optimalizations

packages/api/src/controllers/databaseConnections.js

@@ -30,7 +30,6 @@ module.exports = {
     if (!existing) return;
     existing.status = status;
     socket.emitChanged(`database-status-changed-${conid}-${database}`);
-    socket.emitChanged(`database-structure-changed-${conid}-${database}`);
   },
 
   handle_ping() {},
@@ -117,7 +116,6 @@ module.exports = {
         structure: existing.structure,
       };
       socket.emitChanged(`database-status-changed-${conid}-${database}`);
-      socket.emitChanged(`database-structure-changed-${conid}-${database}`);
     }
   },
 

packages/api/src/proc/databaseConnectionProcess.js

@@ -42,10 +42,16 @@ async function handleConnect({ connection, structure }) {
   storedConnection = connection;
   lastPing = new Date().getTime();
 
-  setStatusName('pending');
+  if (!structure) setStatusName('pending');
+  else setStatusName('ok');
   const driver = engines(storedConnection);
   systemConnection = await driverConnect(driver, storedConnection);
-  handleFullRefresh();
+  if (structure) {
+    analysedStructure = structure;
+    handleIncrementalRefresh();
+  } else {
+    handleFullRefresh();
+  }
   setInterval(handleIncrementalRefresh, 30 * 1000);
   for (const [resolve] of afterConnectCallbacks) {
     resolve();

packages/web/src/utility/cache.js

@@ -1,3 +1,5 @@
+import getAsArray from './getAsArray';
+
 let cachedByKey = {};
 let cachedPromisesByKey = {};
 const cachedKeysByReloadTrigger = {};
@@ -8,22 +10,26 @@ export function cacheGet(key) {
 
 export function cacheSet(key, value, reloadTrigger) {
   cachedByKey[key] = value;
-  if (!(reloadTrigger in cachedKeysByReloadTrigger)) {
-    cachedKeysByReloadTrigger[reloadTrigger] = [];
+  for (const item of getAsArray(reloadTrigger)) {
+    if (!(item in cachedKeysByReloadTrigger)) {
+      cachedKeysByReloadTrigger[item] = [];
+    }
+    cachedKeysByReloadTrigger[item].push(key);
   }
-  cachedKeysByReloadTrigger[reloadTrigger].push(key);
   delete cachedPromisesByKey[key];
 }
 
 export function cacheClean(reloadTrigger) {
-  const keys = cachedKeysByReloadTrigger[reloadTrigger];
-  if (keys) {
-    for (const key of keys) {
-      delete cachedByKey[key];
-      delete cachedPromisesByKey[key];
+  for (const item of getAsArray(reloadTrigger)) {
+    const keys = cachedKeysByReloadTrigger[item];
+    if (keys) {
+      for (const key of keys) {
+        delete cachedByKey[key];
+        delete cachedPromisesByKey[key];
+      }
     }
+    delete cachedKeysByReloadTrigger[item];
   }
-  delete cachedKeysByReloadTrigger[reloadTrigger];
 }
 
 export function getCachedPromise(key, func) {

packages/web/src/utility/getAsArray.js

@@ -0,0 +1,7 @@
+import _ from 'lodash';
+
+export default function getAsArray(obj) {
+  if (_.isArray(obj)) return obj;
+  if (obj != null) return [obj];
+  return [];
+}

packages/web/src/utility/metadataLoaders.js

@@ -24,7 +24,7 @@ const connectionInfoLoader = ({ conid }) => ({
 const sqlObjectListLoader = ({ conid, database }) => ({
   url: 'metadata/list-objects',
   params: { conid, database },
-  reloadTrigger: `database-structure-changed-${conid}-${database}`,
+  reloadTrigger: [`database-structure-changed-${conid}-${database}`, `database-status-changed-${conid}-${database}`],
 });
 
 const databaseListLoader = ({ conid }) => ({

packages/web/src/utility/useFetch.js

@@ -4,6 +4,7 @@ import axios from './axios';
 import useSocket from './SocketProvider';
 import stableStringify from 'json-stable-stringify';
 import { getCachedPromise, cacheGet, cacheSet } from './cache';
+import getAsArray from './getAsArray';
 
 export default function useFetch({
   url,
@@ -57,9 +58,13 @@ export default function useFetch({
 
   React.useEffect(() => {
     if (reloadTrigger && socket) {
-      socket.on(reloadTrigger, handleReload);
+      for (const item of getAsArray(reloadTrigger)) {
+        socket.on(item, handleReload);
+      }
       return () => {
-        socket.off(reloadTrigger, handleReload);
+        for (const item of getAsArray(reloadTrigger)) {
+          socket.off(item, handleReload);
+        }
       };
     }
   }, [socket, reloadTrigger]);