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Keeping old indexes in indexeddb upgrade
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packages/modules/packages/archivist/packages/indexeddb/src/IndexedDbHelpers.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| import type { Logger } from '@xylabs/logger' | ||
| import type { IndexDescription, IndexDirection } from '@xyo-network/archivist-model' | ||
| import { buildStandardIndexName } from '@xyo-network/archivist-model' | ||
| import type { IDBPDatabase, IDBPObjectStore } from 'idb' | ||
| import { openDB } from 'idb' | ||
|
|
||
| import type { PayloadStore } from './Archivist.ts' | ||
|
|
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| export function createStore(db: IDBPDatabase<PayloadStore>, storeName: string, indexes: IndexDescription[], logger?: Logger) { | ||
| logger?.log(`Creating store ${storeName}`) | ||
| // Create the store | ||
| const store = db.createObjectStore(storeName, { | ||
| // If it isn't explicitly set, create a value by auto incrementing. | ||
| autoIncrement: true, | ||
| }) | ||
| // Name the store | ||
| store.name = storeName | ||
| // Create an index on the hash | ||
| for (const { | ||
| key, multiEntry, unique, | ||
| } of indexes) { | ||
| const indexKeys = Object.keys(key) | ||
| const keys = indexKeys.length === 1 ? indexKeys[0] : indexKeys | ||
| const indexName = buildStandardIndexName({ key, unique }) | ||
| store.createIndex(indexName, keys, { multiEntry, unique }) | ||
| } | ||
| } | ||
|
|
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| export async function getExistingIndexes(db: IDBPDatabase<PayloadStore>, storeName: string): Promise<IndexDescription[]> { | ||
| return await useReadOnlyStore(db, storeName, (store) => { | ||
| return [...store.indexNames].map((indexName) => { | ||
| const index = store.index(indexName) | ||
| const key: Record<string, IndexDirection> = {} | ||
| if (Array.isArray(index.keyPath)) { | ||
| for (const keyPath of index.keyPath) { | ||
| key[keyPath] = 1 | ||
| } | ||
| } else { | ||
| key[index.keyPath] = 1 | ||
| } | ||
| const desc: IndexDescription = { | ||
| name: indexName, | ||
| key, | ||
| unique: index.unique, | ||
| multiEntry: index.multiEntry, | ||
| } | ||
| return desc | ||
| }) | ||
| }) | ||
| } | ||
|
|
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| export async function useDb<T>(dbName: string, callback: (db: IDBPDatabase<PayloadStore>) => Promise<T> | T): Promise<T> { | ||
| const db = await openDB<PayloadStore>(dbName) | ||
| try { | ||
| return await callback(db) | ||
| } finally { | ||
| db.close() | ||
| } | ||
| } | ||
|
|
||
| export async function useReadOnlyStore<T>( | ||
| db: IDBPDatabase<PayloadStore>, | ||
| storeName: string, | ||
| callback: (store: IDBPObjectStore<PayloadStore, [string], string, 'readonly'>) => Promise<T> | T, | ||
| ): Promise<T> { | ||
| const transaction = db.transaction(storeName, 'readonly') | ||
| const store = transaction.objectStore(storeName) | ||
| try { | ||
| return await callback(store) | ||
| } finally { | ||
| await transaction.done | ||
| } | ||
| } | ||
|
|
||
| export async function useReadWriteStore<T>( | ||
| db: IDBPDatabase<PayloadStore>, | ||
| storeName: string, | ||
| callback: (store: IDBPObjectStore<PayloadStore, [string], string, 'readwrite'>) => Promise<T> | T, | ||
| ): Promise<T> { | ||
| const transaction = db.transaction(storeName, 'readwrite') | ||
| const store = transaction.objectStore(storeName) | ||
| try { | ||
| return await callback(store) | ||
| } finally { | ||
| await transaction.done | ||
| } | ||
| } |
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