post_parent ) {
/**
* Grab the IDs of all the image attachments in a gallery so we can get the
* URL of the next adjacent image in a gallery, or the first image (if
* we're looking at the last image in a gallery), or, in a gallery of one,
* just the link to that image file.
*/
$attachment_ids = get_posts( array(
'post_parent' => $post->post_parent,
'fields' => 'ids',
'numberposts' => 300,
'post_status' => 'inherit',
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => 'ASC',
'orderby' => 'menu_order ID'
) );
// If there is more than 1 attachment in a gallery...
if ( is_countable( $attachment_ids ) && count( $attachment_ids ) > 1 ) {
foreach ( $attachment_ids as $idx => $attachment_id ) {
if ( $attachment_id == $post->ID ) {
$next_id = $attachment_ids[ ( $idx + 1 ) % count( $attachment_ids ) ];
break;
}
}
// get the URL of the next image attachment...
if ( $next_id )
$next_attachment_url = get_attachment_link( $next_id );
// or get the URL of the first image attachment.
else
$next_attachment_url = get_attachment_link( array_shift( $attachment_ids ) );
}
}
printf( '%3$s',
esc_url( $next_attachment_url ),
the_title_attribute( array( 'echo' => false ) ),
wp_get_attachment_image( $post->ID, $attachment_size )
);
}
endif;
/**
* Return a time difference of a given time in
* days, hours or minutes depending on the time
* difference.
*
* @param $time (required)
*/
function eighties_get_time_difference( $time, $post = 'post' ) {
$current_time = new DateTime( current_time( 'mysql' ) );
$previous_time = new DateTime( $time );
$difference = $current_time->diff( $previous_time );
$timestamp = '';
if ( 0 < $difference->y ) {
/**
* If we've passed one year, let's show the full
* date.
*/
if ( $post === 'comment' ) {
$timestamp = get_comment_date( 'F j, Y' );
} else {
$timestamp = get_the_date( 'F j, Y' );
}
} else if ( 12 >= $difference->m && 1 <= $difference->m ) {
/**
* If we've made it here, we know that we have not
* yet passed one year, but have made it passed one
* month. As such, let's remove the year from the
* output, but keep the date style format.
*/
if ( $post === 'comment' ) {
$timestamp .= get_comment_date( 'F j' );
} else {
$timestamp .= get_the_date( 'F j' );
}
} else if ( 0 < $difference->d ) {
/**
* If we've made it here, we know that we have not
* yet passed one month, but have made it passed one
* day. As such, let's show just the number of days
* that have passed.
*/
$timestamp .= sprintf( _n( '%s Day Ago', '%s Days Ago', $difference->days, 'eighties' ), $difference->days );
} else if ( 0 < $difference->h ) {
/**
* If we've made it here, we know that we have not
* yet passed one day, but have made it passed one
* hour. As such, let's show just the number of hours
* that have passed.
*/
$timestamp .= sprintf( _n( '%s Hour Ago', '%s Hours Ago', $difference->h, 'eighties' ), $difference->h );
} else if ( 0 < $difference->i ) {
/**
* If we've made it here, we know that we have not
* yet passed one hour, but have made it passed one
* minute. As such, let's show just the number of
* minutes that have passed.
*/
$timestamp .= sprintf( _n( '%s Minute Ago', '%s Minutes Ago', $difference->i, 'eighties' ), $difference->i );
} else {
/**
* If we've made it here, that this post is fresh
* off the press. Let's show how fresh it is.
*/
$timestamp = __( 'Just now', 'eighties' );
}
return $timestamp;
}
if ( ! function_exists( 'eighties_posted_on' ) ) :
/**
* Prints HTML with meta information for the current post-date/time and author.
*/
function eighties_posted_on() {
/* Date */
$time_string = 'Posted on ';
printf( '' . $time_string . '',
esc_url( get_permalink() ),
esc_attr( eighties_get_time_difference( get_the_date( 'Y-m-d H:i:s' ) ) ),
esc_html( eighties_get_time_difference( get_the_date( 'Y-m-d H:i:s' ) ) )
);
/* Author */
printf( ' ' . __( 'by %2$s', 'eighties' ) . '',
esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
esc_html( get_the_author() )
);
}
endif;
/**
* Returns true if a blog has more than 1 category.
*
* @return bool
*/
function eighties_categorized_blog() {
if ( false === ( $all_the_cool_cats = get_transient( 'eighties_categories' ) ) ) {
// Create an array of all the categories that are attached to posts.
$all_the_cool_cats = get_categories( array(
'fields' => 'ids',
'hide_empty' => 1,
// We only need to know if there is more than one category.
'number' => 2,
) );
// Count the number of categories that are attached to the posts.
$all_the_cool_cats = is_countable( $all_the_cool_cats ) ? count( $all_the_cool_cats ) : 0;
set_transient( 'eighties_categories', $all_the_cool_cats );
}
if ( $all_the_cool_cats > 1 ) {
// This blog has more than 1 category so _s_categorized_blog should return true.
return true;
} else {
// This blog has only 1 category so _s_categorized_blog should return false.
return false;
}
}
/**
* Flush out the transients used in eighties_categorized_blog.
*/
function eighties_category_transient_flusher() {
// Like, beat it. Dig?
delete_transient( 'eighties_categories' );
}
add_action( 'edit_category', 'eighties_category_transient_flusher' );
add_action( 'save_post', 'eighties_category_transient_flusher' );
/**
* Check the content blob for an