I am using JBoss Application Server 4.2.
I have noticed that when I update an .xhtml file, my local server will immediately reflect the change. However, if I update a .js file, it will not update until I restart the server. This is a huge hassle when I am working with .js files; any time I want to test a change, I need to restart the server.
Is there a way I can force JBoss to stop caching the file? Please note, solutions like this one don't work; the framework automatically includes the .js file, and I cannot change the <script src="..."> text manually.
This isn't a very elegant "solution," but I have three workarounds I've been using which mitigate the problem. I'll post them below for anyone else who has the same problem as I did:
Edit the .xhtml file on the server to add a dummy GET variable to the filename in the <script src="..."> tag. See here. In my case, because I'm using an external framework, this meant editing a XML file, which the server apparently doesn't cache.
Advantages: this will reload properly every time.
Disadvantages: I have to make sure I don't deploy the code to production with the dummy GET variable. Also, I lose any breakpoints in my debugger, which doesn't recognize that it's the same JS file.
Edit the file on the server, then make the exact same changes dynamically in Chrome debugger. See here.
Advantages: no need to worry about breakpoints or deploying bad code. No need even reload the page.
Disadvantages: the changes disappear as soon as I hit the reload button. Also, it's easy to make a mistake when synching the code.
Put the JavaScript code in the .xhtml file under its own <script> tag, then migrate it over to the .js file when ready to commit the changes.
Advantages: page reloads properly each time.
Disadvantages: migrating the code to the .js is a hassle, and it's easy to accidentally introduce bugs.
Neither of these solutions is perfect, but they work as decent patches. Of course, if anyone has a real solution to actually make the server stop caching the file, I'd still love to hear it.
Related
Static Files in Odoo
I'm new to Odoo, and am working through developing a custom theme for a client. I've worked through the theme tutorial despite the many errors and omissions that exist in that documentation (going to make a pull request to update that after I'm done). My latest struggle is dealing with static files in Odoo, specifically images in the theme.
The Setup
Running Odoo 13.0.20200323 on Ubuntu 18.04 in VirtualBox managed by Vagrant and provisioned with Ansible
The Problem
Changes to image files in the static folder are not reflected on the website. This includes updating the theme in the website theme settings (the update function seems to update everything else). I've changed image names, image content, moved them into other folder, and have not been able to figure out how to have any changes updated on the website. I've restarted the server, doesn't change anything. Updated the theme as stated above, doesn't work. The only way I've been able to have any changes reflected on the front end is to completely destroy and rebuild the server.
Questions
What am I missing? Is there a function I'm not running to trigger Odoo to update what it serves from the static folder?
How does Odoo work with static files in general? On the fly updates to files in the static folder don't seem to have any changes on the front end. Are the files in the static folder copied somewhere else on install, and then served from that other location?
Understanding
I understand that having images and other files change in a folder called static, doesn't make much sense functionally, and that's not my intention for this. Since I'm in development I need to make changes to files, like SCSS, JS, and images, and have those updates reflected on the front end without having to destroy and rebuild the server every time. To be clear, changes to SCSS and JS files that I've registered in .xml files and bundled with various Odoo bundles update just fine when I make changes to them and then update the theme on the backend in the theme management view.
My desire is to understand how Odoo handles the files in the static folder in general, how to update those files properly, and how to manage them while developing and for release.
Answers
I've figured out an answer to the first part of the question as to what I'm doing wrong. It seems like a browser caching issue. When performing a hard reload, empty cache and hard reload, or visiting the site in an incognito window changes are reflected to imagery.
As far as I can tell Odoo is just serving files from the static folder directly. Please correct me if this is not the case.
Follow-up
Does anyone have a good solution for working with changes like this and dealing with browser caching issues?
Answer: I've set up a a couple gulp tasks that use gulp-rev (will replace with gulp-rev-all soon) rev-del and rev-rewrite to handle cache busting through appending hashes to the file names.
I'm going to try setting up Browser-sync in proxy mode to see how that deals with changes to files on reload. I'll report what I find!
Update: Browser-sync has worked well so far as expected. But was kind of useless until I figured out how to work out a fix for the problem below
Does anyone know of how to automate Odoo rebuilding SCSS, JS etc. bundles? So that on file change the theme can be updated and the results seen without having to manually update the theme on the backend to see the results?
