archives.plugin.php that takes into account the current post maybe

archives.plugin.php

<?php

class MonthlyArchives extends Plugin
{
	private $config = array();
	private $class_name = '';
	private $cache = array();
	private $default_options = array (
		'display_month' => 'F',
		'show_count' => 'Y',
		'delimiter' => ''
		);

	// Set the default options
	public function action_plugin_activation( $file )
	{
		if ( realpath( $file ) == __FILE__ ) {
			$this->class_name = strtolower( get_class( $this ) );
			$this->cache_name = Site::get_url( 'host' ) . ':' . $this->class_name;
			foreach ( $this->default_options as $name => $value ) {
				$current_value = Options::get( $this->class_name . '__' . $name );
				if ( !isset( $current_value) ) {
					Options::set( $this->class_name . '__' . $name, $value );
				}
			}
		}
	}

	public function action_plugin_deactivation( $file )
	{
		if ( realpath( $file ) == __FILE__ ) {
			Cache::expire( $this->cache_name );
		}
	}

	public function action_init()
	{
		$this->class_name = strtolower( get_class( $this ) );
		$this->cache_name = Site::get_url( 'host' ) . ':' . $this->class_name;
		foreach ( $this->default_options as $name => $unused ) {
			$this->config[$name] = Options::get( $this->class_name . '__' . $name );
		}
	}

	public function filter_plugin_config( $actions, $plugin_id )
	{
		if ( $plugin_id == $this->plugin_id() ) {
			$actions[] = _t( 'Configure' );
			$actions[] = _t( 'Clear Cache' );
		}
		return $actions;
	}

	public function action_plugin_ui( $plugin_id, $action )
	{
		if ( $plugin_id == $this->plugin_id() ) {
			switch ( $action ) {
				case _t( 'Configure' ):
					$ui = new FormUI( $this->class_name );

					$display_month = $ui->append( 'select', 'display_month', 'option:' . $this->class_name . '__display_month', _t( 'Month displayed as' ) );

					$display_month->options = array( '' => '', 'F' => 'Full name', 'A' => 'Abbreviation', 'N' => 'Number' );

					$show_count = $ui->append( 'select', 'show_count', 'option:' . $this->class_name . '__show_count', _t( 'Show Monthly Entries Count?' ) );
					$show_count->options = array( '' => '', 'Y' => 'Yes', 'N' => 'No' );
					$show_count->add_validator( 'validate_required' );

					$delimiter = $ui->append( 'text', 'delimiter', 'option:' . $this->class_name . '__delimiter', _t( 'Delimiter to separate day and post title in detail view (optional)' ) );

					$ui->append( 'submit', 'save', _t( 'Save' ) );
					$ui->set_option( 'success_message', _t( 'Configuration saved' ) );

					$ui->on_success( array( $this, 'updated_config' ) );
					$ui->out();
					break;
				case _t( 'Clear Cache' ):
					Cache::expire( $this->cache_name );
					echo '<p>' . _t( 'Cache has been cleared.' ) . '</p>';
					break;
			}
		}
	}

	public function updated_config( $ui )
	{
		$ui->save();
		Cache::expire( $this->cache_name );
		return false;
	}

	public function theme_monthly_archives( $theme, $num_month = 0, $detail_view = 'Y' )
	{
		if ( array_key_exists( $num_month, $this->cache ) ) {
			if ( Cache::has( $this->cache[$num_month] ) ) {
				$monthly_archives = Cache::get( $this->cache[$num_month] );
			}
			else {
				$monthly_archives = $this->get_monthly_archives( $num_month, $detail_view, $theme );
				Cache::set( $this->cache[$num_month], $monthly_archives );
			}
		}
		else {
			$monthly_archives = $this->get_monthly_archives( $num_month, $detail_view, $theme );
			$this->cache[$num_month] = Site::get_url( 'host' ) . ':' . $this->class_name . ':' . $num_month;
			Cache::set( $this->cache[$num_month], $monthly_archives );
		}

