semesterWork/data/Repository/SQLGroupRepository.cs

using data.DAO;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace data.Repository
{
    public class SQLGroupRepository : IGroupRepository
    {
        public readonly RemoteDatabaseContext dbContext;
        public SQLGroupRepository(RemoteDatabaseContext remoteDatabaseContext)
        {
            dbContext = remoteDatabaseContext;
        }
        public bool addGroup(GroupDAO group)
        {
            try
            {
                dbContext.groups.Add(group);
                return dbContext.SaveChanges() > 1;
            }
            catch (Exception ex) {
                return false;
            }
        }

        public IEnumerable<GroupDAO> getAllGroup()
        {
            try
            {
                return dbContext.groups.ToList();
            }
            catch (Exception ex) { 
                return new List<GroupDAO>();
            }
        }
    }
}