Answer: The main task was figuring out how to get live HTML/XML updates working. Which meant building Odoo from the source, and not making any updates or changes to the theme on the backend or frontend from within the Odoo interface. Passing the option --dev xml to Odoo when starting it with odoo-bin allows for the XML code to be evaluated directly, and makes live updates possible. But this extremely helpful (almost necessary) functionality is broken when you make any updates to the them from within Odoo. I'll report on any work arounds to this, but for now as long as I don't touch the theme from within Odoo (update the theme or make edits to it with their editor) then it works great. Also I had to bypass bundling my CSS and JS with their bundler initially to get those updates working live, but may be able to go back and rebundle them now that the code is being evaluated directly.
⭐️Boilerplate and Tutorial Series ⭐️
I'm going to get my whole process for theme building dialed in and then I'll be sharing the boilerplate and build tools on GitHub and also writing and filming a tutorial series on it. Since the built in documentation on that front is straight up error filled, omits critical information and also
I use hot deploy ./mvnw compile quarkus:dev. According to the documentation, I do only need to change the files without saving it and refresh the browser. However, in my case hot deploy does only work if I save the file before requesting the page. I used the getting-started-project from quarkus quickstarts. My question is: Is this the right behaviour (change file->save file->request page) and the following statement wrong (change file->request page):
https://www.baeldung.com/quarkus-io (section 4: hot reload)
In other words, changes made to Java files or to configuration files
will automatically be compiled once the browser is refreshed. The most
impressive feature here is that we don't need to save our files. This
could be good or bad, depending on our preference.
You absolutely need to save your files for hot reload to be triggered.
The update is based on the file timestamps to have changed.
What you don't need is recompiling your application or restarting anything.
I have been trying to get my Magento site to take some changes but it is still not refreshing the changes. I have disabled caching and flushed all of them on every single occasion I have also cleared my browser cache and it still does not take changes. I have gone as far to delete several files from the server that the theme relies on but it still functions like nothing was ever removed! What could be my issue?
You keep editing those files. I do not think those files are the files you think they are.
You question is pretty short on details, but my first guess if your system is running with the compiler enabled, which means it's loading its class files from
includes/src
Googling around to learn about the compiler would be a good idea.
I'd try adding the following to the end of your index.php file
echo '<--';
print_r(get_included_files());
echo '-->';
This will list every file PHP used during the request. Compare the full paths with the ones you're editing, and I bet you'll find a discrepancy.
I recently changed my project from a Website Project to a Web Application project so I could use build events.
I'm having all sorts of problems now trying to develop.
When I build the project and reload it in the web browser, it hardly ever loads the right version (sometimes it does).
Like if I make a simple update to some text, it will load the last page, like it's using a cached version of the page or something.
Also when I try to debug, it will never hit the breakpoints. I'm not sure what I need to change to fix this issue, any help would be greatly appreciated.
What browser are you using? The chances are the pages are being cached. With most browsers you can do Ctrl + F5 to force a reload of the cached files.
In Internet Explorer, you can change the option for Temporary Internet Files to 'Every time I visit the webpage', but be aware that this affects all sites you visit.
If you are talking about changes to binaries, you might need to do an iisreset. If you are still having issues, try deleting ASP.NET temp files.
This is related to my problem here:
Editing velocity template of Liferay changes not showing or takes a while
I've tried to investigate the caching problem and tried different things. Here's what I found out.
I just found out that my css is also delayed in showing the updates. I tweak my css file adding comment and testing it on my browser. Now just requesting it on the URL it will just give me an older version of the file. now if i put a query asking for version, (eg. mystyle.css?v2) it will pull the latest file and it records it. I can even see different version, eg. (mystyle.css?v1) or (mystyle.css?v2. I've cleaned my cache so it's definitely on the server side (i think).
Is there a way I can clear my cache?
Thank You!
you can activate Liferay's developer setting by including the properties that are in ROOT/WEB-INF/classes/portal-developer.properties.
Explanation: Liferay minifies and caches CSS and Javascript - once this is done it will not examine those for changes. The developer settings will disable that.
However, you don't want this setting active in production as this will mean that you'll have to load dozens of files instead of very few combined+minified, well cached, files.
I assume you are using this for development, not in production.
If you're having these problems in production, you should rather work with a proper theme plugin and redeploy that.