private string CreatePageLink(UserTaskPage taskPage, GetUserTasksParameters parameters, int offset)
{
if (offset > 0 && !taskPage.HasNextPage)
{
return(null);
}
if (offset < 0 && !taskPage.HasPreviousPage)
{
return(null);
}
var routeValues = new
{
PageSize = taskPage.PageSize,
PageNumber = taskPage.CurrentPage + offset,
parameters.SearchQuery,
parameters.GroupName,
parameters.Overdue,
parameters.CreatedBy,
parameters.AssignedTo
};
string link = _urlHelper.Link(nameof(GetAllUserTasks), routeValues);
return(link);
}
public async Task <IActionResult> GetAllUserTasks(GetUserTasksParameters parameters)
{
if (parameters == null)
{
return(BadRequest());
}
if (!ModelState.IsValid)
{
return(UnprocessableEntity(ModelState));
}
User loggedOnUser = await _identityBusiness.GetUserAsync(User);
UserTaskPage taskPage = await _taskBookBusiness.GetUsersTaskByUserId(loggedOnUser.Id, parameters);
string previousPageLink = CreatePageLink(taskPage, parameters, -1);
string nextPageLink = CreatePageLink(taskPage, parameters, 1);
var metaData = new
{
taskPage.TotalCount,
taskPage.PageSize,
taskPage.TotalPages,
taskPage.CurrentPage,
previousPageLink,
nextPageLink
};
string pagingMetaDataJson = JsonConvert.SerializeObject(metaData);
Response.Headers.Add("X-PagingMetadata", pagingMetaDataJson);
var models = _mapper.Map <TaskViewModel[]>(taskPage.Tasks);
return(Ok(models));
}