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95 lines
2.0 KiB
95 lines
2.0 KiB
let p = console.log
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class idb_wrapper
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constructor db_name, table_name, version
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db_name = db_name
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table_name = table_name
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version = version
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openRequest = null
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def open
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openRequest = global.indexedDB.open(db_name, version)
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openRequest.onupgradeneeded = do |event|
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p "Upgrading from DB version {event.oldVersion} to {event.newVersion}."
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let db = openRequest.result
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switch event.oldVersion
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when 0
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db.createObjectStore(table_name, { keyPath: 'id', autoIncrement: true })
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openRequest.onerror = do
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p "Open db error."
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openRequest.onsuccess = do
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p "Open db success."
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if global.navigator.storage and global.navigator.storage.persist
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global.navigator.storage.persist!.then! do |persistent|
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p "db is persistent: {persistent}"
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def reload
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let store
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while yes
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try
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store = #get_store "readonly"
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p "Get store success."
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break
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catch
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p "Failed to get store, retrying."
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await #sleep 10
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let request = store.getAll!
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return new Promise! do |resolve|
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request.onsuccess = do
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p "Load db success."
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resolve request.result
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imba.commit!
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request.onerror = do
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p "Load db error."
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resolve no
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def delete obj
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let store = #get_store!
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let request = store.delete(obj.id)
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return new Promise! do |resolve|
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request.onsuccess = do
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p "deleted link: {obj}"
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resolve no
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request.onerror = do
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p "Failed to delete link: {obj}"
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resolve yes
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def put obj
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let store = #get_store!
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let request = store.put(obj)
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return new Promise! do |resolve|
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request.onsuccess = do
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p "Successfully put link: {obj}"
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resolve request.result
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request.onerror = do
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p "Failed to put link: {obj}"
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resolve no
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def #get_store permission="readwrite"
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p permission
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let db = openRequest.result
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let transaction = db.transaction(table_name, permission)
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transaction.objectStore(table_name)
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def #sleep ms
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new Promise! do |resolve|
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setTimeout resolve, ms
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export default idb_wrapper
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