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<title>[36659] trunk: Revisions: Clean up `_wp_post_revision_fields()`:</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/36659">36659</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/36659","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-02-24 00:43:31 +0000 (Wed, 24 Feb 2016)</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'>Revisions: Clean up `_wp_post_revision_fields()`:
* Move the array processing to a new function, `_wp_post_revision_data()`.
* Make both functions accept a post array or a `WP_Post` object.
* Always apply the `_wp_post_revision_fields` filter and pass the post data to it.
Fixes <a href="https://core.trac.wordpress.org/ticket/13382">#13382</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmineditformadvancedphp">trunk/src/wp-admin/edit-form-advanced.php</a></li>
<li><a href="#trunksrcwpadminincludespostphp">trunk/src/wp-admin/includes/post.php</a></li>
<li><a href="#trunksrcwpadminincludesrevisionphp">trunk/src/wp-admin/includes/revision.php</a></li>
<li><a href="#trunksrcwpincludesrevisionphp">trunk/src/wp-includes/revision.php</a></li>
<li><a href="#trunktestsphpunittestspostrevisionsphp">trunk/tests/phpunit/tests/post/revisions.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmineditformadvancedphp"></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/edit-form-advanced.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/edit-form-advanced.php 2016-02-23 23:42:59 UTC (rev 36658)
+++ trunk/src/wp-admin/edit-form-advanced.php 2016-02-24 00:43:31 UTC (rev 36659)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -197,7 +197,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Detect if there exists an autosave newer than the post and if that autosave is different than the post
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $autosave && mysql2date( 'U', $autosave->post_modified_gmt, false ) > mysql2date( 'U', $post->post_modified_gmt, false ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- foreach ( _wp_post_revision_fields() as $autosave_field => $_autosave_field ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ foreach ( _wp_post_revision_fields( $post ) as $autosave_field => $_autosave_field ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( normalize_whitespace( $autosave->$autosave_field ) != normalize_whitespace( $post->$autosave_field ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $notice = sprintf( __( 'There is an autosave of this post that is more recent than the version below. <a href="%s">View the autosave</a>' ), get_edit_post_link( $autosave->ID ) );
</span><span class="cx" style="display: block; padding: 0 10px"> break;
</span></span></pre></div>
<a id="trunksrcwpadminincludespostphp"></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/post.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/post.php 2016-02-23 23:42:59 UTC (rev 36658)
+++ trunk/src/wp-admin/includes/post.php 2016-02-24 00:43:31 UTC (rev 36659)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1662,14 +1662,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Store one autosave per author. If there is already an autosave, overwrite it.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $old_autosave = wp_get_post_autosave( $post_id, $post_author ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $new_autosave = _wp_post_revision_fields( $post_data, true );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $new_autosave = _wp_post_revision_data( $post_data, true );
</ins><span class="cx" style="display: block; padding: 0 10px"> $new_autosave['ID'] = $old_autosave->ID;
</span><span class="cx" style="display: block; padding: 0 10px"> $new_autosave['post_author'] = $post_author;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // If the new autosave has the same content as the post, delete the autosave.
</span><span class="cx" style="display: block; padding: 0 10px"> $post = get_post( $post_id );
</span><span class="cx" style="display: block; padding: 0 10px"> $autosave_is_different = false;
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields() ) ) as $field ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $autosave_is_different = true;
</span><span class="cx" style="display: block; padding: 0 10px"> break;
</span></span></pre></div>
<a id="trunksrcwpadminincludesrevisionphp"></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/revision.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/revision.php 2016-02-23 23:42:59 UTC (rev 36658)
+++ trunk/src/wp-admin/includes/revision.php 2016-02-24 00:43:31 UTC (rev 36659)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -55,7 +55,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $return = array();
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- foreach ( _wp_post_revision_fields() as $field => $name ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ foreach ( _wp_post_revision_fields( $post ) as $field => $name ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Contextually filter a post revision field.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span></span></pre></div>
<a id="trunksrcwpincludesrevisionphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/revision.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/revision.php 2016-02-23 23:42:59 UTC (rev 36658)
+++ trunk/src/wp-includes/revision.php 2016-02-24 00:43:31 UTC (rev 36659)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -9,22 +9,25 @@
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Determines which fields of posts are to be saved in revisions.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Does two things. If passed a post *array*, it will return a post array ready
- * to be inserted into the posts table as a post revision. Otherwise, returns
- * an array whose keys are the post fields to be saved for post revisions.
