Introduces flow types for storage (parse-community#4349)

* Introduces flow types for storage

* Better typing of QueryOptions

* Adds flow types to SchemaCOntroller,

- runs flow on pre tests
- fixes flow

* Adds ClassLevelPermissions type

* Moves Controller types into a single file

* Changes import styles

* Changes import styles

* fixing method setIndexesWithSchemaFormat (parse-community#4454)

Fixing invalid database code in method `setIndexesWithSchemaFormat`:

* It must be a transaction, not a task, as it executes multiple database changes
* It should contain the initial queries inside the transaction, providing the context, not outside it;
* Replaced the code with the ES6 Generator notation
* Removing the use of batch, as the value of the result promise is irrelevant, only success/failure that matters

* nits

* Fixes tests, improves flow typing

.flowconfig

@@ -7,3 +7,4 @@
 [libs]
 
 [options]
+suppress_comment= \\(.\\|\n\\)*\\@flow-disable-next

package.json

@@ -56,6 +56,7 @@
     "deep-diff": "0.3.8",
     "eslint": "^4.9.0",
     "eslint-plugin-flowtype": "^2.39.1",
+    "flow-bin": "^0.59.0",
     "gaze": "1.1.2",
     "jasmine": "2.8.0",
     "jasmine-spec-reporter": "^4.1.0",
@@ -66,7 +67,7 @@
   },
   "scripts": {
     "dev": "npm run build && node bin/dev",
-    "lint": "eslint --cache ./",
+    "lint": "flow && eslint --cache ./",
     "build": "babel src/ -d lib/ --copy-files",
     "pretest": "npm run lint",
     "test": "cross-env MONGODB_VERSION=${MONGODB_VERSION:=3.2.6} MONGODB_STORAGE_ENGINE=mmapv1 TESTING=1 jasmine",

spec/MongoStorageAdapter.spec.js

@@ -1,7 +1,7 @@
 'use strict';
 
-const MongoStorageAdapter = require('../src/Adapters/Storage/Mongo/MongoStorageAdapter');
-const MongoClient = require('mongodb').MongoClient;
+import MongoStorageAdapter from '../src/Adapters/Storage/Mongo/MongoStorageAdapter';
+const { MongoClient } = require('mongodb');
 const databaseURI = 'mongodb://localhost:27017/parseServerMongoAdapterTestDatabase';
 
 // These tests are specific to the mongo storage adapter + mongo storage format

spec/ParsePolygon.spec.js

@@ -1,5 +1,5 @@
 const TestObject = Parse.Object.extend('TestObject');
-const MongoStorageAdapter = require('../src/Adapters/Storage/Mongo/MongoStorageAdapter');
+import MongoStorageAdapter from '../src/Adapters/Storage/Mongo/MongoStorageAdapter';
 const mongoURI = 'mongodb://localhost:27017/parseServerMongoAdapterTestDatabase';
 const rp = require('request-promise');
 const defaultHeaders = {

spec/ParseQuery.FullTextSearch.spec.js

@@ -1,8 +1,8 @@
 'use strict';
 
-const MongoStorageAdapter = require('../src/Adapters/Storage/Mongo/MongoStorageAdapter');
+import MongoStorageAdapter from '../src/Adapters/Storage/Mongo/MongoStorageAdapter';
 const mongoURI = 'mongodb://localhost:27017/parseServerMongoAdapterTestDatabase';
-const PostgresStorageAdapter = require('../src/Adapters/Storage/Postgres/PostgresStorageAdapter');
+import PostgresStorageAdapter from '../src/Adapters/Storage/Postgres/PostgresStorageAdapter';
 const postgresURI = 'postgres://localhost:5432/parse_server_postgres_adapter_test_database';
 const Parse = require('parse/node');
 const rp = require('request-promise');

spec/ParseServer.spec.js

@@ -1,7 +1,8 @@
 'use strict';
 /* Tests for ParseServer.js */
 const express = require('express');
-
+import MongoStorageAdapter from '../src/Adapters/Storage/Mongo/MongoStorageAdapter';
+import PostgresStorageAdapter from '../src/Adapters/Storage/Postgres/PostgresStorageAdapter';
 import ParseServer from '../src/ParseServer';
 
