/// <summary>对指定字段使用实体缓存</summary> /// <param name="field"></param> public FieldCache(FieldItem field) { WaitFirst = false; Expire = 10 * 60; FillListMethod = () => { return(Entity <TEntity> .FindAll(_field.GroupBy(), _Unique.Desc(), _Unique.Count()& _field, 0, MaxRows)); }; _field = field; { var tb = field.Table; var id = tb.Identity; if (id == null && tb.PrimaryKeys != null && tb.PrimaryKeys.Length == 1) { id = tb.PrimaryKeys[0]; } if (id == null) { throw new Exception("{0}缺少唯一主键,无法使用缓存".F(tb.TableName)); } _Unique = id; } }
/// <summary>对指定字段使用实体缓存</summary> /// <param name="field"></param> public FieldCache(FieldItem field) { WaitFirst = false; Expire = 10 * 60; FillListMethod = () => { // 根据数量降序 var id = field.Table.Identity; return(Entity <TEntity> .FindAll(field.GroupBy(), id.Desc(), id.Count()& field, 0, MaxRows)); }; _field = field; }