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class-post-public.php
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<?php
/**
* Class for handling the public, content handling post types.
*
* @package Babble
* @since 0.1
*/
class Babble_Post_Public extends Babble_Plugin {
/**
* A simple flag to stop infinite recursion when syncing
* post meta places.
*
* @var boolean
**/
protected $no_meta_recursion;
/**
* A simple flag to stop infinite recursion in various
* places (except for post meta).
*
* @var boolean
**/
protected $no_recursion;
/**
* The shadow (translated) post types created by this plugin.
*
* @var array
**/
protected $post_types;
/**
* A structure describing the languages served by various post types.
*
* @var array
**/
protected $lang_map;
/**
* Another structure describing the languages served by various post types.
*
* @var array
**/
protected $lang_map2;
/**
* A version number to use for cache busting, database updates, etc
*
* @var int
**/
protected $version;
/**
* An array of query_vars and slugs for our shadow post types,
* we use changes to this to determine if rewrite rules
* need flushing.
*
* @var array
**/
protected $slugs_and_vars;
/**
* An array of Post IDs for posts that are in the process of
* being deleted.
*
* @var array
**/
protected $deleting_post_ids;
/**
* An array of meta_keys, indexed by meta_key, containing
* meta_keys we KNOW to be added as unique.
*
* @var array
**/
protected $unique_meta_keys;
public function __construct() {
$this->setup( 'babble-post-public', 'plugin' );
$this->add_action( 'added_post_meta', null, null, 4 );
$this->add_action( 'admin_init' );
$this->add_action( 'clean_post_cache' );
$this->add_action( 'body_class', null, null, 2 );
$this->add_action( 'before_delete_post', 'clean_post_cache' );
$this->add_action( 'deleted_post', 'clean_post_cache' );
$this->add_action( 'deleted_post_meta', null, null, 4 );
$this->add_action( 'load-post-new.php', 'load_post_new' );
$this->add_action( 'manage_pages_custom_column', 'manage_posts_custom_column', null, 2 );
$this->add_action( 'manage_posts_custom_column', 'manage_posts_custom_column', null, 2 );
$this->add_action( 'parse_request' );
$this->add_action( 'post_updated' );
$this->add_action( 'pre_get_posts', null, 11 );
$this->add_action( 'registered_post_type', null, null, 2 );
$this->add_action( 'transition_post_status', null, null, 3 );
$this->add_action( 'updated_post_meta', null, null, 4 );
$this->add_action( 'wp_before_admin_bar_render' );
$this->add_filter( 'add_menu_classes' );
$this->add_filter( 'add_post_metadata', null, null, 5 );
$this->add_filter( 'bbl_sync_meta_key', 'sync_meta_key', null, 2 );
$this->add_filter( 'manage_posts_columns', 'manage_posts_columns', null, 2 );
$this->add_filter( 'page_link', null, null, 2 );
$this->add_filter( 'post_link', 'post_type_link', null, 3 );
$this->add_filter( 'post_type_archive_link', null, null, 2 );
$this->add_filter( 'post_type_link', null, null, 3 );
$this->add_filter( 'get_sample_permalink', null, null, 5 );
$this->add_filter( 'single_template' );
$this->add_filter( 'the_posts', null, null, 2 );
$this->add_filter( 'bbl_translated_taxonomy', null, null, 2 );
$this->add_filter( 'admin_body_class' );
$this->initiate();
}
/**
* Initiates
*
* @return void
**/
public function initiate() {
$this->lang_map = array();
$this->post_types = array();
$this->slugs_and_vars = array();
$this->no_meta_recursion = false;
$this->deleting_post_ids = array();
$this->version = 9;
// Ensure we catch any existing language shadow post_types already registered
$core_post_types = array( 'post', 'page', 'attachment' );
if ( is_array( $this->post_types ) )
$post_types = array_merge( $core_post_types, array_keys( $this->post_types ) );
else
$post_types = $core_post_types;
register_taxonomy( 'post_translation', $post_types, array(
'rewrite' => false,
'public' => false,
'show_ui' => false,
'show_in_nav_menus' => false,
) );
}
/**
* Hooks the WP admin_init action to
*
* @return void
**/
public function admin_init() {
$this->maybe_upgrade();
$post_type = false;
if ( isset( $_GET[ 'post_type' ] ) ) {
$post_type = $_GET[ 'post_type' ];
} else if ( isset( $_GET[ 'post' ] ) ) {
$post = (int) $_GET[ 'post' ];
$post = get_post( $post );
$post_type = $post->post_type;
}
$menu_id = false;
if ( isset( $this->post_types[ $post_type ] ) )
$menu_id = '#menu-posts-' . $this->post_types[ $post_type ];
$data = array(
'menu_id' => $menu_id,
'is_default_lang' => (bool) ( bbl_get_current_lang_code() == bbl_get_default_lang_code() ),
'is_bbl_post_type' => (bool) ( 0 === strpos( $post_type, 'bbl_' ) ),
);
wp_enqueue_script( 'post-public-admin', $this->url( 'js/post-public-admin.js' ), array( 'jquery' ), filemtime( $this->dir( 'js/post-public-admin.js' ) ) );
wp_localize_script( 'post-public-admin', 'bbl_post_public', $data );
}
/**
* Initialise a translation for the given post.
