jsoniq
Version:
JSONiq implementation for JavaScript
54 lines (52 loc) • 8.34 kB
JavaScript
;
class IndexedDBTransaction {
constructor(db) {
this.txs = [];
this.db = db;
}
done() {
return Promise.all(this.txs);
}
get(id) {
return new Promise((resolve, reject) => {
var segments = id.split(":");
var objectStoreName = segments[0];
var key = segments[1];
var tx = this.db.transaction(objectStoreName, "readonly");
var req = tx.objectStore(objectStoreName).get(key);
req.onsuccess = () => {
resolve(req.result);
};
req.onerror = () => {
reject(req.error);
};
});
}
put(id, item) {
var segments = id.split(":");
var objectStoreName = segments[0];
var key = segments[1];
var tx = this.db.transaction(objectStoreName, "readwrite");
this.txs.push(new Promise((resolve, reject) => {
var objectStore = tx.objectStore(objectStoreName);
objectStore.put(item, !objectStore.keyPath && objectStore["autoIncrement"] !== true ? key : undefined);
tx.oncomplete = event => { resolve(event); };
tx.onerror = event => { reject(event); };
}));
return this;
}
remove(id) {
var segments = id.split(":");
var objectStoreName = segments[0];
var key = segments[1];
var tx = this.db.transaction(objectStoreName, "readwrite");
this.txs.push(new Promise((resolve, reject) => {
tx.objectStore(objectStoreName).delete(key);
tx.oncomplete = event => { resolve(event); };
tx.onerror = event => { reject(event); };
}));
return this;
}
}
exports.default = IndexedDBTransaction;
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