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co-authors-plus.php
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<?php
/*
Plugin Name: Co-Authors Plus
Plugin URI: http://wordpress.org/extend/plugins/co-authors-plus/
Description: Allows multiple authors to be assigned to a post. This plugin is an extended version of the Co-Authors plugin developed by Weston Ruter.
Version: 3.1.2
Author: Mohammad Jangda, Daniel Bachhuber, Automattic
Copyright: 2008-2015 Shared and distributed between Mohammad Jangda, Daniel Bachhuber, Weston Ruter
GNU General Public License, Free Software Foundation <http://creativecommons.org/licenses/GPL/2.0/>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
define( 'COAUTHORS_PLUS_VERSION', '3.1.2' );
require_once( dirname( __FILE__ ) . '/template-tags.php' );
require_once( dirname( __FILE__ ) . '/deprecated.php' );
require_once( dirname( __FILE__ ) . '/php/class-coauthors-template-filters.php' );
if ( defined( 'WP_CLI' ) && WP_CLI ) {
require_once( dirname( __FILE__ ) . '/php/class-wp-cli.php' );
}
class coauthors_plus {
// Name for the taxonomy we're using to store relationships
// and the post type we're using to store co-authors
var $coauthor_taxonomy = 'author';
var $coreauthors_meta_box_name = 'authordiv';
var $coauthors_meta_box_name = 'coauthorsdiv';
var $force_guest_authors = false;
var $gravatar_size = 25;
var $_pages_whitelist = array( 'post.php', 'post-new.php', 'edit.php' );
var $supported_post_types = array();
var $ajax_search_fields = array( 'display_name', 'first_name', 'last_name', 'user_login', 'ID', 'user_email' );
var $having_terms = '';
/**
* __construct()
*/
function __construct() {
// Register our models
add_action( 'init', array( $this, 'action_init' ) );
add_action( 'init', array( $this, 'action_init_late' ), 100 );
// Load admin_init function
add_action( 'admin_init', array( $this, 'admin_init' ) );
// Modify SQL queries to include coauthors
add_filter( 'posts_where', array( $this, 'posts_where_filter' ), 10, 2 );
add_filter( 'posts_join', array( $this, 'posts_join_filter' ), 10, 2 );
add_filter( 'posts_groupby', array( $this, 'posts_groupby_filter' ), 10, 2 );
// Action to set users when a post is saved
add_action( 'save_post', array( $this, 'coauthors_update_post' ), 10, 2 );
// Filter to set the post_author field when wp_insert_post is called
add_filter( 'wp_insert_post_data', array( $this, 'coauthors_set_post_author_field' ), 10, 2 );
// Action to reassign posts when a user is deleted
add_action( 'delete_user', array( $this, 'delete_user_action' ) );
add_filter( 'get_usernumposts', array( $this, 'filter_count_user_posts' ), 10, 2 );
// Action to set up author auto-suggest
add_action( 'wp_ajax_coauthors_ajax_suggest', array( $this, 'ajax_suggest' ) );
// Filter to allow coauthors to edit posts
add_filter( 'user_has_cap', array( $this, 'filter_user_has_cap' ), 10, 3 );
// Handle the custom author meta box
add_action( 'add_meta_boxes', array( $this, 'add_coauthors_box' ) );
add_action( 'add_meta_boxes', array( $this, 'remove_authors_box' ) );
// Removes the author dropdown from the post quick edit
add_action( 'admin_head', array( $this, 'remove_quick_edit_authors_box' ) );
// Restricts WordPress from blowing away term order on bulk edit
add_filter( 'wp_get_object_terms', array( $this, 'filter_wp_get_object_terms' ), 10, 4 );
// Make sure we've correctly set author data on author pages
add_filter( 'posts_selection', array( $this, 'fix_author_page' ) ); // use posts_selection since it's after WP_Query has built the request and before it's queried any posts
add_action( 'the_post', array( $this, 'fix_author_page' ) );
// Support for Edit Flow's calendar and story budget
add_filter( 'ef_calendar_item_information_fields', array( $this, 'filter_ef_calendar_item_information_fields' ), 10, 2 );
add_filter( 'ef_story_budget_term_column_value', array( $this, 'filter_ef_story_budget_term_column_value' ), 10, 3 );
// Support Jetpack Open Graph Tags
