public IEnumerable <TEntity> GetAll()
{
// Note that here I've repeated Context.Set<TEntity>() in every method and this is causing
// too much noise. I could get a reference to the DbSet returned from this method in the
// constructor and store it in a private field like _entities. This way, the implementation
// of our methods would be cleaner:
//
// _entities.ToList();
// _entities.Where();
// _entities.SingleOrDefault();
//
// I didn't change it because I wanted the code to look like the videos. But feel free to change
// this on your own.
return(CurrentDbSet.Cast <TEntity>().ToList());
}
public TEntity SingleOrDefault(Expression <Func <TEntity, bool> > predicate)
{
return(CurrentDbSet.Cast <TEntity>().SingleOrDefault(predicate));
}
public IEnumerable <TEntity> Find(Expression <Func <TEntity, bool> > predicate)
{
return(CurrentDbSet.Cast <TEntity>().Where(predicate));
}
public TEntity Get(int id)
{
// Here we are working with a DbContext, not PlutoContext. So we don't have DbSets
// such as Courses or Authors, and we need to use the generic Set() method to access them.
return(CurrentDbSet.Cast <TEntity>().Find(id));
}