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<?php |
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/** |
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* Zone Posts widget class |
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*/ |
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class Zoninator_ZonePosts_Widget extends WP_Widget { |
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|
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function Zoninator_ZonePosts_Widget() { |
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$widget_ops = array( 'classname' => 'widget-zone-posts', 'description' => __( 'Use this widget to display a list of posts from any zone.', 'zoninator' ) ); |
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$this->WP_Widget( 'widget-zone-posts', __( 'Zone Posts', 'zoninator' ), $widget_ops ); |
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$this->alt_option_name = 'widget_zone_posts'; |
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|
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add_action( 'save_post', array( &$this, 'flush_widget_cache' ) ); |
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add_action( 'deleted_post', array( &$this, 'flush_widget_cache' ) ); |
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add_action( 'switch_theme', array( &$this, 'flush_widget_cache' ) ); |
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} |
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|
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function widget( $args, $instance ) { |
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$cache = wp_cache_get( 'widget-zone-posts', 'widget' ); |
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|
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if ( !is_array( $cache ) ) |
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$cache = array(); |
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|
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if ( isset( $cache[$args['widget_id']] ) ) { |
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echo $cache[$args['widget_id']]; |
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return; |
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} |
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|
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ob_start(); |
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extract( $args ); |
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|
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$zone_id = $instance['zone_id'] ? $instance['zone_id'] : 0; |
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$show_description = $instance['show_description'] ? 1 : 0; |
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|
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if( ! $zone_id ) |
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return; |
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|
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$zone = z_get_zone( $zone_id ); |
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|
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if( ! $zone ) |
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return; |
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|
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$posts = z_get_posts_in_zone( $zone_id ); |
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|
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if( empty( $posts ) ) |
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return; |
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|
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?> |
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<?php echo $before_widget; ?> |
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|
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<?php echo $before_title . esc_html( $zone->name ) . $after_title; ?> |
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|
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<?php if( ! empty( $zone->description ) && $show_description ) : ?> |
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<p class="description"><?php echo esc_html( $zone->description ); ?></p> |
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<?php endif; ?> |
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|
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<ul> |
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<?php foreach( $posts as $post ) : ?> |
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<li> |
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<a href="<?php echo get_permalink( $post->ID ); ?>"> |
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<?php echo esc_html( get_the_title( $post->ID ) ); ?> |
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</a> |
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</li> |
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<?php endforeach; ?> |
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</ul> |
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|
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<?php echo $after_widget; ?> |
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<?php |
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$cache[$args['widget_id']] = ob_get_flush(); |
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wp_cache_set( 'widget-zone-posts', $cache, 'widget' ); |
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} |
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|
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function update( $new_instance, $old_instance ) { |
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$instance = $old_instance; |
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$new_instance = wp_parse_args( (array) $new_instance, array( 'zone_id' => 0, 'show_description' => 0 ) ); |
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|
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$instance['zone_id'] = absint( $new_instance['zone_id'] ); |
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$instance['show_description'] = $new_instance['show_description'] ? 1 : 0; |
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|
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$this->flush_widget_cache(); |
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|
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$alloptions = wp_cache_get( 'alloptions', 'options' ); |
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if ( isset($alloptions['widget-zone-posts']) ) |
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delete_option( 'widget-zone-posts' ); |
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|
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return $instance; |
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} |
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|
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function flush_widget_cache() { |
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wp_cache_delete( 'widget-zone-posts', 'widget' ); |
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} |
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|
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function form( $instance ) { |
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// select - zone |
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// checkbox - show description |
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|
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$zones = z_get_zones(); |
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|
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if( empty( $zones ) ) { |
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_e( 'You need to create at least one zone before you use this widget!', 'zoninator' ); |
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return; |
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} |
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|
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$zone_id = isset( $instance['zone_id'] ) ? absint( $instance['zone_id'] ) : 0; |
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$show_description = isset( $instance['show_description'] ) ? (bool)$instance['show_description'] : true; |
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?> |
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|
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<p> |
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<label for="<?php echo $this->get_field_id( 'zone_id' ); ?>"><?php _e('Zone:'); ?></label> |
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<select class="widefat" id="<?php echo $this->get_field_id( 'zone_id' ); ?>" name="<?php echo $this->get_field_name( 'zone_id' ); ?>"> |
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<option value="0" <?php selected( $zone_id, 0 ); ?>> |
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<?php _e( '-- Select a zone --', 'zoninator' ); ?> |
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</option> |
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|
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<?php foreach( $zones as $zone ) : ?> |
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<option value="<?php echo $zone->term_id; ?>" <?php selected( $zone_id, $zone->term_id ); ?>> |
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<?php echo esc_html( $zone->name ); ?> |
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</option> |
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<?php endforeach; ?> |
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</select> |
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</p> |
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|
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<p> |
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<label for="<?php echo $this->get_field_id( 'show_description' ); ?>"> |
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<input id="<?php echo $this->get_field_id( 'show_description' ); ?>" name="<?php echo $this->get_field_name( 'show_description' ); ?>" <?php checked( true, $show_description ); ?> type="checkbox" value="1" /> |
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<?php _e( 'Show zone description in widget', 'zoninator' ); ?> |
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</label> |
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</p> |
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<?php |
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} |
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} |