add_filter( 'jetpack_open_graph_tags', array( $this, 'filter_jetpack_open_graph_tags' ), 10, 2 );
// Filter to send comment moderation notification e-mail to multiple authors
add_filter( 'comment_moderation_recipients', 'cap_filter_comment_moderation_email_recipients', 10, 2 );
// Support infinite scroll for Guest Authors on author pages
add_filter( 'infinite_scroll_js_settings', array( $this, 'filter_infinite_scroll_js_settings' ), 10, 2 );
}
function coauthors_plus() {
$this->__construct();
}
/**
* Register the taxonomy used to managing relationships,
* and the custom post type to store our author data
*/
public function action_init() {
// Allow Co-Authors Plus to be easily translated
load_plugin_textdomain( 'co-authors-plus', null, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
// Load the Guest Authors functionality if needed
if ( $this->is_guest_authors_enabled() ) {
require_once( dirname( __FILE__ ) . '/php/class-coauthors-guest-authors.php' );
$this->guest_authors = new CoAuthors_Guest_Authors;
if ( apply_filters( 'coauthors_guest_authors_force', false ) ) {
$this->force_guest_authors = true;
}
}
// Maybe automatically apply our template tags
if ( apply_filters( 'coauthors_auto_apply_template_tags', false ) ) {
global $coauthors_plus_template_filters;
$coauthors_plus_template_filters = new CoAuthors_Template_Filters;
}
}
/**
* Register the 'author' taxonomy and add post type support
*/
public function action_init_late() {
// Register new taxonomy so that we can store all of the relationships
$args = array(
'hierarchical' => false,
'label' => false,
'query_var' => false,
'rewrite' => false,
'public' => false,
'sort' => true,
'args' => array( 'orderby' => 'term_order' ),
'show_ui' => false,
);
// If we use the nasty SQL query, we need our custom callback. Otherwise, we still need to flush cache.
if ( apply_filters( 'coauthors_plus_should_query_post_author', true ) ) {
$args['update_count_callback'] = array( $this, '_update_users_posts_count' );
} else {
add_action( 'edited_term_taxonomy', array( $this, 'action_edited_term_taxonomy_flush_cache' ), 10, 2 );
}
$post_types_with_authors = array_values( get_post_types() );
foreach ( $post_types_with_authors as $key => $name ) {
if ( ! post_type_supports( $name, 'author' ) || in_array( $name, array( 'revision', 'attachment' ) ) ) {
unset( $post_types_with_authors[ $key ] );
}
}
$this->supported_post_types = apply_filters( 'coauthors_supported_post_types', $post_types_with_authors );
register_taxonomy( $this->coauthor_taxonomy, $this->supported_post_types, $args );
}
/**
* Initialize the plugin for the admin
*/
public function admin_init() {
global $pagenow;
// Add the main JS script and CSS file
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
// Add necessary JS variables
add_action( 'admin_head', array( $this, 'js_vars' ) );
// Hooks to add additional coauthors to author column to Edit page
add_filter( 'manage_posts_columns', array( $this, '_filter_manage_posts_columns' ) );
add_filter( 'manage_pages_columns', array( $this, '_filter_manage_posts_columns' ) );
add_action( 'manage_posts_custom_column', array( $this, '_filter_manage_posts_custom_column' ) );
add_action( 'manage_pages_custom_column', array( $this, '_filter_manage_posts_custom_column' ) );
// Add quick-edit author select field
add_action( 'quick_edit_custom_box', array( $this, '_action_quick_edit_custom_box' ), 10, 2 );
// Hooks to modify the published post number count on the Users WP List Table
add_filter( 'manage_users_columns', array( $this, '_filter_manage_users_columns' ) );
add_filter( 'manage_users_custom_column', array( $this, '_filter_manage_users_custom_column' ), 10, 3 );
// Apply some targeted filters
add_action( 'load-edit.php', array( $this, 'load_edit' ) );
}
/**
* Check whether the guest authors functionality is enabled or not
* Guest authors can be disabled entirely with:
* add_filter( 'coauthors_guest_authors_enabled', '__return_false' )
*
* @since 3.0
