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<title>[2164] 2013/frederickding/importer/trunk/class-wordpress-importer.php: Add post process step.</title>
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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://gsoc.trac.wordpress.org/changeset/2164">2164</a></dd>
<dt>Author</dt> <dd>frederick.ding</dd>
<dt>Date</dt> <dd>2013-07-28 23:46:44 +0000 (Sun, 28 Jul 2013)</dd>
</dl>

<h3>Log Message</h3>
<pre>Add post process step.

- Attachment fetching temporarily unimplemented.
- See <a href="http://gsoc.trac.wordpress.org/ticket/327">#327</a></pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#2013frederickdingimportertrunkclasswordpressimporterphp">2013/frederickding/importer/trunk/class-wordpress-importer.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="2013frederickdingimportertrunkclasswordpressimporterphp"></a>
<div class="modfile"><h4>Modified: 2013/frederickding/importer/trunk/class-wordpress-importer.php (2163 => 2164)</h4>
<pre class="diff"><span>
<span class="info">--- 2013/frederickding/importer/trunk/class-wordpress-importer.php   2013-07-28 23:46:34 UTC (rev 2163)
+++ 2013/frederickding/importer/trunk/class-wordpress-importer.php      2013-07-28 23:46:44 UTC (rev 2164)
</span><span class="lines">@@ -97,6 +97,13 @@
</span><span class="cx">   */
</span><span class="cx">  protected $terms = array();
</span><span class="cx">  
</span><ins>+       /**
+        *
+        * @see process_posts()
+        * @var array
+        */
+       protected $posts = array();
+       
</ins><span class="cx">   /*
</span><span class="cx">   * SECTION: mappings from old information to new
</span><span class="cx">   */
</span><span class="lines">@@ -122,6 +129,26 @@
</span><span class="cx">  protected $processed_terms = array();
</span><span class="cx">  
</span><span class="cx">  /**
</span><ins>+        *
+        * @var array
+        */
+       protected $processed_posts = array();
+       
+       /**
+        *
+        * @see process_posts()
+        * @var array
+        */
+       protected $processed_post_orphans = array();
+       
+       /**
+        *
+        * @see process_posts()
+        * @var array
+        */
+       protected $processed_featured_images = array();
+       
+       /**
</ins><span class="cx">    * Stores user-submitted choices on how to proceed with the process.
</span><span class="cx">   * 
</span><span class="cx">   * The first dimension of this array is 
</span><span class="lines">@@ -623,8 +650,8 @@
</span><span class="cx">                          // set a warning in the importer class, and include the
</span><span class="cx">                          // WP_Error object emitted by wp_insert_category() as data.
</span><span class="cx">                          $this->warnings[] = new WP_Error( 
</span><del>-                                               'import_process_tags_warning', 
-                                               __( 'Failed to import post %s %s', 
</del><ins>+                                                'import_process_term_warning', 
+                                               __( 'Failed to import %s %s', 
</ins><span class="cx">                                                           'wordpress-importer' ), 
</span><span class="cx">                                          esc_html( $term['term_taxonomy'] ), 
</span><span class="cx">                                          esc_html( $term['term_name'] ), $id );
</span><span class="lines">@@ -642,15 +669,316 @@
</span><span class="cx">   * @todo
</span><span class="cx">   */
</span><span class="cx">  protected function process_attachments() {}
</span><del>-
</del><ins>+        
</ins><span class="cx">   /**
</span><span class="cx">   *
</span><span class="cx">   * @todo
</span><span class="cx">   */
</span><del>-       protected function process_posts() {}
</del><ins>+        protected function process_attachment() {}
</ins><span class="cx"> 
</span><span class="cx">  /**
</span><ins>+        * Creates new posts based on import data.
</ins><span class="cx">    *
</span><ins>+        * Posts marked as having a parent which doesn't exist will become top level
+        * items. Doesn't create a new post if: the post type doesn't exist, the 
+        * given post ID is already noted as imported or a post with the same title 
+        * and date already exists. Note that new/updated terms, comments and meta 
+        * are imported for the last of the above.