*
* @param WP_Post|int $origin_post The origin post object or post ID
* @param string $lang_code The language code for the new translation
* @return WP_Post The translation post
*/
public function initialise_translation( $origin_post, $lang_code ) {
$origin_post = get_post( $origin_post );
$new_post_type = $this->get_post_type_in_lang( $origin_post->post_type, $lang_code );
$transid = $this->get_transid( $origin_post->ID );
// Insert translation:
$this->no_recursion = true;
$new_post_id = wp_insert_post( array(
'post_type' => $new_post_type,
'post_status' => 'draft',
), true );
$this->no_recursion = false;
$new_post = get_post( $new_post_id );
// Assign transid to translation:
$this->set_transid( $new_post, $transid );
// Copy all the metadata across
$this->sync_post_meta( $new_post->ID );
// Copy the various core post properties across
$this->sync_properties( $origin_post->ID, $new_post->ID );
do_action( 'bbl_created_new_shadow_post', $new_post->ID, $origin_post->ID );
return $new_post;
}
/**
* Hooks the WP load-post-new.php action to stop translators
* creating new posts in languages other than the default.
*
* @return void
**/
public function load_post_new() {
$screen = get_current_screen();
if ( 'post' != $screen->base || 'add' != $screen->action )
return;
if ( bbl_get_current_lang_code() == bbl_get_default_lang_code() )
return;
if ( !bbl_is_translated_post_type( $screen->post_type ) )
return;
wp_die( __( 'You can only create content in your site\'s default language. Please consult your editorial team.', 'babble' ), '', array( 'back_link' => true ) );
}
/**
* Hooks the WP wp_before_admin_bar_render action
* to prune out unneeded post type add controls from
* the add menu.
*
* @return void
**/
public function wp_before_admin_bar_render() {
global $wp_admin_bar;
if ( ! bbl_is_default_lang() )
$wp_admin_bar->remove_node( 'new-content' );
}
/**
* Hooks the WP registered_post_type action.
*
* @param string $post_type The post type which has just been registered.
* @param object $args The arguments with which the post type was registered
* @return void
**/
public function registered_post_type( $post_type, $args ) {
// Don't bother with non-public post_types for now
// @FIXME: This may need to change for menus?
if ( false === $args->public )
return;
// Don't shadow shadow post types, it's going to get silly
if ( in_array( $post_type, $this->post_types ) )
return;
if ( $this->no_recursion )
return;
$this->no_recursion = 'registered_post_type';
$langs = bbl_get_active_langs();
// Lose the default language as any existing post types are in that language
unset( $langs[ bbl_get_default_lang_url_prefix() ] );
// $args is an object at this point, but register_post_type needs an array
$args = get_object_vars( $args );
// @FIXME: Is it reckless to convert ALL object instances in $args to an array?
foreach ( $args as $key => & $arg ) {
if ( is_object( $arg ) )
$arg = get_object_vars( $arg );
// Don't set any args reserved for built-in post_types
if ( '_' == substr( $key, 0, 1 ) )
unset( $args[ $key ] );
}
$features = $this->get_features_supported_by_post_type( $post_type );
$args[ 'supports' ] = array();
foreach ( $features as $feature => $true )
$args[ 'supports' ][] = $feature;
// I am a little concerned that this argument may make things
// brittle, e.g. the UI might stop showing up in the shadow
// post type edit screens, p'raps.
