I am very new to IndexedDB Concepts. I am trying to Store a list of movies in the IndexedDB and retrieve it. But for some reason when i try to retrieve it there is a DOM IDBDatabase Exception 11 in chrome browser. I try to retrieve it by using a simple alert. I also tried to retrieve the data by putting the alert inside an onComplete event, but this too seems to be a failure. Could someone please let me know what wrong i am doing. Below is my code.
const dbName = "movies";
var request = indexedDB.open(dbName, 1);
request.onerror = function(event) {
alert("Seems like there is a kryptonite nearby.... Please Check back later");
};
request.onsuccess = function(event) {
var db = event.target.result;
var transaction = db.transaction(["movies"],"readwrite");
var objectStore = transaction.objectStore("movies");
var request1 = objectStore.get("1");
request1.result.oncomplete=function(){
alert("The movie is"+request1.result.name);//This is the place where i get the error
}
};
request.onupgradeneeded = function(event) {
db = event.target.result;
var objectStore = db.createObjectStore("movies", { keyPath: "movieid" });
objectStore.createIndex("name", "name", { unique: false });
objectStore.createIndex("runtime", "runtime", { unique: false });
for (var i in movieDataToStore) {
objectStore.add(movieDataToStore[i]);
}};
I still do not know what was wrong with the last program. i re-wrote the above program and it worked like a charm. here is the code. Hope this helps anyone who is stuck with this problem. Also if anyone figures out what went wrong the last time please share your thoughts.
var db; //database will be stored in this value when success is called
var movieDataToStore = [{ movieid: "1", name: "Keep my Storage Local", runtime:"60"},
{ movieid: "2", name: "Rich Internet Conversations", runtime:"45"},
{ movieid: "3", name: "Applications of the Rich and Famous", runtime:"30"},
{ movieid: "4", name: "All Jump All eXtreme", runtime:"45"}];
window.query = function() {
db.transaction("movies").objectStore("movies").get("1").onsuccess = function(event) {
alert("QUERY: CThe first movie is" + event.target.result.name);
};};
window.onload = function() {
if (!window.indexedDB) {
window.alert("Your browser doesn't support a stable version of IndexedDB. Such and such feature will not be available.")
}
else{
var request = indexedDB.open("movies", 1);
request.onerror = function(event) {
alert("Seems like there is a kryptonite nearby.... Please Check back later");
};
request.onsuccess = function(event) {
db = this.result;
query();
};
request.onupgradeneeded = function(event) {
var db = event.target.result;
if(db.objectStoreNames.contains("movies")) {
db.deleteObjectStore("movies");
}
var objectStore = db.createObjectStore("movies", { keyPath: "movieid"});
objectStore.createIndex("name", "name", { unique: false });
objectStore.createIndex("runtime", "runtime", { unique: false });
for (var i in movieDataToStore) {
objectStore.add(movieDataToStore[i]);
}
};
}
};
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.