protected virtual async Task <double> RecalcRatingsAsync(Guid entityId)
{
var ratingsExist = await RatingsSource.AnyAsync(link => link.EntityId == entityId);
var avg = ratingsExist
? await RatingsSource
.Where(link => link.EntityId == entityId)
.Select(link => link.Rating)
.AverageAsync()
: 0;
var entity = await EntitiesSource.FirstOrDefaultAsync(p => p.Id == entityId);
entity.EntityInfo.Rating = avg;
SaveChangedState(entity);
return(avg);
}
public virtual int EntitiesCount()
{
return(EntitiesSource.Count());
}
public virtual T GetEntity(Guid entityId)
{
return(EntitiesSource.FirstOrDefault(e => e.Id == entityId));
}
public virtual IEnumerable <T> GetEntities(int quantity, int skip = 0)
{
return(EntitiesSource.Skip(skip).Take(quantity));
}
