indexing - RavenDB 中的条件补丁请求

Question

如何有条件地修补 RavenDB 中的文档。下面的代码只是将赞助人类型的所有文档修补为中间名首字母 = JJJ。我也想根据条件执行此操作..例如..对相同的赞助人文档类型执行相同的补丁..但仅适用于具有 City ="New York"的文档类型

store.DatabaseCommands.UpdateByIndex("Raven/DocumentsByEntityName",
                                      new IndexQuery { Query = "Tag:Patrons" },
                                      new[]
                                        {
                                             new PatchRequest
                                                 {
                                                     Type = PatchCommandType.Set,
                                                     Name = "MiddleInitial",
                                                     Value = "JJJ"                                                           
                                                 }
                                            }, allowStale: false);

Answer 1

Z field ， 您可以使用:

store.DatabaseCommands.UpdateByIndex("Patrons/ByCity",
                                      new IndexQuery { Query = "City:\"New York\"" },
                                      new[]
                                        {
                                             new PatchRequest
                                                 {
                                                     Type = PatchCommandType.Set,
                                                     Name = "MiddleInitial",
                                                     Value = "JJJ"                                                           
                                                 }
                                            }, allowStale: false);

Patrons/ByCity 指数定义为:

from p in docs.Patrons select new { p.City }