Post Terms Command

gistfile1.txt

<?php

/**
 * Manage posts terms.
 *
 * @package wp-cli
 */
class Post_Terms_Command extends \WP_CLI\CommandWithDBObject {

    protected $obj_type = 'post terms for';

    public function __construct() {
        $this->fetcher = new \WP_CLI\Fetchers\Post;
    }

    /**
     * Get a terms of linked to a post.
     *
     * <id>...
     * : ID of posts
     *
     * [--taxonomy=<taxonomy>]
     * : Only show term for this taxonomy
     *
     * ## EXAMPLES
     *
     *     # save the post content to a file
     *     wp post terms list 12
     *
     * @subcommand list
     */
    public function list_( $args, $assoc_args ) {
        $post = $this->fetcher->get_check( $args[0] );

        if(isset($assoc_args['taxonomy'])){
            $this->taxonomy_exists($assoc_args['taxonomy']);

            $taxonomy_names = array($assoc_args['taxonomy']);
        }else{
            $taxonomy_names = get_object_taxonomies( $post->post_type );
        }

        if(empty($taxonomy_names)){
            WP_CLI::warning(__('No taxonomies found'));
            return;
        }

        $display = array();
        foreach($taxonomy_names as $taxonomy_name){
            $term_list = wp_get_post_terms($args[0], $taxonomy_name);
            foreach($term_list as $term){
                $display[] = (object) array('Term ID' => $term->term_id, 'Name' => $term->name, 'Slug' => $term->slug, 'Taxonomy' => $term->taxonomy);
            }
        }

        if(empty($display)){
            WP_CLI::warning(__('No terms found'));
            return;
        }

        $fields = array('Term ID', 'Name', 'Slug', 'Taxonomy' );
        \WP_CLI\Utils\format_items('table', $display, $fields);


    }

    /**
     * Add terms one or more posts.
     *
     * ## OPTIONS
     *
     * <id>...
     * : One or more IDs of posts to update.
     *
     *
     * --taxonomy=<taxonomy>
     * : One or more fields to update. See wp_update_post().
     *
     * --term=<term>
     * : One or more fields to update. See wp_update_post().
     *
     * ## EXAMPLES
     *
     *     wp post terms add 123 
     */
    public function add( $args, $assoc_args ) {

        $args = $this->processIds($args);

        parent::_update( $args, $assoc_args, function ( $params ) {

            $this->addterms($params['ID'], $params['term'],$params['taxonomy'], false);
        } );
    }
    /**
     * Update terms on one or more posts.
     *
     * ## OPTIONS
     *
     * <id>...
     * : One or more IDs of posts to update.
     *
     * --taxonomy=<taxonomy>
     * : One or more fields to update. See wp_update_post().
     *
     * --term=<term>
     * : One or more fields to update. See wp_update_post().
     *
     * ## EXAMPLES
     *
     *     wp post terms edit 123 
     */
    public function update( $args, $assoc_args ) {

        $args = $this->processIds($args);

        parent::_update( $args, $assoc_args, function ( $params ) {

            $this->addterms($params['ID'], $params['term'],$params['taxonomy'], true);
        } );
    }

    /**
     * Remove term from one or more posts.
     *
     * ## OPTIONS
     *
     * <id>...
     * : One or more IDs of posts to update.
     *
     * --taxonomy=<taxonomy>
     * : One or more fields to update. See wp_update_post().
     *
     * --term=<term>
     * : One or more fields to update. See wp_update_post().
     *
     * ## EXAMPLES
     *
     *     wp post terms delete 123 
     */
    public function delete( $args, $assoc_args ) {

        $args = $this->processIds($args);

        parent::_delete( $args, $assoc_args, function ( $id, $params ) {

            $r = wp_remove_object_terms(  $id, $params['term'],$params['taxonomy'] );

            return $this->wp_error_to_resp($r, sprintf(__('Removed the term %s from %s'),$params['term'],$id));
        } );
    }

    protected function processIds($args){
        foreach( $args as $key => $arg ) {
            if ( is_numeric( $arg ) ) {
                continue;
            }

            unset( $args[ $key ] );
            break;
        }
        return $args;
    }

    protected function addterms($post_id, $terms, $taxonomy, $append = true){
        $post = $this->fetcher->get_check( $post_id );
        return wp_set_object_terms( $post->ID, $terms, $taxonomy, $append );
    }

    protected function taxonomy_exists($taxonomy){
        if(!taxonomy_exists($taxonomy)){
            WP_CLI::error(__('Invalid taxonomy'));
        }
    }

}

WP_CLI::add_command( 'post terms', 'Post_Terms_Command' );