first commit

wp-content/plugins/polylang/integrations/no-category-base/load.php

@@ -0,0 +1,13 @@
+<?php
+/**
+ * Loads the integration with No Category Base.
+ *
+ * @package Polylang
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Don't access directly.
+};
+
+PLL_Integrations::instance()->no_category_base = new PLL_No_Category_Base();
+PLL_Integrations::instance()->no_category_base->init();

wp-content/plugins/polylang/integrations/no-category-base/no-category-base.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * @package Polylang
+ */
+
+/**
+ * Manages the compatibility with No Category Base.
+ * Works for Yoast SEO too.
+ *
+ * @since 2.8
+ */
+class PLL_No_Category_Base {
+	/**
+	 * Setups actions.
+	 *
+	 * @since 2.8
+	 */
+	public function init() {
+		add_filter( 'get_terms_args', array( $this, 'no_category_base_get_terms_args' ), 5 ); // Before adding our cache domain.
+	}
+
+	/**
+	 * Make sure No category base plugins get all the categories when flushing rules.
+	 *
+	 * @since 2.1
+	 *
+	 * @param array $args WP_Term_Query arguments.
+	 * @return array
+	 */
+	public function no_category_base_get_terms_args( $args ) {
+		if ( doing_filter( 'category_rewrite_rules' ) ) {
+			$args['lang'] = '';
+		}
+		return $args;
+	}
+}