
TotalCount = listOfPost.TotalCount,
PageSize = listOfPost.PageSize,
CurrentPage = listOfPost.CurrentPage,
TotalPages = listOfPost.TotalPages
};
Response.Headers.Add("X-Pagination",
Newtonsoft.Json.JsonConvert.SerializeObject(paginationMetadata));
return(Ok(listOfDtos));
}
public async Task <ActionResult> GetStudents([FromQuery] StudentResourceParameters pagedResourceParameters, CancellationToken ct)
{
var studentDtos = await _studentService.GetStudentsAsync(pagedResourceParameters, ct);
var previousPageLink = studentDtos.HasPrevious ? CreateDataflowsResourceUri(pagedResourceParameters, Enums.ResourceUriType.PreviousPage) : null;
var nextPageLink = studentDtos.HasNext ? CreateDataflowsResourceUri(pagedResourceParameters, Enums.ResourceUriType.NextPage) : null;
var paginationMetadata = new
{
totalCount = studentDtos.TotalCount,
pageSize = studentDtos.PageSize,
currentPage = studentDtos.CurrentPage,
totalPages = studentDtos.TotalPages,
previousPageLink,
nextPageLink
};
if (studentDtos == null)
{
return(NotFound());
}
Response.Headers.Add("X-Pagination", JsonConvert.SerializeObject(paginationMetadata));
return(Ok(studentDtos));
}
private string CreateStudentResourceUri(
StudentResourceParameters authorsResourceParameters,
ResourceUriType type)
{
switch (type)
{
case ResourceUriType.PreviousPage:
return(_urlHelper.Link("GetBooks",
new
{
pageNumber = authorsResourceParameters.PageNumber - 1,
pageSize = authorsResourceParameters.PageSize
}));
case ResourceUriType.NextPage:
return(_urlHelper.Link("GetBooks",
new
{
pageNumber = authorsResourceParameters.PageNumber + 1,
pageSize = authorsResourceParameters.PageSize
}));
case ResourceUriType.Current:
default:
return(_urlHelper.Link("GetBooks",
new
{
pageNumber = authorsResourceParameters.PageNumber,
pageSize = authorsResourceParameters.PageSize
}));
}
}
private string CreateDataflowsResourceUri(StudentResourceParameters pagedResourceParameters, Enums.ResourceUriType type)
{
switch (type)
{
case Enums.ResourceUriType.PreviousPage:
return(_linkGenerator.GetUriByName(this.HttpContext, "GetStudents",
new
{
status = pagedResourceParameters.Status,
searchQuery = pagedResourceParameters.SearchQuery,
pageNumber = pagedResourceParameters.PageNumber - 1,
pageSize = pagedResourceParameters.PageSize
})); // TODO get the aboslute path
case Enums.ResourceUriType.NextPage:
return(_linkGenerator.GetUriByName(this.HttpContext, "GetStudents",
new
{
status = pagedResourceParameters.Status,
searchQuery = pagedResourceParameters.SearchQuery,
pageNumber = pagedResourceParameters.PageNumber + 1,
pageSize = pagedResourceParameters.PageSize
}));
default:
return(_linkGenerator.GetUriByName(this.HttpContext, "GetStudents",
new
{
status = pagedResourceParameters.Status,
searchQuery = pagedResourceParameters.SearchQuery,
pageNumber = pagedResourceParameters.PageNumber,
pageSize = pagedResourceParameters.PageSize
}));
}
}
public async Task <PagedList <StudentDto> > GetStudentsAsync(StudentResourceParameters resourceParameters, CancellationToken ct)
{
var studentEntities = _uow.Students.GetAll();
/*if (!string.IsNullOrEmpty(resourceParameters.Status))
* {
* if (Enum.TryParse(resourceParameters.Status, true, out DataflowStatus status))
* {
* studentEntities = studentEntities.Where(a => a.Status == status);
* }
* }*/
if (!string.IsNullOrEmpty(resourceParameters.SearchQuery))
{
var searchQueryForWhereClause = resourceParameters.SearchQuery.Trim().ToLowerInvariant();
studentEntities = studentEntities
.Where(a => a.Code.ToLowerInvariant().Contains(searchQueryForWhereClause) ||
a.FirstName.ToLowerInvariant().Contains(searchQueryForWhereClause) ||
a.LastName.ToLowerInvariant().Contains(searchQueryForWhereClause));
}
var pagedListEntities = await PagedList <Student> .CreateAsync(studentEntities,
resourceParameters.PageNumber, resourceParameters.PageSize, ct);
var result = _mapper.Map <PagedList <StudentDto> >(pagedListEntities);
result.TotalCount = pagedListEntities.TotalCount;
result.TotalPages = pagedListEntities.TotalPages;
result.CurrentPage = pagedListEntities.CurrentPage;
result.PageSize = pagedListEntities.PageSize;
return(result);
}
public void ShouldNotNull()
{
var resource = new StudentResourceParameters();
resource.PageSize = 20;
var controller = new StudentsController(_unitOfWork, _urlHelper)
{
ControllerContext = new ControllerContext()
{
HttpContext = httpContext
}
};
var sut = controller.GetAllPost(resource);
var result = Assert.IsType <OkObjectResult>(sut);
Assert.IsType <List <StudentDTO> >(result.Value);
Assert.NotNull(sut);
}
public void ShouldReturnCorrectSize()
{
var resource = new StudentResourceParameters();
resource.PageSize = 15;
resource.PageNumber = 2;
var controller = new StudentsController(_unitOfWork, _urlHelper)
{
ControllerContext = new ControllerContext()
{
HttpContext = httpContext
}
};
var sut = controller.GetAllPost(resource);
var okResult = Assert.IsType <OkObjectResult>(sut);
var returnObject = Assert.IsType <List <StudentDTO> >(okResult.Value);
Assert.Equal(StudentResourceParameters.maxPageSize, returnObject.Count);
Assert.True(!returnObject.Contains(Mapper.Map <StudentDTO>(_randomStudent[1])));
AssertObjects.PropertyValuesAreEquals(returnObject[0], Mapper.Map <StudentDTO>(_randomStudent[10]));
}
public void ShouldReturnCorrectItem()
{
var resource = new StudentResourceParameters();
resource.PageSize = 15;
resource.PageNumber = 1;
resource.Name = "N";
var controller = new StudentsController(_unitOfWork, _urlHelper)
{
ControllerContext = new ControllerContext()
{
HttpContext = httpContext
}
};
var sut = controller.GetAllPost(resource);
var okResult = Assert.IsType <OkObjectResult>(sut);
var returnObject = Assert.IsType <List <StudentDTO> >(okResult.Value);
Assert.True(returnObject.All(x => x.Name.ToUpperInvariant().Contains(resource.Name.ToUpperInvariant())));
}
