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<title>[51118] trunk: Permalinks: Limit pagination for posts with comments.</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/51118">51118</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/51118","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>2021-06-08 22:49:27 +0000 (Tue, 08 Jun 2021)</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'>Permalinks: Limit pagination for posts with comments.
Additionally, redirect pages back to the source page if comments don't exist.
Props devrekli, carike, sumanm, mukesh27, chaion07, audrasjb, whyisjake, SergeyBiryukov.
Fixes <a href="https://core.trac.wordpress.org/ticket/50233">#50233</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescanonicalphp">trunk/src/wp-includes/canonical.php</a></li>
<li><a href="#trunktestsphpunittestslinkwpGetCanonicalUrlphp">trunk/tests/phpunit/tests/link/wpGetCanonicalUrl.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludescanonicalphp"></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/canonical.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/canonical.php 2021-06-08 22:47:00 UTC (rev 51117)
+++ trunk/src/wp-includes/canonical.php 2021-06-08 22:49:27 UTC (rev 51118)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -27,6 +27,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * or query in an attempt to figure the correct page to go to.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.3.0
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @since 5.8.0 Checks comment page count to limit pagination.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
</span><span class="cx" style="display: block; padding: 0 10px"> * @global bool $is_IIS
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -504,9 +505,16 @@
</span><span class="cx" style="display: block; padding: 0 10px"> && ( 'newest' === $default_comments_page && $cpage > 0
</span><span class="cx" style="display: block; padding: 0 10px"> || 'newest' !== $default_comments_page && $cpage > 1 )
</span><span class="cx" style="display: block; padding: 0 10px"> ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' );
- $addl_path .= user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . $cpage, 'commentpaged' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Checks comment page count to limit pagination.
+ $per_page = get_option( 'comments_per_page' );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Get the total number of pages for comments.
+ $comments_total_pages = ceil( ( $wp_query->post->comment_count ) / $per_page );
+ if ( $cpage <= $comments_total_pages ) {
+ $addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' );
+ $addl_path .= user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . $cpage, 'commentpaged' );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunktestsphpunittestslinkwpGetCanonicalUrlphp"></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/link/wpGetCanonicalUrl.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/link/wpGetCanonicalUrl.php 2021-06-08 22:47:00 UTC (rev 51117)
+++ trunk/tests/phpunit/tests/link/wpGetCanonicalUrl.php 2021-06-08 22:49:27 UTC (rev 51118)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -152,6 +152,27 @@
</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">+ * Limit pagination for comments.
+ *
+ * @ticket 50233
+ */
+ public function test_comments_limit_paged_with_plain_permalink_structure() {
+ $cpage = 5;
+
+ $link = add_query_arg(
+ array(
+ 'cpage' => $cpage,
+ 'foo' => 'bar',
+ ),
+ get_permalink( self::$post_id )
+ );
+
+ $this->go_to( $link );
+ $expected = get_permalink( self::$post_id ) . '#comments';
+ $this->assertSame( $expected, wp_get_canonical_url( self::$post_id ) );
+ }
+
+ /**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Filter callback for testing of filter usage.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @return string
</span></span></pre>
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