+        */
+       protected function process_posts() {
+               $this->posts = apply_filters( 'wp_import_posts', $this->posts );
+               
+               foreach ( $this->posts as $post ) {
+                       $post = apply_filters( 'wp_import_post_data_raw', $post );
+                       if ( ! post_type_exists( $post['post_type'] ) ) {
+                               $this->warnings[] = new WP_Error( 
+                                               'import_process_posts_post_type_warning', 
+                                               __( 
+                                                               'Failed to import &#8220;%s&#8221;: Invalid post type %s', 
+                                                               'wordpress-importer' ), 
+                                               array(
+                                                               'title' => esc_html( $post['post_title'] ),
+                                                               'post_type' => esc_html( $post['post_type'] )
+                                               ) );
+                               do_action( 'wp_import_post_exists', $post );
+                               continue;
+                       }
+                       
+                       if ( isset( $this->processed_posts[$post['post_id']] ) &&
+                                        ! empty( $post['post_id'] ) )
+                               continue;
+                       
+                       if ( $post['status'] == 'auto-draft' )
+                               continue;
+                       
+                       if ( 'nav_menu_item' == $post['post_type'] ) {
+                               $this->process_menu_item( $post );
+                               continue;
+                       }
+                       
+                       $post_type_object = get_post_type_object( $post['post_type'] );
+                       
+                       $post_exists = post_exists( $post['post_title'], '', 
+                                       $post['post_date'] );
+                       if ( $post_exists &&
+                                        get_post_type( $post_exists ) == $post['post_type'] ) {
+                               $this->warnings[] = new WP_Error( 
+                                               'import_process_posts_post_exists_warning', 
+                                               __( '%s &#8220;%s&#8221; already exists.', 
+                                                               'wordpress-importer' ), 
+                                               array(
+                                                               'post_type' => $post_type_object->labels->singular_name,
+                                                               'title' => esc_html( $post['post_title'] )
+                                               ) );
+                               $comment_post_ID = $post_id = $post_exists;
+                       } else {
+                               $post_parent = (int) $post['post_parent'];
+                               if ( $post_parent ) {
+                                       // if we already know the parent, map it to the new local ID
+                                       if ( isset( $this->processed_posts[$post_parent] ) ) {
+                                               $post_parent = $this->processed_posts[$post_parent];
+                                               // otherwise record the parent for later
+                                       } else {
+                                               $this->processed_post_orphans[intval( 
+                                                               $post['post_id'] )] = $post_parent;
+                                               $post_parent = 0;
+                                       }
+                               }
+                               
+                               // map the post author
+                               $author = sanitize_user( $post['post_author'], true );
+                               if ( isset( $this->processed_author_mappings[$author] ) )
+                                       $author = $this->processed_author_mappings[$author];
+                               else
+                                       $author = (int) $this->get_param( 'admin_user_id', 0 );
+                               
+                               $postdata = array(
+                                               'import_id' => $post['post_id'],
+                                               'post_author' => $author,
+                                               'post_date' => $post['post_date'],
+                                               'post_date_gmt' => $post['post_date_gmt'],
+                                               'post_content' => $post['post_content'],
+                                               'post_excerpt' => $post['post_excerpt'],
+                                               'post_title' => $post['post_title'],
+                                               'post_status' => $post['status'],
+                                               'post_name' => $post['post_name'],
+                                               'comment_status' => $post['comment_status'],
+                                               'ping_status' => $post['ping_status'],
+                                               'guid' => $post['guid'],
+                                               'post_parent' => $post_parent,
+                                               'menu_order' => $post['menu_order'],
+                                               'post_type' => $post['post_type'],
+                                               'post_password' => $post['post_password']
+                               );
+                               
+                               $original_post_ID = $post['post_id'];
+                               $postdata = apply_filters( 'wp_import_post_data_processed', 
+                                               $postdata, $post );
+                               
+                               /*
+                                * @todo decouple attachment processing from post processing
+                                */
+                               if ( 'attachment' == $postdata['post_type'] ) {
+                                       $remote_url = ! empty( $post['attachment_url'] ) ? $post['attachment_url'] : $post['guid'];
+                                       
+                                       // try to use _wp_attached file for upload folder placement
+                                       // to ensure the same location as the export site
+                                       // e.g. location is 2003/05/image.jpg but the attachment
+                                       // post_date is 2010/09, see media_handle_upload()
+                                       $postdata['upload_date'] = $post['post_date'];
