// Load our function when hook is set
add_action( 'pre_get_posts', 'rc_modify_query_exclude_category' );
 
// Create a function to excplude some categories from the main query
function rc_modify_query_exclude_category( $query ) {
 
	// Check if on frontend and main query is modified
    if ( ! is_admin() && $query->is_main_query() && ! $query->get( 'cat' ) ) {
        $query->set( 'cat', '7' );
    } // end if
}

add_action( 'genesis_meta', 'foodie_home_genesis_meta' );
/**
 * Add widget support for home page.
 * If no widgets active, display the default loop.
 *
 * @since 1.0.1
 */
function foodie_home_genesis_meta() {
	if ( is_active_sidebar( 'home-top' ) || is_active_sidebar( 'home-middle' ) || is_active_sidebar( 'home-bottom' ) ) {
		// Remove the default Genesis loop.
		remove_action( 'genesis_loop', 'genesis_do_loop' );
		// Add a custom loop for the home page.
		add_action( 'genesis_loop', 'foodie_home_loop_helper' );
	}
}
/**
 * Display the home page widgeted sections.
 *
 * @since 1.0.0
 */
function foodie_home_loop_helper() {
	// Add the home top section if it has content.
	if ( is_active_sidebar( 'home-top' ) ) {
		genesis_widget_area( 'home-top', array(
			'before' => '<div class="widget-area home-top">',
			'after'  => '</div> <!-- end .home-top -->',
		) );
	}
	// Add the home middle section if it has content.
	if ( is_active_sidebar( 'home-middle' ) ) {
		genesis_widget_area( 'home-middle', array(
			'before' => '<div class="widget-area home-middle">',
			'after'  => '</div> <!-- end .home-middle -->',
		) );
	}
	// Add the home bottom section if it has content.
	if ( is_active_sidebar( 'home-bottom' ) ) {
		genesis_widget_area( 'home-bottom', array(
			'before' => '<div class="widget-area home-bottom">',
			'after'  => '</div> <!-- end .home-bottom -->',
		) );
	}
}

genesis();