initial working commit

README.md

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+# bbpress-better-permalinks

bbpress-better-permalinks.php

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+<?php
+/**
+ * Plugin Name: Bonnier bbPress better permalinks
+ * Version: 0.1.0
+ * Plugin URI: https://github.com/BenjaminMedia/bbpress-better-permalinks
+ * Description: This plugin gives you the ability to select a post in bbPress as the best answer
+ * Author: Bonnier - Michael Sørensen
+ * License: MIT
+ */
+
+namespace Bonnier\WP\BBPress\BetterPermalinks;
+
+
+// Do not access this file directly
+if (!defined('ABSPATH')) {
+    exit;
+}
+
+// Handle autoload so we can use namespaces
+spl_autoload_register(function ($className) {
+    if (strpos($className, __NAMESPACE__) !== false) {
+        $className = str_replace("\\", DIRECTORY_SEPARATOR, $className);
+        require_once(__DIR__ . DIRECTORY_SEPARATOR . Plugin::CLASS_DIR . DIRECTORY_SEPARATOR . $className . '.php');
+    }
+});
+
+
+class Plugin
+{
+    /**
+     * Text domain for translators
+     */
+    const TEXT_DOMAIN = 'bbpress-better-permalinks';
+
+    const CLASS_DIR = 'src';
+
+    /**
+     * @var object Instance of this class.
+     */
+    private static $instance;
+
+    public $settings;
+
+    /**
+     * @var string Filename of this class.
+     */
+    public $file;
+
+    /**
+     * @var string Basename of this class.
+     */
+    public $basename;
+
+    /**
+     * @var string Plugins directory for this plugin.
+     */
+    public $plugin_dir;
+
+    /**
+     * @var string Plugins url for this plugin.
+     */
+    public $plugin_url;
+
+    /**
+     * Do not load this more than once.
+     */
+    private function __construct()
+    {
+        // Set plugin file variables
+        $this->file = __FILE__;
+        $this->basename = plugin_basename($this->file);
+        $this->plugin_dir = plugin_dir_path($this->file);
+        $this->plugin_url = plugin_dir_url($this->file);
+
+        // Load textdomain
+        load_plugin_textdomain(self::TEXT_DOMAIN, false, dirname($this->basename) . '/languages');
+    }
+
+    private function bootstrap()
+    {
+        Permalinks::bootstrap();
+    }
+
+    /**
+     * Returns the instance of this class.
+     */
+    public static function instance()
+    {
+        if (!self::$instance) {
+            self::$instance = new self;
+            global $bbpress_better_permalinks;
+            $bbpress_better_permalinks = self::$instance;
+            self::$instance->bootstrap();
+
+            /**
+             * Run after the plugin has been loaded.
+             */
+            do_action('bbpress_better_permalinks_loaded');
+        }
+
+        return self::$instance;
+    }
+
+}
+
+/**
+ * @return Plugin $instance returns an instance of the plugin
+ */
+function instance()
+{
+    return Plugin::instance();
+}
+
+add_action('plugins_loaded', __NAMESPACE__ . '\instance', 0);

composer.json

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+{
+  "name": "bonnier/bbpress-better-permalinks",
+  "description": "Better permalinks for topics in bbPress",
+  "type": "wordpress-plugin",
+  "keywords": ["wordpress", "plugin", "bbPress"],
+  "homepage": "https://github.com/BenjaminMedia/bbpress-better-permalinks",
+  "repositories":[
+    {
+      "type": "composer",
+      "url": "http://wpackagist.org"
+    }
+  ],
+  "authors": [
+    {
+      "name": "Bonnier Publications",
+      "email": "[email protected]",
+      "homepage": "http://bonnierpublications.com"
+    },
+    {
+      "name": "Alf Henderson",
+      "email": "[email protected]"
+    }
+  ],
+  "support": {
+    "issues": "https://github.com/BenjaminMedia/bbpress-better-permalinks/issues",
+    "source": "https://github.com/BenjaminMedia/bbpress-better-permalinks"
+  },
+  "autoload": {
+    "psr-4": {
+      "Bonnier\\WP\\BBPress\\BetterPermalinks\\": "src/Bonnier/WP/BBPress/BetterPermalinks/"
+    }
+  },
+  "require": {
+    "php": ">=5.6"
+  }
+}

