Question

我有一个IndexedDB，用于存储所有购物车订单。结帐时，购物车需要清空。我试图遍历每个订单并删除，但是不知何故，只有第一个订单被删除了。这是我的代码：

const clear_cart = () => {
    let objectCart = db.transaction('cart').objectStore('cart');

    objectCart.openCursor().onsuccess = function(e){
        let cursor = e.target.result;
        if(cursor){
           let cartId = cursor.value.id;

           let transaction = db.transaction(['cart'], 'readwrite');
           let objectToDelete = transaction.objectStore('cart');
           let request = objectCart.objectToDelete(cartId);

           transaction.oncomplete = () => {
                console.log(`cart ${cartId} is deleted!`);
           }

           cursor.continue();
        }
    }
}

Answer 1

我对dmigo的建议做了一些调整，这解决了我的问题。这是代码

const clear_cart = () => {
    let objectCart = db.transaction('cart').objectStore('cart');

    let transaction = db.transaction(['cart'], 'readwrite');
    let objectToDelete = transaction.objectStore('cart');

    objectToDelete.clear().onsuccess = function(e){
        console.log(`the cart is clear!`);
    }
}

Answer 2

我会尝试objectStore中的clear method。

const clear_cart = () => {
    let objectCart = db.transaction(['cart'], 'readwrite').objectStore('cart');

    objectCart.clear().onsuccess = function(e){
        console.log(`the cart is clear!`);
    }
}

如何删除IndexedDB中的所有记录

2 个答案: