Source
File: wp-includes/class-wp-customize-manager.php
function import_theme_starter_content( $starter_content = array() ) {
if ( empty( $starter_content ) ) {
$starter_content = get_theme_starter_content();
}
$changeset_data = array();
if ( $this->changeset_post_id() ) {
/*
* Don't re-import starter content into a changeset saved persistently.
* This will need to be revisited in the future once theme switching
* is allowed with drafted/scheduled changesets, since switching to
* another theme could result in more starter content being applied.
* However, when doing an explicit save it is currently possible for
* nav menus and nav menu items specifically to lose their starter_content
* flags, thus resulting in duplicates being created since they fail
* to get re-used. See #40146.
*/
if ( 'auto-draft' !== get_post_status( $this->changeset_post_id() ) ) {
return;
}
$changeset_data = $this->get_changeset_post_data( $this->changeset_post_id() );
}
$sidebars_widgets = isset( $starter_content['widgets'] ) && ! empty( $this->widgets ) ? $starter_content['widgets'] : array();
$attachments = isset( $starter_content['attachments'] ) && ! empty( $this->nav_menus ) ? $starter_content['attachments'] : array();
$posts = isset( $starter_content['posts'] ) && ! empty( $this->nav_menus ) ? $starter_content['posts'] : array();
$options = isset( $starter_content['options'] ) ? $starter_content['options'] : array();
$nav_menus = isset( $starter_content['nav_menus'] ) && ! empty( $this->nav_menus ) ? $starter_content['nav_menus'] : array();
$theme_mods = isset( $starter_content['theme_mods'] ) ? $starter_content['theme_mods'] : array();
// Widgets.
$max_widget_numbers = array();
foreach ( $sidebars_widgets as $sidebar_id => $widgets ) {
$sidebar_widget_ids = array();
foreach ( $widgets as $widget ) {
list( $id_base, $instance ) = $widget;
if ( ! isset( $max_widget_numbers[ $id_base ] ) ) {
// When $settings is an array-like object, get an intrinsic array for use with array_keys().
$settings = get_option( "widget_{$id_base}", array() );
if ( $settings instanceof ArrayObject || $settings instanceof ArrayIterator ) {
$settings = $settings->getArrayCopy();
}
// Find the max widget number for this type.
$widget_numbers = array_keys( $settings );
if ( count( $widget_numbers ) > 0 ) {
$widget_numbers[] = 1;
$max_widget_numbers[ $id_base ] = max( ...$widget_numbers );
} else {
$max_widget_numbers[ $id_base ] = 1;
}
}
$max_widget_numbers[ $id_base ] += 1;
$widget_id = sprintf( '%s-%d', $id_base, $max_widget_numbers[ $id_base ] );
$setting_id = sprintf( 'widget_%s[%d]', $id_base, $max_widget_numbers[ $id_base ] );
$setting_value = $this->widgets->sanitize_widget_js_instance( $instance );
if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {
$this->set_post_value( $setting_id, $setting_value );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
$sidebar_widget_ids[] = $widget_id;
}
$setting_id = sprintf( 'sidebars_widgets[%s]', $sidebar_id );
if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {
$this->set_post_value( $setting_id, $sidebar_widget_ids );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
}
$starter_content_auto_draft_post_ids = array();
if ( ! empty( $changeset_data['nav_menus_created_posts']['value'] ) ) {
$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, $changeset_data['nav_menus_created_posts']['value'] );
}
// Make an index of all the posts needed and what their slugs are.
$needed_posts = array();
$attachments = $this->prepare_starter_content_attachments( $attachments );
foreach ( $attachments as $attachment ) {
$key = 'attachment:' . $attachment['post_name'];
$needed_posts[ $key ] = true;
}
foreach ( array_keys( $posts ) as $post_symbol ) {
if ( empty( $posts[ $post_symbol ]['post_name'] ) && empty( $posts[ $post_symbol ]['post_title'] ) ) {
unset( $posts[ $post_symbol ] );
continue;
}
if ( empty( $posts[ $post_symbol ]['post_name'] ) ) {
$posts[ $post_symbol ]['post_name'] = sanitize_title( $posts[ $post_symbol ]['post_title'] );
}
if ( empty( $posts[ $post_symbol ]['post_type'] ) ) {
$posts[ $post_symbol ]['post_type'] = 'post';
}
$needed_posts[ $posts[ $post_symbol ]['post_type'] . ':' . $posts[ $post_symbol ]['post_name'] ] = true;
}
$all_post_slugs = array_merge(
wp_list_pluck( $attachments, 'post_name' ),
wp_list_pluck( $posts, 'post_name' )
);
/*
* Obtain all post types referenced in starter content to use in query.
* This is needed because 'any' will not account for post types not yet registered.
*/
$post_types = array_filter( array_merge( array( 'attachment' ), wp_list_pluck( $posts, 'post_type' ) ) );
// Re-use auto-draft starter content posts referenced in the current customized state.
$existing_starter_content_posts = array();
if ( ! empty( $starter_content_auto_draft_post_ids ) ) {
$existing_posts_query = new WP_Query(
array(
'post__in' => $starter_content_auto_draft_post_ids,
'post_status' => 'auto-draft',
'post_type' => $post_types,
'posts_per_page' => -1,
)
);
foreach ( $existing_posts_query->posts as $existing_post ) {
$post_name = $existing_post->post_name;
if ( empty( $post_name ) ) {
$post_name = get_post_meta( $existing_post->ID, '_customize_draft_post_name', true );
}
$existing_starter_content_posts[ $existing_post->post_type . ':' . $post_name ] = $existing_post;
}
}
// Re-use non-auto-draft posts.
if ( ! empty( $all_post_slugs ) ) {
$existing_posts_query = new WP_Query(
array(
'post_name__in' => $all_post_slugs,
'post_status' => array_diff( get_post_stati(), array( 'auto-draft' ) ),
'post_type' => 'any',
'posts_per_page' => -1,
)
);
foreach ( $existing_posts_query->posts as $existing_post ) {
$key = $existing_post->post_type . ':' . $existing_post->post_name;
if ( isset( $needed_posts[ $key ] ) && ! isset( $existing_starter_content_posts[ $key ] ) ) {
$existing_starter_content_posts[ $key ] = $existing_post;
}
}
}
// Attachments are technically posts but handled differently.
if ( ! empty( $attachments ) ) {
$attachment_ids = array();
foreach ( $attachments as $symbol => $attachment ) {
$file_array = array(
'name' => $attachment['file_name'],
);
$file_path = $attachment['file_path'];
$attachment_id = null;
$attached_file = null;
if ( isset( $existing_starter_content_posts[ 'attachment:' . $attachment['post_name'] ] ) ) {
$attachment_post = $existing_starter_content_posts[ 'attachment:' . $attachment['post_name'] ];
$attachment_id = $attachment_post->ID;
$attached_file = get_attached_file( $attachment_id );
if ( empty( $attached_file ) || ! file_exists( $attached_file ) ) {
$attachment_id = null;
$attached_file = null;
} elseif ( $this->get_stylesheet() !== get_post_meta( $attachment_post->ID, '_starter_content_theme', true ) ) {
// Re-generate attachment metadata since it was previously generated for a different theme.
$metadata = wp_generate_attachment_metadata( $attachment_post->ID, $attached_file );
wp_update_attachment_metadata( $attachment_id, $metadata );
update_post_meta( $attachment_id, '_starter_content_theme', $this->get_stylesheet() );
}
}
// Insert the attachment auto-draft because it doesn't yet exist or the attached file is gone.
if ( ! $attachment_id ) {
// Copy file to temp location so that original file won't get deleted from theme after sideloading.
$temp_file_name = wp_tempnam( wp_basename( $file_path ) );
if ( $temp_file_name && copy( $file_path, $temp_file_name ) ) {
$file_array['tmp_name'] = $temp_file_name;
}
if ( empty( $file_array['tmp_name'] ) ) {
continue;
}
$attachment_post_data = array_merge(
wp_array_slice_assoc( $attachment, array( 'post_title', 'post_content', 'post_excerpt' ) ),
array(
'post_status' => 'auto-draft', // So attachment will be garbage collected in a week if changeset is never published.
)
);
$attachment_id = media_handle_sideload( $file_array, 0, null, $attachment_post_data );
if ( is_wp_error( $attachment_id ) ) {
continue;
}
update_post_meta( $attachment_id, '_starter_content_theme', $this->get_stylesheet() );
update_post_meta( $attachment_id, '_customize_draft_post_name', $attachment['post_name'] );
}
$attachment_ids[ $symbol ] = $attachment_id;
}
$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, array_values( $attachment_ids ) );
}
// Posts & pages.
if ( ! empty( $posts ) ) {
foreach ( array_keys( $posts ) as $post_symbol ) {
if ( empty( $posts[ $post_symbol ]['post_type'] ) || empty( $posts[ $post_symbol ]['post_name'] ) ) {
continue;
}
$post_type = $posts[ $post_symbol ]['post_type'];
if ( ! empty( $posts[ $post_symbol ]['post_name'] ) ) {
$post_name = $posts[ $post_symbol ]['post_name'];
} elseif ( ! empty( $posts[ $post_symbol ]['post_title'] ) ) {
$post_name = sanitize_title( $posts[ $post_symbol ]['post_title'] );
} else {
continue;
}
// Use existing auto-draft post if one already exists with the same type and name.
if ( isset( $existing_starter_content_posts[ $post_type . ':' . $post_name ] ) ) {
$posts[ $post_symbol ]['ID'] = $existing_starter_content_posts[ $post_type . ':' . $post_name ]->ID;
continue;
}
// Translate the featured image symbol.
if ( ! empty( $posts[ $post_symbol ]['thumbnail'] )
&& preg_match( '/^{{(?P<symbol>.+)}}$/', $posts[ $post_symbol ]['thumbnail'], $matches )
&& isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$posts[ $post_symbol ]['meta_input']['_thumbnail_id'] = $attachment_ids[ $matches['symbol'] ];
}
if ( ! empty( $posts[ $post_symbol ]['template'] ) ) {
$posts[ $post_symbol ]['meta_input']['_wp_page_template'] = $posts[ $post_symbol ]['template'];
}
$r = $this->nav_menus->insert_auto_draft_post( $posts[ $post_symbol ] );
if ( $r instanceof WP_Post ) {
$posts[ $post_symbol ]['ID'] = $r->ID;
}
}
$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, wp_list_pluck( $posts, 'ID' ) );
}
// The nav_menus_created_posts setting is why nav_menus component is dependency for adding posts.
if ( ! empty( $this->nav_menus ) && ! empty( $starter_content_auto_draft_post_ids ) ) {
$setting_id = 'nav_menus_created_posts';
$this->set_post_value( $setting_id, array_unique( array_values( $starter_content_auto_draft_post_ids ) ) );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
// Nav menus.
$placeholder_id = -1;
$reused_nav_menu_setting_ids = array();
foreach ( $nav_menus as $nav_menu_location => $nav_menu ) {
$nav_menu_term_id = null;
$nav_menu_setting_id = null;
$matches = array();
// Look for an existing placeholder menu with starter content to re-use.
foreach ( $changeset_data as $setting_id => $setting_params ) {
$can_reuse = (
! empty( $setting_params['starter_content'] )
&&
! in_array( $setting_id, $reused_nav_menu_setting_ids, true )
&&
preg_match( '#^nav_menu\[(?P<nav_menu_id>-?\d+)\]$#', $setting_id, $matches )
);
if ( $can_reuse ) {
$nav_menu_term_id = intval( $matches['nav_menu_id'] );
$nav_menu_setting_id = $setting_id;
$reused_nav_menu_setting_ids[] = $setting_id;
break;
}
}
if ( ! $nav_menu_term_id ) {
while ( isset( $changeset_data[ sprintf( 'nav_menu[%d]', $placeholder_id ) ] ) ) {
$placeholder_id--;
}
$nav_menu_term_id = $placeholder_id;
$nav_menu_setting_id = sprintf( 'nav_menu[%d]', $placeholder_id );
}
$this->set_post_value(
$nav_menu_setting_id,
array(
'name' => isset( $nav_menu['name'] ) ? $nav_menu['name'] : $nav_menu_location,
)
);
$this->pending_starter_content_settings_ids[] = $nav_menu_setting_id;
// @todo Add support for menu_item_parent.
