(core) upgrade typeorm so we can support newer postgres

Summary:
upgrade typeorm version, so Grist can run against newer versions of postgres.

Dusted off some old benchmarking code to verify that important queries don't get slower. They don't appear to, unlike for some intermediate versions of typeorm I tried in the past.

Most of the changes are because `findOne` changed how it interprets its arguments, and the value it returns when nothing is found. For the return value, I stuck with limiting its impact by emulating old behavior (returning undefined rather than null) rather than propagating the change out to parts of the code unrelated to the database.

Test Plan: existing tests pass; manual testing with postgres 10 and 14

Reviewers: georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D3613

test/gen-server/seed.ts

@@ -428,7 +428,7 @@ class Seed {
       const ba = new BillingAccount();
       ba.individual = false;
       const productName = org.product || 'Free';
-      ba.product = (await Product.findOne({name: productName}))!;
+      ba.product = (await Product.findOne({where: {name: productName}}))!;
       o.billingAccount = ba;
       if (org.domain) { o.domain = org.domain; }
       if (org.host) { o.host = org.host; }
@@ -461,7 +461,7 @@ class Seed {
   }
 
   public async run() {
-    if (await this.userRepository.findOne()) {
+    if (await this.userRepository.findOne({where: {}})) {
       // we already have a user - skip seeding database
       return;
     }
@@ -472,7 +472,7 @@ class Seed {
 
   // Creates benchmark data with 10 orgs, 50 workspaces per org and 20 docs per workspace.
   public async runBenchmark() {
-    if (await this.userRepository.findOne()) {
+    if (await this.userRepository.findOne({where: {}})) {
       // we already have a user - skip seeding database
       return;
     }
@@ -501,7 +501,7 @@ class Seed {
       login.displayEmail = login.email = name.toLowerCase() + "@getgrist.com";
       login.user = user;
       await login.save();
-      const personal = await Organization.findOne({name: name + "land"});
+      const personal = await Organization.findOne({where: {name: name + "land"}});
       if (personal) {
         personal.owner = user;
         await personal.save();
@@ -521,8 +521,8 @@ export async function removeConnection() {
       throw new Error("unexpected number of connections");
     }
     await getConnectionManager().connections[0].close();
-    // There is no official way to delete connections that I've found.
-    (getConnectionManager().connections as any) = [];
+    // There is still no official way to delete connections that I've found.
+    (getConnectionManager() as any).connectionMap = new Map();
   }
 }
 
@@ -593,6 +593,9 @@ export async function createServer(port: number, initDb = createInitialDb): Prom
   flexServer.addJsonSupport();
   await flexServer.start();
   await flexServer.initHomeDBManager();
+  flexServer.addDocWorkerMap();
+  await flexServer.loadConfig();
+  flexServer.addHosts();
   flexServer.addAccessMiddleware();
   flexServer.addApiMiddleware();
   flexServer.addHomeApi();

test/nbrowser/gristUtils.ts

@@ -599,7 +599,7 @@ export async function updateOrgPlan(orgName: string, productName: string = 'team
   const dbOrg = await db.findOne(Organization, {where: {name: orgName},
     relations: ['billingAccount', 'billingAccount.product']});
   if (!dbOrg) { throw new Error(`cannot find org ${orgName}`); }
-  const product = await db.findOne(Product, {name: productName});
+  const product = await db.findOne(Product, {where: {name: productName}});
   if (!product) { throw new Error('cannot find product'); }
   dbOrg.billingAccount.product = product;
   await dbOrg.billingAccount.save();