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<title>[59034] trunk: REST API: Support exact search in the REST API posts endpoint.</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/59034">59034</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/59034","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>flixos90</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2024-09-17 21:56:18 +0000 (Tue, 17 Sep 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: Support exact search in the REST API posts endpoint.

This changeset adds support for a new `search_semantics` enum query parameter that can be passed alongside the `search` string parameter. At this point, it only supports "exact" as possible value, but an enum is used for forward compatibility with potential enhancements like "sentence" search support. If `search_semantics=exact` is passed, it will look for an exact match rather than do a full text search, which for some use-cases is more appropriate and more performant.

Props mehulkaklotar, timothyblynjacobs, jimmyh61, ironprogrammer, johnregan3, mukesh27, costdev.
Fixes <a href="https://core.trac.wordpress.org/ticket/56350">#56350</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesrestapiendpointsclasswprestpostscontrollerphp">trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php</a></li>
<li><a href="#trunktestsphpunittestsrestapirestattachmentscontrollerphp">trunk/tests/phpunit/tests/rest-api/rest-attachments-controller.php</a></li>
<li><a href="#trunktestsphpunittestsrestapirestpagescontrollerphp">trunk/tests/phpunit/tests/rest-api/rest-pages-controller.php</a></li>
<li><a href="#trunktestsphpunittestsrestapirestpostscontrollerphp">trunk/tests/phpunit/tests/rest-api/rest-posts-controller.php</a></li>
<li><a href="#trunktestsqunitfixtureswpapigeneratedjs">trunk/tests/qunit/fixtures/wp-api-generated.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesrestapiendpointsclasswprestpostscontrollerphp"></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-posts-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-posts-controller.php       2024-09-17 21:52:54 UTC (rev 59033)
+++ trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 2024-09-17 21:56:18 UTC (rev 59034)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -337,6 +337,13 @@
</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">+                if (
+                       isset( $registered['search_semantics'], $request['search_semantics'] )
+                       && 'exact' === $request['search_semantics']
+               ) {
+                       $args['exact'] = true;
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 $args = $this->prepare_tax_query( $args, $request );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                // Force the post_type argument, since it's not a user input variable.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2886,6 +2893,12 @@
</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">+                $query_params['search_semantics'] = array(
+                       'description' => __( 'How to interpret the search input.' ),
+                       'type'        => 'string',
+                       'enum'        => array( 'exact' ),
+               );
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 $query_params['offset'] = array(
</span><span class="cx" style="display: block; padding: 0 10px">                        'description' => __( 'Offset the result set by a specific number of items.' ),
</span><span class="cx" style="display: block; padding: 0 10px">                        'type'        => 'integer',
</span></span></pre></div>
<a id="trunktestsphpunittestsrestapirestattachmentscontrollerphp"></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-attachments-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-attachments-controller.php        2024-09-17 21:52:54 UTC (rev 59033)
+++ trunk/tests/phpunit/tests/rest-api/rest-attachments-controller.php  2024-09-17 21:56:18 UTC (rev 59034)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -229,6 +229,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                'per_page',
</span><span class="cx" style="display: block; padding: 0 10px">                                'search',
</span><span class="cx" style="display: block; padding: 0 10px">                                'search_columns',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                'search_semantics',
</ins><span class="cx" style="display: block; padding: 0 10px">                                 'slug',
</span><span class="cx" style="display: block; padding: 0 10px">                                'status',
</span><span class="cx" style="display: block; padding: 0 10px">                        ),
</span></span></pre></div>
<a id="trunktestsphpunittestsrestapirestpagescontrollerphp"></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-pages-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-pages-controller.php      2024-09-17 21:52:54 UTC (rev 59033)
+++ trunk/tests/phpunit/tests/rest-api/rest-pages-controller.php        2024-09-17 21:56:18 UTC (rev 59034)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -85,6 +85,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                'per_page',
</span><span class="cx" style="display: block; padding: 0 10px">                                'search',
</span><span class="cx" style="display: block; padding: 0 10px">                                'search_columns',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                'search_semantics',
</ins><span class="cx" style="display: block; padding: 0 10px">                                 'slug',
</span><span class="cx" style="display: block; padding: 0 10px">                                'status',
</span><span class="cx" style="display: block; padding: 0 10px">                        ),
</span></span></pre></div>
<a id="trunktestsphpunittestsrestapirestpostscontrollerphp"></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-posts-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-posts-controller.php      2024-09-17 21:52:54 UTC (rev 59033)
+++ trunk/tests/phpunit/tests/rest-api/rest-posts-controller.php        2024-09-17 21:56:18 UTC (rev 59034)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -206,6 +206,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                'per_page',
</span><span class="cx" style="display: block; padding: 0 10px">                                'search',
</span><span class="cx" style="display: block; padding: 0 10px">                                'search_columns',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                'search_semantics',
</ins><span class="cx" style="display: block; padding: 0 10px">                                 'slug',
</span><span class="cx" style="display: block; padding: 0 10px">                                'status',
</span><span class="cx" style="display: block; padding: 0 10px">                                'sticky',
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -765,6 +766,64 @@
</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">+        /**
+        * @ticket 56350
+        *
+        * @dataProvider data_get_items_exact_search
+        *
+        * @param string $search_term  The search term.
