Adds year / month params to [google-calendar-events] shortcode

gce-updated-shortcode.php

//Handles the shortcode stuff
function shortcode_handler( $atts ) {
	$options = get_option( GCE_OPTIONS_NAME );

	//Check that any feeds have been added
	if ( is_array( $options ) && ! empty( $options ) ) {
		extract( shortcode_atts( array(
			'id' => '',
			'type' => 'grid',
			'title' => null,
			'max' => 0,
			'order' => 'asc',
			'year' => '',
			'month' => ''
		), $atts ) );

		$no_feeds_exist = true;
		$feed_ids = array();

		if ( '' != $id ) {
			//Break comma delimited list of feed ids into array
			$feed_ids = explode( ',', str_replace( ' ', '', $id ) );

			//Check each id is an integer, if not, remove it from the array
			foreach ( $feed_ids as $key => $feed_id ) {
				if ( 0 == absint( $feed_id ) )
					unset( $feed_ids[$key] );
			}

			//If at least one of the feed ids entered exists, set no_feeds_exist to false
			foreach ( $feed_ids as $feed_id ) {
				if ( isset($options[$feed_id] ) )
					$no_feeds_exist = false;
			}
		} else {
			foreach ( $options as $feed ) {
				$feed_ids[] = $feed['id'];
			}

			$no_feeds_exist = false;
		}

		//Ensure max events is a positive integer
		$max_events = absint( $max );

		//Ensure sort order is asc or desc
		$sort_order = ( 'desc' == $order ) ? 'desc' : 'asc';

		$y = ( '' == $year ) ? null : absint( $year );
		$m = ( '' == $month ) ? null : absint( $month );

		//Check that at least one valid feed id has been entered
		if ( empty( $feed_ids ) || $no_feeds_exist ) {
			return __( 'No valid Feed IDs have been entered for this shortcode. Please check that you have entered the IDs correctly and that the Feeds have not been deleted.', GCE_TEXT_DOMAIN );
		} else {
			//Turns feed_ids back into string of feed ids delimited by '-' ('1-2-3-4' for example)
			$feed_ids = implode( '-', $feed_ids );

			//If title has been omitted from shortcode, set title_text to null, otherwise set to title (even if empty string)
			$title_text = ( false === $title ) ? null : $title;

			switch ( $type ) {
				case 'grid':
					return gce_print_grid( $feed_ids, $title_text, $max_events, false, $m, $y );
				case 'ajax':
					return gce_print_grid( $feed_ids, $title_text, $max_events, true, $m, $y );
				case 'list':
					return gce_print_list( $feed_ids, $title_text, $max_events, $sort_order );
				case 'list-grouped':
					return gce_print_list( $feed_ids, $title_text, $max_events, $sort_order, true );
			}
		}
	} else {
		return __( 'No feeds have been added yet. You can add a feed in the Google Calendar Events settings.', GCE_TEXT_DOMAIN );
	}
}