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administrator/components/com_content/src/Helper/ContentHelper.php

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+<?php
+
+/**
+ * @package     Joomla.Administrator
+ * @subpackage  com_content
+ *
+ * @copyright   (C) 2017 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+namespace Joomla\Component\Content\Administrator\Helper;
+
+use Joomla\CMS\Factory;
+use Joomla\CMS\Form\Form;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Table\Category;
+use Joomla\CMS\Workflow\WorkflowServiceInterface;
+use Joomla\Database\ParameterType;
+use Joomla\Registry\Registry;
+
+// phpcs:disable PSR1.Files.SideEffects
+\defined('_JEXEC') or die;
+// phpcs:enable PSR1.Files.SideEffects
+
+/**
+ * Content component helper.
+ *
+ * @since  1.6
+ */
+class ContentHelper extends \Joomla\CMS\Helper\ContentHelper
+{
+    /**
+     * Check if state can be deleted
+     *
+     * @param   int  $id  Id of state to delete
+     *
+     * @return  boolean
+     *
+     * @since   4.0.0
+     */
+    public static function canDeleteState(int $id): bool
+    {
+        $db    = Factory::getDbo();
+        $query = $db->getQuery(true);
+
+        $query->select('id')
+            ->from($db->quoteName('#__content'))
+            ->where($db->quoteName('state') . ' = :id')
+            ->bind(':id', $id, ParameterType::INTEGER);
+        $db->setQuery($query);
+        $states = $db->loadResult();
+
+        return empty($states);
+    }
+
+    /**
+     * Method to filter transitions by given id of state
+     *
+     * @param   array  $transitions  Array of transitions
+     * @param   int    $pk           Id of state
+     * @param   int    $workflowId   Id of the workflow
+     *
+     * @return  array
+     *
+     * @since   4.0.0
+     */
+    public static function filterTransitions(array $transitions, int $pk, int $workflowId = 0): array
+    {
+        return array_values(
+            array_filter(
+                $transitions,
+                function ($var) use ($pk, $workflowId) {
+                    return \in_array($var['from_stage_id'], [-1, $pk]) && $workflowId == $var['workflow_id'];
+                }
+            )
+        );
+    }
+
+    /**
+     * Prepares a form
+     *
+     * @param   Form          $form  The form to change
+     * @param   array|object  $data  The form data
+     *
+     * @return void
+     */
+    public static function onPrepareForm(Form $form, $data)
+    {
+        if ($form->getName() != 'com_categories.categorycom_content') {
+            return;
+        }
+
+        $db = Factory::getDbo();
+
+        $data = (array) $data;
+
+        // Make workflows translatable
+        Factory::getLanguage()->load('com_workflow', JPATH_ADMINISTRATOR);
+
+        $form->setFieldAttribute('workflow_id', 'default', 'inherit');
+
+        $component = Factory::getApplication()->bootComponent('com_content');
+
+        if (
+            !$component instanceof WorkflowServiceInterface
+            || !$component->isWorkflowActive('com_content.article')
+        ) {
+            $form->removeField('workflow_id', 'params');
+
+            return;
+        }
+
+        $query = $db->getQuery(true);
+
+        $query->select($db->quoteName('title'))
+            ->from($db->quoteName('#__workflows'))
+            ->where(
+                [
+                    $db->quoteName('default') . ' = 1',
+                    $db->quoteName('published') . ' = 1',
+                    $db->quoteName('extension') . ' = ' . $db->quote('com_content.article'),
+                ]
+            );
+
+        $defaulttitle = $db->setQuery($query)->loadResult();
+
+        $option = Text::_('COM_WORKFLOW_INHERIT_WORKFLOW_NEW');
+
+        if (!empty($data['id'])) {
+            $category = new Category($db);
+
+            $categories = $category->getPath((int) $data['id']);
+
+            // Remove the current category, because we search for inheritance from parent.
+            array_pop($categories);
+
+            $option = Text::sprintf('COM_WORKFLOW_INHERIT_WORKFLOW', Text::_($defaulttitle));
+
+            if (!empty($categories)) {
+                $categories = array_reverse($categories);
+
+                $query = $db->getQuery(true);
+
+                $query->select($db->quoteName('title'))
+                    ->from($db->quoteName('#__workflows'))
+                    ->where(
+                        [
+                            $db->quoteName('id') . ' = :workflowId',
+                            $db->quoteName('published') . ' = 1',
+                            $db->quoteName('extension') . ' = ' . $db->quote('com_content.article'),
+                        ]
+                    )
+                    ->bind(':workflowId', $workflow_id, ParameterType::INTEGER);
+
+                $db->setQuery($query);
+
+                foreach ($categories as $cat) {
+                    $cat->params = new Registry($cat->params);
+
+                    $workflow_id = $cat->params->get('workflow_id');
+
+                    if ($workflow_id === 'inherit') {
+                        continue;
+                    }
+
+                    if ($workflow_id === 'use_default') {
+                        break;
+                    }
+
+                    if ($workflow_id = (int) $workflow_id) {
+                        $title = $db->loadResult();
+
+                        if (!\is_null($title)) {
+                            $option = Text::sprintf('COM_WORKFLOW_INHERIT_WORKFLOW', Text::_($title));
+
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+
+        $field = $form->getField('workflow_id', 'params');
+
+        $field->addOption($option, ['value' => 'inherit']);
+
+        $field->addOption(Text::sprintf('COM_WORKFLOW_USE_DEFAULT_WORKFLOW', Text::_($defaulttitle)), ['value' => 'use_default']);
+
+        $field->addOption('- ' . Text::_('COM_CONTENT_WORKFLOWS') . ' -', ['disabled' => 'true']);
+    }
+}