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<title>[22136] trunk/wp-admin: Move the static front page saving routine to a single sanitize_option() callback for show_on_front.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/22136">22136</a></dd>
<dt>Author</dt> <dd>nacin</dd>
<dt>Date</dt> <dd>2012-10-08 21:25:13 +0000 (Mon, 08 Oct 2012)</dd>
</dl>

<h3>Log Message</h3>
<pre>Move the static front page saving routine to a single sanitize_option() callback for show_on_front. page_on_front and page_for_posts are now manually set by this callback, and not separately by options.php. see <a href="http://core.trac.wordpress.org/ticket/16379">#16379</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpadminincludespostphp">trunk/wp-admin/includes/post.php</a></li>
<li><a href="#trunkwpadminoptionsreadingphp">trunk/wp-admin/options-reading.php</a></li>
<li><a href="#trunkwpadminoptionsphp">trunk/wp-admin/options.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkwpadminincludespostphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/includes/post.php (22135 => 22136)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/includes/post.php        2012-10-08 18:41:19 UTC (rev 22135)
+++ trunk/wp-admin/includes/post.php        2012-10-08 21:25:13 UTC (rev 22136)
</span><span class="lines">@@ -1337,22 +1337,37 @@
</span><span class="cx">  * @since 3.5.0
</span><span class="cx">  * @access private
</span><span class="cx">  */
</span><del>-function _create_pages_for_reading_settings() {
-        // If we're saving the Reading Settings screen, intercept.
-        if ( ! isset( $_POST['show_on_front'] ) )
-                return;
</del><ins>+function _show_on_front_reading_settings( $show_on_front_value ) {
+        // If we're not saving the Reading Settings screen, don't intercept.
+        if ( ! $_POST || ! strpos( wp_get_referer(), 'options-reading.php' ) )
+                return $show_on_front_value;
</ins><span class="cx"> 
</span><ins>+        if ( 'posts' == $show_on_front_value ) {
+                update_option( 'page_on_front', 0 );
+                update_option( 'page_for_posts', 0 );
+                return $show_on_front_value;
+        }
+
</ins><span class="cx">         // If a new front page was meant to be created, go forth and create it.
</span><del>-        if ( isset( $_POST['page_on_front'] ) &amp;&amp; 'new' == $_POST['page_on_front'] ) {
</del><ins>+        if ( 'new' == $_POST['page_on_front'] ) {
+
+                // If the user can't create pages, revert.
</ins><span class="cx">                 if ( ! current_user_can( 'create_posts', 'page' ) ) {
</span><del>-                        $_POST['page_on_front'] = 0;
-                        $_POST['show_on_front'] = 'posts';
-                        add_settings_error( 'page_on_front', __( 'You are not allowed to create pages on this site.' ) );
</del><ins>+                        // If an existing page is set, keep things as is, rather than reverting to showing posts.
+                        if ( get_option( 'page_on_front' ) ) {
+                                $show_on_front_value = 'page';
+                        } else {
+                                $show_on_front_value = 'posts';
+                                update_option( 'page_on_front', 0 );
+                                update_option( 'page_for_posts', 0 );
+                        }
+                        add_settings_error( 'page_on_front', 'create_pages', __( 'You are not allowed to create pages on this site.' ) );
+                        return $show_on_front_value;
</ins><span class="cx">                 }
</span><span class="cx"> 
</span><span class="cx">                 $existing_page = get_page_by_title( stripslashes( $_POST['page_on_front_title'] ) );
</span><span class="cx"> 
</span><del>-                // If page already exists and it's public, there's no need to create a new page
</del><ins>+                // If page already exists and it's public, there's no need to create a new page.
</ins><span class="cx">                 if ( $existing_page &amp;&amp; 'publish' == $existing_page-&gt;post_status ) {
</span><span class="cx">                         $page_id = $existing_page-&gt;ID;
</span><span class="cx">                 } else {
</span><span class="lines">@@ -1364,38 +1379,53 @@
</span><span class="cx">                                 'ping_status' =&gt; 'closed',
</span><span class="cx">                                 // @todo Create some sort of a 'context' in postmeta so we know we created a page through these means.