$args[ 'show_ui' ] = true;
$slug = ( $args[ 'rewrite' ][ 'slug' ] ) ? $args[ 'rewrite' ][ 'slug' ] : $post_type;
$archive_slug = false;
if ( $archive_slug = $args[ 'has_archive' ] )
if ( ! is_string( $args[ 'has_archive' ] ) )
$archive_slug = $slug;
$current_lang_code = bbl_get_current_lang_code();
foreach ( $langs as $lang ) {
$new_args = $args;
// @FIXME: We are in danger of a post_type name being longer than 20 chars
// I would prefer to keep the post_type human readable, as human devs and sysadmins always
// end up needing to read this kind of thing.
// @FIXME: Should I be sanitising these values?
$new_post_type = strtolower( "{$post_type}_{$lang->code}" );
if ( strlen( $new_post_type ) > 20 ) {
trigger_error( sprintf( __( 'Warning: The translated name for the post type %s is longer than %d characters. This *will* cause problems.', 'babble' ),
esc_html( $post_type ),
20
) );
}
if ( false !== $args[ 'rewrite' ] ) {
if ( ! is_array( $new_args[ 'rewrite' ] ) )
$new_args[ 'rewrite' ] = array();
$new_args[ 'query_var' ] = $new_args[ 'rewrite' ][ 'slug' ] = $this->get_slug_in_lang( $slug, $lang, $args );
$new_args[ 'has_archive' ] = $this->get_slug_in_lang( $archive_slug, $lang );
}
$this->slugs_and_vars[ $lang->code . '_' . $post_type ] = array(
'query_var' => $new_args[ 'query_var' ],
'has_archive' => $new_args[ 'has_archive' ],
);
$new_args['show_in_admin_bar'] = false;
// Don't let the translated post types show up in the search if their
// language is not the current language.
if ( $lang->code != $current_lang_code ) {
$new_args['exclude_from_search'] = true;
}
$result = register_post_type( $new_post_type, $new_args );
if ( is_wp_error( $result ) ) {
error_log( "Error creating shadow post_type for $new_post_type: " . print_r( $result, true ) );
} else {
$this->post_types[ $new_post_type ] = $post_type;
$this->lang_map[ $new_post_type ] = $lang->code;
// @TODO: Refactor the $this::lang_map array so we can use this new structure instead
if ( ! isset( $this->lang_map2[ $lang->code ] ) || ! is_array( $this->lang_map2[ $lang->code ] ) )
$this->lang_map2[ $lang->code ] = array();
$this->lang_map2[ $lang->code ][ $post_type ] = $new_post_type;
// This will not work until init has run at the early priority used
// to register the post_translation taxonomy. However we catch all the
// post_types registered before the hook runs, so we don't miss any
// (take a look at where we register post_translation for more info).
register_taxonomy_for_object_type( 'post_translation', $new_post_type );
}
}
// Exclude the registered post type from search if it's language isn't
// the current language.
if ( $current_lang_code != bbl_get_default_lang_code() ) {
$post_type_obj = get_post_type_object( $post_type );
$post_type_obj->exclude_from_search = true;
}
do_action( 'bbl_registered_shadow_post_types', $post_type );
$this->no_recursion = false;
}
/**
* Store whether a particular meta_key is unique or not. Pretty hacky.
*
* @param null $null Follows a pattern for actions/filters relating to meta, but meta ID not set yet so null
* @param int $post_id The ID for the WordPress Post object this meta relates to
* @param string $meta_key The key for this meta entry
* @param mixed $meta_value The new value for this meta entry
* @param bool $unique Whether the meta_key should be unique
* @return null Always return null, or we are bypassing the meta save to DB
**/
public function add_post_metadata( $null, $post_id, $meta_key, $meta_value, $unique ) {
if ( $unique ) {
$this->unique_meta_keys[ $meta_key ] = $meta_key;
}
return null;
}
/**
* Hooks the WP added_post_meta action to sync metadata across to the
* translations in shadow post types.
*
* @param int $meta_id The ID for this meta entry
* @param int $post_id The ID for the WordPress Post object this meta relates to
* @param string $meta_key The key for this meta entry
* @param mixed $meta_value The new value for this meta entry
* @return void
**/
public function added_post_meta( $meta_id, $post_id, $meta_key, $meta_value ) {
// Some metadata shouldn't be synced
if ( ! apply_filters( 'bbl_sync_meta_key', true, $meta_key ) )
return;
if ( $this->no_meta_recursion )
return;
$this->no_meta_recursion = 'added_post_meta';
$unique = isset( $this->unique_meta_keys[ $meta_key ] );
$translations = $this->get_post_translations( $post_id );
foreach ( $translations as $lang_code => & $translation ) {
if ( $this->get_post_lang_code( $post_id ) == $lang_code )
continue;
add_post_meta( $translation->ID, $meta_key, $meta_value, $unique );
}
$this->no_meta_recursion = false;
}
/**
* Hooks the WP updated_post_meta action to sync metadata across to the
* translations in shadow post types.
*
* @param int $meta_id The ID for this meta entry
* @param int $post_id The ID for the WordPress Post object this meta relates to
* @param string $meta_key The key for this meta entry
* @param mixed $meta_value The new value for this meta entry
* @return void
**/
public function updated_post_meta( $meta_id, $post_id, $meta_key, $meta_value ) {
// Some metadata shouldn't be synced
if ( ! apply_filters( 'bbl_sync_meta_key', true, $meta_key ) )
return;
if ( $this->no_meta_recursion )
return;
$this->no_meta_recursion = 'updated_post_meta';
$translations = $this->get_post_translations( $post_id );
foreach ( $translations as $lang_code => & $translation ) {
if ( $this->get_post_lang_code( $post_id ) == $lang_code )
continue;
update_post_meta( $translation->ID, $meta_key, $meta_value );
}
$this->updated_post_meta = false;
}
/**
* Hooks the WP deleted_post_meta action to sync metadata across to the
* translations in shadow post types.
*
* @param int $meta_id The ID for this meta entry
* @param int $post_id The ID for the WordPress Post object this meta relates to
* @param string $meta_key The key for this meta entry
* @param mixed $meta_value The new value for this meta entry
* @return void
**/
public function deleted_post_meta( $meta_id, $post_id, $meta_key, $meta_value ) {
// When we are deleting posts, we don't want to sync
// the metadata deletion across the other posts in
// the same translation group
if ( in_array( $post_id, $this->deleting_post_ids ) )
return;
// Some metadata shouldn't be synced
if ( ! apply_filters( 'bbl_sync_meta_key', true, $meta_key ) )
return;
if ( $this->no_meta_recursion )
return;
$this->no_meta_recursion = 'deleted_post_meta';
$translations = $this->get_post_translations( $post_id );
foreach ( $translations as $lang_code => & $translation ) {
if ( $this->get_post_lang_code( $post_id ) == $lang_code )
continue;
delete_post_meta( $translation->ID, $meta_key );
}
$this->no_meta_recursion = false;
}
/**
* Hooks the WP pre_get_posts ref action in the WP_Query,
* for the main query it does nothing, for other queries
* it switches the post types to our shadow post types.
*
* @param WP_Query $wp_query A WP_Query object, passed by reference
* @return void (param passed by reference)
**/
public function pre_get_posts( WP_Query & $query ) {
if ( false === $query->get( 'bbl_translate' ) ) {
return;
}
if ( $query->is_main_query() ) {
return;
}
# @TODO we should scrap this and more intelligently filter the QVs rather than basing it on whether we're on a media tab
if ( $this->is_media_upload_tab( 'gallery' ) ) {
return;
}
if ( $this->is_media_manager() ) {
return;
}
$query->query_vars = $this->translate_query_vars( $query->query_vars );
}
/**
* Hooks the WP parse_request action
*
* FIXME: Should I be extending and replacing the WP class?