- *
</del><span class="cx" style="display: block; padding: 0 10px"> * @since 2.6.0
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @since 4.5.0 A `WP_Post` object can now be passed to the `$post` parameter.
+ * @since 4.5.0 The optional `$autosave` parameter was deprecated and renamed to `$deprecated`.
</ins><span class="cx" style="display: block; padding: 0 10px"> * @access private
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @staticvar array $fields
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @param array|null $post Optional. A post array to be processed for insertion as a post revision. Default null.
- * @param bool $autosave Optional. Is the revision an autosave? Default false.
- * @return array Post array ready to be inserted as a post revision or array of fields that can be versioned.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @param array|WP_Post $post Optional. A post array or a WP_Post object being processed
+ * for insertion as a post revision. Default empty array.
+ * @param bool $deprecated Not used.
+ * @return array Array of fields that can be versioned.
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-function _wp_post_revision_fields( $post = null, $autosave = false ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+function _wp_post_revision_fields( $post = array(), $deprecated = false ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> static $fields = null;
</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 ( ! is_array( $post ) ) {
+ $post = get_post( $post, ARRAY_A );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( is_null( $fields ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> // Allow these to be versioned
</span><span class="cx" style="display: block; padding: 0 10px"> $fields = array(
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -32,43 +35,67 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 'post_content' => __( 'Content' ),
</span><span class="cx" style="display: block; padding: 0 10px"> 'post_excerpt' => __( 'Excerpt' ),
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- /**
- * Filter the list of fields saved in post revisions.
- *
- * Included by default: 'post_title', 'post_content' and 'post_excerpt'.
- *
- * Disallowed fields: 'ID', 'post_name', 'post_parent', 'post_date',
- * 'post_date_gmt', 'post_status', 'post_type', 'comment_count',
- * and 'post_author'.
- *
- * @since 2.6.0
- *
- * @param array $fields List of fields to revision. Contains 'post_title',
- * 'post_content', and 'post_excerpt' by default.
- */
- $fields = apply_filters( '_wp_post_revision_fields', $fields );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Filter the list of fields saved in post revisions.
+ *
+ * Included by default: 'post_title', 'post_content' and 'post_excerpt'.
+ *
+ * Disallowed fields: 'ID', 'post_name', 'post_parent', 'post_date',
+ * 'post_date_gmt', 'post_status', 'post_type', 'comment_count',
+ * and 'post_author'.
+ *
+ * @since 2.6.0
+ * @since 4.5.0 The `$post` parameter was added.
+ *
+ * @param array $fields List of fields to revision. Contains 'post_title',
+ * 'post_content', and 'post_excerpt' by default.
+ * @param array $post A post array being processed for insertion as a post revision.
+ */
+ $fields = apply_filters( '_wp_post_revision_fields', $fields, $post );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // WP uses these internally either in versioning or elsewhere - they cannot be versioned
- foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect )
- unset( $fields[$protect] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // WP uses these internally either in versioning or elsewhere - they cannot be versioned
+ foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect ) {
+ unset( $fields[ $protect ] );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( !is_array($post) )
- return $fields;
</del><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $return = array();
- foreach ( array_intersect( array_keys( $post ), array_keys( $fields ) ) as $field )
- $return[$field] = $post[$field];
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ return $fields;
+}
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $return['post_parent'] = $post['ID'];
- $return['post_status'] = 'inherit';
- $return['post_type'] = 'revision';
- $return['post_name'] = $autosave ? "$post[ID]-autosave-v1" : "$post[ID]-revision-v1"; // "1" is the revisioning system version
- $return['post_date'] = isset($post['post_modified']) ? $post['post_modified'] : '';
- $return['post_date_gmt'] = isset($post['post_modified_gmt']) ? $post['post_modified_gmt'] : '';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/**
+ * Returns a post array ready to be inserted into the posts table as a post revision.
