MediaWiki:Gadget-Global-TopLinkedPages.js

/**
 * This gadget creates a table of the most visited pages linked from a given page
 */
const TopLinkedPages = {

	init: function () {
		$( '.TopLinkedPages' ).each( TopLinkedPages.getPages );
	},

	getPages: function () {
		const $div = $( this );
		const page = $div.data( 'page' ) || mw.config.get( 'wgPageName' );
		const days = $div.data( 'days' ) || 30;
		const params = {
			action: 'query',
			titles: page,
			prop: 'pageviews',
			pvipdays: days,
			generator: 'links',
			gpllimit: 'max',
			redirects: true,
			formatversion: 2
		};
		const pages = [];
		new mw.Api().get( params ).done( response => TopLinkedPages.getPagesContinue( response, params, pages, $div ) );
	},

	getPagesContinue: function ( response, params, pages, $div ) {
		for ( const page of response.query.pages ) {
			if ( !page.missing && page.pageviews && !pages.some( element => element.title === page.title ) ) {
				const views = Object.values( page.pageviews ).reduce( ( a, b ) => a + b, 0 );
				pages.push( { title: page.title, views: views } );
			}
		}
		if ( response.continue ) {
			const cont = response.continue.continue.split( '|' )[ 0 ];
			params[ cont ] = response.continue[ cont ];
			new mw.Api().get( params ).done( response => TopLinkedPages.getPagesContinue( response, params, pages, $div ) );
		} else {
			TopLinkedPages.makeTable( pages, $div );
		}
	},

	makeTable: function ( pages, $div ) {

		// Sort the pages by pageview count
		pages.sort( ( a, b ) => b.views - a.views );

		// Trim the results
		const limit = $div.data( 'limit' ) || 10;
		const top = pages.slice( 0, limit );

		// Make the table
		const pageHeader = $div.data( 'page-header' ) || 'Page';
		const viewsHeader = $div.data( 'views-header' ) || 'Views';
		const $th1 = $( '<th></th>' ).text( pageHeader );
		const $th2 = $( '<th></th>' ).text( viewsHeader );
		const $thr = $( '<tr></tr>' ).append( $th1, $th2 );
		const $table = $( '<table class="wikitable"></table>' ).append( $thr );
		for ( const page of top ) {
			const url = mw.util.getUrl( page.title );
			const $link = $( '<a href="' + url + '">' + page.title + '</a>' );
			const $td1 = $( '<td></td>' ).html( $link );
			const $td2 = $( '<td></td>' ).text( page.views );
			const $tdr = $( '<tr></tr>' ).append( $td1, $td2 );
			$table.append( $tdr );
		}

		// Add it to the DOM
		$div.html( $table );
	}
};

$( TopLinkedPages.init );