Drupal 8 images with image style - image

Question

In drupal 7, i use function image_style_url('style', uri) to generate new image with style and return image's path. so what will be instead of it in drupal 8? thanks

Answer 1

Per the change records:
use Drupal\image\Entity\ImageStyle;
$path = 'public://images/image.jpg';
$url = ImageStyle::load('style_name')->buildUrl($path);

Answer 2

You should try to use the new Drupal functions wherever possible.
Instead, use:
use Drupal\file\Entity\File;
use Drupal\image\Entity\ImageStyle;
$fid = 123;
$file = File::load($fid);
$image_uri = ImageStyle::load('your_style-name')->buildUrl($file->getFileUri());
Edited as per https://www.drupal.org/node/2050669:
$original_image = 'public://images/image.jpg';
// Load the image style configuration entity
use Drupal\image\Entity\ImageStyle;
$style = ImageStyle::load('thumbnail');
$uri = $style->buildUri($original_image);
$url = $style->buildUrl($original_image);

Answer 3

In your Controllers and other OOP part of Drupal you can use :
use Drupal\image\Entity\ImageStyle;
$path = 'public://images/image.jpg';
$url = ImageStyle::load('style_name')->buildUrl($path);
And in YOUR_THEME.theme file while Error: Class 'ImageStyle' not found in YOURTHEMENAME_preprocess_node you can do it with the follwing
$path = 'public://images/image.jpg';
$style = \Drupal::entityTypeManager()->getStorage('image_style')->load('thumbnail');
$url = $style->buildUrl($path);
Another method is provide a renderable array and let the drupal Render engine render it.
$render = [
'#theme' => 'image_style',
'#style_name' => 'thumbnail',
'#uri' => $path,
// optional parameters
];

Answer 4

I have found that I often want to preprocess the image to apply an image style to an image on a node or a paragraph type. In many cases I have created a paragraph that allows the user to choose the width of the image as a percentage. In the preprocess I would check the value of the width and apply the correct image style.
use Drupal\image\Entity\ImageStyle;
function THEME_preprocess_paragraph__basic_content(&$vars) {
//get the paragraph
$paragraph = $vars['paragraph'];
//get the image
$images = $paragraph->get('field_para_image');
//get the images value, in my case I only have one required image, but if you have unlimited image, you could loop thru $images
$uri = $images[0]->entity->uri->value;
//This is my field that determines the width the user wants for the image and is used to determine the image style
$preset = $paragraph->get('field_column_width')->value;
$properties = array();
$properties['title'] = $images[0]->getValue()['title'];
$properties['alt'] = $images[0]->getValue()['alt'];
//this is where the Image style is applied
switch($preset) {
case 'image-20':
$properties['uri'] = ImageStyle::load('width_20_percent')->buildUrl($uri);
break;
case 'image-45':
$properties['uri'] = ImageStyle::load('width_45_percent')->buildUrl($uri);
break;
case 'image-55':
$properties['uri'] = ImageStyle::load('width_55_percent')->buildUrl($uri);
break;
case 'image-100':
$properties['uri'] = ImageStyle::load('width_100_percent')->buildUrl($uri);
break;
}
//assign to a variable that the twig template can use
$vars['basic_image_display'] = $properties;
}
In this example, I am preprocessing a specific paragraph type named "basic_content" but you can do the same thing with a node preprocess. Continuing my example, I would have a twig template named paragraph--basic_content.html.twig to handle the display of that paragraph type.
Displaying the image would be something like this in the twig file.
<img class="img-responsive" src="{{basic_image_display['uri']}}" alt="{{ basic_image_display['alt'] }}" title="{{ basic_image_display['title'] }}"/>

Answer 5

$view_mode = $variables['content']['field_media_image']['0']['#view_mode'];
$display_content = \Drupal::service('entity_display.repository')
->getViewDisplay('media', 'image', $view_mode)->build($media_entity);
$style = ImageStyle::load($display_content['image'][0]['#image_style']); $original_image = $media_entity->get('image')->entity->getFileUri();
$destination = $style->buildUri($original_image);
This is how you get image style from a media image entity.

Answer 6

Works for me from a classic Drupal database Query in .module file :
$query = \Drupal::database()->select('file_managed', 'f' );
$query->addField('f', 'uri');
$pictures = $query->execute()->fetchAll();
foreach ($pictures as $key => $picture) {
$largePictureUri = entity_load('image_style', 'large')->buildUrl($picture->uri);
}

Answer 7

I used in Drupal 8 this code. It's working fine.
$fid = 374; //get your file id, this value just for example
$fname = db_select('file_managed', 'f')->fields('f', array('filename'))->condition('f.fid', $fid)->execute()->fetchField();
$url = entity_load('image_style', 'YOUR_STYLE_NAME')->buildUrl($fname);