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[[TOC]]

Dependencies

  • d3.js: Webprofiler module requires D3 library 3.x (not 4.x) to render data.
  • highlight.js: Webprofiler module requires highlight 9.7.x library to syntax highlight collected queries.

If you use Composer to manage dependencies, edit composer.json as follows:

  1. Run composer require composer/installers to ensure that you have the composer/installers package installed. This package facilitates the installation of packages into directories other than /vendor (e.g. /libraries) using Composer.
  2. Add the following to the installer-paths section of composer.json:
    "libraries/{$name}": ["type:drupal-library"],
    
    When you are using the drupal-composer/drupal-project template add the following instead:
    "web/libraries/{$name}": ["type:drupal-library"],
    
  3. Add the following to the "repositories" section of composer.json:
    {
        "type": "package",
        "package": {
            "name": "d3/d3",
            "version": "v3.5.17",
            "type": "drupal-library",
            "source": {
                "url": "https://github.com/d3/d3.git",
                "type": "git",
                "reference": "tags/v3.5.17"
            }
        }
    },
    {
        "type": "package",
        "package": {
            "name": "highlightjs/highlightjs",
            "version": "11.2.0",
            "type": "drupal-library",
            "source": {
                "url": "https://github.com/highlightjs/highlight.js.git",
                "type": "git",
                "reference": "tags/11.2.0"
            }
        }
    }
    
  4. Run composer require d3/d3 highlightjs/highlightjs - you should find that new directories have been created under libraries

Install manually

Each class name discovered while profiling (controller class, event class) is specially linked to open the class in an IDE. You can configure the URLs for these links to work for your IDE.

Timeline

It is also possible to collect the time needed to instantiate every single service used in a request.

Add the following two lines to settings.php (or, even better, to settings.local.php):

```
$class_loader->addPsr4('Drupal\\webprofiler\\', [ __DIR__ . '/../../modules/contrib/devel/webprofiler/src']);
$settings['container_base_class'] = '\Drupal\webprofiler\DependencyInjection\TraceableContainer';
```

Check if the path from the Webprofiler module in your settings.php file matches the location of the installed Webprofiler module in your project.