Call Version Change in Indexeddb Programmatically

Question

How to upgrade the IndexedDB version in a program... I have a button, If I click, the IDB version should be automatically upgraded to next version and onupgradeneeded event should be called and also if I open it the next time, it has to open with the newly upgraded version. How can I do like this??

please take a look at this question stackoverflow.com/a/20106136/366114 — Deni Spasovski
– Deni Spasovski, Commented Apr 2, 2014 at 14:16

Kristof Degrave · Accepted Answer · 2014-04-02 10:26:24Z

3

Open the database with a higher version number.

This wil trigger the onupgradeneeded event. Once this is handle the onsuccess will return ths IDB connection in the latest version.

var dbrequest = indexedDB.open("name", version);

dbrequest.onupgradeneeded = function (){
   // Upgrade db code
}

dbrequest.onsuccess = function(){
   // db opened in the provided version.
}

If you just want to open a connection to the latest version, you can call the open method without providing a version.

var dbrequest = indexedDB.open("name");

dbrequest.onsuccess = function(){
   // db opened in the latest version.
}

answered Apr 2, 2014 at 10:26

Kristof Degrave

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1 Comment

buley Over a year ago

Right on. In your database is already open, as it sounds like it might be, for the version variable, @Manikandan, you can pass indexedDB.open the current IDBDatabase.version property and + 1 and always trigger an upgradeneeded event.

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