Genesis Grid Loop - Parts 1-3

functions.php

<?php

add_action( 'genesis_before_loop', 'child_maybe_do_grid_loop' );
/**
 * Possibly amend the loop.
 *
 * Before we get to the loop, see if we're anywhere but a single page. If so,
 * swap out the standard loop for our grid loop.
 *
 * @author Gary Jones
 * @link   http://code.garyjones.co.uk/genesis-grid-loop-advanced/
 */
function child_maybe_do_grid_loop() {

	// Amend this conditional to pick where this grid looping occurs
	if ( ! is_single() && ! is_page() ) {
		// Remove the standard loop
		remove_action( 'genesis_loop', 'genesis_do_loop' );

		// Use the prepared grid loop
		add_action( 'genesis_loop', 'child_do_grid_loop' );

		// Add some extra post classes to the grid loop so we can style the columns
		add_filter( 'genesis_grid_loop_post_class', 'child_grid_loop_post_class' );
	}
}

/**
 * Prepare the grid loop.
 * 
 * Takes care of existing query arguments for the page e.g. if it's a category
 * archive page, then the "cat" argument is carried into the grid loop, unless
 * it's overwritten in the $grid_args.
 *  
 * @author Gary Jones
 * @link   http://code.garyjones.co.uk/genesis-grid-loop-advanced/
 *
 * @uses genesis_grid_loop() Requires Genesis 1.5
 */
function child_do_grid_loop() {

	global $query_string, $paged;

	// Ensure the arguments for the normal query for the page are carried forwards
	parse_str( $query_string, $query_args );

	// Create an array of arguments for the loop - can be grid-specific, or
	// normal query_posts() arguments to alter the loop
	$grid_args = array(
		'features'              => 1,
		'feature_image_size'    => 0,
		'feature_image_class'   => 'alignleft post-image',
		'feature_content_limit' => 0,
		'grid_image_size'       => 'grid-thumbnail',
		'grid_image_class'      => 'alignleft post-image',
		'grid_content_limit'    => 0,
		'more'                  => __( 'Continue reading &#x2192;', 'genesis' ),
		'posts_per_page'        => 6
	);

	// Make sure the first page has a balanced grid
	if ( 0 == $paged )
		// If first page, add number of features to grid posts, so balance is maintained
		$grid_args['posts_per_page'] += $grid_args['features'];
	else
		// Keep the offset maintained from our page 1 adjustment
		$grid_args['offset'] = ( $paged - 1 ) * $grid_args['posts_per_page'] + $grid_args['features'];

	// Merge the standard query for this page, and our preferred loop arguments
	genesis_grid_loop( array_merge( $query_args, $grid_args ) );

}

/**
 * Add some extra body classes to grid posts.
 * 
 * Change the $columns value to alter how many columns wide the grid uses.
 *
 * @author Gary Jones
 * @link   http://code.garyjones.co.uk/genesis-grid-loop-advanced/
 * 
 * @global array   $_genesis_loop_args
 * @global integer $loop_counter
 *
 * @param array $grid_classes 
 */
function child_grid_loop_post_class( $grid_classes ) {

	global $_genesis_loop_args, $loop_counter;

	// Alter this number to change the number of columns - used to add class names
	$columns = 3;

	// Only want extra classes on grid posts, not feature posts
	if ( $loop_counter >= $_genesis_loop_args['features'] ) {
		// Add genesis-grid-column-? class to know how many columns across we are
		$grid_classes[] = sprintf( 'genesis-grid-column-%s', ( ( $loop_counter - $_genesis_loop_args['features'] ) % $columns ) + 1 );

		// Add size1of? class to make it correct width
		$grid_classes[] = sprintf( 'size1of%s', $columns );
	}

	return $grid_classes;

}

Can i use this code in my genesis GENERATE Theme " Functions.php " file ??