+        * @param bool   $exact_search Whether the search is an exact or general search.
+        * @param int    $expected     The expected number of matching posts.
+        */
+       public function test_get_items_exact_search( $search_term, $exact_search, $expected ) {
+               self::factory()->post->create(
+                       array(
+                               'post_title'   => 'Rye',
+                               'post_content' => 'This is a post about Rye Bread',
+                       )
+               );
+
+               self::factory()->post->create(
+                       array(
+                               'post_title'   => 'Types of Bread',
+                               'post_content' => 'Types of bread are White and Rye Bread',
+                       )
+               );
+
+               $request           = new WP_REST_Request( 'GET', '/wp/v2/posts' );
+               $request['search'] = $search_term;
+               if ( $exact_search ) {
+                       $request['search_semantics'] = 'exact';
+               }
+               $response = rest_get_server()->dispatch( $request );
+               $this->assertCount( $expected, $response->get_data() );
+       }
+
+       /**
+        * Data provider for test_get_items_exact_search().
+        *
+        * @return array[]
+        */
+       public function data_get_items_exact_search() {
+               return array(
+                       'general search, one exact match and one partial match' => array(
+                               'search_term'  => 'Rye',
+                               'exact_search' => false,
+                               'expected'     => 2,
+                       ),
+                       'exact search, one exact match and one partial match' => array(
+                               'search_term'  => 'Rye',
+                               'exact_search' => true,
+                               'expected'     => 1,
+                       ),
+                       'exact search, no match and one partial match' => array(
+                               'search_term'  => 'Rye Bread',
+                               'exact_search' => true,
+                               'expected'     => 0,
+                       ),
+               );
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         public function test_get_items_order_and_orderby() {
</span><span class="cx" style="display: block; padding: 0 10px">                self::factory()->post->create(
</span><span class="cx" style="display: block; padding: 0 10px">                        array(
</span></span></pre></div>
<a id="trunktestsqunitfixtureswpapigeneratedjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/qunit/fixtures/wp-api-generated.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/qunit/fixtures/wp-api-generated.js    2024-09-17 21:52:54 UTC (rev 59033)
+++ trunk/tests/qunit/fixtures/wp-api-generated.js      2024-09-17 21:56:18 UTC (rev 59034)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -362,6 +362,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1719,6 +1727,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2820,6 +2836,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3571,6 +3595,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4382,6 +4414,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -6995,6 +7035,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7812,6 +7860,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -8017,6 +8073,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                             "default": [],
</span><span class="cx" style="display: block; padding: 0 10px">                             "required": false
</span><span class="cx" style="display: block; padding: 0 10px">                         },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        "search_semantics": {
+                            "description": "How to interpret the search input.",
+                            "type": "string",
+                            "enum": [
+                                "exact"
+                            ],
+                            "required": false
+                        },
</ins><span class="cx" style="display: block; padding: 0 10px">                         "offset": {
</span><span class="cx" style="display: block; padding: 0 10px">                             "description": "Offset the result set by a specific number of items.",
</span><span class="cx" style="display: block; padding: 0 10px">                             "type": "integer",
</span></span></pre>
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