$position = 0;
foreach ( $nav_menu['items'] as $nav_menu_item ) {
$nav_menu_item_setting_id = sprintf( 'nav_menu_item[%d]', $placeholder_id-- );
if ( ! isset( $nav_menu_item['position'] ) ) {
$nav_menu_item['position'] = $position++;
}
$nav_menu_item['nav_menu_term_id'] = $nav_menu_term_id;
if ( isset( $nav_menu_item['object_id'] ) ) {
if ( 'post_type' === $nav_menu_item['type'] && preg_match( '/^{{(?P<symbol>.+)}}$/', $nav_menu_item['object_id'], $matches ) && isset( $posts[ $matches['symbol'] ] ) ) {
$nav_menu_item['object_id'] = $posts[ $matches['symbol'] ]['ID'];
if ( empty( $nav_menu_item['title'] ) ) {
$original_object = get_post( $nav_menu_item['object_id'] );
$nav_menu_item['title'] = $original_object->post_title;
}
} else {
continue;
}
} else {
$nav_menu_item['object_id'] = 0;
}
if ( empty( $changeset_data[ $nav_menu_item_setting_id ] ) || ! empty( $changeset_data[ $nav_menu_item_setting_id ]['starter_content'] ) ) {
$this->set_post_value( $nav_menu_item_setting_id, $nav_menu_item );
$this->pending_starter_content_settings_ids[] = $nav_menu_item_setting_id;
}
}
$setting_id = sprintf( 'nav_menu_locations[%s]', $nav_menu_location );
if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {
$this->set_post_value( $setting_id, $nav_menu_term_id );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
}
// Options.
foreach ( $options as $name => $value ) {
// Serialize the value to check for post symbols.
$value = maybe_serialize( $value );
if ( is_serialized( $value ) ) {
if ( preg_match( '/s:\d+:"{{(?P<symbol>.+)}}"/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$symbol_match = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$symbol_match = $attachment_ids[ $matches['symbol'] ];
}
// If we have any symbol matches, update the values.
if ( isset( $symbol_match ) ) {
// Replace found string matches with post IDs.
$value = str_replace( $matches[0], "i:{$symbol_match}", $value );
} else {
continue;
}
}
} elseif ( preg_match( '/^{{(?P<symbol>.+)}}$/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$value = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$value = $attachment_ids[ $matches['symbol'] ];
} else {
continue;
}
}
// Unserialize values after checking for post symbols, so they can be properly referenced.
$value = maybe_unserialize( $value );
if ( empty( $changeset_data[ $name ] ) || ! empty( $changeset_data[ $name ]['starter_content'] ) ) {
$this->set_post_value( $name, $value );
$this->pending_starter_content_settings_ids[] = $name;
}
}
// Theme mods.
foreach ( $theme_mods as $name => $value ) {
// Serialize the value to check for post symbols.
$value = maybe_serialize( $value );
// Check if value was serialized.
if ( is_serialized( $value ) ) {
if ( preg_match( '/s:\d+:"{{(?P<symbol>.+)}}"/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$symbol_match = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$symbol_match = $attachment_ids[ $matches['symbol'] ];
}
// If we have any symbol matches, update the values.
if ( isset( $symbol_match ) ) {
// Replace found string matches with post IDs.
$value = str_replace( $matches[0], "i:{$symbol_match}", $value );
} else {
continue;
}
}
} elseif ( preg_match( '/^{{(?P<symbol>.+)}}$/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$value = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$value = $attachment_ids[ $matches['symbol'] ];
} else {
continue;
}
}
// Unserialize values after checking for post symbols, so they can be properly referenced.
$value = maybe_unserialize( $value );
// Handle header image as special case since setting has a legacy format.
if ( 'header_image' === $name ) {
$name = 'header_image_data';
$metadata = wp_get_attachment_metadata( $value );
if ( empty( $metadata ) ) {
continue;
}
$value = array(
'attachment_id' => $value,
'url' => wp_get_attachment_url( $value ),
'height' => $metadata['height'],
'width' => $metadata['width'],
);
} elseif ( 'background_image' === $name ) {
$value = wp_get_attachment_url( $value );
}
if ( empty( $changeset_data[ $name ] ) || ! empty( $changeset_data[ $name ]['starter_content'] ) ) {
$this->set_post_value( $name, $value );
$this->pending_starter_content_settings_ids[] = $name;
}
}
if ( ! empty( $this->pending_starter_content_settings_ids ) ) {
if ( did_action( 'customize_register' ) ) {
$this->_save_starter_content_changeset();
} else {
add_action( 'customize_register', array( $this, '_save_starter_content_changeset' ), 1000 );
}
}
}