我需要插入相关的订单及其相应的详细信息数据。

I need to insert data related to an Order and its corresponding Detail.

如果没有一个的ContentProvider 我会做这样的事情：

Without a ContentProvider I would do something like this:

public boolean insertOrder(Order order, ArrayList<OrderDetail> items) {
    boolean wasSuccessful = false;
    ContentValues cvOrder = new ContentValues();
    cvPedido.put(ORDER_CUSTOMER_ID, order.getCustomerId());
    cvPedido.put(ORDER_CUSTOMER_NAME, order.getCustomerName());     
    String insertQuery = "INSERT INTO " + ORDER_DETAIL_TABLE
            + " VALUES (?,?)";
    //...
    try {

        this.openWriteableDB();
        SQLiteStatement statement = db.compileStatement(insertQuery);
        db.beginTransaction();
        long idOrder = db.insertOrThrow(ORDER_TABLE, null, cvOrder);
        if (idOrder > 0) {


            for (int i = 0; i < items.size(); i++) {    
                OrderDetail detail=items.get(i);
                statement.clearBindings();
                statement.bindString(1, detail.getDescription);
                statement.bindDouble(2, detail.getPrice);
                //...
                statement.execute();
            }
            db.setTransactionSuccessful();
            wasSuccessful = true;               
        }

    } finally {
        db.endTransaction();
        this.closeDB();
    }
    return wasSuccessful;
}

现在的问题是，现在我想用一个的ContentProvider ，我不知道该怎么做这样的病例，其中约两个或多个表中的数据必须是传递给一个CRUD操作，知道插入操作只接受两个参数：

The problem is that now I want to use a ContentProvider and I don't know what to do with this kind of cases where data about two or more tables must be passed to a single CRUD operation, knowing that a insert operation only accepts two parameters :

 @Override
    public Uri insert(Uri uri, ContentValues values) {

    }

您在ContentProvider的做的时候，你必须在一个事务中插入关系数据是什么？

What do you do in a ContentProvider when you have to insert relational data in a transaction?

在此先感谢。

推荐答案

您应该使用的 ContentProviderOperation 。因为这是你的的ContentProvider 则可以保证 applyBatch（）将事务中执行的所有操作。所有标准的内容提供商也保证了这样的话。

You should use ContentProviderOperation. Since it's your ContentProvider you can assure that applyBatch() will execute all operations within a transaction. All standard content providers also ensure that that's the case.

请参阅有关ContentProviderOperation 一般我的博客职位和我对其他职位如何使用withBackReference（）来访问previous操作结果 - 您需要访问的orderId 。

See my blog post about ContentProviderOperation in general and my other post about how to use withBackReference() to access results of previous operations - which you need to access the orderId.

一个重要警告：所有的 ContentProviderOperations 一个批次都必须使用同一个部门 - 但可以使用不同的URI！你的情况应该是没有问题的。

One important caveat: All ContentProviderOperations of one batch must use the same authority - but can use different URIs! In your case that should be no problem.