*
* @param WP $wp WP object, passed by reference (so no need to return)
* @return void
**/
public function parse_request( WP & $wp ) {
if ( isset( $wp->query_vars['bbl_translate'] ) and ( false === $wp->query_vars['bbl_translate'] ) ) {
return;
}
if ( is_admin() ) {
return;
}
$wp->query_vars = $this->translate_query_vars( $wp->query_vars, $wp->request );
}
/**
* Hooks the WP the_posts filter on WP_Query.
*
* Check the post_title, post_excerpt, post_content and substitute from
* the default language where appropriate.
*
* @param array $posts The posts retrieved by WP_Query, passed by reference
* @param WP_Query $wp_query The WP_Query, passed by reference
* @return array The posts
**/
public function the_posts( array $posts, WP_Query & $wp_query ) {
if ( is_admin() )
return $posts;
// Get fallback content in the default language
$subs_index = array();
foreach ( $posts as & $post ) {
if ( empty( $post->post_title ) || empty( $post->post_excerpt ) || empty( $post->post_content ) ) {
if ( $default_post = bbl_get_default_lang_post( $post->ID ) )
$subs_index[ $post->ID ] = $default_post->ID;
}
if ( ! $this->get_transid( $post ) && bbl_get_default_lang_code() == bbl_get_post_lang_code( $post ) )
$this->set_transid( $post );
}
if ( ! $subs_index )
return $posts;
$subs_posts = get_posts( array( 'include' => array_values( $subs_index ), 'post_status' => 'publish' ) );
// @FIXME: Check the above get_posts call results are cached somewhere… I think they are
// @FIXME: Alternative approach: hook on save_post to save the current value to the translation, BUT content could get out of date – in post_content_filtered
foreach ( $posts as & $post ) {
// @TODO why does this only override the title/excerpt/content? Why not override the post object entirely?
// @FIXME: I'm assuming this get_post call is cached, which it seems to be
if( isset( $subs_index[ $post->ID ] ) ) {
$default_post = get_post( $subs_index[ $post->ID ] );
if ( empty( $post->post_title ) )
$post->post_title = $default_post->post_title;
if ( empty( $post->post_excerpt ) )
$post->post_excerpt = $default_post->post_excerpt;
if ( empty( $post->post_content ) )
$post->post_content = $default_post->post_content;
}
}
return $posts;
}
/**
* Hooks the WP body_class filter to add classes to the
* body element.
*
* @param array $classes An array of class strings, poss with some indexes containing more than one space separated class
* @param string|array $class One or more classes which have been added to the class list.
* @return array An array of class strings, poss with some indexes containing more than one space separated class
**/
public function body_class( array $classes, $class ) {
// Shadow post_type archives also get the post_type class for
// the default language
if ( is_post_type_archive() && ! bbl_is_default_lang() )
$classes[] = 'post-type-archive-' . bbl_get_post_type_in_lang( get_query_var( 'post_type' ), bbl_get_default_lang_code() );
if ( is_single() )
$classes[] = 'single-' . bbl_get_base_post_type( get_post_type() );
return $classes;
}
/**
* Hooks the WP post_type_link filter
*
* @param string $post_link The permalink
* @param object $post The WP Post object being linked to
* @return string The permalink
**/
public function post_type_link( $post_link, $post, $leavename ) {
global $wp_rewrite;
// Regular ol' post types, and other types added by other plugins, etc
if ( 'post' == $post->post_type || 'page' == $post->post_type || ! isset( $this->post_types[ $post->post_type ] ) )
return user_trailingslashit( $post_link );
// Deal with our shadow post types
if ( ! ( $base_post_type = $this->get_base_post_type( $post->post_type ) ) )
return user_trailingslashit( $post_link );
// Deal with post_types shadowing the post post_type
if ( 'post' == $base_post_type ) {
// @FIXME: Probably move this into another function
// @FIXME: Is there any way I can provide an appropriate permastruct so I can avoid having to copy all this code, with the associated maintenance headaches?
