Method _initializeDatabase

newIDE/app/src/Utils/ProjectCache.js:111–152

()

  }

  _initializeDatabase(): any {
    if (!this.databasePromise) {
      this.databasePromise = new Promise<IDBDatabase>((resolve, reject) => {
        ProjectCache._removeDatabaseIfCorrupt().then(
          () => {
            const request = window.indexedDB.open(
              CLOUD_PROJECT_AUTOSAVE_CACHE_KEY
            );
            request.onsuccess = event => {
              const db = event.target.result;
              if (!db.objectStoreNames.contains(objectStoreScope)) {
                // The onUpgradeNeeded is called before the success event so the object
                // store should exist.
                console.error(
                  `Couldn't find the object store ${objectStoreScope}. An issue must have happened when creating the database.`
                );
              }
              resolve(db);
            };
            request.onerror = event => {
              console.error('IndexedDB could not be opened:', event);
              reject(event);
            };
            request.onupgradeneeded = event => {
              const db = event.target.result;

              if (!db.objectStoreNames.contains(objectStoreScope)) {
                db.createObjectStore(objectStoreScope, { keyPath: keyName });
              }
            };
          },
          error => {
            console.error(
              'An error occurred while clearing a corrupt database.',
              error
            );
          }
        );
      });
    }
    return this.databasePromise;
  }

  async _getEntry(cacheKey: ProjectCacheKey): any {
    const database = await this._initializeDatabase();