C# 使用Azure DocumentDB并将对象添加到文档
我正在开发一个库应用程序,也就是说,它必须连接到Azure DocumentDB。在我的DocumentDB中,我有一个DocumentCollection,即BookCollection和一个Document-BookDocument。每次向系统中添加新书时,都必须使用新书对象更新此文档,我的问题是:我如何做到这一点?到目前为止,我有:C# 使用Azure DocumentDB并将对象添加到文档,c#,azure-cosmosdb,C#,Azure Cosmosdb,我正在开发一个库应用程序,也就是说,它必须连接到Azure DocumentDB。在我的DocumentDB中,我有一个DocumentCollection,即BookCollection和一个Document-BookDocument。每次向系统中添加新书时,都必须使用新书对象更新此文档,我的问题是:我如何做到这一点?到目前为止,我有: public static async Task AddBook(Book newBook) { using (_client = new DocumentC
public static async Task AddBook(Book newBook)
{
using (_client = new DocumentClient(new Uri(_endPointURL),_authKey))
{
Database database = (from db in _client.CreateDatabaseQuery()
where db.Id == "BookAssignment"
select db).AsEnumerable().FirstOrDefault();
Console.WriteLine("Connected to Database: " + database.Id);
//Create collection
string dbCollectionBooks = "Books";
DocumentCollection dbCollection =
(from collections in _client.CreateDocumentCollectionQuery(database.SelfLink)
where collections.Id == dbCollectionBooks
select collections).AsEnumerable().FirstOrDefault();
if (dbCollection == null)
{
dbCollection =
await
_client.CreateDocumentCollectionAsync(database.SelfLink,
new DocumentCollection() {Id = dbCollectionBooks});
}
Console.WriteLine("Connected to DocumentCollection" + dbCollection.Id);
//Document
string doucmentID = "BookDocument";
Document document = (from documents in _client.CreateDocumentQuery(database.SelfLink)
where documents.Id == doucmentID
select documents).AsEnumerable().FirstOrDefault();
if (document == null)
{
var _newBook = new Book();
_newBook.Bookcase.Category = newBook.Bookcase.Category;
_newBook.ISBN = newBook.ISBN;
_newBook.Title = newBook.Title;
_newBook.Author = newBook.Author;
_newBook.RealeaseDate = newBook.RealeaseDate;
_newBook.Colour = newBook.Colour;
_newBook.Genre = newBook.Genre;
document = await _client.CreateDocumentAsync(dbCollection.SelfLink, _newBook);
BookContainer.Add(_newBook);
}
}
}
看起来您正在寻找replaceDocumentSync方法 你的电话看起来像 等待client.ReplaceDocumentAsync(document.SelfLink,_newBook) 请记住,如果需要在更新现有文档之前检查其某些属性,您还可以创建具有特定类型(例如Book)的文档查询