mongodb c driver使用经验 连接数据库 获取mongoc_cursor_t* cursor 循环获取数据,存入bson_t constbson_t*doc =nullptr;while(mongoc_cursor_next(cursor, &doc)) 获取迭代器 上面只是获取了对应的文本,需要设置成迭代器才能使用 bson_iter_titer;if(bson_iter_init(&iter, doc)) bson_iter_init的作用就是...
"testdb","testcollection");bson_t*query=bson_new();// 创建一个空的查询mongoc_cursor_t*cursor;cursor=mongoc_collection_find_with_opts(collection,
BSON_APPEND_UTF8 (query,"hello","world"); cursor=mongoc_collection_find_with_opts (collection, query, NULL, NULL);while(mongoc_cursor_next (cursor, &doc)) { str=bson_as_canonical_extended_json (doc, NULL); printf ("%s\n", str); bson_free (str); } bson_destroy (query); mongo...
mongoc_cursor_t*cursor=mongoc_collection_find_with_opts(collection,query,NULL,NULL); constbson_t*doc; while(mongoc_cursor_next(cursor,&doc)){ char*str=bson_as_canonical_extended_json(doc,NULL); printf("%s\n",str); bson_free(str); } // 清理资源 mongoc_cursor_destroy(cursor); bson_...
if(mongoc_cursor_next(m_pCursor, &doc)) { GetRecord(doc); } else { break; } } if(mongoc_cursor_error(m_pCursor, &error)) { cout << "Query Failure: " << error.message; } mongoc_cursor_destroy(m_pCursor); 2、获取记录 ...
while (mongoc_cursor_next(cursor,&docFind)) { //方法一 bson_iter_t iter; bson_iter_init(&iter,docFind); if (bson_iter_find(&iter,"name")) { strcpy(str,bson_iter_utf8(&iter,NULL)); strtest = bson_iter_utf8(&iter,NULL); ...
while (mongoc_cursor_next (cursor, &doc)) bson_iter_t it; { bson_type_t type=bson_iter_type(&it); 浏览15提问于2016-07-07得票数 0 1回答 go mongodb FindOneAndUpdate几个字段 、 我想在mongodb中使用Go和“go.monGodb.org/mongo-驱动程序”驱动程序更新几个字段,而不需要多次执行命令。目前...
if (mongoc_cursor_next(cursor, &doc)) { // 处理找到的文档 char *str = bson_as_canonical_extended_json(doc, NULL); printf("%s\n", str); bson_free(str); } else { // 没有找到符合条件的文档 printf("No document found.\n"); } bson_destroy(query); mongoc_cursor_destroy(cursor)...
Memory leaks in mongoc_database_has_collection and mongoc_cursor_next. Report writeConcern failures from findAndModify and from legacy writes. Thanks to everyone who contributed to this release candidate. A. Jesse Jiryu Davis Hannes Magnusson ...
static void php_mongocursor_next(mongo_cursor *cursor, zval *return_value TSRMLS_DC); zend_class_entry *mongo_ce_Cursor = NULL; /* Queries the database. Returns SUCCESS or FAILURE. */ static int mongo_cursor__do_query(mongo_cursor *cursor TSRMLS_DC); #define PREITERATION_SETUP \ PHP_...