Add Clear cache Button to Options Page

index-wp-redis.php

@@ -55,7 +55,7 @@ try {
     } else if ($redis->exists($redis_key)) {
 		$cache  = true;
         $html_of_page = $redis->get($redis_key);
-        echo $html_of_page;
+		echo $html_of_page;
         
      // If the cache does not exist lets display the user the normal page without cache, and then fetch a new cache page
     } else if ($_SERVER['REMOTE_ADDR'] != $ip_of_your_website && strstr($current_url, 'preview=true') == false) {
@@ -68,7 +68,7 @@ try {
             require('./wp-blog-header.php');
             $html_of_page = ob_get_contents();
             ob_end_clean();
-            echo $html_of_page;
+			echo $html_of_page;
 			
 			$unlimited			 =  get_option('wp-redis-cache-debug',false);
 			$seconds_cache_redis =  get_option('wp-redis-cache-seconds',43200);

wp-redis-cache/cache.php

 <?php
 
 add_action('transition_post_status', 'refresh_wp_redis_cache',10,3);
-
+add_action('wp_ajax_clear_wp_redis_cache', 'clear_wp_redis_cache');
+add_action( 'admin_footer', 'clear_wp_redis_cache_javascript' );
 //clears the cache after you update a post
 function refresh_wp_redis_cache( $new, $old, $post )
 {
 
-if($new == "publish")
-{
-$permalink = get_permalink( $post->ID );
+	if($new == "publish")
+	{
+		$permalink = get_permalink( $post->ID );
+
+		// aaronstpierre: this needs to be include_once so as not to cauase a redeclaration error
+		include_once("predis5.2.php");  //we need this to use Redis inside of PHP
+		$redis = new Predis_Client();
 
-// aaronstpierre: this needs to be include_once so as not to cauase a redeclaration error
-include_once("predis5.2.php");  //we need this to use Redis inside of PHP
-$redis = new Predis_Client();
+		$redis_key = md5($permalink);
+		$redis->del($redis_key);
+
+		//refresh the front page
+		$frontPage = get_home_url() . "/";
+		$redis_key = md5($frontPage);
+		$redis->del($redis_key);
+	}
+}
 
-$redis_key = md5($permalink);
-$redis->del($redis_key);
+// clears the whole cache
+function clear_wp_redis_cache()
+{
+	include_once("predis5.2.php"); //we need this to use Redis inside of PHP
+	$args = array( 'post_type' => 'any', 'posts_per_page' => -1);
+	$wp_query = new WP_Query( $args); // to get all Posts
+	$redis = new Predis_Client();
+	// Loop all posts and clear the cache
+	$i = 0;
+	while ( $wp_query->have_posts() ) : $wp_query->the_post();
+		$permalink = get_permalink();
 
-//refresh the front page
-$frontPage = get_home_url() . "/";
-$redis_key = md5($frontPage);
-$redis->del($redis_key);
+		$redis_key = md5($permalink);
+		if (($redis->exists($redis_key)) == true ) {
+			$redis->del($redis_key);
+			$i++; 
+		}
+		
+		
+	endwhile;
+	
+	echo $i++." of " . $wp_query  -> found_posts . " posts was cleared in cache"; 
+	die();
 }
+
+function clear_wp_redis_cache_javascript() {
+?>
+<script type="text/javascript" >
+jQuery(document).ready(function($) {
+
+	jQuery('#WPRedisClearCache').click(function(){
+		var data = {
+			action: 'clear_wp_redis_cache',
+		};
+
+		// since 2.8 ajaxurl is always defined in the admin header and points to admin-ajax.php
+		$.post(ajaxurl, data, function(response) {
+			alert(response);
+		});
+	});
+});
+</script>
+<?php 
 }
+?>
+

wp-redis-cache/options.php

@@ -143,7 +143,7 @@ function edit_redis_options() {
     <input type="checkbox" name="wp-redis-cache-unlimited" size="45" value="true" <?php checked('true', get_option('wp-redis-cache-unlimited')); ?>/></p>
 	  
     <p><input type="submit" name="Submit" value="Update Options" /></p>
-
+	<p><input type="button" id="WPRedisClearCache" name="WPRedisClearCache" value="Clear Cache"></p>
     <input type="hidden" name="action" value="update" />
     <input type="hidden" name="page_options" value="wp-redis-cache-seconds,wp-redis-cache-unlimited" />