+                                       if ( isset( $post['postmeta'] ) ) {
+                                               foreach ( $post['postmeta'] as $meta ) {
+                                                       if ( $meta['key'] == '_wp_attached_file' ) {
+                                                               if ( preg_match( '%^[0-9]{4}/[0-9]{2}%', 
+                                                                               $meta['value'], $matches ) )
+                                                                       $postdata['upload_date'] = $matches[0];
+                                                               break;
+                                                       }
+                                               }
+                                       }
+                                       
+                                       $comment_post_ID = $post_id = $this->process_attachment( 
+                                                       $postdata, $remote_url );
+                               } else {
+                                       $comment_post_ID = $post_id = wp_insert_post( $postdata, 
+                                                       true );
+                                       do_action( 'wp_import_insert_post', $post_id, 
+                                                       $original_post_ID, $postdata, $post );
+                               }
+                               
+                               if ( is_wp_error( $post_id ) ) {
+                                       $this->warnings[] = new WP_Error( 
+                                                       'import_process_posts_failure_warning', 
+                                                       __( 'Failed to import %s &#8220;%s&#8221;', 
+                                                                       'wordpress-importer' ), 
+                                                       array(
+                                                                       'post_type' => $post_type_object->labels->singular_name,
+                                                                       'post_title' => esc_html( 
+                                                                                       $post['post_title'] ),
+                                                                       'previous_error' => $post_id
+                                                       ) );
+                                       continue;
+                               }
+                               
+                               if ( $post['is_sticky'] == 1 )
+                                       stick_post( $post_id );
+                       }
+                       
+                       // map pre-import ID to local ID
+                       $this->processed_posts[intval( $post['post_id'] )] = (int) $post_id;
+                       
+                       if ( ! isset( $post['terms'] ) )
+                               $post['terms'] = array();
+                       
+                       $post['terms'] = apply_filters( 'wp_import_post_terms', 
+                                       $post['terms'], $post_id, $post );
+                       
+                       // add categories, tags and other terms
+                       if ( ! empty( $post['terms'] ) ) {
+                               $terms_to_set = array();
+                               foreach ( $post['terms'] as $term ) {
+                                       // back compat with WXR 1.0 map 'tag' to 'post_tag'
+                                       $taxonomy = ('tag' == $term['domain']) ? 'post_tag' : $term['domain'];
+                                       $term_exists = term_exists( $term['slug'], $taxonomy );
+                                       $term_id = is_array( $term_exists ) ? $term_exists['term_id'] : $term_exists;
+                                       if ( ! $term_id ) {
+                                               $t = wp_insert_term( $term['name'], $taxonomy, 
+                                                               array(
+                                                                               'slug' => $term['slug']
+                                                               ) );
+                                               if ( ! is_wp_error( $t ) ) {
+                                                       $term_id = $t['term_id'];
+                                                       do_action( 'wp_import_insert_term', $t, $term, 
+                                                                       $post_id, $post );
+                                               } else {
+                                                       $this->warnings[] = new WP_Error( 
+                                                                       'import_process_term_warning', 
+                                                                       __( 'Failed to import %s %s', 
+                                                                                       'wordpress-importer' ), 
+                                                                       esc_html( $taxonomy ), 
+                                                                       esc_html( $term['name'] ), $t );
+                                                       do_action( 'wp_import_insert_term_failed', $t, 
+                                                                       $term, $post_id, $post );
+                                                       continue;
+                                               }
+                                       }
+                                       $terms_to_set[$taxonomy][] = intval( $term_id );
+                               }
+                               
+                               foreach ( $terms_to_set as $tax => $ids ) {
+                                       $tt_ids = wp_set_post_terms( $post_id, $ids, $tax );
+                                       do_action( 'wp_import_set_post_terms', $tt_ids, $ids, 
+                                                       $tax, $post_id, $post );
+                               }
+                               unset( $post['terms'], $terms_to_set );
+                       }
+                       
+                       if ( ! isset( $post['comments'] ) )
+                               $post['comments'] = array();
+                       
+                       $post['comments'] = apply_filters( 'wp_import_post_comments', 
+                                       $post['comments'], $post_id, $post );
+                       
+                       // add/update comments
+                       if ( ! empty( $post['comments'] ) ) {
+                               $num_comments = 0;
+                               $inserted_comments = array();
+                               foreach ( $post['comments'] as $comment ) {
+                                       $comment_id = $comment['comment_id'];