// START copying from get_permalink function
// N.B. The $permalink var is replaced with $post_link
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
'%postname%',
'%post_id%',
'%category%',
'%author%',
'%pagename%',
);
$post_link = get_option('permalink_structure');
// @FIXME: Should I somehow fake this, so plugin authors who hook it still get some consequence?
// $post_link = apply_filters('pre_post_link', $post_link, $post, $leavename);
if ( '' != $post_link && ! in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) {
$unixtime = strtotime($post->post_date);
$category = '';
if ( strpos($post_link, '%category%') !== false ) {
$cats = get_the_category($post->ID);
if ( $cats ) {
usort($cats, '_usort_terms_by_ID'); // order by ID
$category = $cats[0]->slug;
if ( $parent = $cats[0]->parent )
$category = get_category_parents($parent, false, '/', true) . $category;
}
// show default category in permalinks, without
// having to assign it explicitly
if ( empty($category) ) {
$default_category = get_category( get_option( 'default_category' ) );
$category = is_wp_error( $default_category ) ? '' : $default_category->slug;
}
}
$author = '';
if ( strpos($post_link, '%author%') !== false ) {
$authordata = get_userdata($post->post_author);
$author = $authordata->user_nicename;
}
$date = explode(" ",date('Y m d H i s', $unixtime));
$rewritereplace =
array(
$date[0],
$date[1],
$date[2],
$date[3],
$date[4],
$date[5],
$post->post_name,
$post->ID,
$category,
$author,
$post->post_name,
);
$lang = bbl_get_post_lang_code( $post );
bbl_switch_to_lang( $lang );
$post_link = home_url( str_replace( $rewritecode, $rewritereplace, $post_link ) );
bbl_restore_lang();
$post_link = user_trailingslashit($post_link, 'single');
// END copying from get_permalink function
return $post_link;
} else { // if they're not using the fancy permalink option the link won't work. Known bug. :)
return $post_link;
}
} else if ( 'page' == $base_post_type ) {
return get_page_link( $post->ID, $leavename );
}
return user_trailingslashit( $post_link );
}
/**
* Hooks the get_sample_permalink filter to provide a correct sample permalink
* in situations where the post_name has been hacked for a particular context.
*
* @filter get_sample_permalink (not yet in existence, see http://core.trac.wordpress.org/attachment/ticket/22338)
*
* @param array $permalink The array, like array( $permalink, $post_name )
* @param string $title A desired title (could be null)
* @param string $name A desired post name (could be null)
* @param int $id The Post ID
* @param object $post A (hacked) Post object
* @return array The array, like array( $permalink, $post_name )
*/
public function get_sample_permalink( $permalink, $title, $name, $id, $post ) {
$permalink[ 0 ] = $this->post_type_link( $permalink[ 0 ], $post, $leavename );
return $permalink;
}
/**
* Hooks the WP page_link filter to ensure correct virtual language directory prefix, etc.
*
* @param string $link The permalink for the page
* @param int $id The ID for the post represented by this permalink
* @return string
**/
public function page_link( $link, $post_id ) {
if ( $this->no_recursion )
return $link;
// Deal with the language front pages
if ( 'page' == get_option('show_on_front') && $page_on_front = get_option( 'page_on_front' ) ) {
$front_page_transid = $this->get_transid( $page_on_front );
$this_transid = $this->get_transid( $post_id );
if ( $front_page_transid == $this_transid ) {
bbl_switch_to_lang( bbl_get_post_lang_code( $post_id ) );
$link = home_url();
bbl_restore_lang();
return $link;
}
}
$this->no_recursion = 'page_link';
$lang = bbl_get_post_lang_code( $post_id );
bbl_switch_to_lang( $lang );
$link = get_page_link( $post_id );
bbl_restore_lang();
$this->no_recursion = false;
return $link;
}
/**
* Hooks the WP post_type_archive_link filter to return the correct
* post type archive link for the current language.
