Rolando rpayanm

If you want to remove the commit altogether (and every commit that came after that)

git reset --hard adca297de~ //(assuming the commit's hash is adca297de). 
git push origin -f

Create tag

git tag -a v1.9.3 -m "v1.9.3"

Push tag

git push origin tag v1.9.3

Delete remote tag

Generates an absolute URL given a route name and parameters:

url($name, $parameters = [], $options = [])

Example:

url('entity.node.canonical', {'node': 42})

Result:

EntityQuery Conditions

The EntityQuery class can be loaded manually (if you know the entity type):

$query = \Drupal::service('entity_type.manager')->getStorage('node')->getQuery();

public function condition($field, $value = NULL, $operator = NULL, $langcode = NULL);

The $operator can take one of several options see core/lib/Drupal/Core/Entity/Query/QueryInterface.php::condition

Want the 30-second version?

Generate URLs with `\Drupal\Core\Url`

// From a route.
$url = Url::fromRoute('contact.site_page');
// From a URI.
$url = Url::fromUri('http://example.com');

Make Strings Translatable

Placeholders

@variable

Use this style of placeholder for most use-cases. Special characters in the text will be converted to HTML entities.

t('Hello @name, welcome back!', array('@name' => $user->getDisplayName()));

Output example:

Para acceder al valor de un campo field_date:

$timestamp = $node->field_date->date->getTimestamp();

	<?php

	// LOAD
	// You can load up the menu tree with MenuLinkTree::load, which will give you an array of menu links to work with. From there it's just a matter of looping through and getting what you need, e.g.
	$tree = \Drupal::menuTree()->load('main', new \Drupal\Core\Menu\MenuTreeParameters());
	foreach ($tree as $item) {
	$title = $item->link->getTitle();
	$url_obj = $item->link->getUrlObject();
	$has_children = $item->hasChildren;
	// etc...

	<?php

	// node, block, block_content, user, view, fiel, taxonomy_term, menu, menu_link_content, migration, ...
	$storage = 'block';
	$service = \Drupal::service('entity_type.manager')->getStorage($storage);

	// LOAD
	// One entity
	$entity = $service->load($id);