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presto's Issues

Feature Add – is_subpage() function

could be good to add this into the core functionality – your call.

/**
* Is SubPage?
*
* Checks if the current page is a sub-page and returns true or false.
*
* @param  $page mixed optional ( post_name or ID ) to check against.
* @return boolean
* 
*/

function is_subpage( $page = null )
{
    global $post;
    // is this even a page?
    if ( ! is_page() )
        return false;
    // does it have a parent?
    if ( ! isset( $post->post_parent ) OR $post->post_parent <= 0 )
        return false;
    // is there something to check against?
    if ( ! isset( $page ) ) {
        // yup this is a sub-page
        return true;
    } else {
        // if $page is an integer then its a simple check
        if ( is_int( $page ) ) {
            // check
            if ( $post->post_parent == $page )
                return true;
        } else if ( is_string( $page ) ) {
            // get ancestors
            $parent = get_ancestors( $post->ID, 'page' );
            // does it have ancestors?
            if ( empty( $parent ) )
                return false;
            // get the first ancestor
            $parent = get_post( $parent[0] );
            // compare the post_name
            if ( $parent->post_name == $page )
                return true;
        }
        return false;
    }
}

Simple Widgets issue

Not functioning correctly. See also need to wrap the foreach in a conditional.

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