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<title>[59458] trunk: REST API: Terms: Respect taxonomy's default query args.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/59458">59458</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/59458","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>Bernhard Reiter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2024-11-25 11:14:37 +0000 (Mon, 25 Nov 2024)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>REST API: Terms: Respect taxonomy's default query args.

It is possible to supply a set of default query `args` to `register_taxonomy()` which will be used when querying a list of terms -- for example, `orderby` in order to specify how the resulting list of terms should be sorted.

The Terms REST API controller previously respected these default query args only if the request included a post ID. This changeset makes it so that the default args will also be respected if no post ID is provided.

Props bernhard-reiter, jsnajdr.
Fixes <a href="https://core.trac.wordpress.org/ticket/62500">#62500</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesrestapiendpointsclasswpresttermscontrollerphp">trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php</a></li>
<li><a href="#trunktestsphpunittestsrestapiresttagscontrollerphp">trunk/tests/phpunit/tests/rest-api/rest-tags-controller.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesrestapiendpointsclasswpresttermscontrollerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php       2024-11-25 10:08:05 UTC (rev 59457)
+++ trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php 2024-11-25 11:14:37 UTC (rev 59458)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -227,6 +227,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">         * Retrieves terms associated with a taxonomy.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @since 4.7.0
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * @since 6.8.0 Respect default query arguments set for the taxonomy upon registration.
</ins><span class="cx" style="display: block; padding: 0 10px">          *
</span><span class="cx" style="display: block; padding: 0 10px">         * @param WP_REST_Request $request Full details about the request.
</span><span class="cx" style="display: block; padding: 0 10px">         * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -295,6 +296,22 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                /*
+                * When a taxonomy is registered with an 'args' array,
+                * those params override the `$args` passed to this function.
+                *
+                * We only need to do this if no `post` argument is provided.
+                * Otherwise, terms will be fetched using `wp_get_object_terms()`,
+                * which respects the default query arguments set for the taxonomy.
+                */
+               if (
+                       empty( $prepared_args['post'] ) &&
+                       isset( $taxonomy_obj->args ) &&
+                       is_array( $taxonomy_obj->args )
+               ) {
+                       $prepared_args = array_merge( $prepared_args, $taxonomy_obj->args );
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 /**
</span><span class="cx" style="display: block; padding: 0 10px">                 * Filters get_terms() arguments when querying terms via the REST API.
</span><span class="cx" style="display: block; padding: 0 10px">                 *
</span></span></pre></div>
<a id="trunktestsphpunittestsrestapiresttagscontrollerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/rest-api/rest-tags-controller.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/rest-api/rest-tags-controller.php       2024-11-25 10:08:05 UTC (rev 59457)
+++ trunk/tests/phpunit/tests/rest-api/rest-tags-controller.php 2024-11-25 11:14:37 UTC (rev 59458)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -482,6 +482,55 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $this->assertSame( 'Cape', $data[0]['name'] );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        /**
+        * @ticket 62500
+        */
+       public function test_get_items_custom_tax_without_post_arg_respects_tax_query_args() {
+               register_taxonomy(
+                       'batman',
+                       'post',
+                       array(
+                               'show_in_rest' => true,
+                               'sort'         => true,
+                               'args'         => array(
+                                       'order'   => 'DESC',
+                                       'orderby' => 'name',
+                               ),
+                       )
+               );
+               $controller = new WP_REST_Terms_Controller( 'batman' );
+               $controller->register_routes();
+               $term1 = self::factory()->term->create(
+                       array(
+                               'name'     => 'Cycle',
+                               'taxonomy' => 'batman',
+                       )
+               );
+               $term2 = self::factory()->term->create(
+                       array(
+                               'name'     => 'Pod',
+                               'taxonomy' => 'batman',
+                       )
+               );
+               $term3 = self::factory()->term->create(
+                       array(
+                               'name'     => 'Cave',
+                               'taxonomy' => 'batman',
+                       )
+               );
+
+               $request  = new WP_REST_Request( 'GET', '/wp/v2/batman' );
+               $response = rest_get_server()->dispatch( $request );
+               $this->assertSame( 200, $response->get_status() );
+
+               $data = $response->get_data();
+               $this->assertCount( 3, $data );
+               $this->assertSame(
+                       array( 'Pod', 'Cycle', 'Cave' ),
+                       array_column( $data, 'name' )
+               );
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         public function test_get_items_search_args() {
</span><span class="cx" style="display: block; padding: 0 10px">                $tag1 = self::factory()->tag->create( array( 'name' => 'Apple' ) );
</span><span class="cx" style="display: block; padding: 0 10px">                $tag2 = self::factory()->tag->create( array( 'name' => 'Banana' ) );
</span></span></pre>
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