src/Bonnier/WP/BBPress/BetterPermalinks/Permalinks.php

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+<?php
+
+namespace Bonnier\WP\BBPress\BetterPermalinks;
+
+/**
+ * Class Permalinks
+ *
+ * @package \Bonnier\WP\BBPress\BetterPermalinks
+ */
+class Permalinks
+{
+    public static function bootstrap()
+    {
+        if (!did_action('bbp_after_setup_actions')) {
+            add_action('bbp_after_setup_actions', [__CLASS__, 'after_bbPress_setup']);
+        } else {
+            static::after_bbPress_setup();
+        }
+    }
+
+    /**
+     * After bbPress Setup.
+     *
+     * @author Nashwan Doaqan
+     */
+    static function after_bbPress_setup()
+    {
+
+        if (function_exists('is_bbpress')) {
+            add_action('registered_post_type', [__CLASS__, 'add_post_types_rewrite'], 1, 2);
+            add_filter('post_type_link', [__CLASS__, 'filter_post_type_link'], 1, 2);
+        }
+
+    }
+
+    /**
+     * Add the forum parents slug structure to bbPress topics
+     *
+     *
+     * @param $postType
+     * @param $args
+     */
+    static function add_post_types_rewrite($postType, $args)
+    {
+        switch ($postType) {
+            case bbp_get_topic_post_type():
+                add_rewrite_rule(
+                    '^'.bbp_get_forum_slug().'(.+?)'.bbp_get_topic_slug().'/(.+?)/?$',
+                    'index.php?forumnames=$matches[1]&name=$matches[2]&post_type='.$postType,
+                    'top'
+                );
+                add_permastruct($postType, bbp_get_forum_slug()."%forumnames%".bbp_get_topic_slug()."/%postname%/", $args->rewrite);
+                break;
+        }
+    }
+
+    /**
+     * Change bbPress topic links to prefix forum slugs
+     *
+     * @author Nashwan Doaqan
+     *
+     * @param $post_link
+     * @param $_post
+     *
+     * @return mixed|string|void
+     */
+    static function filter_post_type_link($post_link, $_post)
+    {
+        global $wp_rewrite;
+        if (empty($_post) || $_post->post_status === 'auto-draft' || strpos('post_type', $post_link))
+            return $post_link;
+        switch ($_post->post_type) {
+            case bbp_get_topic_post_type():
+                $post_link = $wp_rewrite->get_extra_permastruct($_post->post_type);
+                $post_link = str_replace("%forumnames%", static::get_topic_parent_forums_slug($_post->ID), $post_link);
+                $post_link = str_replace("%postname%", static::get_topic_name_slug($_post), $post_link);
+                $post_link = home_url(user_trailingslashit($post_link));
+                break;
+        }
+        return $post_link;
+
+    }
+
+    static function get_topic_parent_forums_slug($topicId) {
+        $forumId = bbp_get_topic_forum_id($topicId);
+        $forumSlugs = [];
+        if($forumId === 0) { // means the topic belongs to no forum
+            return '/no-forum/';
+        }
+        $forum = get_post($forumId);
+        $hasParent = true;
+        while ($hasParent) {
+            $forumSlugs[] = $forum->post_name;
+            if($forum->post_parent === 0) {
+                $hasParent = false;
+            } else {
+                $forum = get_post($forum->post_parent);
+            }
+        }
+        return '/' . implode('/', array_reverse($forumSlugs)) . '/';
+    }
+
+    static function get_topic_name_slug($post) {
+        return empty($post->post_name) ? sanitize_title_with_dashes($post->post_title) : $post->post_name;
+    }
+
+}