		return $monthly_archives;
	}

	public function action_post_update_status( $post, $old_value, $new_value )
	{
		if ( ( Post::status_name( $old_value ) == 'published' && Post::status_name( $new_value ) != 'published' ) ||
			  ( Post::status_name( $old_value ) != 'published' && Post::status_name( $new_value ) == 'published' ) ) {
			Cache::expire( $this->cache_name );
		}
	}

	public function action_post_update_slug( $post, $old_value, $new_value )
	{
		if ( Post::status_name( $post->status ) == 'published' ) {
			Cache::expire( $this->cache_name );
		}
	}

	public function action_post_update_title( $post, $old_value, $new_value )
	{
		if ( Post::status_name( $post->status ) == 'published' ) {
			Cache::expire( $this->cache_name );
		}
	}

	public function action_post_delete_after( $post )
	{
		if ( Post::status_name( $post->status ) == 'published' ) {
			Cache::expire( $this->cache_name );
		}
	}

	private function get_monthly_archives( $num_month, $detail_view, $theme = null )
	{
		$post_type = Post::type( 'entry' );
		$post_status = Post::status( 'published' );
		$monthly_archives = '';

		$limit = ( empty( $num_month ) ? '' : "LIMIT {$num_month}" );
		$sql = "
			SELECT YEAR(FROM_UNIXTIME(pubdate)) AS year, MONTH(FROM_UNIXTIME(pubdate)) AS month,
			COUNT(p.id) AS cnt
			FROM {posts} p
			WHERE p.content_type = {$post_type}
			AND p.status = {$post_status}
			GROUP BY year, month
			ORDER BY year DESC, month DESC
			{$limit}";
		$yr_mths = DB::get_results( $sql );

		$monthly_archives .= "<ul class=\"archive-month\">\n";
		foreach ( $yr_mths as $yr_mth ) {
			$display_month = "";
			$month = substr( '0' . $yr_mth->month, -2, 2 );
			switch ( $this->config['display_month'] ) {
				case 'F': // Full name
					$display_month = date( 'F', mktime( 0, 0, 0, $yr_mth->month, 1) );
					break;
				case 'A': // Abbreviation
					$display_month = date( 'M', mktime( 0, 0, 0, $yr_mth->month, 1) );
					break;
				case 'N': // Number
					$display_month = $month;
					break;
			}
			$monthly_archives .= '<li><a href="' . URL::get( 'display_entries_by_date', array( 'year' => $yr_mth->year, 'month' => $month ) ) . '" title="View entries in ' . "{$display_month} {$yr_mth->year}". '">' . "{$display_month} {$yr_mth->year}</a>";
			if ( 'Y' == $this->config['show_count'] ) {
				$monthly_archives .= " ({$yr_mth->cnt})";
			}

			if ( 'N' == strtoupper( $detail_view ) ) {
				$monthly_archives .= "</li>\n";
			}
			elseif ( 'Y' == strtoupper( $detail_view ) ) {
				// Show post title as well
				$posts = Posts::get( array(
					'content_type' => $post_type,
					'status' => $post_status,
					'year' => $yr_mth->year,
					'month' => $yr_mth->month,
					'nolimit' => 1,
					) );
				if ( $posts ) {
					$monthly_archives .= "\n<ul class=\"archive-entry\">\n";
					foreach ( $posts as $post ) {
						$day = $post->pubdate->format( 'd' );

						if(isset($theme) && isset($theme->post) && $theme->post->id == $post->id && $theme->request->display_post) { 
							$monthly_archives .= "<li class=\"bold\">{$day}";
							$monthly_archives .= ( empty( $this->config['delimiter'] ) ? "&nbsp;&nbsp;" : htmlspecialchars( $this->config['delimiter'] ) );
							$monthly_archives .= "{$post->title}</li>\n";
						}
						else {
							$monthly_archives .= "<li>{$day}";
							$monthly_archives .= ( empty( $this->config['delimiter'] ) ? "&nbsp;&nbsp;" : htmlspecialchars( $this->config['delimiter'] ) );
							$monthly_archives .= "<a href=\"{$post->permalink}\">{$post->title}</a></li>\n";
						}
					}
					$monthly_archives .= "</ul>\n";
				}
				$monthly_archives .= "</li>\n";
			}
		}
		$monthly_archives .= "</ul>\n";

		return $monthly_archives;
	}
}
?>