</span><span class="cx">                                 //       Consider then showing that context in the list table as a good-first-step.
</span><del>-                        ), true );
</del><ins>+                        ) );
</ins><span class="cx">                 }
</span><span class="cx"> 
</span><del>-                // Make sure page_on_front is properly saved by options.php.
-                if ( is_wp_error( $page_id ) )
-                        $_POST['page_on_front'] = 0;
-                else
-                        $_POST['page_on_front'] = $page_id;
</del><ins>+                if ( $page_id ) {
+                        update_option( 'page_on_front', $page_id );
+                // If we can't save it, revert.
+                } elseif ( get_option( 'page_on_front' ) ) {
+                        // If an existing page is set, keep things as is, rather than reverting to showing posts.
+                        $show_on_front_value = 'page';
+                } else {
+                        $show_on_front_value = 'posts';
+                        update_option( 'page_on_front', 0 );
+                        update_option( 'page_for_posts', 0 );
+                        return $show_on_front_value;
+                }
+        } elseif ( $_POST['page_on_front'] ) {
+                update_option( 'page_on_front', $_POST['page_on_front'] );
+        } else {
+                // They didn't select a page at all. Sad face.
+                $show_on_front_value = 'posts';
+                update_option( 'page_on_front', 0 );
+                update_option( 'page_for_posts', 0 );
+                add_settings_error( 'page_on_front', 'no_page_selected', __( 'You must select a page to set a static front page.' ) );
+                return $show_on_front_value;
</ins><span class="cx">         }
</span><span class="cx"> 
</span><span class="cx">         // If a page for posts was meant to be specified, update/create it.
</span><del>-        if ( ! isset( $_POST['page_for_posts'] ) )
-                return;
</del><ins>+        if ( ! isset( $_POST['page_for_posts'] ) ) {
+                update_option( 'page_for_posts', 0 );
+                return $show_on_front_value;
+        }
</ins><span class="cx"> 
</span><span class="cx">         $page_for_posts = (int) $_POST['page_for_posts'];
</span><ins>+
</ins><span class="cx">         if ( ! $page_for_posts || ! $page = get_post( $page_for_posts, ARRAY_A ) ) {
</span><del>-                $_POST['page_for_posts'] = 0;
-                return;
</del><ins>+                update_option( 'page_for_posts', 0 );
+                return $show_on_front_value;
</ins><span class="cx">         }
</span><span class="cx"> 
</span><del>-        // @todo The UI (see @todo's in options-reading) should cover the next 3 conditionals,
-        //       which means we shouldn't need to bother with setting a settings error here.
-        //       However, we may wish to restore settings before bailing, beyond setting
-        //       page_for_posts to 0 (which we then expect to get cleaned up by options.php).
</del><span class="cx">         if ( 'page' != $page['post_type'] || ! current_user_can( 'edit_post', $page_for_posts ) ) {
</span><del>-                $_POST['page_for_posts'] = 0;
-                return;
</del><ins>+                update_option( 'page_for_posts', 0 );
+                return $show_on_front_value;
</ins><span class="cx">         }
</span><span class="cx"> 
</span><span class="cx">         if ( 'publish' != $page['post_status'] &amp;&amp; ! current_user_can( 'publish_post', $page_for_posts ) ) {
</span><del>-                $_POST['page_for_posts'] = 0;
-                return;
</del><ins>+                update_option( 'page_for_posts', 0 );
+                return $show_on_front_value;
</ins><span class="cx">         }
</span><span class="cx"> 
</span><span class="cx">         $args = add_magic_quotes( $page );
</span><span class="lines">@@ -1407,8 +1437,9 @@
</span><span class="cx">                 $args['ping_status'] = 'closed';
</span><span class="cx">         }
</span><span class="cx"> 
</span><del>-        $page_id = wp_insert_post( $args, true );
-        if ( is_wp_error( $page_id ) )
-                $_POST['page_for_posts'] = 0;
</del><ins>+        $page_id = wp_insert_post( $args );
+        update_option( 'page_for_posts', $page_id );
+
+        return $show_on_front_value;
</ins><span class="cx"> }
</span><del>-add_filter( 'admin_init', '_create_pages_for_reading_settings' );
</del><ins>+add_filter( 'sanitize_option_show_on_front', '_show_on_front_reading_settings' );
</ins></span></pre></div>
<a id="trunkwpadminoptionsreadingphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/options-reading.php (22135 => 22136)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/options-reading.php        2012-10-08 18:41:19 UTC (rev 22135)
+++ trunk/wp-admin/options-reading.php        2012-10-08 21:25:13 UTC (rev 22136)
</span><span class="lines">@@ -32,6 +32,8 @@
</span><span class="cx">                 section.toggleClass('page-on-front', checked);
</span><span class="cx">                 if ( checked )
</span><span class="cx">                         $('#page_for_posts').prop('checked', true).change();
</span><ins>+                else
+                        section.removeClass('page-for-posts');
</ins><span class="cx">         });
</span><span class="cx">         $('#page_for_posts').change( function() {
</span><span class="cx">                 section.toggleClass('page-for-posts', $(this).prop('checked'));
</span><span class="lines">@@ -116,7 +118,8 @@
</span><span class="cx">         //       We must also check that the user can edit this page and publish a page.