*
* @return bool
*/
public function is_guest_authors_enabled() {
return apply_filters( 'coauthors_guest_authors_enabled', true );
}
/**
* Get a co-author object by a specific type of key
*
* @param string $key Key to search by (slug,email)
* @param string $value Value to search for
* @return object|false $coauthor The co-author on success, false on failure
*/
public function get_coauthor_by( $key, $value, $force = false ) {
// If Guest Authors are enabled, prioritize those profiles
if ( $this->is_guest_authors_enabled() && isset( $this->guest_authors ) ) {
$guest_author = $this->guest_authors->get_guest_author_by( $key, $value, $force );
if ( is_object( $guest_author ) ) {
return $guest_author;
}
}
switch ( $key ) {
case 'id':
case 'login':
case 'user_login':
case 'email':
case 'user_nicename':
case 'user_email':
if ( 'user_login' == $key ) {
$key = 'login';
}
if ( 'user_email' == $key ) {
$key = 'email';
}
if ( 'user_nicename' == $key ) {
$key = 'slug';
}
// Ensure we aren't doing the lookup by the prefixed value
if ( 'login' == $key || 'slug' == $key ) {
$value = preg_replace( '#^cap\-#', '', $value );
}
$user = get_user_by( $key, $value );
if ( ! $user ) {
return false;
}
$user->type = 'wpuser';
// However, if guest authors are enabled and there's a guest author linked to this
// user account, we want to use that instead
if ( $this->is_guest_authors_enabled() && isset( $this->guest_authors ) ) {
$guest_author = $this->guest_authors->get_guest_author_by( 'linked_account', $user->user_login );
if ( is_object( $guest_author ) ) {
$user = $guest_author;
}
}
return $user;
break;
}
return false;
}
/**
* Whether or not Co-Authors Plus is enabled for this post type
* Must be called after init
*
* @since 3.0
*
* @param string $post_type The name of the post type we're considering
* @return bool Whether or not it's enabled
*/
public function is_post_type_enabled( $post_type = null ) {
if ( ! $post_type ) {
$post_type = get_post_type();
}
return (bool) in_array( $post_type, $this->supported_post_types );
}
/**
* Removes the standard WordPress Author box.
* We don't need it because the Co-Authors one is way cooler.
*/
public function remove_authors_box() {
if ( $this->is_post_type_enabled() ) {
remove_meta_box( $this->coreauthors_meta_box_name, get_post_type(), 'normal' );
}
}
/**
* Adds a custom Authors box
*/
public function add_coauthors_box() {
if ( $this->is_post_type_enabled() && $this->current_user_can_set_authors() ) {
add_meta_box( $this->coauthors_meta_box_name, __( 'Authors', 'co-authors-plus' ), array( $this, 'coauthors_meta_box' ), get_post_type(), apply_filters( 'coauthors_meta_box_context', 'normal' ), apply_filters( 'coauthors_meta_box_priority', 'high' ) );
}
}
/**
* Callback for adding the custom author box
*/
public function coauthors_meta_box( $post ) {
global $post, $coauthors_plus, $current_screen;
$post_id = $post->ID;
$default_user = apply_filters( 'coauthors_default_author', wp_get_current_user() );
// @daniel, $post_id and $post->post_author are always set when a new post is created due to auto draft,
// and the else case below was always able to properly assign users based on wp_posts.post_author,
// but that's not possible with force_guest_authors = true.
if ( ! $post_id || 0 === $post_id || ( ! $post->post_author && ! $coauthors_plus->force_guest_authors ) || ( 'post' === $current_screen->base && 'add' === $current_screen->action ) ) {
$coauthors = array();
// If guest authors is enabled, try to find a guest author attached to this user ID
if ( $this->is_guest_authors_enabled() ) {
$coauthor = $coauthors_plus->guest_authors->get_guest_author_by( 'linked_account', $default_user->user_login );
if ( $coauthor ) {
$coauthors[] = $coauthor;
}
}
// If the above block was skipped, or if it failed to find a guest author, use the current
// logged in user, so long as force_guest_authors is false. If force_guest_authors = true, we are
// OK with having an empty authoring box.
