Chapters

26 Chapters | 2:53:08 |

01

Events, Events & Events!

5:10
02

Hooking into Symfony with an Event Subscriber

5:54
03

index.php to HttpKernel::handle()

6:50
04

RequestEvent & RouterListener

6:26
05

Routing Secrets & Request Attributes

7:47
06

The Controller Resolver

7:03
07

Who Creates the Controller & Gives it the Container?

8:04
08

How does the Controller Access the Container?

4:14
09

The Argument Resolver

8:13
10

Argument Value Resolvers

5:32
11

How Service Autowiring Works in a Controller Method

7:36
12

Calling the Controller & View Event

5:20
13

kernel.response Event & Request Format

6:36
14

Finishing the Request

6:03
15

Exception Handling

9:29
16

The Critical kernel.exception Event Listeners

7:07
17

FlattenException & Error Status Codes

6:10
18

Serializer Error Renderer: JSON/XML Errors

5:40
19

How the HTML Error Page is Rendered

7:34
20

The Magic `_controller` Attribute

6:36
21

Custom Global Controller Arguments

5:37
22

How Entity Controller Arguments Work

4:54
23

Sub Requests

7:54
24

Sub Requests & Request Data

5:40
25

Manually Making a Sub Request

6:34
26

Sub Request Attributes

9:05

> Symfony 5 > Symfony 5 Deep Dive! The HttpKernel Request-Response Flow

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14.

Finishing the Request

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4 Comments

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sridharpandu 5 years ago

I see that the expires header is set with the following line
setExpires(new \DateTime());

Is there a way to set this to a date in the future, in the controllers that we write or do we have to set it in the webserver? This is required especially on sites where we output basic product or profile pages that seldom change.

|

weaverryan SFCASTS sridharpandu 5 years ago edited

Hey sridharpandu!

Definitely you can set this in a controller - you can set it directly on the Response object. For example:


/**
 * @Route("/products")
 */
public function products()
{
    // ...

    $response = $this->render('product/products.html.twig');
    $response->setExpires(new \DateTime('+24 hours'));

    return $response;
}

Of course, to fully take advantage of this, you'll need some sort of HTTP cache (e.g. Varnish) installed on your server to cache this. But strictly speaking, this is how you control that header.

Cheers!

1 |

sridharpandu weaverryan 5 years ago

I am working on setting up the Varnsih Cache for one of our Drupal 8 Sites. It seems to be caching the assets but the home page is set to expire on 19th Nov 1978 (and is hence uncacheable) which I belive is Dries DOB! But tfound some literature on the Drupal.org sites. Still a lot more work to do. However we will primarily be using the API Platfrom for development.

|

weaverryan SFCASTS sridharpandu 5 years ago edited

Hey sridharpandu!

> but the home page is set to expire on 19th Nov 1978 (and is hence uncacheable) which I belive is Dries DOB

If that's true, that's hilarious!

> But tfound some literature on the Drupal.org sites. Still a lot more work to do.

Good luck! As you know, Drupal adds a lot of layers and functionality on top of Symfony... and though I'm not familiar with these specific layers in Drupal, they almost certainly do things with these cache headers.

Cheers!

1 |

This tutorial also works well for Symfony 6!

Symfony 5

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": ">=8.2",
        "ext-iconv": "*",
        "antishov/doctrine-extensions-bundle": "^1.4", // v1.4.3
        "aws/aws-sdk-php": "^3.87", // 3.133.20
        "composer/package-versions-deprecated": "^1.11", // 1.11.99
        "doctrine/annotations": "^1.0", // 1.12.1
        "doctrine/doctrine-bundle": "^2.0", // 2.2.3
        "doctrine/doctrine-migrations-bundle": "^1.3|^2.0", // 2.2.2
        "doctrine/orm": "^2.5.11", // 2.8.2
        "easycorp/easy-log-handler": "^1.0", // v1.0.9
        "http-interop/http-factory-guzzle": "^1.0", // 1.0.0
        "knplabs/knp-markdown-bundle": "^1.7", // 1.9.0
        "knplabs/knp-paginator-bundle": "^5.0", // v5.4.2
        "knplabs/knp-snappy-bundle": "^1.6", // v1.7.1
        "knplabs/knp-time-bundle": "^1.8", // v1.16.0
        "league/flysystem-aws-s3-v3": "^1.0", // 1.0.24
        "league/flysystem-cached-adapter": "^1.0", // 1.0.9
        "league/html-to-markdown": "^4.8", // 4.9.1
        "liip/imagine-bundle": "^2.1", // 2.5.0
        "oneup/flysystem-bundle": "^3.0", // 3.7.0
        "php-http/guzzle6-adapter": "^2.0", // v2.0.2
        "phpdocumentor/reflection-docblock": "^5.2", // 5.2.2
        "sensio/framework-extra-bundle": "^5.1", // v5.6.1
        "symfony/asset": "5.0.*", // v5.0.11
        "symfony/console": "5.0.*", // v5.0.11
        "symfony/dotenv": "5.0.*", // v5.0.11
        "symfony/flex": "^1.9", // v1.21.6
        "symfony/form": "5.0.*", // v5.0.11
        "symfony/framework-bundle": "5.0.*", // v5.0.11
        "symfony/mailer": "5.0.*", // v5.0.11
        "symfony/messenger": "5.0.*", // v5.0.11
        "symfony/monolog-bundle": "^3.5", // v3.6.0
        "symfony/property-access": "5.0.*|| 5.1.*", // v5.1.11
        "symfony/property-info": "5.0.*|| 5.1.*", // v5.1.10
        "symfony/routing": "5.1.*", // v5.1.11
        "symfony/security-bundle": "5.0.*", // v5.0.11
        "symfony/sendgrid-mailer": "5.0.*", // v5.0.11
        "symfony/serializer": "5.0.*|| 5.1.*", // v5.1.10
        "symfony/twig-bundle": "5.0.*", // v5.0.11
        "symfony/validator": "5.0.*", // v5.0.11
        "symfony/webpack-encore-bundle": "^1.4", // v1.11.1
        "symfony/yaml": "5.0.*", // v5.0.11
        "twig/cssinliner-extra": "^2.12", // v2.14.3
        "twig/extensions": "^1.5", // v1.5.4
        "twig/extra-bundle": "^2.12|^3.0", // v3.3.0
        "twig/inky-extra": "^2.12", // v2.14.3
        "twig/twig": "^2.12|^3.0" // v2.14.4
    },
    "require-dev": {
        "doctrine/doctrine-fixtures-bundle": "^3.0", // 3.4.0
        "fakerphp/faker": "^1.13", // v1.13.0
        "symfony/browser-kit": "5.0.*", // v5.0.11
        "symfony/debug-bundle": "5.0.*", // v5.0.11
        "symfony/maker-bundle": "^1.0", // v1.29.1
        "symfony/phpunit-bridge": "5.0.*", // v5.0.11
        "symfony/stopwatch": "^5.1", // v5.1.11
        "symfony/var-dumper": "5.0.*", // v5.0.11
        "symfony/web-profiler-bundle": "^5.0" // v5.0.11
    }
}

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