javascript - Lawnchair-IndexedDB 不支持多条记录

Question

我尝试在 indexed-db 中创建多个记录，但它不允许我，例如，nike 和 adidas objectStores

var nike = Lawnchair({adapter:'indexed-db', name:'stores', record:'nike'},function(e){
    console.log("nike store open");
    this.save({id:1}, function(data){
        console.log('nike data: ', data);
    });
});

var adidas = Lawnchair({adapter:'indexed-db', name:'stores', record:'adidas'},function(e){
    console.log("adidas store open");
    this.save({id:1}, function(data){
        console.log('adidas data: ', data);
    });
});

我想这就是在 indexed-db 中创建多条记录的方法。它实际上发生在 request.onupgradeneeded。请参阅下面的代码。

// Handle datastore upgrades.
request.onupgradeneeded = function(e) {
    var db = e.target.result;

    var nike = db.createObjectStore('nike');
    var adidas = db.createObjectStore('adidas');
};

如果我无法创建 adidas 记录，这实际上是访问它时抛出的错误。

[Exception... "The operation failed because the requested database object could not be found. For example, an object store did not exist but was being opened." code: "8" ...]

Answer 1

Lawnchair 专为无模式用例而设计。为每个 Lawnchair 实例使用单独的数据库。

如果你真的需要一个数据库中的多个表，你可以使用其他库，比如我自己的 ydn-db。