if ( ! $coauthors_plus->force_guest_authors && empty( $coauthors ) ) {
if ( is_array( $default_user ) ) {
$coauthors = $default_user;
} else {
$coauthors[] = $default_user;
}
}
} else {
$coauthors = get_coauthors();
}
$count = 0;
if ( ! empty( $coauthors ) ) :
?>
<div id="coauthors-readonly" class="hide-if-js">
<ul>
<?php
foreach ( $coauthors as $coauthor ) :
$count++;
?>
<li>
<?php echo get_avatar( $coauthor->user_email, $this->gravatar_size ); ?>
<span id="coauthor-readonly-<?php echo $count; ?>" class="coauthor-tag">
<input type="text" name="coauthorsinput[]" readonly="readonly" value="<?php echo esc_attr( $coauthor->display_name ); ?>" />
<input type="text" name="coauthors[]" value="<?php echo esc_attr( $coauthor->user_login ); ?>" />
<input type="text" name="coauthorsemails[]" value="<?php echo esc_attr( $coauthor->user_email ); ?>" />
<input type="text" name="coauthorsnicenames[]" value="<?php echo esc_attr( $coauthor->user_nicename ); ?>" />
</span>
</li>
<?php
endforeach;
?>
</ul>
<div class="clear"></div>
<p><?php wp_kses( __( '<strong>Note:</strong> To edit post authors, please enable javascript or use a javascript-capable browser', 'co-authors-plus' ), array( 'strong' => array() ) ); ?></p>
</div>
<?php
endif;
?>
<div id="coauthors-edit" class="hide-if-no-js">
<p><?php wp_kses( __( 'Click on an author to change them. Drag to change their order. Click on <strong>Remove</strong> to remove them.', 'co-authors-plus' ), array( 'strong' => array() ) ); ?></p>
</div>
<?php wp_nonce_field( 'coauthors-edit', 'coauthors-nonce' ); ?>
<?php
}
/**
* Removes the author dropdown from the post quick edit
*/
function remove_quick_edit_authors_box() {
global $pagenow;
if ( 'edit.php' == $pagenow && $this->is_post_type_enabled() ) {
remove_post_type_support( get_post_type(), 'author' );
}
}
/**
* Add coauthors to author column on edit pages
*
* @param array $post_columns
*/
function _filter_manage_posts_columns( $posts_columns ) {
$new_columns = array();
if ( ! $this->is_post_type_enabled() ) {
return $posts_columns;
}
foreach ( $posts_columns as $key => $value ) {
$new_columns[ $key ] = $value;
if ( 'title' === $key ) {
$new_columns['coauthors'] = __( 'Authors', 'co-authors-plus' );
}
if ( 'author' === $key ) {
unset( $new_columns[ $key ] );
}
}
return $new_columns;
}
/**
* Insert coauthors into post rows on Edit Page
*
* @param string $column_name
*/
function _filter_manage_posts_custom_column( $column_name ) {
if ( 'coauthors' === $column_name ) {
global $post;
$authors = get_coauthors( $post->ID );
$count = 1;
foreach ( $authors as $author ) :
$args = array(
'author_name' => $author->user_nicename,
);
if ( 'post' != $post->post_type ) {
$args['post_type'] = $post->post_type;
}
$author_filter_url = add_query_arg( array_map( 'rawurlencode', $args ), admin_url( 'edit.php' ) );
?>
<a href="<?php echo esc_url( $author_filter_url ); ?>"
data-user_nicename="<?php echo esc_attr( $author->user_nicename ) ?>"
data-user_email="<?php echo esc_attr( $author->user_email ) ?>"
data-display_name="<?php echo esc_attr( $author->display_name ) ?>"
data-user_login="<?php echo esc_attr( $author->user_login ) ?>"
><?php echo esc_html( $author->display_name ); ?></a><?php echo ( $count < count( $authors ) ) ? ',' : ''; ?>
<?php
$count++;
endforeach;
}
}
/**
* Unset the post count column because it's going to be inaccurate and provide our own
*/
function _filter_manage_users_columns( $columns ) {
$new_columns = array();
// Unset and add our column while retaining the order of the columns
foreach ( $columns as $column_name => $column_title ) {
if ( 'posts' == $column_name ) {
$new_columns['coauthors_post_count'] = __( 'Posts', 'co-authors-plus' );
} else {
$new_columns[ $column_name ] = $column_title;
}
}
return $new_columns;
}
/**
* Provide an accurate count when looking up the number of published posts for a user
*/
function _filter_manage_users_custom_column( $value, $column_name, $user_id ) {
if ( 'coauthors_post_count' != $column_name ) {
return $value;
}
// We filter count_user_posts() so it provides an accurate number
$numposts = count_user_posts( $user_id );
$user = get_user_by( 'id', $user_id );
if ( $numposts > 0 ) {
$value .= "<a href='edit.php?author_name=$user->user_nicename' title='" . esc_attr__( 'View posts by this author', 'co-authors-plus' ) . "' class='edit'>";
$value .= $numposts;
$value .= '</a>';
} else {
$value .= 0;
}
return $value;
}
/**
* Quick Edit co-authors box.
