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bugfix (indexedDB): flushing a non existing db would throw a critical error ... #97

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Mickael Kerjean
2018-08-07 10:19:24 +10:00
parent 526bc3142d
commit 696b852186
2 changed files with 14 additions and 6 deletions
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18
client/helpers/cache.js
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@ -7,9 +7,11 @@ function Data(){
this._init();
}
const DB_VERSION = 2;
Data.prototype._init = function(){
const request = indexedDB.open('nuage', 2);
request.onupgradeneeded = (e) => this._setup(e.target.result);
const request = indexedDB.open('nuage', DB_VERSION);
request.onupgradeneeded = (e) => this._setup(e);
this.db = new Promise((done, err) => {
request.onsuccess = (e) => {
@ -21,10 +23,16 @@ Data.prototype._init = function(){
});
}
Data.prototype._setup = function(db){
Data.prototype._setup = function(e){
let store;
db.deleteObjectStore(this.FILE_PATH);
db.deleteObjectStore(this.FILE_CONTENT);
let db = e.target.result;
if(e.oldVersion == 1){
// we've change the schema on v2 adding an index, let's flush
// to make sure everything will be fine
db.deleteObjectStore(this.FILE_PATH);
db.deleteObjectStore(this.FILE_CONTENT);
}
store = db.createObjectStore(this.FILE_PATH, {keyPath: "path"});
store.createIndex("idx_path", "path", { unique: true });