/// <summary>
/// 得到远程查询条件
/// </summary>
/// <param name="infos"></param>
/// <param name="remoteQuery"></param>
/// <param name="property"></param>
/// <returns></returns>
protected virtual QueryInfo GetRemoteQuery(IEnumerable <EntityInfo> infos, RemoteQueryInfo remoteQuery, OrmPropertyInfo property)
{
var query = new QueryInfo {
SelectExp = remoteQuery.SelectExp, Parameters = remoteQuery.Parameters, OrderByExp = remoteQuery.OrderByExp
};
var pName = "_Ids";
var ids =
(from object info in infos select info.GetProperty(property.Map.ObjectProperty.PropertyName)).ToArray();
query.Where(string.Format("@{0}.Contains({1})", pName, property.Map.MapObjectProperty.PropertyName))
.SetParameter(pName, ids);
if (!string.IsNullOrEmpty(remoteQuery.WhereExp))
{
query.WhereExp = string.Format("{0} && {1}", query.WhereExp, remoteQuery.WhereExp);
}
if (!string.IsNullOrEmpty(query.SelectExp))
{
query.SelectExp = string.Format("{0},{1}", property.Map.MapObjectProperty.PropertyName,
query.SelectExp);
}
return(query);
}
/// <summary>
/// 得到延迟的加载条件
/// </summary>
/// <param name="infos"></param>
/// <param name="remoteQuery"></param>
/// <param name="property"></param>
/// <returns></returns>
protected virtual IList <EntityInfo> GetRemoteInfos(IEnumerable <EntityInfo> infos, RemoteQueryInfo remoteQuery,
OrmPropertyInfo property)
{
var query = GetRemoteQuery(infos, remoteQuery, property);
var remoteInfos = GetInfos <IList <EntityInfo> >(property.Map.GetMapObject(), query, null);
return(remoteInfos);
}