*
* @param string $link The link to the post type archive (probably wrong for this language)
* @param string $post_type The post_type we need an archive for (though we'll probably need to use a translated (shadow) post_type)
* @return string A URL for the translated (shadow) post_type archive
**/
public function post_type_archive_link( $link, $post_type ) {
if ( $this->no_recursion )
return $link;
$this->no_recursion = 'post_type_archive_link';
$lang_post_type = $this->get_post_type_in_lang( $post_type, bbl_get_current_lang_code() );
bbl_switch_to_lang( bbl_get_current_lang_code() );
$link = get_post_type_archive_link( $lang_post_type );
bbl_restore_lang();
$this->no_recursion = false;
return $link;
}
/**
* Hooks the WP clean_post_cache action to clear the Babble
* post translation and transid caches.
*
* Occasionally called directly by within this class.
*
* @param int $post_id The ID of the post to clear the caches for
* @return void
**/
function clean_post_cache( $post_id ) {
wp_cache_delete( $post_id, 'bbl_post_transids' );
// clean_post_cache gets called in some situations where
// the post is already deleted, in which case do not
// force the creation of a transid.
if ( ! $transid = $this->get_transid( $post_id, false ) ) {
return;
}
wp_cache_delete( $transid, 'bbl_post_translations' );
}
/**
* Hooks the WP post_updated action to ensure that the
* required properties are copied to the other posts in
* this translation group.
*
* @param int $post_id The ID of the post being updated
* @return void
**/
public function post_updated( $post_id ) {
if ( $this->no_recursion )
return;
$this->no_recursion = 'post_updated';
$transid = $this->get_transid( $post_id );
$this->clean_post_cache( $post_id );
$translations = $this->get_post_translations( $post_id );
foreach ( $translations as $lang_code => & $translation ) {
if ( $translation->ID == $post_id )
continue;
// Copy the various core post properties across
$this->sync_properties( $post_id, $translation->ID );
}
// Revert comment status, which often gets turned off by
// auto drafts.
$post_lang_code = bbl_get_post_lang_code( $post_id );
if ( bbl_get_default_lang_code() != $post_lang_code ) {
$source_post = bbl_get_post_in_lang( $post_id, bbl_get_default_lang_code() );
$target_post = get_post( $post_id );
$post_data = array(
'ID' => $post_id,
'comment_status' => $source_post->comment_status,
'post_modified' => $target_post->post_modified,
'post_modified_gmt' => $target_post->post_modified_gmt,
);
wp_update_post( $post_data );
}
$this->no_recursion = false;
}
/**
* Hooks the WP transition_post_status action which fires whenever
* a post status changes through use of wp_transition_post_status.
*
* @param string $new_status The new status
* @param string $old_status The old status
* @param object $post The post object
* @return void
**/
public function transition_post_status( $new_status, $old_status, $post ) {
if ( $new_status == $old_status )
return;
if ( $this->no_recursion ) {
return;
}
$this->no_recursion = 'transition_post_status';
if ( 'publish' == $new_status && $new_status != $old_status ) {
// Ensure the date of publication of a translation gets
// sync'd immediately with the original language post.
if ( bbl_get_default_lang_code() != bbl_get_post_lang_code( $post->ID ) ) {
$source_post = bbl_get_post_in_lang( $post->ID, bbl_get_default_lang_code() );
$postdata = array(
'ID' => $post->ID,
'post_date' =>$source_post->post_date,
);
wp_update_post( $postdata );
}
}
$this->no_recursion = false;
}
/**
* Hooks the WP add_menu_classes filter to fixup the side
* admin menu.
*
* @param array $menu The WP admin menu
* @return array The WP admin menu
**/
public function add_menu_classes( $menu ) {
global $submenu;
$lang = bbl_get_current_lang_code();
$default = bbl_get_default_lang_code();
// Remove "new post" links from submenu(s) for non-default languages
if ( $lang != $default ) {
foreach ( $submenu as $parent => $items ) {
foreach ( $items as $key => $item ) {
if ( 'post-new.php' == substr( $item[ 2 ], 0, 12 ) ) {
unset( $submenu[ $parent ][ $key ] );
}
}
}
}
// Remove links to shadow post types
foreach ( $menu as $key => $item ) {
$vars = array();
$url_info = parse_url( $item[ 2 ] );
if ( ! isset( $url_info[ 'query' ] ) )
continue;
parse_str( $url_info[ 'query' ], $vars );
if ( ! isset( $vars[ 'post_type' ] ) || ! isset( $this->post_types[ $vars[ 'post_type' ] ] ) )
continue;
unset( $menu[ $key ] );
}
return $menu;
}
/**
* Hooks the WP filter single_template to deal with the shadow post
* types for pages and singular templates, ensuring they use the
* right template.
