-import * as retry from 'async/retry'
-import * as Bluebird from 'bluebird'
+import retry from 'async/retry'
+import Bluebird from 'bluebird'
+import { Transaction } from 'sequelize'
import { Model } from 'sequelize-typescript'
+import { sequelizeTypescript } from '@server/initializers/database'
import { logger } from './logger'
-type RetryTransactionWrapperOptions = { errorMessage: string, arguments?: any[] }
+function retryTransactionWrapper <T, A, B, C, D> (
+ functionToRetry: (arg1: A, arg2: B, arg3: C, arg4: D) => Promise<T>,
+ arg1: A,
+ arg2: B,
+ arg3: C,
+ arg4: D,
+): Promise<T>
+
+function retryTransactionWrapper <T, A, B, C> (
+ functionToRetry: (arg1: A, arg2: B, arg3: C) => Promise<T>,
+ arg1: A,
+ arg2: B,
+ arg3: C
+): Promise<T>
+
+function retryTransactionWrapper <T, A, B> (
+ functionToRetry: (arg1: A, arg2: B) => Promise<T>,
+ arg1: A,
+ arg2: B
+): Promise<T>
+
+function retryTransactionWrapper <T, A> (
+ functionToRetry: (arg1: A) => Promise<T>,
+ arg1: A
+): Promise<T>
+
function retryTransactionWrapper <T> (
- functionToRetry: (...args) => Promise<T> | Bluebird<T>,
- options: RetryTransactionWrapperOptions
-): Promise<T> {
- const args = options.arguments ? options.arguments : []
+ functionToRetry: () => Promise<T> | Bluebird<T>
+): Promise<T>
+function retryTransactionWrapper <T> (
+ functionToRetry: (...args: any[]) => Promise<T>,
+ ...args: any[]
+): Promise<T> {
return transactionRetryer<T>(callback => {
- functionToRetry.apply(this, args)
+ functionToRetry.apply(null, args)
.then((result: T) => callback(null, result))
.catch(err => callback(err))
})
.catch(err => {
- console.error(err)
- logger.error(options.errorMessage, err)
+ logger.warn(`Cannot execute ${functionToRetry.name} with many retries.`, { err })
throw err
})
}
function transactionRetryer <T> (func: (err: any, data: T) => any) {
return new Promise<T>((res, rej) => {
- retry({
- times: 5,
-
- errorFilter: err => {
- const willRetry = (err.name === 'SequelizeDatabaseError')
- logger.debug('Maybe retrying the transaction function.', { willRetry })
- return willRetry
- }
- }, func, (err, data) => err ? rej(err) : res(data))
+ retry(
+ {
+ times: 5,
+
+ errorFilter: err => {
+ const willRetry = (err.name === 'SequelizeDatabaseError')
+ logger.debug('Maybe retrying the transaction function.', { willRetry, err, tags: [ 'sql', 'retry' ] })
+ return willRetry
+ }
+ },
+ func,
+ (err, data) => err ? rej(err) : res(data)
+ )
})
}
-function updateInstanceWithAnother <T> (instanceToUpdate: Model<T>, baseInstance: Model<T>) {
+// ---------------------------------------------------------------------------
+
+function updateInstanceWithAnother <M, T extends U, U extends Model<M>> (instanceToUpdate: T, baseInstance: U) {
const obj = baseInstance.toJSON()
for (const key of Object.keys(obj)) {
- instanceToUpdate.set(key, obj[key])
+ instanceToUpdate[key] = obj[key]
}
}
+function resetSequelizeInstance (instance: Model<any>, savedFields: object) {
+ Object.keys(savedFields).forEach(key => {
+ instance[key] = savedFields[key]
+ })
+}
+
+function filterNonExistingModels <T extends { hasSameUniqueKeysThan (other: T): boolean }> (
+ fromDatabase: T[],
+ newModels: T[]
+) {
+ return fromDatabase.filter(f => !newModels.find(newModel => newModel.hasSameUniqueKeysThan(f)))
+}
+
+function deleteAllModels <T extends Pick<Model, 'destroy'>> (models: T[], transaction: Transaction) {
+ return Promise.all(models.map(f => f.destroy({ transaction })))
+}
+
+// ---------------------------------------------------------------------------
+
+function runInReadCommittedTransaction <T> (fn: (t: Transaction) => Promise<T>) {
+ const options = { isolationLevel: Transaction.ISOLATION_LEVELS.READ_COMMITTED }
+
+ return sequelizeTypescript.transaction(options, t => fn(t))
+}
+
+function afterCommitIfTransaction (t: Transaction, fn: Function) {
+ if (t) return t.afterCommit(() => fn())
+
+ return fn()
+}
+
// ---------------------------------------------------------------------------
export {
+ resetSequelizeInstance,
retryTransactionWrapper,
transactionRetryer,
- updateInstanceWithAnother
+ updateInstanceWithAnother,
+ afterCommitIfTransaction,
+ filterNonExistingModels,
+ deleteAllModels,
+ runInReadCommittedTransaction
}