+                                       $newcomments[$comment_id]['comment_post_ID'] = $comment_post_ID;
+                                       $newcomments[$comment_id]['comment_author'] = $comment['comment_author'];
+                                       $newcomments[$comment_id]['comment_author_email'] = $comment['comment_author_email'];
+                                       $newcomments[$comment_id]['comment_author_IP'] = $comment['comment_author_IP'];
+                                       $newcomments[$comment_id]['comment_author_url'] = $comment['comment_author_url'];
+                                       $newcomments[$comment_id]['comment_date'] = $comment['comment_date'];
+                                       $newcomments[$comment_id]['comment_date_gmt'] = $comment['comment_date_gmt'];
+                                       $newcomments[$comment_id]['comment_content'] = $comment['comment_content'];
+                                       $newcomments[$comment_id]['comment_approved'] = $comment['comment_approved'];
+                                       $newcomments[$comment_id]['comment_type'] = $comment['comment_type'];
+                                       $newcomments[$comment_id]['comment_parent'] = $comment['comment_parent'];
+                                       $newcomments[$comment_id]['commentmeta'] = isset( 
+                                                       $comment['commentmeta'] ) ? $comment['commentmeta'] : array();
+                                       if ( isset( 
+                                                       $this->processed_authors[$comment['comment_user_id']] ) )
+                                               $newcomments[$comment_id]['user_id'] = $this->processed_authors[$comment['comment_user_id']];
+                               }
+                               ksort( $newcomments );
+                               
+                               foreach ( $newcomments as $key => $comment ) {
+                                       // if this is a new post we can skip the comment_exists()
+                                       // check
+                                       if ( ! $post_exists || ! comment_exists( 
+                                                       $comment['comment_author'], 
+                                                       $comment['comment_date'] ) ) {
+                                               if ( isset( 
+                                                               $inserted_comments[$comment['comment_parent']] ) )
+                                                       $comment['comment_parent'] = $inserted_comments[$comment['comment_parent']];
+                                               $comment = wp_filter_comment( $comment );
+                                               $inserted_comments[$key] = wp_insert_comment( 
+                                                               $comment );
+                                               do_action( 'wp_import_insert_comment', 
+                                                               $inserted_comments[$key], $comment, 
+                                                               $comment_post_ID, $post );
+                                               
+                                               foreach ( $comment['commentmeta'] as $meta ) {
+                                                       $value = maybe_unserialize( $meta['value'] );
+                                                       add_comment_meta( $inserted_comments[$key], 
+                                                                       $meta['key'], $value );
+                                               }
+                                               
+                                               $num_comments ++;
+                                       }
+                               }
+                               unset( $newcomments, $inserted_comments, $post['comments'] );
+                       }
+                       
+                       if ( ! isset( $post['postmeta'] ) )
+                               $post['postmeta'] = array();
+                       
+                       $post['postmeta'] = apply_filters( 'wp_import_post_meta', 
+                                       $post['postmeta'], $post_id, $post );
+                       
+                       // add/update post meta
+                       if ( ! empty( $post['postmeta'] ) ) {
+                               foreach ( $post['postmeta'] as $meta ) {
+                                       $key = apply_filters( 'import_post_meta_key', 
+                                                       $meta['key'], $post_id, $post );
+                                       $value = false;
+                                       
+                                       if ( '_edit_last' == $key ) {
+                                               if ( isset( 
+                                                               $this->processed_authors[intval( 
+                                                                               $meta['value'] )] ) )
+                                                       $value = $this->processed_authors[intval( 
+                                                                       $meta['value'] )];
+                                               else
+                                                       $key = false;
+                                       }
+                                       
+                                       if ( $key ) {
+                                               // export gets meta straight from the DB so could have a
+                                               // serialized string
+                                               if ( ! $value )
+                                                       $value = maybe_unserialize( $meta['value'] );
+                                               
+                                               add_post_meta( $post_id, $key, $value );
+                                               do_action( 'import_post_meta', $post_id, $key, 
+                                                               $value );
+                                               
+                                               // if the post has a featured image, take note of this
+                                               // in case of remap
+                                               if ( '_thumbnail_id' == $key )
+                                                       $this->processed_featured_images[$post_id] = (int) $value;
+                                       }
+                               }
+                       }
+               }
+               
+               unset( $this->posts );
+       }
+
+       /**
+        *
</ins><span class="cx">    * @todo
</span><span class="cx">   */
</span><span class="cx">  protected function process_parents() {}
</span></span></pre>
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