Migrating to Symfony 4

This talk goes through the process of migrating your existing Symfony 2/3 application to Symfony 4 using the new Flex-style directory structure.

Transcript

1. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   Migrating to Symfony 4
   1
   from Symfony 2 & 3
   

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2. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   2
   Denis Brumann
   
   Software Developer
   
   Berlin, Germany
   

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3. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   3
   https://symfony.com/doc/current/contributing/community/releases.html
   

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4. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   4
   https://symfony.com/roadmap
   Symfony Version End of Support End Of Security Fixes
   2.8 (LTS) November 2018 November 2019
   3.4 (LTS) November 2020 November 2021
   4.0 July 2018 January 2019
   

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5. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   5
   Flex is not your only option
   

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6. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
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7. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   7
   https://symfony.com/blog/new-in-symfony-3-3-persisted-deprecation-logs
   

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8. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   8
   Step 1: Add symfony/flex as a dependency
   from Symfony 3.4
   

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9. Denis Brumann

   @dbrumann

   denis.brumann@sensiolabs.de
   9
   Step 2: Remove the symfony/symfony package
   

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10. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    10
    Step 3: Make sure symfony/symfony is not kept
    

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11. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    11
    optionally: stay with Symfony 3.4 first
    

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12. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Step 4: Manually require your Symfony dependencies
    

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13. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Step 5: Copy & adjust your configuration
    

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14. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Symfony 3
    Symfony 4
    

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15. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Symfony 3
    Symfony 4
    

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16. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    14
    Symfony 3
    Symfony 4
    

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17. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    15
    

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18. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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19. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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20. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    16
    

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21. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    16
    

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22. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    16
    

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23. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    16
    

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24. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
    16
    

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25. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Step 6a: Move src/AppBundle/* to src/*
    Step 6b: Move namespace AppBundle\ to
    App\
    Step 6c: Update autoload-section in
    composer.json
    

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26. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Step 7: Move templates, translations & assets
    

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27. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Step 8: Create public/index.php
    

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28. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Step 9: Create bin/console
    

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29. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    https://symfony.com/doc/current/setup/flex.html#upgrade-to-flex
    https://symfony.com/doc/current/setup/upgrade_major.html
    

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30. Denis Brumann

    @dbrumann

    denis.brumann@sensiolabs.de
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    Questions?
    

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