1 import * as retry from 'async/retry'
2 import * as Bluebird from 'bluebird'
3 import { QueryTypes, Transaction } from 'sequelize'
4 import { Model } from 'sequelize-typescript'
5 import { sequelizeTypescript } from '@server/initializers/database'
6 import { logger } from './logger'
8 function retryTransactionWrapper <T, A, B, C, D> (
9 functionToRetry: (arg1: A, arg2: B, arg3: C, arg4: D) => Promise<T>,
16 function retryTransactionWrapper <T, A, B, C> (
17 functionToRetry: (arg1: A, arg2: B, arg3: C) => Promise<T>,
23 function retryTransactionWrapper <T, A, B> (
24 functionToRetry: (arg1: A, arg2: B) => Promise<T>,
29 function retryTransactionWrapper <T, A> (
30 functionToRetry: (arg1: A) => Promise<T>,
34 function retryTransactionWrapper <T> (
35 functionToRetry: () => Promise<T> | Bluebird<T>
38 function retryTransactionWrapper <T> (
39 functionToRetry: (...args: any[]) => Promise<T>,
42 return transactionRetryer<T>(callback => {
43 functionToRetry.apply(null, args)
44 .then((result: T) => callback(null, result))
45 .catch(err => callback(err))
48 logger.error(`Cannot execute ${functionToRetry.name} with many retries.`, { err })
53 function transactionRetryer <T> (func: (err: any, data: T) => any) {
54 return new Promise<T>((res, rej) => {
60 const willRetry = (err.name === 'SequelizeDatabaseError')
61 logger.debug('Maybe retrying the transaction function.', { willRetry, err, tags: [ 'sql', 'retry' ] })
66 (err, data) => err ? rej(err) : res(data)
71 // ---------------------------------------------------------------------------
73 function updateInstanceWithAnother <M, T extends U, U extends Model<M>> (instanceToUpdate: T, baseInstance: U) {
74 const obj = baseInstance.toJSON()
76 for (const key of Object.keys(obj)) {
77 instanceToUpdate[key] = obj[key]
81 function resetSequelizeInstance (instance: Model<any>, savedFields: object) {
82 Object.keys(savedFields).forEach(key => {
83 instance[key] = savedFields[key]
87 function deleteNonExistingModels <T extends { hasSameUniqueKeysThan (other: T): boolean } & Pick<Model, 'destroy'>> (
92 return fromDatabase.filter(f => !newModels.find(newModel => newModel.hasSameUniqueKeysThan(f)))
93 .map(f => f.destroy({ transaction: t }))
96 // Sequelize always skip the update if we only update updatedAt field
97 function setAsUpdated (table: string, id: number, transaction?: Transaction) {
98 return sequelizeTypescript.query(
99 `UPDATE "${table}" SET "updatedAt" = :updatedAt WHERE id = :id`,
101 replacements: { table, id, updatedAt: new Date() },
102 type: QueryTypes.UPDATE,
108 // ---------------------------------------------------------------------------
110 function runInReadCommittedTransaction <T> (fn: (t: Transaction) => Promise<T>) {
111 const options = { isolationLevel: Transaction.ISOLATION_LEVELS.READ_COMMITTED }
113 return sequelizeTypescript.transaction(options, t => fn(t))
116 function afterCommitIfTransaction (t: Transaction, fn: Function) {
117 if (t) return t.afterCommit(() => fn())
122 // ---------------------------------------------------------------------------
125 resetSequelizeInstance,
126 retryTransactionWrapper,
128 updateInstanceWithAnother,
129 afterCommitIfTransaction,
130 deleteNonExistingModels,
132 runInReadCommittedTransaction