 describe('Server Url Checks', () => {
@@ -35,8 +36,6 @@ describe('Server Url Checks', () => {
   });
 
   it('handleShutdown, close connection', (done) => {
-    var MongoStorageAdapter = require('../src/Adapters/Storage/Mongo/MongoStorageAdapter');
-    const PostgresStorageAdapter = require('../src/Adapters/Storage/Postgres/PostgresStorageAdapter');
     const mongoURI = 'mongodb://localhost:27017/parseServerMongoAdapterTestDatabase';
     const postgresURI = 'postgres://localhost:5432/parse_server_postgres_adapter_test_database';
     let databaseAdapter;

spec/PostgresInitOptions.spec.js

@@ -1,5 +1,5 @@
 const Parse = require('parse/node').Parse;
-const PostgresStorageAdapter = require('../src/Adapters/Storage/Postgres/PostgresStorageAdapter');
+import PostgresStorageAdapter from '../src/Adapters/Storage/Postgres/PostgresStorageAdapter';
 const postgresURI = 'postgres://localhost:5432/parse_server_postgres_adapter_test_database';
 const ParseServer = require("../src/index");
 const express = require('express');

spec/PostgresStorageAdapter.spec.js

@@ -1,4 +1,4 @@
-const PostgresStorageAdapter = require('../src/Adapters/Storage/Postgres/PostgresStorageAdapter');
+import PostgresStorageAdapter from '../src/Adapters/Storage/Postgres/PostgresStorageAdapter';
 const databaseURI = 'postgres://localhost:5432/parse_server_postgres_adapter_test_database';
 
 describe_only_db('postgres')('PostgresStorageAdapter', () => {

spec/helper.js

@@ -27,10 +27,10 @@ var cache = require('../src/cache').default;
 var ParseServer = require('../src/index').ParseServer;
 var path = require('path');
 var TestUtils = require('../src/TestUtils');
-var MongoStorageAdapter = require('../src/Adapters/Storage/Mongo/MongoStorageAdapter');
 const GridStoreAdapter = require('../src/Adapters/Files/GridStoreAdapter').GridStoreAdapter;
 const FSAdapter = require('@parse/fs-files-adapter');
-const PostgresStorageAdapter = require('../src/Adapters/Storage/Postgres/PostgresStorageAdapter');
+import PostgresStorageAdapter from '../src/Adapters/Storage/Postgres/PostgresStorageAdapter';
+import MongoStorageAdapter from '../src/Adapters/Storage/Mongo/MongoStorageAdapter';
 const RedisCacheAdapter = require('../src/Adapters/Cache/RedisCacheAdapter').default;
 
 const mongoURI = 'mongodb://localhost:27017/parseServerMongoAdapterTestDatabase';

spec/index.spec.js

@@ -6,7 +6,7 @@ var ParseServer = require("../src/index");
 var Config = require('../src/Config');
 var express = require('express');
 
-const MongoStorageAdapter = require('../src/Adapters/Storage/Mongo/MongoStorageAdapter');
+import MongoStorageAdapter from '../src/Adapters/Storage/Mongo/MongoStorageAdapter';
 
 describe('server', () => {
   it('requires a master key and app id', done => {

src/Adapters/Files/GridStoreAdapter.js

@@ -6,6 +6,7 @@
  @flow weak
  */
 
+// @flow-disable-next
 import { MongoClient, GridStore, Db} from 'mongodb';
 import { FilesAdapter }              from './FilesAdapter';
 import defaults                      from '../../defaults';

src/Adapters/Storage/Mongo/MongoSchemaCollection.js

@@ -137,6 +137,18 @@ class MongoSchemaCollection {
     return this._collection._mongoCollection.findAndRemove(_mongoSchemaQueryFromNameQuery(name), []);
   }
 
+  insertSchema(schema: any) {
+    return this._collection.insertOne(schema)
+      .then(result => mongoSchemaToParseSchema(result.ops[0]))
+      .catch(error => {
+        if (error.code === 11000) { //Mongo's duplicate key error
+          throw new Parse.Error(Parse.Error.DUPLICATE_VALUE, 'Class already exists.');
+        } else {
+          throw error;
+        }
+      })
+  }
+
   updateSchema(name: string, update) {
     return this._collection.updateOne(_mongoSchemaQueryFromNameQuery(name), update);
   }