Package filter in the Extensions: Manage page

administrator/components/com_installer/forms/filter_manage.xml

@@ -28,6 +28,16 @@
 			<option value="">COM_INSTALLER_VALUE_CLIENT_SELECT</option>
 		</field>
 
+		<field
+			name="package_id"
+			type="package"
+			label="COM_INSTALLER_MANAGE_FILTER_PACKAGE_ID_LABEL"
+			desc="COM_INSTALLER_MANAGE_FILTER_PACKAGE_ID_DESC"
+			onchange="this.form.submit();"
+			>
+			<option value="">COM_INSTALLER_VALUE_PACKAGE_ID_SELECT</option>
+		</field>
+
 		<field
 			name="type"
 			type="type"

administrator/components/com_installer/src/Field/PackageField.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * @package     Joomla.Administrator
+ * @subpackage  com_installer
+ *
+ * @copyright   (C) 2022 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+namespace Joomla\Component\Installer\Administrator\Field;
+
+use Joomla\CMS\Form\Field\ListField;
+use Joomla\Component\Installer\Administrator\Helper\InstallerHelper;
+
+/**
+ * Package field.
+ *
+ * Selects the extension ID of an extension of the "package" type.
+ *
+ * @since __DEPLOY_VERSION__
+ */
+class PackageField extends ListField
+{
+	/**
+	 * Method to get the field options.
+	 *
+	 * @return  array  The field option objects.
+	 * @since   __DEPLOY_VERSION__
+	 */
+	protected function getOptions()
+	{
+		$options = InstallerHelper::getPackageOptions();
+
+		return array_merge($options, parent::getOptions());
+	}
+
+}

administrator/components/com_installer/src/Helper/InstallerHelper.php

@@ -16,6 +16,7 @@
 use Joomla\CMS\HTML\HTMLHelper;
 use Joomla\CMS\Language\Text;
 use Joomla\CMS\Object\CMSObject;
+use Joomla\Database\DatabaseDriver;
 use Joomla\Database\ParameterType;
 use SimpleXMLElement;
 
@@ -119,6 +120,64 @@ public static function getStateOptions()
 		return $options;
 	}
 
+	/**
+	 * Get a list of filter options for extensions of the "package" type.
+	 *
+	 * @return  array
+	 * @since   __DEPLOY_VERSION__
+	 */
+	public static function getPackageOptions(): array
+	{
+		$options = [];
+
+		/** @var DatabaseDriver $db The application's database driver object */
+		$db         = Factory::getContainer()->get('DatabaseDriver');
+		$query      = $db->getQuery(true)
+			->select(
+				[
+					$db->quoteName('extension_id'),
+					$db->quoteName('name'),
+					$db->quoteName('element')
+				]
+			)
+			->from($db->quoteName('#__extensions'))
+			->where($db->quoteName('type') . ' = ' . $db->quote('package'));
+		$extensions = $db->setQuery($query)->loadObjectList() ?: [];
+
+		if (empty($extensions))
+		{
+			return $options;
+		}
+
+		$language  = Factory::getApplication()->getLanguage();
+		$arrayKeys = array_map(
+			function (object $entry) use ($language): string
+			{
+				$language->load($entry->element, JPATH_ADMINISTRATOR);
+
+				return Text::_($entry->name);
+			},
+			$extensions
+		);
+		$arrayValues = array_map(
+			function (object $entry): int
+			{
+				return $entry->extension_id;
+			},
+			$extensions
+		);
+
+		$extensions = array_combine($arrayKeys, $arrayValues);
+		ksort($extensions);
+
+		foreach ($extensions as $label => $id)
+		{
+			$options[] = HTMLHelper::_('select.option', $id, $label);
+		}
+
+		return $options;
+	}
+
 	/**
 	 * Get a list of filter options for the application statuses.
 	 *

