/wp-content/plugins/simple-forum/linking/library/sf-links-support.php

<?php

/*

Simple:Press

Blog Linking - general support routines

$LastChangedDate: 2010-09-11 14:51:26 -0700 (Sat, 11 Sep 2010) $

$Rev: 4613 $

*/



if(preg_match('#' . basename(__FILE__) . '#', $_SERVER['PHP_SELF'])) {

	die('Access Denied');

}



# ------------------------------------------------------------------

# sf_blog_links_control()

#

# MOVED to sf-public.php to make it always available as can be

# used for canonical urls.

# ------------------------------------------------------------------



# ------------------------------------------------------------------

# sf_make_excerpt()

#

# Creates an excerpt of x number of words from post content

#	$content	The text of the post

#	$words		Word count required (defaults to 50)

# ------------------------------------------------------------------

function sf_make_excerpt($content, $words)

{

	if((empty($words)) || ($words == 0)) $words = 50;



	if($content != '')

	{

		$length = $words;

		$content = str_replace(']]>', ']]&gt;', $content);



		if($length > count(preg_split('/[\s]+/', strip_tags($content), -1)))

		{

			return $content;

		}



		$text_bits = preg_split('/([\s]+)/', $content, -1, PREG_SPLIT_DELIM_CAPTURE);

		$in_tag = false;

		$n_words = 0;

		$content = '';

		foreach($text_bits as $chunk)

		{

			if(0 < preg_match('/<[^>]*$/s', $chunk))

			{

				$in_tag = true;

			} elseif(0 < preg_match('/>[^<]*$/s', $chunk)) {

				$in_tag = false;

			}



			if(!$in_tag && '' != trim($chunk) && substr($chunk, -1, 1) != '>')

			{

				$n_words++;

			}

			$content .= $chunk;



			if($n_words >= $length && !$in_tag)

			{

				break;

			}

		}

		$content = $content . '&#8230;';

		$content = force_balance_tags($content);

	}

	return $content;

}



# ------------------------------------------------------------------

# sf_sync_blog_tags()

#

# Creates topic tags based on blog post tags if used

#	$postid		WP Post id of the link

#	$data		forum/topic postmeta data

# ------------------------------------------------------------------

function sf_sync_blog_tags($postid, $forumid, $topicid)

{

	# get tags for wp blog post

	$terms = apply_filters( 'get_the_tags', wp_get_object_terms($postid, 'post_tag') );



	# get the forum id and topic id ($data => forumid@topicid)

	$forum = sf_get_forum_record($forumid);



	# only do tags if the forum is setup for tags and the blog post has tags

	if ($forum->use_tags && $terms)

	{

		$tags = array();

		foreach ($terms as $term)

		{

			$tags[] = $term->name;

		}

		# need tags in a list

		$tags = implode(",", $tags);



		# now save the topic tags but in case its an update use change routine

		sf_change_topic_tags($topicid, $tags);

	}

}



# ------------------------------------------------------------------

# sf_transform_bloglink_label()

#

# Formats the label to display on blog posts

#	$postid		WP Post id of the link

#	$links		forum/topic postmeta data

#	$show_img	Support template tag no image option

# ------------------------------------------------------------------

function sf_transform_bloglink_label($postid, $links, $show_img=true)

{

	if(!defined('SFRESOURCES')) {

		sf_setup_global_constants();

	}



	$out = '';



	$sfpostlinking = array();

	$sfpostlinking = sf_get_option('sfpostlinking');

	$text = sf_filter_title_display($sfpostlinking['sflinkblogtext']);

	$icon = '<img src="'.SFRESOURCES.'bloglink.png" alt="" />';

	$postcount = sf_get_posts_count_in_linked_topic($links->topic_id, false);

	$href = '<a href="'.sf_build_url(sf_get_forum_slug($links->forum_id), sf_get_topic_slug($links->topic_id), 1, 0).'">';



	if(!$postcount)

	{

		# break the link

		sf_blog_links_control('delete', $postid);

		return $content;

	}



    if ($show_img)

	{

		if(strpos($text, '%ICON%') !== false)

		{

			$text = str_replace('%ICON%', $icon, $text);

		}

	} else {

		$text = str_replace('%ICON%', '', $text);

	}



	if(strpos($text, '%FORUMNAME%') !== false)

	{

		$text = str_replace('%FORUMNAME%', sf_get_forum_name_from_id($links->forum_id), $text);

	}



	if(strpos($text, '%TOPICNAME%') !== false)

	{

		$text = str_replace('%TOPICNAME%', sf_get_topic_name_from_id($links->topic_id), $text);

	}



	if(strpos($text, '%POSTCOUNT%') !== false)

	{

		$text = str_replace('%POSTCOUNT%', $postcount, $text);

	}



	if(strpos($text, '%LINKSTART%') !== false)

	{

		$text = str_replace('%LINKSTART%', $href, $text);

	} else {

		$text = $href.$text;

	}



	if(strpos($text, '%LINKEND%') !== false)

	{

		$text = str_replace('%LINKEND%', '</a>', $text);

	} else {

		$text = $text.'</a>';

	}



	$out = '<span class="sfforumlink">'.$text.'</span>';



	return $out;

}

?>