/wp-content/plugins/simple-forum/library/sf-permalinks.php

<?php

/*

Simple:Press

Forum Permalink Functions

$LastChangedDate: 2010-03-26 16:38:27 -0700 (Fri, 26 Mar 2010) $

$Rev: 3818 $

*/



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

	die('Access Denied');

}



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

# sf_build_url()

#

# Main URL building routine

# To use pass forum and topic slugs. Page if not known should

# always be 1 or 0. If a post id is passed (else use zero), the

# routine will go and get the correct page number for the post

# within the topic

#	$forumslug:		forum link

#	$topicslug:		topic link

#	$pageid:		page (if know - if post will calculate)

#	$postid:		post link if relevant (or zero)

#	$postindex:		sequence number of post if relevant

#

# CHANGE IN 4.2.0:

# ==============

# If the POST ID is passed AND a positive PAGE ID then it WILL

# compile a url with that page number. if the page

# number is NOT known when passing a Post ID then page must be

# passed as zero

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

function sf_build_url($forumslug, $topicslug, $pageid, $postid, $postindex=0)

{

	if ($postid != 0 && $pageid == 0)

	{

		$pageid = sf_determine_page($forumslug, $topicslug, sf_esc_int($postid), sf_esc_int($postindex));

	}



	$url = SFURL;

	if ($forumslug) $url.= $forumslug;

	if ($topicslug) $url.= '/'.$topicslug;

	if ($pageid > 1) $url.= '/page-'.$pageid;

	if ($postid) {

		$url.= '/#p'.$postid;

	} else {

		$url = trailingslashit($url);

	}

	return esc_url($url);

}



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

# sf_build_qurl()

#

# Main Query String URL building routine

# Must have at least one parameter of 'var=value' string

# Up to five can be passed in.

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



function sf_build_qurl($param1, $param2='', $param3='', $param4='', $param5='')

{

	$url = rtrim(SFURL, '/');



	# first does it need the ?

	if(strpos($url, '?') === false)

	{

		$url .= '/?';

		$and = '';

	} else {

		$and = "&";

	}



	$url.= $and.$param1;

	$and = "&";

	if(!empty($param2)) $url.= $and.$param2;

	if(!empty($param3)) $url.= $and.$param3;

	if(!empty($param4)) $url.= $and.$param4;

	if(!empty($param5)) $url.= $and.$param5;



	return $url;

}



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

# sf_get_sfqurl()

#

# Build a forum query url ready for parameters

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

function sf_get_sfqurl($url)

{

	# if no ? then add one on the end

	$url = rtrim($url, '/');

	if(strpos($url, '?') === false)

	{

		$url .= '?';

	} else {

		$url .= '&amp;';

	}

	return $url;

}



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

# sf_permalink_from_forumid()

#

# Returns permalink for forum from the forum id

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



function sf_permalink_from_forumid($forumid)

{

	$url = '';

	if(!empty($forumid))

	{

		$url = sf_build_url(sf_get_forum_slug($forumid), '', 0, 0);

	}

	return $url;

}



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

# sf_permalink_from_topicid()

#

# Returns permalink for topic from the topic id

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



function sf_permalink_from_topicid($topicid)

{

	$url = '';

	if(!empty($topicid))

	{

		$forumid = sf_get_forum_from_topic($topicid);

		$url = sf_build_url(sf_get_forum_slug($forumid), sf_get_topic_slug($topicid), 0, 0);

	}

	return $url;

}



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

# sf_permalink_from_forumid_and_topicid()

#

# Returns permalink for topic from both forum and topic ids

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



function sf_permalink_from_forumid_and_topicid($forumid, $topicid)

{

	$url = '';

	if(!empty($topicid) && !empty($forumid))

	{

		$url = sf_build_url(sf_get_forum_slug($forumid), sf_get_topic_slug($topicid), 0, 0);

	}

	return $url;

}



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

# sf_permalink_from_postid()

#

# Returns permalink for topic from only the post id

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



function sf_permalink_from_postid($postid)

{

	$url = '';

	if(!empty($postid))

	{

		$slugs = sf_get_slugs_from_postid($postid);

		$url = sf_build_url($slugs->forum_slug, $slugs->topic_slug, 0, $postid, $slugs->post_index);

	}

	return $url;

}



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

# sf_determine_page()

#

# Determines the correct page with a topic that the post

# will be displayed on based on current settings

#	$topicslug:		to look up topic id if needed

#	$postid:		the post to calculate page for

#	$postindex:		post sequence ig known

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



function sf_determine_page($forumslug, $topicslug, $postid, $postindex)

{

	global $wpdb, $sfglobals;



	# establish paging count - can sometimes be out of scope so check

	$ppaged=$sfglobals['display']['posts']['perpage'];

	if(empty($ppaged) || $ppaged == 0)

	{

		$sfdisplay = sf_get_option('sfdisplay');

		$ppaged = $sfdisplay['posts']['perpage'];

		if(!$ppaged) $ppaged=20;

	}



	# establish topic sort order

	$order="ASC"; # default

	if($sfglobals['display']['posts']['sortdesc']) $order="DESC"; # global override



	$topicrecord = sf_get_topic_record_from_slug($topicslug);



	# If we do not have the postindex then we have to go and get it

	if($postindex == 0 || empty($postindex))

	{

		$postindex = $wpdb->get_var("SELECT post_index FROM ".SFPOSTS." WHERE post_id=".$postid);



		# In the remote possibility postindex is 0 or empty then...

		if($postindex == 0 || empty($postindex))

		{

			$forumrecord = sf_get_forum_record_from_slug($forumslug);

			sf_build_forum_index($forumrecord->forum_id);

			sf_build_post_index($topicrecord->topic_id, $topicslug);

			$postindex = $wpdb->get_var("SELECT post_index FROM ".SFPOSTS." WHERE post_id=".$postid);

		}

	}



	# Now we have what we need to do the math

	if($order == 'ASC')

	{

		$page = ($postindex/$ppaged);

		if(!is_int($page))

		{

			$page=intval(($page)+1);

		}

	} else {

		$page = ($topicrecord->post_count - $postindex);

		$page = ($page/$ppaged);

		$page=intval(($page)+1);

	}

	return $page;

}



function sf_add_get()

{

	global $wp_rewrite;



	if($wp_rewrite->using_permalinks())

	{

		return '?';

	} else {

		return '&amp;';

	}

}



?>