ConfigEntityDependency.php

<?php

namespace Drupal\Core\Config\Entity;

use Drupal\Component\Utility\NestedArray;

/**
 * Provides a value object to discover configuration dependencies.
 *
 * @see \Drupal\Core\Config\Entity\ConfigDependencyManager
 */
class ConfigEntityDependency {
    
    /**
     * The configuration entity's configuration object name.
     *
     * @var string
     */
    protected $name;
    
    /**
     * The configuration entity's dependencies.
     *
     * @var array
     */
    protected $dependencies = [];
    
    /**
     * Constructs the configuration entity dependency from the entity values.
     *
     * @param string $name
     *   The configuration entity's configuration object name.
     * @param array $values
     *   (optional) The configuration entity's values.
     */
    public function __construct($name, $values = []) {
        $this->name = $name;
        if (isset($values['dependencies']) && isset($values['dependencies']['enforced'])) {
            // Merge the enforced dependencies into the list of dependencies.
            $enforced_dependencies = $values['dependencies']['enforced'];
            unset($values['dependencies']['enforced']);
            $this->dependencies = NestedArray::mergeDeep($values['dependencies'], $enforced_dependencies);
        }
        elseif (isset($values['dependencies'])) {
            $this->dependencies = $values['dependencies'];
        }
    }
    
    /**
     * Gets the configuration entity's dependencies of the supplied type.
     *
     * @param string $type
     *   The type of dependency to return. Either 'module', 'theme', 'config' or
     *   'content'.
     *
     * @return array
     *   The list of dependencies of the supplied type.
     */
    public function getDependencies($type) {
        $dependencies = [];
        if (isset($this->dependencies[$type])) {
            $dependencies = $this->dependencies[$type];
        }
        if ($type == 'module') {
            $dependencies[] = substr($this->name, 0, strpos($this->name, '.'));
        }
        return $dependencies;
    }
    
    /**
     * Determines if the entity is dependent on extensions or entities.
     *
     * @param string $type
     *   The type of dependency being checked. Either 'module', 'theme', 'config'
     *   or 'content'.
     * @param string $name
     *   The specific name to check. If $type equals 'module' or 'theme' then it
     *   should be a module name or theme name. In the case of entity it should be
     *   the full configuration object name.
     *
     * @return bool
     */
    public function hasDependency($type, $name) {
        // A config entity is always dependent on its provider.
        if ($type == 'module' && strpos($this->name, $name . '.') === 0) {
            return TRUE;
        }
        return isset($this->dependencies[$type]) && array_search($name, $this->dependencies[$type]) !== FALSE;
    }
    
    /**
     * Gets the configuration entity's configuration dependency name.
     *
     * @see \Drupal\Core\Entity\EntityInterface::getConfigDependencyName()
     *
     * @return string
     *   The configuration dependency name for the entity.
     */
    public function getConfigDependencyName() {
        return $this->name;
    }

}