I hope you take something away...

Problem

I need to override the email validation service so that we can use a custom validation .

Solution

There are a few step to follow for this solution. Find the service that provides the validation service

1. Find the service and the file 
   • There are a couple of ways to find the service
     1. GOTO https://api.drupal.org/api/drupal/services and just serach for it
     2. Use Drupal console 

        drupal debug:container | grep email

Problem

I want to change the title and controller of the '/user/reset/{uid}/{timestamp}/{hash}'

Problem

I want to add a link to my content page that will dynamically change/replace content on the page using AJAX.

Solution

The solution here is add a route and to write a call back that will respond accordingly. The only difference here is 

• The link is not a a normal link but a link that will load using a AJAX call
• The Response here is also not normal it will be a  AjaxResponse

So lets see how we can do this

The core_version_requirement key specifies what versions of Drupal that the module is compatible with.

 

name: Example
type: module
core: 8.x
core_version_requirement: ^8 || ^9

 

The above example  says that the module is compatible with Drupal 9 and Drupal 9. Notice that the core key is still compulsory here

The chnage

After Drupal 8.8.0 we will not need the core key anymore.

The purpose of the lock file is to record the exact versions of packages that are installed for your application on your environment. The content of the file is managed by composer and is not manually edited.

When the composer.lock file exists the composer install command will install the exact versions on the lock file and basically ignore the composer.json file.

How to make drupal install notice the composer.json again

Well simply you can

Problem:

I want to use the address field in a custom form which can be fulfilled with the below code

$form['address'] = [
  '#type' => 'address',
  '#required' => TRUE,
];

This would print the following fields

Now what if we want to hide some the above fields

Problem:

I need to place a block added by another module on my page. I cannot add it by placing the block on a region. Because there is specific placement on the content region itself

Solution:

Add the block programatically to the page. We can get the block content programatically on a hook_preprocess function and add it to the $variables to print on the twig template

Problem:

I need to redirect a form to a specific URL on submit

Solution

1. Add a custom submit on hook_form_alter();

   • Use either of the lines below

Problem

I have 3D object file (ex:- car.obj) and want to load it with ThreeJS on a browser

Solution

The solution is in the ThreeJS library itself. We can use the utils in the ThreeJS library (three.js/utils/converters/).  In the utils/converters folder you will see the following JS files

Just follow this document

https://www.jetbrains.com/help/phpstorm/configuring-xdebug.html

You might need to restart PHP so you can do this using the following command (command will change according the PHP version you have).

brew services restart php@7.1