/// <summary>
/// 获取最短距离的分店
/// </summary>
/// <param name="session"></param>
/// <param name="loc">地址</param>
/// <param name="maxDist">最长距离</param>
/// <returns></returns>
public static Department GetMinDistDept(ISession session, TbLocation loc, double maxDist)
{
Department retVal = null;
double minDest = double.MaxValue;
string addrCode = loc.AddrCode;
string paddrCode = "";
//如果达到街道级别
if (addrCode.Length >= 9)
{
//获取上级地址码
paddrCode = addrCode.Substring(0, 6);
}
else
{
//获取当级地址码
paddrCode = addrCode;
}
ICriteria criteria=session.CreateCriteria(typeof(Department));
//模糊查找当前代码
ICriterion criterion = Restrictions.Or(
Restrictions.Eq("AddrCode", addrCode),
Restrictions.Like("AddrCode", paddrCode+"%")
);
criteria.Add(criterion);
criterion = Restrictions.Eq("Del", false);
criteria.Add(criterion);
criteria.AddOrder(Order.Desc("AddrCode"));
criteria.SetCacheable(true);
IList<Department> depts = criteria.List<Department>();
foreach (Department dept in depts)
{
//如果地址相同则返回该商店
if (dept.Lat == loc.Lat && dept.Lng == loc.Lng)
{
retVal = dept;
break;
}
else
{
//计算距离
double dest = LocationUtil.GetDistance(dept.Lat, dept.Lng, loc.Lat, loc.Lng);
//取最短距离的分店
if (dest<=maxDist && dest < minDest)
{
minDest = dest;
retVal = dept;
}
}
}
return retVal;
}
/// <summary>
/// 获取最短距离的分店
/// </summary>
/// <param name="hibernateOper"></param>
/// <param name="loc">地址</param>
/// <param name="maxDist">最长距离</param>
/// <returns></returns>
public static Department GetMinDistDept(IHibernateOper hibernateOper, TbLocation loc,double maxDist)
{
Department retVal = null;
Exec(hibernateOper,
delegate(ISession s)
{
//查找地址码
retVal = GetMinDistDept(s, loc, maxDist);
}
);
return retVal;
}
/// <summary>
/// 获取最短距离的分店
/// </summary>
/// <param name="session"></param>
/// <param name="loc">地址</param>
/// <returns></returns>
public static Department GetMinDistDept(ISession session, TbLocation loc)
{
return GetMinDistDept(session,loc,double.MaxValue);
}
/// <summary>
/// 获取最短距离的分店
/// </summary>
/// <param name="hibernateOper"></param>
/// <param name="loc">地址</param>
/// <returns></returns>
public static Department GetMinDistDept(IHibernateOper hibernateOper, TbLocation loc)
{
return GetMinDistDept(hibernateOper,loc,double.MaxValue);
}