Igor's Blog
Programming, DIY, Games, Hacks, and Tech

FlatPress has a great plugin called PostViews that counts the number of times a blog post has been viewed. One of the issues I had with this plugin is it stopped tracking the number of views when I turned on HTML caching at my CloudFlare front end. Naturally the HTML was cached for most requests and therefore the plugin was never executed. The solution to this was to use a tracking pixel and set CloudFlare to disable caching on the tracking pixel itself so that I could capture each of the views.

These are my changes to the plugin...

First I've replaced the PHP content of the plugin.postviews.php file with this (update the comments at the top of the file as you wish)...
 plugin.postviews.php
add_action('entry_block', 'plugin_postviews_do');
add_filter('the_content', 'plugin_postviews_track', -1);
function plugin_postviews_calc($id, $calc) {
$dir = entry_dir($id);
if (!$dir) return;
$f = $dir . '/view_counter' .EXT;
$v = io_load_file($f);
if ($v===false){
$v = 0;
}
return $v;
}
function plugin_postviews_do($id) {
global $fpdb, $smarty;
$q = $fpdb->getQuery();
$calc = $q->single;
$v = plugin_postviews_calc($id, $calc);
$smarty->assign('views', $v);
}
function plugin_postviews_track($content) {
global $smarty;
$id = $smarty->get_template_vars('id');
return $content .
'<img src="/'.PLUGINS_DIR.'postviews/v.php?v='.$id.'" width="1" height="1"/>';
}




The main changes are to add a content filter to the plugin. This filter, implemented in the plugin_postviews_track method, simply gets the ID of the current post and returns the content with the tracking pixel code attached.

The actual tracking work happens in the v.php file. This file should be in the same directory as the plugin.postviews.php file. It looks like this...
 v.php
<?php
chdir(__DIR__ . '/../..'); // simulate working from blog root
require_once('defaults.php');
require_once(INCLUDES_DIR.'includes.php');
if (function_exists('system_init')) {
system_init();
}
else {
plugin_loadall();
}
if (isset($_GET['v'])) {
$id = $_GET['v'];
$calc = true;
// make sure we have a valid ID
if (strlen($id) == 18) {
$dir = entry_dir($id);
if (!$dir) return;
$f = $dir . '/view_counter' .EXT;
$v = io_load_file($f);
if ($v===false){
$v = 0;
}
elseif ($v < 0) {
$v = 0;
$calc = false;
}
if ($calc && !user_loggedin()) {
$v++;
io_write_file($f, $v);
}
// output 1x1 transparent tracking pixel
header("Content-type: image/gif");
header("Content-Length: 42");
header("Cache-Control: private, no-cache, no-cache=Set-Cookie, proxy-revalidate");
header("Expires: Wed, 11 Jan 2000 12:59:00 GMT");
header("Pragma: no-cache");
echo base64_decode('R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEA');
}
}
?>



What that does is load/increment the number of views for the blog post identified by its ID. The output of the script is a 1x1 transparent pixel, also knows as a tracking pixel, which is how we are able to use this script as the source to the img tag in the previous source file.

What you'll find with this change is it tracks the real 'user' views better. Since bots usually don't load things like images the view counter will not include bot requests.

-i

Please leave your comments or feedback below!
comments powered by Disqus
Other posts you may like...

Recent Blog Posts

How to enable the full stack trace in Maven's Surefire plugin for JUnit testing

Twelve elements of the Burst Mining Pool interface explained

TPG FTTB settings for the Billion BiPAC 8700AXL 1600 modem router

Protecting old Atari Lynx game boxes with snug fit plastic sleeves

How to fix SoapUI javax.net.ssl.SSLHandshakeException calling WebLogic 12.2 web services on Java 8

Woolworths (WOW) shares disappeared from Computer Share Investor Centre

Connecting the Dell UltraSharp U3415W monitor to a MacBookPro via USB-C

How to add/change PHP versions appearing in MAMP preferences

Fix the ORA-00904: ORA_ROWSCN: invalid identifier error in SQLDeveloper with a few easy steps

G Suite Gmail is broken on Safari due to new Google Content Security Policy settings

Recent Galleries

Protecting old Atari Lynx game boxes with snug fit plastic sleeves

Monument Valley 2 is released and does not disappoint

Space Food - Chocolate Ice Cream with Chocolate Chips

Legeod Star Wars AT-DP kit

DIY spare parts computer build with a RAIDMAX Anura case

Fake 'Lepin' brand Lego packaging

Hardwood garden bench with clear resin void filler

Fixing a 3D printer extruder that stopped heating up

Easily increase disk space in a Lenovo Ideapad 100S 14" laptop with an M.2 SSD

Making a multi-piece 3D printed solder spool holder stand

My Other Web Sites

Igor and Elise's Travels
Riverside Expressway Cam
300 George St Blogumentary

My Online Tools

UUID to OID Converter
Guru JSON-RPC Tester
Extrudifier Object Designer
Travel ┬ÁBlog

Blogs and Friends

Matt Moores Blog
Georgi's FlatPress Guide
Perplexing Permutations
The Security Sleuth
Ilia Rogatchevski
Travelling Fairy

Blog Activity

Blog Activity
Don't forget to
my Facebook page for more great articles!
Don't show this again