public void Add(T entity, bool isSaved = true)
{
if (string.IsNullOrEmpty(entity.Id))
{
entity.Id = Guid.NewGuid().ToString();
}
_context.Set <T>().Add(entity);
if (isSaved)
{
_context.SaveChanges();
}
_context.Entry(entity).State = EntityState.Detached;
}
///// <summary>
///// 得到分页记录
///// </summary>
///// <param name="pageindex">The pageindex.</param>
///// <param name="pagesize">The pagesize.</param>
///// <param name="orderby">排序，格式如："Id"/"Id descending"</param>
//public IQueryable<T> Find<T>(int pageindex, int pagesize, string orderby = "", Expression<Func<T, bool>> exp = null) where T : class
//{
// if (pageindex < 1) pageindex = 1;
// if (string.IsNullOrEmpty(orderby))
// orderby = "Id descending";
// return Filter(exp).OrderBy(orderby).Skip(pagesize * (pageindex - 1)).Take(pagesize);
//}
///// <summary>
///// 根据过滤条件获取记录数
///// </summary>
//public int GetCount<T>(Expression<Func<T, bool>> exp = null) where T : class
//{
// return Filter(exp).Count();
//}
//public void Add<T>(T entity) where T : Entity
//{
// if (string.IsNullOrEmpty(entity.Id))
// {
// entity.Id = Guid.NewGuid().ToString();
// }
// _context.Set<T>().Add(entity);
//}
///// <summary>
///// 批量添加
///// </summary>
///// <param name="entities">The entities.</param>
//public void BatchAdd<T>(T[] entities) where T : Entity
//{
// foreach (var entity in entities)
// {
// entity.Id = Guid.NewGuid().ToString();
// }
// _context.Set<T>().AddRange(entities);
//}
//public void Update<T>(T entity) where T:class
//{
// var entry = this._context.Entry(entity);
// entry.State = EntityState.Modified;
// //如果数据没有发生变化
// if (!this._context.ChangeTracker.HasChanges())
// {
// entry.State = EntityState.Unchanged;
// }
//}
//public void Delete<T>(T entity) where T:class
//{
// _context.Set<T>().Remove(entity);
//}
///// <summary>
///// 实现按需要只更新部分更新
///// <para>如：Update(u =>u.Id==1,u =>new User{Name="ok"});</para>
///// </summary>
///// <param name="where">The where.</param>
///// <param name="entity">The entity.</param>
//public void Update<T>(Expression<Func<T, bool>> where, Expression<Func<T, T>> entity) where T:class
//{
// _context.Set<T>().Where(where).Update(entity);
//}
//public virtual void Delete<T>(Expression<Func<T, bool>> exp) where T : class
//{
// _context.Set<T>().RemoveRange(Filter(exp));
//}
public bool Save()
{
//try
//{
return(_context.SaveChanges() > 0);
//}
//catch (DbEntityValidationException e)
//{
// throw new Exception(e.EntityValidationErrors.First().ValidationErrors.First().ErrorMessage);
//}
}