function import_line($line, $options)
{
global $wpdb, $wp_object_cache;
$post = array();
// Post to be sent to WP
$imported_post = new TI_Import_Line();
// Post details saved to the database after the import
$update = false;
// Whether this is an update
// Get blog ID and switch to that blog if needed
$post_blog_id = $this->import_blog_id($line);
if (is_wp_error($post_blog_id)) {
return $post_blog_id;
} else {
$imported_post->blog_id = $post_blog_id;
}
// Determine if this is an insert or an update (it's an update if a post ID was specified AND that post exists already)
if ($this->template->postid_col) {
// ID value to match
$update_id = $this->read_line_col($line, $this->template->postid_col);
if (is_wp_error($update_id)) {
return $update_id;
}
// If column is not empty, then try to find the matching post ID
if ($update_id) {
// Field to match against
$update_field = $this->template->update_field;
// Try to find the post to be updated
$found_id = $this->find_post_id($update_field, $update_id);
if ($found_id) {
$post['ID'] = $found_id;
$update = true;
}
}
}
// Parse the tokens in the post body/title
$result = $this->import_post_content($line, $post, $update);
if (is_wp_error($result)) {
return $result;
}
// Assign basic settings fields and validate them
$result = $this->import_post_settings($line, $post);
if (is_wp_error($result)) {
return $result;
}
// Assign post dates
$result = $this->import_post_date($line, $post, $update);
if (is_wp_error($result)) {
return $result;
}
// Taxonomies
$result = $this->import_post_taxonomies($line, $options);
if (is_wp_error($result)) {
return $result;
} elseif (!empty($result)) {
$post['tax_input'] = $result;
}
// Update or insert the post
// If revisions are active, this may return a new post ID
if ($update) {
$post_id = wp_update_post($post);
} else {
$post_id = wp_insert_post($post, true);
}
// Record memory usage after update/insert
$memory_usage = memory_get_usage();
$this->max_memory = $memory_usage > $this->max_memory ? $memory_usage : $this->max_memory;
// Flush the object cache - if this isn't done WordPress leaks 4k of memory with each new post.
// Even with the flush, it's about 900B.
$wp_object_cache->flush();
// Any error from posting is fatal. wp_insert gives a full error, wp_update just returns FALSE
if (is_wp_error($post_id)) {
return $this->log_line($post_id);
} elseif ($post_id === false) {
return $this->log_line(sprintf(__("Wordpress error when updating post id=%s"), $post_id));
}
// If updating, remember revision post number for later undo
if ($update) {
// Figure out if revisions are supported and switched on
if (defined('WP_POST_REVISIONS') && WP_POST_REVISIONS && !empty($post['post_type']) && post_type_supports($post['post_type'], 'revisions')) {
// A revision was created, save it for later UNDO
$imported_post->revision_id = $this->get_last_revision($post_id);
} else {
// If revision management not turned on, store FALSE in revision
$imported_post->revision_id = false;
}
}
// Post was OK - save the post data to the import; content and excerpt are NOT saved to conserve memory
$imported_post->updated = $update;
$imported_post->post_id = $post_id;
$imported_post->import_id = $this->_id;
$result = $imported_post->save();
if (is_wp_error($result)) {
return $result;
}
// Featured image / thumbnail - update/insert after post is complete
$result = $this->import_thumbnail($line, $post_id);
if (is_wp_error($result)) {
return $result;
}
// Update/insert post metadata after the post is complete
$result = $this->import_post_meta($line, $post_id, $options, $update);
if (is_wp_error($result)) {
return $result;
}
return true;
}
