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Knowledgebase Attachments Widget

class KnowledgeBase_Attachments_Widget extends WP_Widget {

	public function __construct() {

		parent::__construct(
			'knowledgebase_attachments_widget',
			__( 'Knowledge Base Attachments Widget', 'digital workboots' ),
			array(
				'description' => __( 'Lists article attachments', 'digital workboots' ),
				'classname'   => 'widget_knowledgebase_attachments',
			)
		);

	}

	public function widget( $args, $instance ) {

		$title = apply_filters( 'widget_title', empty( $instance['generatewp_title'] ) ? '' : $instance['generatewp_title'], $instance, $this->id_base );
		
		// Before widget tag
		echo $args['before_widget'];
		
		// Title
		if ( ! empty( $title ) ) {
			echo $args['before_title'] . $title . $args['after_title'];
		}
		
		
		MinervaKB_ContentHooks::single_extra_attachments();
		
		// After widget tag
		echo $args['after_widget'];

	}

	public function form( $instance ) {

		// Set default values
		$instance = wp_parse_args( (array) $instance, array( 
			'dw_title' => '',
		) );

		// Retrieve an existing value from the database
		$dw_title = !empty( $instance['dw_title'] ) ? $instance['dw_title'] : '';

		// Form fields
		echo '<p>';
		echo '	<label for="' . $this->get_field_id( 'dw_title' ) . '" class="dw_title_label">' . __( 'Title', 'digital workboots' ) . '</label>';
		echo '	<input type="text" id="' . $this->get_field_id( 'dw_title' ) . '" name="' . $this->get_field_name( 'dw_title' ) . '" class="widefat" placeholder="' . esc_attr__( '', 'digital workboots' ) . '" value="' . esc_attr( $dw_title ) . '">';
		echo '</p>';

	}

	public function update( $new_instance, $old_instance ) {

		$instance = $old_instance;

		$instance['dw_title'] = !empty( $new_instance['dw_title'] ) ? strip_tags( $new_instance['dw_title'] ) : '';

		return $instance;

	}

}

function dw_register_widgets() {
	register_widget( 'KnowledgeBase_Attachments_Widget' );
}
add_action( 'widgets_init', 'dw_register_widgets' );