[4.0] Check on the component if the categories support is available

administrator/components/com_categories/Model/CategoriesModel.php

@@ -10,6 +10,7 @@
 
 defined('_JEXEC') or die;
 
+use Joomla\CMS\Association\AssociationServiceInterface;
 use Joomla\CMS\Categories\CategoriesServiceInterface;
 use Joomla\CMS\Factory;
 use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
@@ -326,15 +327,24 @@ public function getAssoc()
 		if (!$assoc || !$component || !$cname)
 		{
 			$assoc = false;
+
+			return $assoc;
 		}
-		else
+
+		$componentObject = $this->bootComponent($component);
+
+		if ($componentObject instanceof AssociationServiceInterface && $componentObject instanceof CategoriesServiceInterface)
 		{
-			$hname = $cname . 'HelperAssociation';
-			\JLoader::register($hname, JPATH_SITE . '/components/' . $component . '/helpers/association.php');
+			$assoc = true;
 
-			$assoc = class_exists($hname) && !empty($hname::$category_association);
+			return $assoc;
 		}
 
+		$hname = $cname . 'HelperAssociation';
+		\JLoader::register($hname, JPATH_SITE . '/components/' . $component . '/helpers/association.php');
+
+		$assoc = class_exists($hname) && !empty($hname::$category_association);
+
 		return $assoc;
 	}
 

administrator/components/com_categories/Model/CategoryModel.php

@@ -10,7 +10,10 @@
 
 defined('_JEXEC') or die;
 
+use Joomla\CMS\Association\AssociationServiceInterface;
+use Joomla\CMS\Categories\CategoriesServiceInterface;
 use Joomla\CMS\Component\ComponentHelper;
+use Joomla\CMS\Factory;
 use Joomla\CMS\Helper\TagsHelper;
 use Joomla\CMS\Language\Associations;
 use Joomla\CMS\Language\LanguageHelper;
@@ -1281,15 +1284,24 @@ public function getAssoc()
 		if (!$assoc || !$component || !$cname)
 		{
 			$assoc = false;
+
+			return $assoc;
 		}
-		else
+
+		$componentObject = $this->bootComponent($component);
+
+		if ($componentObject instanceof AssociationServiceInterface && $componentObject instanceof CategoriesServiceInterface)
 		{
-			$hname = $cname . 'HelperAssociation';
-			\JLoader::register($hname, JPATH_SITE . '/components/' . $component . '/helpers/association.php');
+			$assoc = true;
 
-			$assoc = class_exists($hname) && !empty($hname::$category_association);
+			return $assoc;
 		}
 
+		$hname = $cname . 'HelperAssociation';
+		\JLoader::register($hname, JPATH_SITE . '/components/' . $component . '/helpers/association.php');
+
+		$assoc = class_exists($hname) && !empty($hname::$category_association);
+
 		return $assoc;
 	}
 }

administrator/components/com_contact/helpers/associations.php

@@ -47,6 +47,21 @@ class ContactAssociationsHelper extends AssociationExtensionHelper
 	 */
 	protected $associationsSupport = true;
 
+	/**
+	 * Method to get the associations for a given item.
+	 *
+	 * @param   integer  $id    Id of the item
+	 * @param   string   $view  Name of the view
+	 *
+	 * @return  array   Array of associations for the item
+	 *
+	 * @since  __DEPLOY_VERSION__
+	 */
+	public function getAssociationsForItem($id = 0, $view = null)
+	{
+		return \ContactHelperAssociation::getAssociations($id, $view);
+	}
+
 	/**
 	 * Get the associated items for an item
 	 *

administrator/components/com_content/Helper/AssociationsHelper.php

@@ -14,6 +14,7 @@
 use Joomla\CMS\Association\AssociationExtensionHelper;
 use Joomla\CMS\Language\Associations;
 use Joomla\CMS\Table\Table;
+use Joomla\Component\Content\Site\Helper\AssociationHelper;
 
 /**
  * Content associations helper.
@@ -49,6 +50,21 @@ class AssociationsHelper extends AssociationExtensionHelper
 	 */
 	protected $associationsSupport = true;
 
+	/**
+	 * Method to get the associations for a given item.
+	 *
+	 * @param   integer  $id    Id of the item
+	 * @param   string   $view  Name of the view
+	 *
+	 * @return  array   Array of associations for the item
+	 *
+	 * @since  __DEPLOY_VERSION__
+	 */
+	public function getAssociationsForItem($id = 0, $view = null)
+	{
+		return AssociationHelper::getAssociations($id, $view);
+	}
+
 	/**
 	 * Get the associated items for an item
 	 *

administrator/components/com_menus/Helper/AssociationsHelper.php

@@ -49,6 +49,21 @@ class AssociationsHelper extends AssociationExtensionHelper
 	 */
 	protected $associationsSupport = true;
 