</span><span class="cx">         //       Otherwise, we must assume they cannot create pages (throughout), and thus
</span><span class="cx">         //       should fall back to the dropdown.
</span><del>-        if ( ! $page_for_posts = get_page_by_path( sanitize_title( $title ) ) ) {
</del><ins>+        $page_for_posts = get_page_by_path( sanitize_title( $title ) );
+        if ( ! $page_for_posts || $page_for_posts-&gt;ID == get_option( 'page_on_front' ) ) {
</ins><span class="cx">                 $page_for_posts = get_default_post_to_edit( 'page', true );
</span><span class="cx">                 $page_for_posts-&gt;post_title = $title;
</span><span class="cx">                 $page_for_posts-&gt;post_name = sanitize_title( $title );
</span></span></pre></div>
<a id="trunkwpadminoptionsphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/options.php (22135 => 22136)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/options.php        2012-10-08 18:41:19 UTC (rev 22135)
+++ trunk/wp-admin/options.php        2012-10-08 21:25:13 UTC (rev 22136)
</span><span class="lines">@@ -62,7 +62,7 @@
</span><span class="cx">         'general' =&gt; array( 'blogname', 'blogdescription', 'gmt_offset', 'date_format', 'time_format', 'start_of_week', 'timezone_string' ),
</span><span class="cx">         'discussion' =&gt; array( 'default_pingback_flag', 'default_ping_status', 'default_comment_status', 'comments_notify', 'moderation_notify', 'comment_moderation', 'require_name_email', 'comment_whitelist', 'comment_max_links', 'moderation_keys', 'blacklist_keys', 'show_avatars', 'avatar_rating', 'avatar_default', 'close_comments_for_old_posts', 'close_comments_days_old', 'thread_comments', 'thread_comments_depth', 'page_comments', 'comments_per_page', 'default_comments_page', 'comment_order', 'comment_registration' ),
</span><span class="cx">         'media' =&gt; array( 'thumbnail_size_w', 'thumbnail_size_h', 'thumbnail_crop', 'medium_size_w', 'medium_size_h', 'large_size_w', 'large_size_h', 'image_default_size', 'image_default_align', 'image_default_link_type' ),
</span><del>-        'reading' =&gt; array( 'posts_per_page', 'posts_per_rss', 'rss_use_excerpt', 'show_on_front', 'page_on_front', 'page_for_posts', 'blog_public' ),
</del><ins>+        'reading' =&gt; array( 'posts_per_page', 'posts_per_rss', 'rss_use_excerpt', 'show_on_front', 'blog_public' ),
</ins><span class="cx">         'writing' =&gt; array( 'use_smilies', 'default_category', 'default_email_category', 'use_balanceTags', 'default_link_category', 'default_post_format' )
</span><span class="cx"> );
</span><span class="cx"> $whitelist_options['misc'] = $whitelist_options['options'] = $whitelist_options['privacy'] = array();
</span></span></pre>
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