public async Task Test_UpdateByQueryAsync()
{
using var scope = ServiceProvider.CreateScope();
var resp = scope.ServiceProvider.GetService <IEsRepository <StudentSample> >();
var student = _students.First();
await resp.InsertAsync(student);
// 需要延迟一下
await Task.Delay(1000);
var descriptor = new UpdateByQueryDescriptor <StudentSample>();
descriptor
.Script(s => s
.Source("ctx._source.name='隔壁老王八'")
.Lang("painless"))
.Query(q => q
.Term(r => r
.Field(f => f.StudentId)
.Value(student.StudentId)));
await resp.UpdateByQueryAsync(descriptor);
var result = await resp.FindByIdAsync(student.StudentId);
Assert.Equal("隔壁老王八", result.Name);
await resp.DeleteAsync(student);
}
/// <summary>
/// 按查询条件更新
/// </summary>
/// <param name="descriptor">查询更新描述符</param>
/// <param name="cancellationToken">取消令牌</param>
public async Task UpdateByQueryAsync(UpdateByQueryDescriptor <TEntity> descriptor, CancellationToken cancellationToken = default)
{
var indexName = Helper.SafeIndexName <TEntity>(IndexName);
descriptor = descriptor.Index(Context.GetIndexName(IndexName));
Func <UpdateByQueryDescriptor <TEntity>, IUpdateByQueryRequest> selector = x => descriptor;
var response = await Context.UpdateByQueryAsync(selector, cancellationToken);
if (!response.IsValid)
{
throw new ElasticsearchException($"索引[{indexName}]更新数据失败 : {response.ServerError.Error.Reason}");
}
}
/// <summary>生成按查询更新请求</summary>
private IUpdateByQueryRequest UseUpdateQuery(UpdateByQueryDescriptor <TIndexType> updateDescriptor, IndexSaveRequest request)
{
var resourceKeys = request.Metadatas.Select(e => e.ResourceKey).ToArray();
updateDescriptor
.Type(this.IndexType)
.Query(queryDescriptor => queryDescriptor
.Terms(e => e
.Field(f => f[MetadataConsts.ResourceKey])
.Terms(resourceKeys)
)
);
return(updateDescriptor);
}
