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Creating a Block in Drupal 10 Programmatically

Drupal's great feature is Custom Block. blocks are easy and fast to set in any region, with Drupal9 you can even set the same block in a few regions.
There are a few technical options to create a block, here we will overview the programming option only.
so, what is a block?
Blocks are chunks of content with ID and classes which can be placed in manipulated within the page. 

namespace Drupal\my_module\Plugin\Block;

use Drupal\Core\Block\BlockBase;
use Drupal\Core\Block\BlockPluginInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Access\AccessResult;
use Drupal\Core\Cache\UncacheableDependencyTrait;

/**
 * Provides a 'SetTask' Block.
 *
 * @Block(
 *   id = "dashboard_newtask_block",
 *   admin_label = @Translation("Dashboard New Task"),
 *   category = @Translation("DrupalVIP"),
 * )
 */
class NewTaskBlock extends BlockBase implements BlockPluginInterface {
    use UncacheableDependencyTrait;
    
    /**
    * {@inheritdoc}
    */
    public function build() {
        // Do NOT cache a page with this block on it.
        \Drupal::service('page_cache_kill_switch')->trigger(); 
        // build from form               
        $build = \Drupal::formBuilder()->getForm('Drupal\drupalvip_dashboard\Form\NewTaskForm');
        $build['#attributes']['class'][] = 'my_class';
        $build['#cache']['max-age'] = 0;
        $build['#cache']['contexts'] = [];
        $build['#cache']['tags'] = [];                   
        return $build;
    }       
  
    /**
    * {@inheritdoc}
    */
    public function blockForm($form, FormStateInterface $form_state) {
        $form = parent::blockForm($form, $form_state);
        $config = $this->getConfiguration();
        $form['block_note'] = [
            '#type' => 'textfield',
            '#title' => $this->t('Note'),
            '#description' => $this->t('block note '),
            '#default_value' => isset($config['block_note']) ? $config['block_note'] : '',
        ];
        return $form;
    }  

    /**
    * {@inheritdoc}
    */
    public function blockSubmit($form, FormStateInterface $form_state) {
        parent::blockSubmit($form, $form_state);        
        $values = $form_state->getValues();
        $this->configuration['block_note'] = $values['block_note'];
    }    
    
} // end of class

Drupal And React

Its time for a more powerful client-side with drupal, and we can do this with React

So, what is React and how can we integrate it with Drupal. I will try to answer both questions and more within this article.

React is a JavaScript library that makes it easy to create interactive user interfaces. 

Drupal is a content management system (CMS) with a powerful web services API.

How to prevent drupal to filter out style attribute from custom block code

When creating custom block, the inherit function build() return an element, usualy it include tag: #markup,

but it seems that it filter out the attributes, so how can we overwrite it correctly without the filter?

In other words we want to prevent drupal to filter out style attribute from custom block code

The '#markup' is filtered in ->ensureMarkupIsSafe(), which is called from within ->doRender().

The same does not apply to '#children' .

 

Drush: how to Import and Export mySql database

Databases have the urge to grow, in some cases they are so big to manipulate, which means that import and export is imposible with the current tools like cPanel .

The Drush team created a tool which will help us to manipulate the database, which was defined in the settings configuration, regardless its size.

pay attention, most chance that import database will be available to files which ware created by export activity.

How to change an existing Drupal form

Changing an existing form is one of the first things that new Drupal developers will learn how to do. 

It is a natural extension from site building, where you might need to change one thing on a form created by a core or contributed module. 

One of the benefits of using the Form API to construct forms is that any module can alter any other module's form. 

In this tutorial, you are going to learn how to alter a Drupal form.

React vs Angular

What is React JS?

React is a Javascript library developed by Facebook which allows you to build UI components. It facilitates the creation of interactive User Interfaces. It also makes the code easier to understand and launch. React JavaScript framework uses server-side rendering to provide a flexible, performance-oriented solution.

Composer 2.0 is now available

Massive improvements in terms of both speed and memory usage with new Composer.

The difference depends on your use case, so while I've seen reports of improvements of over 50% to both in some projects, I cannot put an exact number on it.

As a side note to this, require/remove and partial updates are now much faster because Composer will now only load the metadata of the packages which are being changed.

Drush Installation

Drush is a command line shell and Unix scripting interface for Drupal. Drush core ships with lots of useful commands for interacting with code like modules/themes/profiles. Similarly, it runs update.php, executes sql queries and DB migrations, and misc utilities like run cron or clear cache. Drush can be extended by 3rd party commandfiles.

PHP Interface: Why do we need that

Object interfaces allow you to create code that specifies which methods a class must implement, without having to define how these methods are implemented. Interfaces share a namespace with classes and traits, so they may not use the same name.

Interfaces are defined in the same way as a class, but with the interface keyword replacing the class keyword and without any of the methods having their contents defined.

Render API overview and Render Element

The main purpose of Drupal's Theme system is to give themes complete control over the appearance of the site, which includes the markup returned from HTTP requests and the CSS files used to style that markup.
In order to ensure that a theme can completely customize the markup, module developers should avoid directly writing HTML markup for pages, blocks, and other user-visible output in their modules, and instead return structured "render arrays" (see Render arrays below).

How to keep your session data

Sometimes you need to temporarily store information per same user, which means handling his session data, in previous version of drupal it was easy and more like handling it in PHP programming, but with drupal 8, since the desire was to do everything in OOP strategy it changed.

This article will review some of the options to handle session date which are available on drupal8.

First lets remember how it was done with drupal7: using the $_SESSION in module file during the hooking implementation

In Drupal 8 there's two services to handle session data:

77 Tools For Drupal Developer

Use these development tools to help you create Drupal sites faster and with less effort.
If you have a favorite Drupal tool that is not listed, make sure you've checked every section of this document.
Still can't find your favorite?
Please add it using the format as other listings, similar to: Toolname (Free/Commercial. FOSS/Proprietary. OS Platforms.) - Description.

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