Stellar Development with Symfony 4

Symfony is an amazing framework, its entirely worth investing your time into learning it! the learning curve can be a bit step, but once you get the hang of it, it turns into the easiest and most fun framework to work with ever.

Hey jlchafardet

You are correct :) once you understand how Symfony works, then you can do your work "x" times faster and better
Oh, and you can speed up the learning curve if you follow up our tutorials ;)

Cheers!

Hey Vince,

Haha, well, all the code which is tested on that website are open-source, so you can check what exactly is tested on GitHub ;)

Thanks for the kind words about KnpU! They make us moving forward and release more awesome content :)

Cheers!

Hey Kribo,

You can ask related questions in comments section below a video that relates to your question.

You can also ask questions by contacting us via email, here's our contact form: https://symfonycasts.com/co...

If you have any suggestions, we do have a suggestion box too, look for "Ideas or Feedback?" button in the right bottom corner of each page.

I hope this helps.

Cheers!

Hey T. Wagner,

What do you mean that our Symfony 3 tutorials are not correct? Did you download the course code or started a new project from scratch downloading a fresh version of Symfony?

Cheers!

Hey AbelardoLG,

We're sorry about that. Please, contact us directly via our contact form: https://symfonycasts.com/co... so that we know your email, and I'll check it for you.

Cheers!

Hey Gerver,

It's a complex question, and the answer depends. Well, refactoring is always a pain, but migrating from one framework to another is much painful. Are you actively developing the project? Working on new features? If not, then it probably would be a bit easier to migrate your project to Symfony, you can actively start migrating it and when you're done - you will just replace the old project with the new one. But if you're actively coding new features on your current project - that's much difficult, because you will need to code that feature in both projects. There're a few tricks, you can start sharing services (that actually are just PHP classes) between projects, then you'll need to teach your autoloaders load those classes and write only configuration, its implementation probably remains the same, especially if you're using a lot of Symfony components in your project. If not, then it's a good idea to start using more and more Symfony components and refactoring your custom implementation in favor of Symfony components first - it'll help you migrating easier. Then, just postpone to write *everything* in Symfony way, i.e. keep hardcoded HTML forms, do not use Doctrine ORM, keep plain queries with PDO, etc. When you finish migrating to Symfony, it would be easier to refactoring these things to Symfony Forms, Doctrine ORM, etc - you can start with simple forms, start using ORM for simple entities that have no or little relations to others. But there's no simple solution, anyway you'll need to do a lot of work, but probably the main task is do not messed it up and do not get lost in refactoring. And of course, write a lot of tests! Test everything, and discover broken tests on the first stage.

I hope this helps.

Cheers!

Hey Davide Valguarnera ! Hmm I'm not getting that same error, can you send me some additional details on: (a) which specific video are you having trouble watching and (b) browser/operating system you're running?

All videos, window 7 64bit, firefox quantum

Hey Davide Valguarnera

Could you tell us if you can see any other error messages? (maybe in the developer's console tab)

I'm on Windows 7 + Firefox too, and I can't reproduce that behaviour. Do you have the latest version of Firefox installed? or maybe you have a weird extension installed causing connectivity problems?

Could you try to watch our videos in any other browser, just to be sure that is something related to Firefox. Thanks!

Cheers!

Thanks for yours quick answers MolloKhan MolloKhan

player on firefox : https://i.imgur.com/vyOW4S0...

player on chrome : https://i.imgur.com/txYZRZ8...

dev console screen : https://i.imgur.com/LcEMJGH...

Dev console text :

Il caricamento HTTP non è riuscito con stato 403. Impossibile completare il caricamento della risorsa multimediale https://player.vimeo.com/ex.... micro-app-phpstorm

(italian text cause italian browser, I guess you can easely understand is a 403 http error from vimeo player)

Object { code: 4, message: "The media could not be loaded, either because the server or network failed or because the format is not supported." }

VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) The media could not be loaded, either because the server or network failed or because the format is not supported. video-4659f5f72fd827496a39.js:1:20993

L’utilizzo di getPreventDefault() è deprecato. Al suo posto utilizzare defaultPrevented.

(and the typical preventdefault warning)

That's all there is in my console (I tried also to disable uBlock thinking it could be related to ads before video but nope)

Hey Davide Valguarnera

Don't worry about the italian text, I can get a bit of italian :) (because I'm a spanish speaker)

This is very interesting, I'm using the same OS and browser than you, and I don't get any errors...
Do you have problems watching videos in any other sites? maybe a video directly from Vimeo's
Can you try opening this video: https://player.vimeo.com/ex...

I was hoping that it was a temporary problem from Vimeo, but you are having this problem today too, right?

MolloKhan It seems it was actually temporary, cause today after login today videos started playing correctly.

Phew! I'm super happy to hear that
If you ever have this problem again, don't hesitate to contact us

Cheers!

Hey Rohit!

Thank you for your feedback! That's awesome to hear for us! And that's our main purpose, explain complex things in simple words, though the more you learn about Symfony - the more you understand that the idea behind of it is simple (and awesome) from the developer's perspective ;)

Cheers!

Hi Yukako!

Sorry for never replying - your comment got marked in spam (I think it was the translation link on the bottom). I hope you figured out your issue!

Cheers!

Hey Alain Holler

Unfortunately I cannot reproduce your error, I'm on Windows too, maybe you can give us more details about it?
By the way try to run "composer install" or "composer update" and after retry to require server

I hope this helps.

Cheers!

Hey sadikoff!

Ah, I don't think this is an error at all! Actually, this is great! You're seeing this message:

> Some files may have been created or updated to configure your new packages. Please review, edit and commit them: these files are yours.

