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<title>[50163] trunk: Administration: New filter ahead of the months drop-down.</title>
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<div id="msg">
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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/50163">50163</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/50163","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>whyisjake</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-02-02 20:32:42 +0000 (Tue, 02 Feb 2021)</dd>
</dl>

<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Administration: New filter ahead of the months drop-down.

As this can cause large, long running queries on sites with many posts, this filter allows the query to be modified, bypassing entirely if needed. 

Fixes <a href="https://core.trac.wordpress.org/ticket/51660">#51660</a>.

Props geoffguillain, SergeyBiryukov, hareesh-pillai, hellofromTonya, TimothyBlynJacobs, whyisjake. </pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkpackagelockjson">trunk/package-lock.json</a></li>
<li><a href="#trunksrcwpadminincludesclasswplisttablephp">trunk/src/wp-admin/includes/class-wp-list-table.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkpackagelockjson"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/package-lock.json</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/package-lock.json   2021-02-02 20:26:48 UTC (rev 50162)
+++ trunk/package-lock.json     2021-02-02 20:32:42 UTC (rev 50163)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3921,14 +3921,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                                "tar-fs": "^2.0.0",
</span><span class="cx" style="display: block; padding: 0 10px">                                                "unbzip2-stream": "^1.3.3",
</span><span class="cx" style="display: block; padding: 0 10px">                                                "ws": "^7.2.3"
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        },
-                                       "dependencies": {
-                                               "devtools-protocol": {
-                                                       "version": "0.0.818844",
-                                                       "resolved": "https://registry.npmjs.org/devtools-protocol/-/devtools-protocol-0.0.818844.tgz",
-                                                       "integrity": "sha512-AD1hi7iVJ8OD0aMLQU5VK0XH9LDlA1+BcPIgrAxPfaibx2DbWucuyOhc4oyQCbnvDDO68nN6/LcKfqTP343Jjg==",
-                                                       "dev": true
-                                               }
</del><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">                                "rimraf": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7196,7 +7188,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "create-hash": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "1.2.0",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha512-z00bCGNHDG8mHAkP7CtT1qVu+bFQUPjYq/4Iv3C3kWjTFV10zIjfSoeqXo9Asws8gwSHDGj/hl2u4OGIjapeCg==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7209,7 +7201,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "create-hmac": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "1.1.7",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha512-MJG9liiZ+ogc4TzUwuvbER1JRdgvUFSB5+VR/g5h82fGaIRWMWddtKBHi7/sVhfjQZ6SehlyhvQYrcYkaUIpLg==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7294,7 +7286,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "css-color-names": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "0.0.4",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/css-color-names/-/css-color-names-0.0.4.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/css-color-names/-/css-color-names-0.0.4.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha1-gIrcLnnPhHOAabZGyyDsJ762KeA=",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -8056,6 +8048,12 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        "integrity": "sha512-ZIzRpLJrOj7jjP2miAtgqIfmzbxa4ZOr5jJc601zklsfEx9oTzmmj2nVpIPRpNlRTIh8lc1kyViIY7BWSGNmKw==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                "devtools-protocol": {
+                       "version": "0.0.818844",
+                       "resolved": "https://registry.npmjs.org/devtools-protocol/-/devtools-protocol-0.0.818844.tgz",
+                       "integrity": "sha512-AD1hi7iVJ8OD0aMLQU5VK0XH9LDlA1+BcPIgrAxPfaibx2DbWucuyOhc4oyQCbnvDDO68nN6/LcKfqTP343Jjg==",
+                       "dev": true
+               },
</ins><span class="cx" style="display: block; padding: 0 10px">                 "diff": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "4.0.2",
</span><span class="cx" style="display: block; padding: 0 10px">                        "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -8069,7 +8067,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "diffie-hellman": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "5.0.3",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha512-kqag/Nl+f3GwyK25fhUMYj81BUOrZ9IuJsjIcDE5icNM9FJHAVm3VcUDxdLPoQtTuUylWm6ZIknYJwwaPxsUzg==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -20373,7 +20371,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "sha.js": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "2.4.11",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                        "requires": {
</span></span></pre></div>
<a id="trunksrcwpadminincludesclasswplisttablephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/class-wp-list-table.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/class-wp-list-table.php       2021-02-02 20:26:48 UTC (rev 50162)
+++ trunk/src/wp-admin/includes/class-wp-list-table.php 2021-02-02 20:32:42 UTC (rev 50163)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -595,36 +595,48 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        return;
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $extra_checks = "AND post_status != 'auto-draft'";
-               if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) {
-                       $extra_checks .= " AND post_status != 'trash'";
-               } elseif ( isset( $_GET['post_status'] ) ) {
-                       $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] );
-               }
-
-               $months = $wpdb->get_results(
-                       $wpdb->prepare(
-                               "
-                       SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
-                       FROM $wpdb->posts
-                       WHERE post_type = %s
-                       $extra_checks
-                       ORDER BY post_date DESC
-               ",
-                               $post_type
-                       )
-               );
-
</del><span class="cx" style="display: block; padding: 0 10px">                 /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                 * Filters the 'Months' drop-down results.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+          * Filters to short-circuit performing the months dropdown query.
</ins><span class="cx" style="display: block; padding: 0 10px">                  *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                 * @since 3.7.0
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+          * @since 5.7.0
</ins><span class="cx" style="display: block; padding: 0 10px">                  *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                 * @param object[] $months    Array of the months drop-down query results.
-                * @param string   $post_type The post type.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+          * @param object[]|false $months   'Months' drop-down results. Default false.
+                * @param string         $post_type The post type.
</ins><span class="cx" style="display: block; padding: 0 10px">                  */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $months = apply_filters( 'months_dropdown_results', $months, $post_type );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $months = apply_filters( 'pre_months_dropdown_query', false, $post_type );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                if ( ! is_array( $months ) ) {
+                       $extra_checks = "AND post_status != 'auto-draft'";
+                       if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) {
+                               $extra_checks .= " AND post_status != 'trash'";
+                       } elseif ( isset( $_GET['post_status'] ) ) {
+                               $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] );
+                       }
+
+                       $months = $wpdb->get_results(
+                               $wpdb->prepare(
+                                       "
+                               SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
+                               FROM $wpdb->posts
+                               WHERE post_type = %s
+                               $extra_checks
+                               ORDER BY post_date DESC
+                       ",
+                                       $post_type
+                               )
+                       );
+
+                       /**
+                        * Filters the 'Months' drop-down results.
+                        *
+                        * @since 3.7.0
+                        *
+                        * @param object[] $months    Array of the months drop-down query results.
+                        * @param string   $post_type The post type.
+                        */
+                       $months = apply_filters( 'months_dropdown_results', $months, $post_type );
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 $month_count = count( $months );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) {
</span></span></pre>
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