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<?php
namespace Drupal\Core\Access;
use Symfony\Component\Routing\Route;
/**
* Provides a method for generating route paths.
*/
trait RoutePathGenerationTrait {
/**
* Generates a route path by replacing placeholders with their values.
*
* Placeholders without corresponding values in the parameters array
* are removed from the resulting path.
*
* @param \Symfony\Component\Routing\Route $route
* The route object containing the path with placeholders.
* @param array $parameters
* An associative array of parameters to replace in the route path,
* where the keys are placeholders and the values are the replacement
* values.
* @code
* Example:
* [
* 'parameter1' => 'value1',
* ]
* @endcode
* This will transform a route path such as
* '/route/path/{parameter1}{parameter2}' into '/route/path/value1'.
*
* @return string
* The generated path with all placeholders either replaced by their
* corresponding values or removed if no matching parameter exists.
*/
public function generateRoutePath(Route $route, array $parameters): string {
$path = ltrim($route->getPath(), '/');
// Replace path parameters with their corresponding values from the
// parameters array.
foreach ($parameters as $param => $value) {
if (NULL !== $value) {
$path = str_replace("{{$param}}", $value, $path);
}
}
// Remove placeholders that were not replaced.
$path = preg_replace('/\/{[^}]+}/', '', $path);
// Remove trailing slashes (multiple slashes may result from the removal of
// unreplaced placeholders).
$path = rtrim($path, '/');
return $path;
}
}
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