The put()
method of the IDBObjectStore
interface returns an IDBRequest
object, and, in a separate thread, creates a structured clone of the value and stores the cloned value in the object store. This is for adding new records, or updating existing records in an object store when the transaction's mode is readwrite
.
If the record is successfully stored, then a success event is fired on the returned request object with the result
set to the key for the stored record, and the transaction
set to the transaction in which this object store is opened.
The put method is an update or insert method. See the IDBObjectStore.add
method for an insert only method.
Syntax
var request = objectStore.put(myItem, optionalKey);
Returns
An IDBRequest
object on which subsequent events related to this operation are fired.
Exceptions
This method may raise a DOMException
of one of the following types:
Exception | Description |
---|---|
ReadOnlyError |
The transaction associated with this operation is in read-only mode. |
TransactionInactiveError |
This IDBObjectStore 's transaction is inactive. |
DataError |
Any of the following conditions apply:
|
InvalidStateError |
The IDBObjectStore has been deleted or removed. |
DataCloneError |
The data being stored could not be cloned by the internal structured cloning algorithm. |
Example
The following example requests a given record title; when that request is successful the onsuccess
function gets the associated record from the IDBObjectStore
(made available as objectStoreTitleRequest.result
), updates one property of the record, and then puts the updated record back into the object store in another request with put()
. For a full working example, see our To-do Notifications app (view example live.)
var title = "Walk dog";
// Open up a transaction as usual
var objectStore = db.transaction(['toDoList'], "readwrite").objectStore('toDoList');
// Get the to-do list object that has this title as it's title
var objectStoreTitleRequest = objectStore.get(title);
objectStoreTitleRequest.onsuccess = function() {
// Grab the data object returned as the result
var data = objectStoreTitleRequest.result;
// Update the notified value in the object to "yes"
data.notified = "yes";
// Create another request that inserts the item back into the database
var updateTitleRequest = objectStore.put(data);
// Log the transaction that originated this request
console.log("The transaction that originated this request is " + updateTitleRequest.transaction);
// When this new request succeeds, run the displayData() function again to update the display
updateTitleRequest.onsuccess = function() {
displayData();
};
};
Parameters
- value
- The value to be stored.
- key
- The key to use to identify the record. If unspecified, it results to null.
Specification
Specification | Status | Comment |
---|---|---|
Indexed Database API The definition of 'put()' in that specification. |
Editor's Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 23webkit 24 |
10 moz 16.0 (16.0) |
10, partial | 15 | 7.1 |
Available in workers | (Yes) | 37.0 (37.0) | ? | (Yes) | ? |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | 4.4 | 22.0 (22.0) | 1.0.1 | 10 | 22 | 8 |
Available in workers | (Yes) | 37.0 (37.0) | (Yes) | ? | (Yes) | ? |
See also
- Using IndexedDB
- Starting transactions:
IDBDatabase
- Using transactions:
IDBTransaction
- Setting a range of keys:
IDBKeyRange
- Retrieving and making changes to your data:
IDBObjectStore
- Using cursors:
IDBCursor
- Reference example: To-do Notifications (view example live.)