Initial Commit of v1.0.0

Compatible with PyroCMS 2.x

README

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+# PyroCMS Related Posts Plugin
+
+The PyroCMS Related Posts plugin allows you to show a list of blog post headlines that use specified keywords. 
+
+The idea behind this is that you can effortlessly add a small lex-based line of code to your pages to show posts that are tagged with related keywords.
+
+So for example, if you wanted to show the 5 latest posts that use the keywords "news" and "technology", you would do this:
+
+{{ related_posts:posts keywords="news,technology" maximum_posts="5" maximum_length="100" }}
+

related_posts.php

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+<?php defined('BASEPATH') OR exit('No direct script access allowed');
+/**
+ * Related Posts
+ *
+ * Fetches posts that are tagged with keyword(s) specified.
+ *
+ * @package		PyroCMS
+ * @author		Rick Mills (WDWFans.com) <rick.sketchy@gmail.com>
+ * @copyright	Copyright (c) 2012 Rick Mills
+ *
+ */
+
+class Plugin_Related_Posts extends Plugin
+{
+	/**
+	 * Posts
+	 *
+	 * Usage:
+	 * {{ related_posts:posts keywords="keyword1,keyword2,keyword3,etc" maximum_posts="5" maximum_length="100" }}
+	 *
+	 * @return	string (related posts are returned as part of a list and should be wrapped with 'ul' or 'ol' tags.
+	 */
+	function posts()
+	{
+		$keywords = $this->attribute('keywords');
+		$maxposts = $this->attribute('maximum_posts');
+		$maxlength = $this->attribute('maximum_length');
+
+		$keywordArray = explode(",", $keywords);
+
+		$this->db->select('id');
+		$this->db->from('keywords');
+		$this->db->where_in('name', $keywordArray);
+		$result = $this->db->get();
+
+		$keywordIds = array();
+		foreach($result->result() as $r)
+		{
+			$keywordIds[] = $r->id;
+		}
+
+		if(!empty($result))
+		{
+			$this->db->select('*');
+			$this->db->from('keywords_applied');
+			$this->db->where_in('keyword_id', $keywordIds);
+			$applied = $this->db->get();
+
+			if(!empty($applied))
+			{
+				$hash_store = array();
+				foreach($applied->result() as $a)
+				{
+					$hash_store[] = $a->hash;
+				}
+
+				if(!empty($hash_store))
+				{
+					// time to search the blog posts!
+					$this->db->select('*');
+					$this->db->from('blog');
+					$this->db->where_in('keywords', $hash_store);
+					$this->db->limit($maxposts);
+					$this->db->order_by('created_on', 'desc');
+					$postQuery = $this->db->get();
+
+					$postString = '';
+
+					foreach($postQuery->result() as $post)
+					{
+						$postString .='<li>'.anchor('blog/'.date('Y/m', $post->created_on) .'/'.$post->slug, $this->neat_trim($post->title, $maxlength)).' - '.date('M jS Y', $post->created_on).'</li>';
+					}
+
+					return $postString;
+				}
+			}
+		}
+	}
+
+	function neat_trim($str, $n, $delim='...') 
+	{
+	   $len = strlen($str);
+	   if ($len > $n) 
+	   {
+	       preg_match('/(.{' . $n . '}.*?)\b/', $str, $matches);
+	       return rtrim($matches[1]) . $delim;
+	   }
+	   else 
+	   {
+	       return $str;
+	   }
+	}
+}
+/* End of file related_posts.php */