This is the "recipe" system in action :). You can learn all about that very important system in this chapter: https://symfonycasts.com/sc...

I hope that helps!

Cheers!

Hey jlchafardet!

Nice to hear from you again! We're keeping busy as you've noticed ;). But, we're super excited - thanks for the nice words :).

Interesting question. And yea, totally! It's quite easy :). Here's basically what you do:

A) Create your form - and name your fields however you want.
B) Your controller code (for processing the submit) will look a little bit different. Instead of using $form->handleRequest(), you'll fetch the data manually and use a different method. Something like this:

public function newThing(Request $request)
{
    if ($request->isMethod('POST')) {
        $form = $this->createForm(...);
        $form->submit([
            // here, manually pass all the data you need - they keys should match up with the fields you added to your form class
            // you could also cheat and use $request->request->all() to get all POST fields
           'firstName' => $request->request->get('firstName'),
        ]);

        if (!$form->isValid()) {
            // this is probably the trickiest part. $form->getErrors() will return a FormErrorIterator object (an object you can foreach over)
            // that contains 0 to many FormError objects. You need to process these (more on that below) and render the error in the template
        }
    }
}

So, it's pretty simple - just pass the data you want to $form->submit(). The tricky part is handling the errors. I started to talk about that above. The tricky thing is that $form->getErrors() does not return what you expect. I would expect an associative array of all of the errors on the form - where the key matches the name of each field. But actually, you need to collect the errors with code like this: https://gist.github.com/weaverryan/2f9dacb4c996c9b9badf - because each field is is own Form object. It's... a bit confusing I admit :).

Oh, also don't forget to handle CSRF protection. By default, you form objects will expect it. An easy way to handle this is to set a csrf_token_id option on your form class - e.g. to "my_cool_form". Then, render a hidden field manually with:

<input type="hidden" name="_token" value="{{ csrf_token('my_cool_form') }}" />

Then you will be rendering the CSRF token that the form is expecting.

Phew! I hope this helps! Cheers!

I'm glad youve been keeping busy and improving the site! hope its success grows exponentially now, its indeed by all means a great resource site for those wanting to learn! I've learnt a lot from it and benefited much, I'm certain thousands of others would feel the same, congrats!

I'll take a look! and experiment a bit, I know I can access the request->request->get method, I was wondering if there was a way to make it less crumble-some, using the $form->handleRequest and $form->getData but if not not a problem haha

Hey Aleksandr T. ,

Not yet, but we have it on our TODO list, so we'll release it soon anyway, but I don't have any estimations yet, because right now we're releasing ReactJS course. You can follow the progress on the course overview page: https://knpuniversity.com/s... - you can subscribe for notifications and we'll email you when it is started releasing. If you don't want to wait, you can check our security tutorial for Symfony 3 project: https://knpuniversity.com/s... - if you have any problems applying it on Symfony 4 - just leave a comment below the video and we'll help you to figure out the problem.

Cheers!

find replay in order comments))

Hey Aamir,

Nothing much were changed in Symfony Form, so you can start with our Symfony 3 Forms course: https://knpuniversity.com/s... and if you have any problems - just leave us a comment below the video and we'll help you. Of course, you need to require symfony/form component with Composer at first since Symfony 4 is small and don't have this dependency by default.

Cheers!

Hey John,

As you can see this course is been already releasing right now: 2 chapters were already published recently. So we're going to release it completely in a few weeks, but new chapters will be published one by one during this time.

Cheers!

Hey railto!

We won't cover testing in *this* tutorial specifically. But, what issues are you having? How can we help? One gotcha currently (I say currently because I would very much like to change it) is that in phpunit, the environment variables are read from phpunit.xml.dist instead of .env (.env is not read at all). Mentioning that because... it could be your issue ;).

Cheers!

Hey weaverryan, sorry for taking so long to get back. The main issue im having is that I want to use an in memory sqlite db for testing. I need to figure out how I can run my doctrine migrations as part of the tests.

Hey Mark,

Hm, that's a bit pointless, since migrations are written for a specific SQL server like MySQL, SQLite, etc. That's why you can see this line in migration:
$this->abortIf('mysql' !== $this->connection->getDatabasePlatform()->getName(), 'Migration can only be executed safely on \'mysql\'.');

So if you use MySQL in production but SQLite for testing - you probably won't be able to do so. But if you use the same environment - great, then you can easily run migrations instead of creating an empty schema on your CI server and if it passes - then probably everything is OK (at least you don't have any syntax errors, maybe just logical ones :) ). So the idea is that you may make running migrations as a part of your CI when building your project.

I hope this helps

Cheers!

Never even noticed that line before.

That puts me in a really tough place then with regards to testing, I use CodeShip for my CI and the DB details are passed as vars, but in symfony 4 the db is connected via dsn, not sure how I can pull that through then

Hey railto

Have you tried this bundle? LiipFunctionalTestBundle, it allows you to use SQLite for your testing environment (besides other things like running fixtures). I believe it can help you through your problem

Oh, and we have a tutorial about TDD in case you are interested: https://knpuniversity.com/s...

Cheers!

Hey Eduardo Guglielmotti

Nice question! Actually I had to do some research and I found that they added support for Symfony 4 since last year! https://github.com/KnpLabs/...

Cheers!

I have looked at the link you sent me but I do not clarify much
Is it installed with composer like in Symfony 3? or you have to do something special, because that I have not seen

regards

Yes, you can install it with composer, but I believe it won't come with a recipe, so if that's the case you will have to configure it as you would do it in Symfony3, actually we have a video teaching how to handle bundles that does not have a recipe yet: https://knpuniversity.com/s...

I hope it helps :). Cheers!

Ok thank you, I try it and then I comment the results