private IQueryable <Arrangement> ApplyFilter(
IQueryable <Arrangement> arrangements,
ArrangementSearchContext searchContext)
{
if (searchContext.Complexity.HasValue)
{
arrangements = arrangements.Where(e => e.Complexity >= searchContext.Complexity.Value);
}
if (searchContext.DateTime.HasValue)
{
arrangements = arrangements.Where(e => e.DateTime >= searchContext.DateTime.Value);
}
if (searchContext.IsHandled.HasValue)
{
arrangements = arrangements.Where(e => e.IsHandled == searchContext.IsHandled.Value);
}
if (searchContext.PersonId.HasValue)
{
arrangements = arrangements.Where(e => e.PersonId == searchContext.PersonId.Value);
}
if (searchContext.SubjectId.HasValue)
{
arrangements = arrangements.Where(e => e.SubjectId == searchContext.SubjectId.Value);
}
return(arrangements.Include(e => e.TagArrangements));
}
public async Task <List <ViewArrangementDto> > GetAsync(ArrangementSearchContext searchContext)
{
IEnumerable <Tag> filtrationTags;
searchContext = searchContext ?? ArrangementSearchContext.Empty();
if (searchContext.Tags != null)
{
filtrationTags = _context.Tags.Where(e => searchContext.Tags.Contains(e.Content)).Include(e => e.TagArrangements).ToList();
}
else
{
filtrationTags = _context.Tags.Include(e => e.TagArrangements).ToList();
}
var arrangements = await ApplyFilter(_context.Arrangements.AsQueryable(), searchContext).ToListAsync();
var peopleIdDistinct = arrangements.Select(e => e.PersonId).Distinct();
var subjectsIdDistinct = arrangements.Select(e => e.SubjectId).Distinct();
var tagIds = arrangements.SelectMany(e => e.TagArrangements.Select(q => q.TagId)).Distinct();
var people = await _personService.GetAsync(e => peopleIdDistinct.Contains(e.Id));
var subjects = await _subjectService.GetAsync(e => subjectsIdDistinct.Contains(e.Id));
var tags = await _tagService.GetAsync(e => tagIds.Contains(e.Id));
return(arrangements.Select(arrangement => new ViewArrangementDto()
{
DateTime = arrangement.DateTime,
Complexity = arrangement.Complexity,
Id = arrangement.Id,
IsHandled = arrangement.IsHandled,
Subject = subjects.First(e => e.Id == arrangement.SubjectId).Name,
SelectedPerson = people.First(e => e.Id == arrangement.PersonId).AlternativeEgo,
Tags = tags.Where(t => tags.Select(e => e.Id).Intersect(arrangement.TagArrangements.Select(q => q.TagId)).Contains(t.Id)).Select(e => e.Content)
}).AsQueryable().OrderBy(searchContext.OrderByCriterion).ToList());
}