+	/**
+	 * Method to get the associations for a given item.
+	 *
+	 * @param   integer  $id    Id of the item
+	 * @param   string   $view  Name of the view
+	 *
+	 * @return  array   Array of associations for the item
+	 *
+	 * @since  __DEPLOY_VERSION__
+	 */
+	public function getAssociationsForItem($id = 0, $view = null)
+	{
+		return [];
+	}
+
 	/**
 	 * Get the associated items for an item
 	 *

administrator/components/com_newsfeeds/helpers/associations.php

@@ -47,6 +47,21 @@ class NewsfeedsAssociationsHelper extends AssociationExtensionHelper
 	 */
 	protected $associationsSupport = true;
 
+	/**
+	 * Method to get the associations for a given item.
+	 *
+	 * @param   integer  $id    Id of the item
+	 * @param   string   $view  Name of the view
+	 *
+	 * @return  array   Array of associations for the item
+	 *
+	 * @since  __DEPLOY_VERSION__
+	 */
+	public function getAssociationsForItem($id = 0, $view = null)
+	{
+		return \NewsfeedsAssociationsHelper::getAssociations($id, $view);
+	}
+
 	/**
 	 * Get the associated items for an item
 	 *

libraries/src/Association/AssociationExtensionInterface.php

@@ -25,4 +25,16 @@ interface AssociationExtensionInterface
 	 * @since   3.7.0
 	 */
 	public function hasAssociationsSupport();
+
+	/**
+	 * Method to get the associations for a given item.
+	 *
+	 * @param   integer  $id    Id of the item
+	 * @param   string   $view  Name of the view
+	 *
+	 * @return  array   Array of associations for the item
+	 *
+	 * @since  __DEPLOY_VERSION__
+	 */
+	public function getAssociationsForItem($id = 0, $view = null);
 }

modules/mod_languages/Helper/LanguagesHelper.php

@@ -11,6 +11,7 @@
 
 defined('_JEXEC') or die;
 
+use Joomla\CMS\Association\AssociationServiceInterface;
 use Joomla\CMS\Factory;
 use Joomla\CMS\Uri\Uri;
 use Joomla\CMS\Language\LanguageHelper;
@@ -67,13 +68,22 @@ public static function getList(&$params)
 				$associations = \MenusHelper::getAssociations($active->id);
 			}
 
-			// Load component associations
-			$class = str_replace('com_', '', $app->input->get('option')) . 'HelperAssociation';
-			\JLoader::register($class, JPATH_COMPONENT_SITE . '/helpers/association.php');
+			$component = $app->bootComponent($app->input->get('option'));
 
-			if (class_exists($class) && is_callable(array($class, 'getAssociations')))
+			if ($component instanceof AssociationServiceInterface)
 			{
-				$cassociations = call_user_func(array($class, 'getAssociations'));
+				$cassociations = $component->getAssociationsExtension()->getAssociationsForItem();
+			}
+			else
+			{
+				// Load component associations
+				$class = str_replace('com_', '', $app->input->get('option')) . 'HelperAssociation';
+				\JLoader::register($class, JPATH_COMPONENT_SITE . '/helpers/association.php');
+
+				if (class_exists($class) && is_callable(array($class, 'getAssociations')))
+				{
+					$cassociations = call_user_func(array($class, 'getAssociations'));
+				}
 			}
 		}
 

plugins/system/languagefilter/languagefilter.php

@@ -9,6 +9,7 @@
 
 defined('_JEXEC') or die;
 
+use Joomla\CMS\Association\AssociationServiceInterface;
 use Joomla\CMS\Uri\Uri;
 use Joomla\CMS\Factory;
 use Joomla\CMS\Router\Route;
@@ -779,12 +780,22 @@ public function onAfterDispatch()
 
 			// Load component associations.
 			$option = $this->app->input->get('option');
-			$cName = StringHelper::ucfirst(StringHelper::str_ireplace('com_', '', $option)) . 'HelperAssociation';
-			JLoader::register($cName, JPath::clean(JPATH_COMPONENT_SITE . '/helpers/association.php'));
 
-			if (class_exists($cName) && is_callable(array($cName, 'getAssociations')))
+			$component = $this->app->bootComponent($option);
+
+			if ($component instanceof AssociationServiceInterface)
+			{
+				$cassociations = $component->getAssociationsExtension()->getAssociationsForItem();
+			}
+			else
 			{
-				$cassociations = call_user_func(array($cName, 'getAssociations'));
+				$cName = StringHelper::ucfirst(StringHelper::str_ireplace('com_', '', $option)) . 'HelperAssociation';
+				JLoader::register($cName, JPath::clean(JPATH_COMPONENT_SITE . '/helpers/association.php'));
+
+				if (class_exists($cName) && is_callable(array($cName, 'getAssociations')))
+				{
+					$cassociations = call_user_func(array($cName, 'getAssociations'));
+				}
 			}
 
 			// For each language...