*/
function _action_quick_edit_custom_box( $column_name, $post_type ) {
if ( 'coauthors' != $column_name || ! $this->is_post_type_enabled( $post_type ) || ! $this->current_user_can_set_authors() ) {
return;
}
?>
<label class="inline-edit-group inline-edit-coauthors">
<span class="title"><?php esc_html_e( 'Authors', 'co-authors-plus' ) ?></span>
<div id="coauthors-edit" class="hide-if-no-js">
<p><?php wp_kses( __( 'Click on an author to change them. Drag to change their order. Click on <strong>Remove</strong> to remove them.', 'co-authors-plus' ), array( 'strong' => array() ) ); ?></p>
</div>
<?php wp_nonce_field( 'coauthors-edit', 'coauthors-nonce' ); ?>
</label>
<?php
}
/**
* When we update the terms at all, we should update the published post count for each author
*/
function _update_users_posts_count( $tt_ids, $taxonomy ) {
global $wpdb;
$tt_ids = implode( ', ', array_map( 'intval', $tt_ids ) );
$term_ids = $wpdb->get_results( "SELECT term_id FROM $wpdb->term_taxonomy WHERE term_taxonomy_id IN ($tt_ids)" );
foreach ( (array) $term_ids as $term_id_result ) {
$term = get_term_by( 'id', $term_id_result->term_id, $this->coauthor_taxonomy );
$this->update_author_term_post_count( $term );
}
$tt_ids = explode( ', ', $tt_ids );
clean_term_cache( $tt_ids, '', false );
}
/**
* If we're forcing Co-Authors Plus to just do taxonomy queries, we still
* need to flush our special cache after a taxonomy term has been updated
*
* @since 3.1
*/
public function action_edited_term_taxonomy_flush_cache( $tt_id, $taxonomy ) {
global $wpdb;
if ( $this->coauthor_taxonomy != $taxonomy ) {
return;
}
$term_id = $wpdb->get_results( $wpdb->prepare( "SELECT term_id FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d ", $tt_id ) );
$term = get_term_by( 'id', $term_id[0]->term_id, $taxonomy );
$coauthor = $this->get_coauthor_by( 'user_nicename', $term->slug );
if ( ! $coauthor ) {
return new WP_Error( 'missing-coauthor', __( 'No co-author exists for that term', 'co-authors-plus' ) );
}
wp_cache_delete( 'author-term-' . $coauthor->user_nicename, 'co-authors-plus' );
}
/**
* Update the post count associated with an author term
*
* @since 3.0
*
* @param object $term The co-author term
*/
public function update_author_term_post_count( $term ) {
global $wpdb;
$coauthor = $this->get_coauthor_by( 'user_nicename', $term->slug );
if ( ! $coauthor ) {
return new WP_Error( 'missing-coauthor', __( 'No co-author exists for that term', 'co-authors-plus' ) );
}
$query = "SELECT COUNT({$wpdb->posts}.ID) FROM {$wpdb->posts}";
$query .= " LEFT JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)";
$query .= " LEFT JOIN {$wpdb->term_taxonomy} ON ( {$wpdb->term_relationships}.term_taxonomy_id = {$wpdb->term_taxonomy}.term_taxonomy_id )";
$having_terms_and_authors = $having_terms = $wpdb->prepare( "{$wpdb->term_taxonomy}.term_id = %d", $term->term_id );
if ( 'wpuser' == $coauthor->type ) {
$having_terms_and_authors .= $wpdb->prepare( " OR {$wpdb->posts}.post_author = %d", $coauthor->ID );
}
$post_types = apply_filters( 'coauthors_count_published_post_types', array( 'post' ) );
$post_types = array_map( 'sanitize_key', $post_types );
$post_types = "'" . implode( "','", $post_types ) . "'";
$query .= " WHERE ({$having_terms_and_authors}) AND {$wpdb->posts}.post_type IN ({$post_types}) AND {$wpdb->posts}.post_status = 'publish'";
$query .= $wpdb->prepare( " GROUP BY {$wpdb->posts}.ID HAVING MAX( IF ( {$wpdb->term_taxonomy}.taxonomy = '%s', IF ( {$having_terms},2,1 ),0 ) ) <> 1 ", $this->coauthor_taxonomy );
$count = $wpdb->query( $query );
$wpdb->update( $wpdb->term_taxonomy, array( 'count' => $count ), array( 'term_taxonomy_id' => $term->term_taxonomy_id ) );
wp_cache_delete( 'author-term-' . $coauthor->user_nicename, 'co-authors-plus' );
}
/**
* Modify the author query posts SQL to include posts co-authored
*/
function posts_join_filter( $join, $query ) {
global $wpdb;
