public async Task <ActionResult <IEnumerable <AgencyDto> > > GetAgencies(
[FromQuery] AgenciesParam agenciesParameters)
{
if (!_propertyMappingService.ValidMappingExistsFor <AgencyDto, Agency>
(agenciesParameters.OrderBy))
{
return(BadRequest());
}
var agenciesFromRepo = await _AgenciesRepo.GetAgencies(agenciesParameters);
var previousPageLink = agenciesFromRepo.HasPrevious ?
CreateAgenciesResourceUri(agenciesParameters,
ResourceUriType.PreviousPage) : null;
var nextPageLink = agenciesFromRepo.HasNext ?
CreateAgenciesResourceUri(agenciesParameters,
ResourceUriType.NextPage) : null;
Response.AddPagination(agenciesFromRepo.CurrentPage, agenciesFromRepo.PageSize, agenciesFromRepo.TotalCount,
agenciesFromRepo.TotalPages, previousPageLink, nextPageLink);
return(Ok(_mapper.Map <IEnumerable <AgencyDto> >(agenciesFromRepo)));
}
public async Task <PagedList <Agency> > GetAgencies(AgenciesParam agenciesParameters)
{
if (agenciesParameters == null)
{
throw new ArgumentNullException(nameof(agenciesParameters));
}
var collection = _context.Agencies as IQueryable <Agency>;
if (!string.IsNullOrWhiteSpace(agenciesParameters.Ministry))
{
var ministry = agenciesParameters.Ministry.Trim();
collection = collection.Where(a => a.Ministry.Contains(ministry));
}
if (!string.IsNullOrWhiteSpace(agenciesParameters.SearchQuery))
{
var searchQuery = agenciesParameters.SearchQuery.Trim();
collection = collection.Where(a => a.Ministry.Contains(searchQuery) ||
a.Name.Contains(searchQuery));
}
if (!string.IsNullOrWhiteSpace(agenciesParameters.OrderBy))
{
// get property mapping dictionary
var agencyPropertyMappingDictionary =
_propertyMappingService.GetPropertyMapping <AgencyDto, Agency>();
collection = collection.ApplySort(agenciesParameters.OrderBy,
agencyPropertyMappingDictionary);
}
return(await PagedList <Agency> .CreateAsync(collection, agenciesParameters.PageNumber, agenciesParameters.PageSize));
}
private string CreateAgenciesResourceUri(
AgenciesParam agenciesParameters,
ResourceUriType type)
{
switch (type)
{
case ResourceUriType.PreviousPage:
return(Url.Link("GetAgencies",
new
{
orderBy = agenciesParameters.OrderBy,
pageNumber = agenciesParameters.PageNumber - 1,
pageSize = agenciesParameters.PageSize,
mainCategory = agenciesParameters.Ministry,
searchQuery = agenciesParameters.SearchQuery
}));
case ResourceUriType.NextPage:
return(Url.Link("GetAgencies",
new
{
orderBy = agenciesParameters.OrderBy,
pageNumber = agenciesParameters.PageNumber + 1,
pageSize = agenciesParameters.PageSize,
mainCategory = agenciesParameters.Ministry,
searchQuery = agenciesParameters.SearchQuery
}));
default:
return(Url.Link("GetAgencies",
new
{
orderBy = agenciesParameters.OrderBy,
pageNumber = agenciesParameters.PageNumber,
pageSize = agenciesParameters.PageSize,
mainCategory = agenciesParameters.Ministry,
searchQuery = agenciesParameters.SearchQuery
}));
}
}