*
* @param string $template Path to a template file
* @return Path to a template file
**/
public function single_template( $template ) {
if( bbl_is_default_lang() )
return $template;
// Deal with the language front pages and custom page templates
$post = get_post( get_the_ID() );
if ( 'page' == get_option('show_on_front') ) {
$front_page_transid = $this->get_transid( get_option( 'page_on_front' ) );
$this_transid = $this->get_transid( get_the_ID() );
// Check if this is a translation of the page on the front of the site
if ( $front_page_transid == $this_transid ) {
// global $wp_query, $wp;
if ( 'page' == $this->get_base_post_type( $post->post_type ) ) {
if ( $custom_page_template = get_post_meta( get_option( 'page_on_front' ), '_wp_page_template', true ) )
$templates = (array) $custom_page_template;
else
$templates = (array) 'page.php';
if ( $_template = locate_template( $templates ) ) {
return $_template;
}
}
}
}
// Check if we're dealing with a page or a translation of a page
if ( 'page' == $this->get_base_post_type( $post->post_type ) ) {
$custom_page_template = get_post_meta( get_the_ID(), '_wp_page_template', true );
if ( $custom_page_template && 'default' != $custom_page_template )
$templates = (array) $custom_page_template;
else
$templates = array( 'page.php' );
if ( $_template = locate_template( $templates ) ) {
return $_template;
}
}
$templates[] = "single-{$this->get_base_post_type($post->post_type)}.php";
$templates[] = "single.php";
$template = get_query_template( 'bbl-single', $templates );
return $template;
}
/**
* Hooks the bbl_sync_meta_key filter from this class which checks
* if a meta_key should be synced. If we return false, it won't be.
*
* @TODO correct inline docs
**/
function sync_meta_key( $sync, $meta_key ) {
$sync_not = array(
'_edit_last', // Related to edit lock, should be individual to translations
'_edit_lock', // The edit lock, should be individual to translations
'_bbl_default_text_direction', // The text direction, should be individual to translations
'_wp_trash_meta_status',
'_wp_trash_meta_time',
);
if ( in_array( $meta_key, $sync_not ) )
$sync = false;
return $sync;
}
/**
* Hooks the WP manage_posts_columns filter to add our “link” column.
*
* @param array $cols The columns for this post type lists table
* @param string $post_type The post type for this lists table
* @return array The columns
**/
public function manage_posts_columns( array $columns, $post_type ) {
// Insert our cols just before comments, or date.
if ( $post_type == bbl_get_post_type_in_lang( $post_type, bbl_get_default_lang_code() ) )
return $columns;
# @TODO is this phrase localisable? Might need changing.
$columns[ 'bbl_link' ] = __( 'Translation of', 'babble' );
return $columns;
}
/**
* Hooks the WP manage_posts_custom_column action to add our “link” content.
*
* @param string $column_name The name of this column
* @param int $post_id The ID for the post for the row which parents this column
* @return void
**/
public function manage_posts_custom_column( $column_name, $post_id ) {
if ( 'bbl_link' != $column_name )
return;
$default_post = bbl_get_post_in_lang( $post_id, bbl_get_default_lang_code() );
if ( ! $default_post ) {
echo '<em style="color: #bc0b0b">' . __( 'No link', 'babble' ) . '</em>';
return;
}
$edit_link = get_edit_post_link( $default_post->ID );
$edit_link = add_query_arg( array( 'lang' => bbl_get_default_lang_code() ), $edit_link );
bbl_switch_to_lang( bbl_get_default_lang_code() );