administrator/components/com_installer/src/Model/ManageModel.php

@@ -80,6 +80,7 @@ protected function populateState($ordering = 'name', $direction = 'asc')
 		// Load the filter state.
 		$this->setState('filter.search', $this->getUserStateFromRequest($this->context . '.filter.search', 'filter_search', '', 'string'));
 		$this->setState('filter.client_id', $this->getUserStateFromRequest($this->context . '.filter.client_id', 'filter_client_id', null, 'int'));
+		$this->setState('filter.package_id', $this->getUserStateFromRequest($this->context . '.filter.package_id', 'filter_package_id', null, 'int'));
 		$this->setState('filter.status', $this->getUserStateFromRequest($this->context . '.filter.status', 'filter_status', '', 'string'));
 		$this->setState('filter.type', $this->getUserStateFromRequest($this->context . '.filter.type', 'filter_type', '', 'string'));
 		$this->setState('filter.folder', $this->getUserStateFromRequest($this->context . '.filter.folder', 'filter_folder', '', 'string'));
@@ -329,11 +330,12 @@ protected function getListQuery()
 			->where('state = 0');
 
 		// Process select filters.
-		$status   = $this->getState('filter.status', '');
-		$type     = $this->getState('filter.type');
-		$clientId = $this->getState('filter.client_id', '');
-		$folder   = $this->getState('filter.folder');
-		$core     = $this->getState('filter.core', '');
+		$status    = $this->getState('filter.status', '');
+		$type      = $this->getState('filter.type');
+		$clientId  = $this->getState('filter.client_id', '');
+		$folder    = $this->getState('filter.folder');
+		$core      = $this->getState('filter.core', '');
+		$packageId = $this->getState('filter.package_id', '');
 
 		if ($status !== '')
 		{
@@ -367,6 +369,17 @@ protected function getListQuery()
 				->bind(':clientid', $clientId, ParameterType::INTEGER);
 		}
 
+		if ($packageId !== '')
+		{
+			$packageId = (int) $packageId;
+			$query->where(
+				'((' . $db->quoteName('package_id') . ' = :package_id) OR '
+				. '(' . $db->quoteName('extension_id') . ' = :package_id_2))'
+			)
+				->bind(':package_id', $packageId, ParameterType::INTEGER)
+				->bind(':package_id_2', $packageId, ParameterType::INTEGER);
+		}
+
 		if ($folder)
 		{
 			$folder = $folder === '*' ? '' : $folder;

administrator/language/en-GB/com_installer.ini

@@ -102,6 +102,8 @@ COM_INSTALLER_LANGUAGES_AVAILABLE_LANGUAGES="Available Languages"
 COM_INSTALLER_LANGUAGES_FILTER_SEARCH_DESC="Search in language name and language tag."
 COM_INSTALLER_LANGUAGES_FILTER_SEARCH_LABEL="Search Languages"
 COM_INSTALLER_LANGUAGES_TABLE_CAPTION="Table of Available Languages"
+COM_INSTALLER_MANAGE_FILTER_PACKAGE_ID_LABEL="Package"
+COM_INSTALLER_MANAGE_FILTER_PACKAGE_ID_DESC="Search for a package extension and extensions included with that package extension."
 COM_INSTALLER_MANAGE_FILTER_SEARCH_DESC="Search in extension name. Prefix with ID: to search for an extension ID."
 COM_INSTALLER_MANAGE_FILTER_SEARCH_LABEL="Search Extensions"
 COM_INSTALLER_MANAGE_TABLE_CAPTION="Table of Extensions"
@@ -280,6 +282,7 @@ COM_INSTALLER_VALUE_CORE_SELECT="- Select Extensions -"
 COM_INSTALLER_VALUE_CORE_YES="Core Extensions"
 COM_INSTALLER_VALUE_FOLDER_NONAPPLICABLE="N/A"
 COM_INSTALLER_VALUE_FOLDER_SELECT="- Select Folder -"
+COM_INSTALLER_VALUE_PACKAGE_ID_SELECT="- Package -"
 COM_INSTALLER_VALUE_STATE_SELECT="- Select Status -"
 COM_INSTALLER_VALUE_SUPPORTED_EXISTS="Download Key valid"
 COM_INSTALLER_VALUE_SUPPORTED_MISSING="Download Key invalid"