X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=server%2Fhelpers%2Fdatabase-utils.ts;h=87f10f913ca37f3512ce5b139f55065485afceb1;hb=969e59d17d584baf695cf9a7d6122283518386a7;hp=d09b4b245b60bb81ab3181933d8a52363e76335a;hpb=bffbebbe6b33ce306e7ec1b6051f0e51521c0440;p=github%2FChocobozzz%2FPeerTube.git

diff --git a/server/helpers/database-utils.ts b/server/helpers/database-utils.ts
index d09b4b245..87f10f913 100644
--- a/server/helpers/database-utils.ts
+++ b/server/helpers/database-utils.ts
@@ -2,36 +2,60 @@ import * as retry from 'async/retry'
 import * as Bluebird from 'bluebird'
 import { Model } from 'sequelize-typescript'
 import { logger } from './logger'
+import { Transaction } from 'sequelize'
+
+function retryTransactionWrapper <T, A, B, C> (
+  functionToRetry: (arg1: A, arg2: B, arg3: C) => Promise<T> | Bluebird<T>,
+  arg1: A,
+  arg2: B,
+  arg3: C
+): Promise<T>
+
+function retryTransactionWrapper <T, A, B> (
+  functionToRetry: (arg1: A, arg2: B) => Promise<T> | Bluebird<T>,
+  arg1: A,
+  arg2: B
+): Promise<T>
+
+function retryTransactionWrapper <T, A> (
+  functionToRetry: (arg1: A) => Promise<T> | Bluebird<T>,
+  arg1: A
+): Promise<T>
 
-type RetryTransactionWrapperOptions = { errorMessage: string, arguments?: any[] }
 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> | Bluebird<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 => {
-    logger.error(options.errorMessage, err)
+    logger.error(`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 })
+          return willRetry
+        }
+      },
+      func,
+      (err, data) => err ? rej(err) : res(data)
+    )
   })
 }
 
@@ -39,14 +63,38 @@ function updateInstanceWithAnother <T extends Model<T>> (instanceToUpdate: Model
   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 afterCommitIfTransaction (t: Transaction, fn: Function) {
+  if (t) return t.afterCommit(() => fn())
+
+  return fn()
+}
+
+function deleteNonExistingModels <T extends { hasSameUniqueKeysThan (other: T): boolean } & Model<T>> (
+  fromDatabase: T[],
+  newModels: T[],
+  t: Transaction
+) {
+  return fromDatabase.filter(f => !newModels.find(newModel => newModel.hasSameUniqueKeysThan(f)))
+              .map(f => f.destroy({ transaction: t }))
+}
+
 // ---------------------------------------------------------------------------
 
 export {
+  resetSequelizeInstance,
   retryTransactionWrapper,
   transactionRetryer,
-  updateInstanceWithAnother
+  updateInstanceWithAnother,
+  afterCommitIfTransaction,
+  deleteNonExistingModels
 }