+ *
+ * @since 4.5.0
+ * @access private
+ *
+ * @param array|WP_Post $post Optional. A post array or a WP_Post object to be processed
+ * for insertion as a post revision. Default empty array.
+ * @param bool $autosave Optional. Is the revision an autosave? Default false.
+ * @return array Post array ready to be inserted as a post revision.
+ */
+function _wp_post_revision_data( $post = array(), $autosave = false ) {
+ if ( ! is_array( $post ) ) {
+ $post = get_post( $post, ARRAY_A );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- return $return;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $fields = _wp_post_revision_fields( $post );
+
+ $revision_data = array();
+
+ foreach ( array_intersect( array_keys( $post ), array_keys( $fields ) ) as $field ) {
+ $revision_data[ $field ] = $post[ $field ];
+ }
+
+ $revision_data['post_parent'] = $post['ID'];
+ $revision_data['post_status'] = 'inherit';
+ $revision_data['post_type'] = 'revision';
+ $revision_data['post_name'] = $autosave ? "$post[ID]-autosave-v1" : "$post[ID]-revision-v1"; // "1" is the revisioning system version
+ $revision_data['post_date'] = isset( $post['post_modified'] ) ? $post['post_modified'] : '';
+ $revision_data['post_date_gmt'] = isset( $post['post_modified_gmt'] ) ? $post['post_modified_gmt'] : '';
+
+ return $revision_data;
</ins><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><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -127,7 +154,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $last_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', $check_for_changes = true, $last_revision, $post ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $post_has_changed = false;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- foreach ( array_keys( _wp_post_revision_fields() ) as $field ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( normalize_whitespace( $post->$field ) != normalize_whitespace( $last_revision->$field ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $post_has_changed = true;
</span><span class="cx" style="display: block; padding: 0 10px"> break;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -267,7 +294,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( isset($post['post_type']) && 'revision' == $post['post_type'] )
</span><span class="cx" style="display: block; padding: 0 10px"> return new WP_Error( 'post_type', __( 'Cannot create a revision of a revision' ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $post = _wp_post_revision_fields( $post, $autosave );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $post = _wp_post_revision_data( $post, $autosave );
</ins><span class="cx" style="display: block; padding: 0 10px"> $post = wp_slash($post); //since data is from db
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $revision_id = wp_insert_post( $post );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -333,7 +360,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return $revision;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( !is_array( $fields ) )
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $fields = array_keys( _wp_post_revision_fields() );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $fields = array_keys( _wp_post_revision_fields( $revision ) );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $update = array();
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( array_intersect( array_keys( $revision ), $fields ) as $field ) {
</span></span></pre></div>
<a id="trunktestsphpunittestspostrevisionsphp"></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/post/revisions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/post/revisions.php 2016-02-23 23:42:59 UTC (rev 36658)
+++ trunk/tests/phpunit/tests/post/revisions.php 2016-02-24 00:43:31 UTC (rev 36659)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -340,7 +340,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $post = self::factory()->post->create_and_get( array( 'post_title' => 'some-post', 'post_type' => 'post', 'post_content' => 'some_content' ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $post = (array) $post;
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $post_revision_fields = _wp_post_revision_fields( $post );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $post_revision_fields = _wp_post_revision_data( $post );
</ins><span class="cx" style="display: block; padding: 0 10px"> $post_revision_fields = wp_slash( $post_revision_fields );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $revision_ids = array();
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -368,7 +368,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $post = self::factory()->post->create_and_get( array( 'post_title' => 'some-post', 'post_type' => 'post', 'post_content' => 'some_content' ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $post = (array) $post;
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $post_revision_fields = _wp_post_revision_fields( $post );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $post_revision_fields = _wp_post_revision_data( $post );
</ins><span class="cx" style="display: block; padding: 0 10px"> $post_revision_fields = wp_slash( $post_revision_fields );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $revision_ids = array();
</span></span></pre>
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