if ( $query->is_author() ) {
if ( ! empty( $query->query_vars['post_type'] ) && ! is_object_in_taxonomy( $query->query_vars['post_type'], $this->coauthor_taxonomy ) ) {
return $join;
}
if ( empty( $this->having_terms ) ) {
return $join;
}
// Check to see that JOIN hasn't already been added. Props michaelingp and nbaxley
$term_relationship_join = " INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)";
$term_taxonomy_join = " INNER JOIN {$wpdb->term_taxonomy} ON ( {$wpdb->term_relationships}.term_taxonomy_id = {$wpdb->term_taxonomy}.term_taxonomy_id )";
if ( false === strpos( $join, trim( $term_relationship_join ) ) ) {
$join .= str_replace( 'INNER JOIN', 'LEFT JOIN', $term_relationship_join );
}
if ( false === strpos( $join, trim( $term_taxonomy_join ) ) ) {
$join .= str_replace( 'INNER JOIN', 'LEFT JOIN', $term_taxonomy_join );
}
}
return $join;
}
/**
* Modify the author query posts SQL to include posts co-authored
*/
function posts_where_filter( $where, $query ) {
global $wpdb;
if ( $query->is_author() ) {
if ( ! empty( $query->query_vars['post_type'] ) && ! is_object_in_taxonomy( $query->query_vars['post_type'], $this->coauthor_taxonomy ) ) {
return $where;
}
if ( $query->get( 'author_name' ) ) {
$author_name = sanitize_title( $query->get( 'author_name' ) );
} else {
$author_data = get_userdata( $query->get( 'author' ) );
if ( is_object( $author_data ) ) {
$author_name = $author_data->user_nicename;
} else {
return $where;
}
}
$terms = array();
$coauthor = $this->get_coauthor_by( 'user_nicename', $author_name );
if ( $author_term = $this->get_author_term( $coauthor ) ) {
$terms[] = $author_term;
}
// If this coauthor has a linked account, we also need to get posts with those terms
if ( ! empty( $coauthor->linked_account ) ) {
$linked_account = get_user_by( 'login', $coauthor->linked_account );
if ( $guest_author_term = $this->get_author_term( $linked_account ) ) {
$terms[] = $guest_author_term;
}
}
// Whether or not to include the original 'post_author' value in the query
// Don't include it if we're forcing guest authors, or it's obvious our query is for a guest author's posts
if ( $this->force_guest_authors || stripos( $where, '.post_author = 0)' ) ) {
$maybe_both = false;
} else {
$maybe_both = apply_filters( 'coauthors_plus_should_query_post_author', true );
}
$maybe_both_query = $maybe_both ? '$1 OR' : '';
if ( ! empty( $terms ) ) {
$terms_implode = '';
$this->having_terms = '';
foreach ( $terms as $term ) {
$terms_implode .= '(' . $wpdb->term_taxonomy . '.taxonomy = \''. $this->coauthor_taxonomy.'\' AND '. $wpdb->term_taxonomy .'.term_id = \''. $term->term_id .'\') OR ';
$this->having_terms .= ' ' . $wpdb->term_taxonomy .'.term_id = \''. $term->term_id .'\' OR ';
}
$terms_implode = rtrim( $terms_implode, ' OR' );
$this->having_terms = rtrim( $this->having_terms, ' OR' );
$where = preg_replace( '/(\b(?:' . $wpdb->posts . '\.)?post_author\s*=\s*(\d+))/', '(' . $maybe_both_query . ' ' . $terms_implode . ')', $where, -1 ); #' . $wpdb->postmeta . '.meta_id IS NOT NULL AND
}
}
return $where;
}
/**
* Modify the author query posts SQL to include posts co-authored
*/
function posts_groupby_filter( $groupby, $query ) {
global $wpdb;
if ( $query->is_author() ) {
if ( ! empty( $query->query_vars['post_type'] ) && ! is_object_in_taxonomy( $query->query_vars['post_type'], $this->coauthor_taxonomy ) ) {
return $groupby;
}
if ( $this->having_terms ) {
$having = 'MAX( IF ( ' . $wpdb->term_taxonomy . '.taxonomy = \''. $this->coauthor_taxonomy.'\', IF ( ' . $this->having_terms . ',2,1 ),0 ) ) <> 1 ';
$groupby = $wpdb->posts . '.ID HAVING ' . $having;
}
}
return $groupby;
}
/**
* Filters post data before saving to db to set post_author
*/
function coauthors_set_post_author_field( $data, $postarr ) {
// Bail on autosave
if ( defined( 'DOING_AUTOSAVE' ) && ! DOING_AUTOSAVE ) {
return $data;
}
// Bail on revisions
if ( ! $this->is_post_type_enabled( $data['post_type'] ) ) {
