修正indexdb连接

src/indexeddb.js

@@ -0,0 +1,49 @@
+export default class IndexedDB {
+    constructor(databaseName, databaseVersion) {
+        this.databaseName = databaseName
+        this.databaseVersion = databaseVersion
+        this.db = null
+    }
+
+    open(name) {
+        return new Promise((resolve, reject) => {
+            const request = indexedDB.open(this.databaseName, this.databaseVersion)
+            request.onerror = (event) => {
+                reject(event.target.error)
+            }
+            request.onsuccess = (event) => {
+                this.db = event.target.result
+                resolve(this.db)
+            }
+            request.onupgradeneeded = (event) => {
+                const db = event.target.result
+                if (!db.objectStoreNames.contains('todo')) {
+                    db.createObjectStore(name, { keyPath: 'id' })
+                    console.log('store created:', name)
+                }
+            }
+        })
+    }
+
+    async store(name) {
+        if (!this.db) return await this.open(name)
+        return new Promise((resolve, reject) => {
+            const request = this.db.transaction([name], 'readwrite').objectStore(name)
+            resolve(request)
+        })
+    }
+
+    getAll(name) {
+        return new Promise((resolve, reject) => {
+            const transaction = this.db.transaction([name], 'readonly')
+            const objectStore = transaction.objectStore(name)
+            const request = objectStore.getAll()
+            request.onerror = (event) => {
+                reject(event.target.error)
+            }
+            request.onsuccess = (event) => {
+                resolve(event.target.result)
+            }
+        })
+    }
+}