CaffGeek/MBACNationals

<?php
/**
 * Post format functions.
 *
 * @package WordPress
 * @subpackage Post
 */

/**
 * Retrieve the format slug for a post
 *
 * @since 3.1.0
 *
 * @param int|object $post Post ID or post object. Optional, default is the current post from the loop.
 * @return mixed The format if successful. False otherwise.
 */
function get_post_format( $post = null ) {
    if ( ! $post = get_post( $post ) )
        return false;

    if ( ! post_type_supports( $post->post_type, 'post-formats' ) )
        return false;

    $_format = get_the_terms( $post->ID, 'post_format' );

    if ( empty( $_format ) )
        return false;

    $format = array_shift( $_format );

    return str_replace('post-format-', '', $format->slug );
}

/**
 * Check if a post has any of the given formats, or any format.
 *
 * @since 3.1.0
 *
 * @uses has_term()
 *
 * @param string|array $format Optional. The format or formats to check.
 * @param object|int $post Optional. The post to check. If not supplied, defaults to the current post if used in the loop.
 * @return bool True if the post has any of the given formats (or any format, if no format specified), false otherwise.
 */
function has_post_format( $format = array(), $post = null ) {
    $prefixed = array();

    if ( $format ) {
        foreach ( (array) $format as $single ) {
            $prefixed[] = 'post-format-' . sanitize_key( $single );
        }
    }

    return has_term( $prefixed, 'post_format', $post );
}

/**
 * Assign a format to a post
 *
 * @since 3.1.0
 *
 * @param int|object $post The post for which to assign a format.
 * @param string $format A format to assign. Use an empty string or array to remove all formats from the post.
 * @return mixed WP_Error on error. Array of affected term IDs on success.
 */
function set_post_format( $post, $format ) {
    $post = get_post( $post );

    if ( empty( $post ) )
        return new WP_Error( 'invalid_post', __( 'Invalid post' ) );

    if ( ! empty( $format ) ) {
        $format = sanitize_key( $format );
        if ( 'standard' === $format || ! in_array( $format, get_post_format_slugs() ) )
            $format = '';
        else
            $format = 'post-format-' . $format;
    }

    return wp_set_post_terms( $post->ID, $format, 'post_format' );
}

/**
 * Returns an array of post format slugs to their translated and pretty display versions
 *
 * @since 3.1.0
 *
 * @return array The array of translated post format names.
 */
function get_post_format_strings() {
    $strings = array(
        'standard' => _x( 'Standard', 'Post format' ), // Special case. any value that evals to false will be considered standard
        'aside'    => _x( 'Aside',    'Post format' ),
        'chat'     => _x( 'Chat',     'Post format' ),
        'gallery'  => _x( 'Gallery',  'Post format' ),
        'link'     => _x( 'Link',     'Post format' ),
        'image'    => _x( 'Image',    'Post format' ),
        'quote'    => _x( 'Quote',    'Post format' ),
        'status'   => _x( 'Status',   'Post format' ),
        'video'    => _x( 'Video',    'Post format' ),
        'audio'    => _x( 'Audio',    'Post format' ),
    );
    return $strings;
}

/**
 * Retrieves an array of post format slugs.
 *
 * @since 3.1.0
 *
 * @uses get_post_format_strings()
 *
 * @return array The array of post format slugs.
 */
function get_post_format_slugs() {
    $slugs = array_keys( get_post_format_strings() );
    return array_combine( $slugs, $slugs );
}

/**
 * Returns a pretty, translated version of a post format slug
 *
 * @since 3.1.0
 *
 * @uses get_post_format_strings()
 *
 * @param string $slug A post format slug.
 * @return string The translated post format name.
 */
function get_post_format_string( $slug ) {
    $strings = get_post_format_strings();
    if ( !$slug )
        return $strings['standard'];
    else
        return ( isset( $strings[$slug] ) ) ? $strings[$slug] : '';
}

/**
 * Returns a link to a post format index.
 *
 * @since 3.1.0
 *
 * @param string $format The post format slug.
 * @return string The post format term link.
 */
function get_post_format_link( $format ) {
    $term = get_term_by('slug', 'post-format-' . $format, 'post_format' );
    if ( ! $term || is_wp_error( $term ) )
        return false;
    return get_term_link( $term );
}

/**
 * Filters the request to allow for the format prefix.
 *
 * @access private
 * @since 3.1.0
 */
function _post_format_request( $qvs ) {
    if ( ! isset( $qvs['post_format'] ) )
        return $qvs;
    $slugs = get_post_format_slugs();
    if ( isset( $slugs[ $qvs['post_format'] ] ) )
        $qvs['post_format'] = 'post-format-' . $slugs[ $qvs['post_format'] ];
    $tax = get_taxonomy( 'post_format' );
    if ( ! is_admin() )
        $qvs['post_type'] = $tax->object_type;
    return $qvs;
}
add_filter( 'request', '_post_format_request' );

/**
 * Filters the post format term link to remove the format prefix.
 *
 * @access private
 * @since 3.1.0
 */
function _post_format_link( $link, $term, $taxonomy ) {
    global $wp_rewrite;
    if ( 'post_format' != $taxonomy )
        return $link;
    if ( $wp_rewrite->get_extra_permastruct( $taxonomy ) ) {
        return str_replace( "/{$term->slug}", '/' . str_replace( 'post-format-', '', $term->slug ), $link );
    } else {
        $link = remove_query_arg( 'post_format', $link );
        return add_query_arg( 'post_format', str_replace( 'post-format-', '', $term->slug ), $link );
    }
}
add_filter( 'term_link', '_post_format_link', 10, 3 );

/**
 * Remove the post format prefix from the name property of the term object created by get_term().
 *
 * @access private
 * @since 3.1.0
 */
function _post_format_get_term( $term ) {
    if ( isset( $term->slug ) ) {
        $term->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
    }
    return $term;
}
add_filter( 'get_post_format', '_post_format_get_term' );

/**
 * Remove the post format prefix from the name property of the term objects created by get_terms().
 *
 * @access private
 * @since 3.1.0
 */
function _post_format_get_terms( $terms, $taxonomies, $args ) {
    if ( in_array( 'post_format', (array) $taxonomies ) ) {
        if ( isset( $args['fields'] ) && 'names' == $args['fields'] ) {
            foreach( $terms as $order => $name ) {
                $terms[$order] = get_post_format_string( str_replace( 'post-format-', '', $name ) );
            }
        } else {
            foreach ( (array) $terms as $order => $term ) {
                if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) {
                    $terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
                }
            }
        }
    }
    return $terms;
}
add_filter( 'get_terms', '_post_format_get_terms', 10, 3 );

/**
 * Remove the post format prefix from the name property of the term objects created by wp_get_object_terms().
 *
 * @access private
 * @since 3.1.0
 */
function _post_format_wp_get_object_terms( $terms ) {
    foreach ( (array) $terms as $order => $term ) {
        if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) {
            $terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
        }
    }
    return $terms;
}
add_filter( 'wp_get_object_terms', '_post_format_wp_get_object_terms' );