public static IEnumerable <VacancyConditionalFilter> GetFilters(VacancyFilterModel model)
{
Expression <Func <Vacancy, bool> > title = v => v.Title.ToLower().Contains(model.VacancyTitle.ToLower());
Expression <Func <Vacancy, bool> > minRating = v => v.User.Profile.Rating >= model.MinRating;
Expression <Func <Vacancy, bool> > minExp = v => v.User.Profile.Experience >= model.MinExpirience;
Expression <Func <Vacancy, bool> > musiceGenres = v =>
v.VacancyFilter.JsonMusicGenres.FromJson <ICollection <MusicGenre> >()
.Any(m => model.MusicGenres.Any(m2 => m.Id == m2.Id));
Expression <Func <Vacancy, bool> > musicianRoles = v => v.VacancyFilter.JsonMusicianRoles.FromJson <ICollection <MusicianRole> >()
.Any(m => model.MusicianRoles.Any(m2 => m.Id == m2.Id));
Expression <Func <Vacancy, bool> > workTypes = v => v.VacancyFilter.JsonWorkTypes.FromJson <ICollection <WorkType> >()
.Any(m => model.WorkTypes.Any(m2 => m.Id == m2.Id));
Expression <Func <Vacancy, bool> > cities = v => v.VacancyFilter.JsonCities.FromJson <ICollection <City> >()
.Any(m => model.Cities.Any(m2 => m.Id == m2.Id));
var filters = new[]
{
model.ApplyTitle() ? new VacancyConditionalFilter(title) : null,
model.ApplyMinRating() ? new VacancyConditionalFilter(minRating): null,
model.ApplyMinExpirience() ? new VacancyConditionalFilter(minExp): null,
model.ApplyCities() ? new VacancyConditionalFilter(cities): null,
model.ApplyMusicGenres() ? new VacancyConditionalFilter(musiceGenres): null,
model.ApplyMusicianRoles() ? new VacancyConditionalFilter(musicianRoles): null,
model.ApplyWorkTypes() ? new VacancyConditionalFilter(workTypes): null
};
return(filters.Where(f => f != null));
}
public async Task <IActionResult> SearchVacancies([FromBody] VacancyFilterModel model)
{
if (_webSession.UserType == UserType.Group)
{
model.UserType = UserType.Musician;
}
else if (_webSession.UserType == UserType.Musician)
{
model.UserType = UserType.Group;
}
var filters = VacancyConditionalFilter.GetFilters(model);
var vacancies = await _crudService.Where <Vacancy>(v => !v.IsClosed && v.User.Type == model.UserType);
var foundVacancies = vacancies.ToList().Where(v => filters.All(f => f.PassFilter(v))).ToList();
return(Ok(Mapper.Map <List <VacancyModel> >(foundVacancies)));
}