return $data;
}
// This action happens when a post is saved while editing a post
if ( isset( $_REQUEST['coauthors-nonce'] ) && isset( $_POST['coauthors'] ) && is_array( $_POST['coauthors'] ) ) {
$author = sanitize_text_field( $_POST['coauthors'][0] );
if ( $author ) {
$author_data = $this->get_coauthor_by( 'user_nicename', $author );
// If it's a guest author and has a linked account, store that information in post_author
// because it'll be the valid user ID
if ( 'guest-author' == $author_data->type && ! empty( $author_data->linked_account ) ) {
$data['post_author'] = get_user_by( 'login', $author_data->linked_account )->ID;
} else if ( 'wpuser' === $author_data->type ) {
$data['post_author'] = $author_data->ID;
}
}
}
// If for some reason we don't have the coauthors fields set
if ( ! isset( $data['post_author'] ) ) {
$user = wp_get_current_user();
$data['post_author'] = $user->ID;
}
// Allow the 'post_author' to be forced to generic user if it doesn't match any users on the post
$data['post_author'] = apply_filters( 'coauthors_post_author_value', $data['post_author'], $postarr['ID'] );
return $data;
}
/**
* Update a post's co-authors on the 'save_post' hook
*
* @param $post_ID
*/
function coauthors_update_post( $post_id, $post ) {
if ( defined( 'DOING_AUTOSAVE' ) && ! DOING_AUTOSAVE ) {
return;
}
if ( ! $this->is_post_type_enabled( $post->post_type ) ) {
return;
}
if ( $this->current_user_can_set_authors( $post ) ) {
// if current_user_can_set_authors and nonce valid
if ( isset( $_POST['coauthors-nonce'] ) && isset( $_POST['coauthors'] ) ) {
check_admin_referer( 'coauthors-edit', 'coauthors-nonce' );
$coauthors = (array) $_POST['coauthors'];
$coauthors = array_map( 'sanitize_text_field', $coauthors );
$this->add_coauthors( $post_id, $coauthors );
}
} else {
// If the user can't set authors and a co-author isn't currently set, we need to explicity set one
if ( ! $this->has_author_terms( $post_id ) ) {
$user = get_userdata( $post->post_author );
if ( $user ) {
$this->add_coauthors( $post_id, array( $user->user_login ) );
}
}
}
}
function has_author_terms( $post_id ) {
$terms = wp_get_object_terms( $post_id, $this->coauthor_taxonomy, array( 'fields' => 'ids' ) );
return ! empty( $terms ) && ! is_wp_error( $terms );
}
/**
* Add one or more co-authors as bylines for a post
*
* @param int
* @param array
* @param bool
*/
public function add_coauthors( $post_id, $coauthors, $append = false ) {
global $current_user, $wpdb;
$post_id = (int) $post_id;
$insert = false;
// Best way to persist order
if ( $append ) {
$existing_coauthors = wp_list_pluck( get_coauthors( $post_id ), 'user_login' );
} else {
$existing_coauthors = array();
}
// A co-author is always required
if ( empty( $coauthors ) ) {
$coauthors = array( $current_user->user_login );
}
// Set the coauthors
$coauthors = array_unique( array_merge( $existing_coauthors, $coauthors ) );
$coauthor_objects = array();
foreach ( $coauthors as &$author_name ) {
$author = $this->get_coauthor_by( 'user_nicename', $author_name );
$coauthor_objects[] = $author;
$term = $this->update_author_term( $author );
$author_name = $term->slug;
}
wp_set_post_terms( $post_id, $coauthors, $this->coauthor_taxonomy, false );
// If the original post_author is no longer assigned,
// update to the first WP_User $coauthor
$post_author_user = get_user_by( 'id', get_post( $post_id )->post_author );
if ( empty( $post_author_user )
|| ! in_array( $post_author_user->user_login, $coauthors ) ) {
foreach ( $coauthor_objects as $coauthor_object ) {
if ( 'wpuser' == $coauthor_object->type ) {
$new_author = $coauthor_object;
break;
}
}
// Uh oh, no WP_Users assigned to the post
if ( empty( $new_author ) ) {
return false;
}
$wpdb->update( $wpdb->posts, array( 'post_author' => $new_author->ID ), array( 'ID' => $post_id ) );
clean_post_cache( $post_id );
}
return true;
}
/**
* Action taken when user is deleted.
