Drupal 8 DX Changes

Future Proofing Your Drupal Skills

Piyuesh KumarQED42

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AGENDA:• Drupal 8 Api Changes:

• Module info file• Routing System• Drupal 8 CMI & Using Config inspector• Writing forms and their submit handlers in d8.• Drupal 8 new plugin system• Basic changes to oftenly uses Drupal functions.

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Info File• Info files changed to info.yml• Old info file: {d7.info}

• New info file: {d8.info.yml}

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Warning:Things are about to get...

geeky.

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ROUTING SYSTEM

• d7(hook_menu):

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D8 ROUTING SYSTEM(HOOK_MENU)

• d8 conversion(hook_menu):• Hook_menu Lives until hook_default_menu_links()

gets into core(https://drupal.org/node/2047633 )

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D8 ROUTING SYSTEM(ROUTING.YML)

• d8 conversion:• Callbacks and permissions are defined in a yml

file.{d8.routing.yml}

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D8 ROUTING SYSTEM(WRITING CONTROLLERS)

• d8 conversion:• Writing Page Callbacks

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D8 ROUTING SYSTEM(CORE CONTROLLERS)

• _form• _content• _controller• _entity_form• _entity_list• and many more..

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CONFIGURATION SCHEMA

• R.I.P variable-get/variable_set

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CONFIGURATION SCHEMA

• When would Config data get saved?

• UI changes (automatic): When the save button is clicked on an admin page, data gets written to the active store as well as db.

• Code changes (manual): use admin/config/development/sync to sync the config in code with db and active store.

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CMI(EXAMPLE)

• D7:

• D8:

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USING CONFIG INSPECTOR

• https://drupal.org/project/config_inspector/git-instructions

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WRITING FORMS AND THEIR SUBMIT HANDLERS IN D8

• FormInterface(https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Form!FormInterface.php/interface/FormInterface/8)

• SystemConfigFormBase(http://drupalcontrib.org/api/drupal/drupal!core!modules!system!lib!Drupal!system!SystemConfigFormBase.php/class/SystemConfigFormBase/8)

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EXAMPLE

• D7:

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EXAMPLE• D8:

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D8 FORMS(VALIDATION & SUBMISSION)

• function validateForm(array &$form, array &$form_state) {}

• function submitForm(array &$form, array &$form_state) {}

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D8 FORMS(SYSTEM_SETTINGS_FORM

??)• Extends SystemConfigFormBase:

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D8 FORMS(OTHER EXTENDABLE CLASSES IN CORE)

• ConfirmFormBase(https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Form!ConfirmFormBase.php/class/ConfirmFormBase/8)

• BulkFormBase(https://api.drupal.org/api/drupal/core!modules!system!lib!Drupal!system!Plugin!views!field!BulkFormBase.php/8)

• FieldInstanceFormBase

• ViewsFormBase(https://api.drupal.org/api/drupal/core!modules!views_ui!lib!Drupal!views_ui!Form!Ajax!ViewsFormBase.php/class/ViewsFormBase/8)

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WHAT HAPPENED TO DRUPAL_*_FORM FUNCTIONS?

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DRUPAL 8 NEW PLUGIN SYSTEM

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Module/hook system functions replaced with

module handler service(https://drupal.org/n

ode/1894902)

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Basic Function from d7 to d8• hook_init removed(https://drupal.org/node/2013014)• drupal_goto has been

removed(https://drupal.org/node/2023537)e.g., drupal_goto($url)=>new RedirectResponse($url);

• hook_boot has been removed(https://drupal.org/node/1909596)• $_GET[‘q'] has been

removed(https://drupal.org/node/1659562)• drupal_*_form functions replaced with formBuilder service. e.g.,

drupal_get_from => \Drupal::formBuilder()->getForm()

• For more goto https://drupal.org/list-changes

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References

Demo code is available at https://github.com/piyuesh23/Drupal8-demo

• https://drupal.org/list-changes• http://previousnext.com.au/blog/controlling-access-

drupal-8-routes-access-checks• https://drupal.org/node/1800686• DrupalCon Portland Videos

(http://www.youtube.com/playlist?list=PLpeDXSh4nHjRlZKs7cj2L_kLI5osP5ERc)

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