1 files changed, 0 insertions, 121 deletions

diff --git a/server/helpers/database-utils.ts b/server/helpers/database-utils.ts
deleted file mode 100644
index b6ba7fd75..000000000
--- a/server/helpers/database-utils.ts
+++ /dev/null
@@ -1,121 +0,0 @@
-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'
-
-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: () => Promise<T> | Bluebird<T>
-): Promise<T>
-
-function retryTransactionWrapper <T> (
-  functionToRetry: (...args: any[]) => Promise<T>,
-  ...args: any[]
-): Promise<T> {
-  return transactionRetryer<T>(callback => {
-    functionToRetry.apply(null, args)
-        .then((result: T) => callback(null, result))
-        .catch(err => callback(err))
-  })
-  .catch(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, err, tags: [ 'sql', 'retry' ] })
-          return willRetry
-        }
-      },
-      func,
-      (err, data) => err ? rej(err) : res(data)
-    )
-  })
-}
-
-function saveInTransactionWithRetries <T extends Pick<Model, 'save'>> (model: T) {
-  return retryTransactionWrapper(() => {
-    return sequelizeTypescript.transaction(async transaction => {
-      await model.save({ transaction })
-    })
-  })
-}
-
-// ---------------------------------------------------------------------------
-
-function resetSequelizeInstance <T> (instance: Model<T>) {
-  return instance.reload()
-}
-
-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,
-  saveInTransactionWithRetries,
-  afterCommitIfTransaction,
-  filterNonExistingModels,
-  deleteAllModels,
-  runInReadCommittedTransaction
-}