* - User term is removed from all associated posts
* - Option to specify alternate user in place for each post
* @param delete_id
*/
function delete_user_action( $delete_id ) {
global $wpdb;
$reassign_id = isset( $_POST['reassign_user'] ) ? absint( $_POST['reassign_user'] ) : false;
// If reassign posts, do that -- use coauthors_update_post
if ( $reassign_id ) {
// Get posts belonging to deleted author
$reassign_user = get_user_by( 'id', $reassign_id );
// Set to new author
if ( is_object( $reassign_user ) ) {
$post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d", $delete_id ) );
if ( $post_ids ) {
foreach ( $post_ids as $post_id ) {
$this->add_coauthors( $post_id, array( $reassign_user->user_login ), true );
}
}
}
}
$delete_user = get_user_by( 'id', $delete_id );
if ( is_object( $delete_user ) ) {
// Delete term
wp_delete_term( $delete_user->user_login, $this->coauthor_taxonomy );
}
}
/**
* Restrict WordPress from blowing away author order when bulk editing terms
*
* @since 2.6
* @props kingkool68, http://wordpress.org/support/topic/plugin-co-authors-plus-making-authors-sortable
*/
function filter_wp_get_object_terms( $terms, $object_ids, $taxonomies, $args ) {
if ( ! isset( $_REQUEST['bulk_edit'] ) || "'author'" !== $taxonomies ) {
return $terms;
}
global $wpdb;
$orderby = 'ORDER BY tr.term_order';
$order = 'ASC';
$object_ids = (int) $object_ids;
$query = $wpdb->prepare( "SELECT t.name, t.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN (%s) AND tr.object_id IN (%s) $orderby $order", $this->coauthor_taxonomy, $object_ids );
$raw_coauthors = $wpdb->get_results( $query );
$terms = array();
foreach ( $raw_coauthors as $author ) {
if ( true === is_array( $args ) && true === isset( $args['fields'] ) ) {
switch ( $args['fields'] ) {
case 'names' :
$terms[] = $author->name;
break;
case 'tt_ids' :
$terms[] = $author->term_taxonomy_id;
break;
case 'all' :
default :
$terms[] = get_term( $author->term_id, $this->coauthor_taxonomy );
break;
}
} else {
$terms[] = get_term( $author->term_id, $this->coauthor_taxonomy );
}
}
return $terms;
}
/**
* Filter the count_users_posts() core function to include our correct count
*/
function filter_count_user_posts( $count, $user_id ) {
$user = get_userdata( $user_id );
$user = $this->get_coauthor_by( 'user_nicename', $user->user_nicename );
$term = $this->get_author_term( $user );
// Only modify the count if the author already exists as a term
if ( $term && ! is_wp_error( $term ) ) {
$count = $term->count;
}
return $count;
}
/**
* Checks to see if the current user can set authors or not
*/
function current_user_can_set_authors( $post = null ) {
global $typenow;
if ( ! $post ) {
$post = get_post();
if ( ! $post ) {
return false;
}
}
$post_type = $post->post_type;
// TODO: need to fix this; shouldn't just say no if don't have post_type
if ( ! $post_type ) {
return false;
}
$post_type_object = get_post_type_object( $post_type );
$current_user = wp_get_current_user();
if ( ! $current_user ) {
return false;
}
// Super admins can do anything
if ( function_exists( 'is_super_admin' ) && is_super_admin() ) {
return true;
}
$can_set_authors = isset( $current_user->allcaps['edit_others_posts'] ) ? $current_user->allcaps['edit_others_posts'] : false;
return apply_filters( 'coauthors_plus_edit_authors', $can_set_authors );
}
/**
* Fix for author pages 404ing or not properly displaying on author pages
*
* If an author has no posts, we only want to force the queried object to be
* the author if they're a member of the blog.
*
* If the author does have posts, it doesn't matter that they're not an author.
*
* Alternatively, on an author archive, if the first story has coauthors and
* the first author is NOT the same as the author for the archive,
* the query_var is changed.
*
* Also, we have to do some hacky WP_Query modification for guest authors
*/
public function fix_author_page() {
if ( ! is_author() ) {
return;
}