bludit/bl-kernel/dbcategories.class.php

130 lines
3.0 KiB
PHP

<?php defined('BLUDIT') or die('Bludit CMS.');
/*
Database structure
- To re index the list of posts and pages need to be sorted
{
"postsIndex": {
"videos": {
"name": "Videos",
"list": [ "first-post", "second-post" ]
},
"pets": {
"name": "Pets",
"list": [ "second-post", "another-post" ]
}
},
"pagesIndex": {
"videos": {
"name": "Videos",
"list": [ "first-post", "second-post" ]
},
"music": {
"name": "Music",
"list": [ "second-post", "another-post" ]
}
}
}
*/
class dbCategories extends dbJSON
{
public $dbFields = array(
'postsIndex'=>array('inFile'=>false, 'value'=>array()),
'pagesIndex'=>array('inFile'=>false, 'value'=>array())
);
function __construct()
{
parent::__construct(PATH_DATABASES.'categories.php');
}
private function getByCategory($type='postsIndex', $categorySlug, $amountPerPage, $pageNumber)
{
// Check if the category exists
if( !isset($this->db[$type][$categorySlug]) ) {
Log::set(__METHOD__.LOG_SEP.'Error getting '.$type.' by the category: '.$categorySlug);
return array();
}
$list = $this->db[$type][$categorySlug]['list'];
$init = (int) $amountPerPage * $pageNumber;
$end = (int) min( ($init + $amountPerPage - 1), count($list) - 1 );
$outrange = $init<0 ? true : $init > $end;
if($outrange) {
Log::set(__METHOD__.LOG_SEP.'Error getting '.$type.' by the category, out of range, pageNumber: '.$pageNumber);
return array();
}
$tmp = array_flip($list);
return array_slice($tmp, $init, $amountPerPage, true);
}
public function getPagesByCategory($categorySlug, $amountPerPage, $pageNumber)
{
return $this->getByCategory('pagesIndex', $categorySlug, $amountPerPage, $pageNumber);
}
public function getPostsByCategory($categorySlug, $amountPerPage, $pageNumber)
{
return $this->getByCategory('postsIndex', $categorySlug, $amountPerPage, $pageNumber);
}
private function countByCategory($type='postsIndex', $categorySlug)
{
if( isset($this->db[$type][$categorySlug]) ) {
return count($this->db[$type][$categorySlug]['list']);
}
return 0;
}
public function countPostsByCategory($categorySlug)
{
return $this->countByCategory('postsIndex', $categorySlug);
}
public function countPagesByCategory($categorySlug)
{
return $this->countByCategory('pagesIndex', $categorySlug);
}
// Regenerate the posts index for each tag.
// (array) $db, the $db must be sorted by date and the posts published only.
public function reindexPosts($db)
{
$tagsIndex = array();
// Foreach post
foreach($db as $postKey=>$values)
{
$tags = $values['tags'];
// Foreach tag from post
foreach($tags as $tagKey=>$tagName)
{
if( isset($tagsIndex[$tagKey]) ) {
array_push($tagsIndex[$tagKey]['posts'], $postKey);
}
else {
$tagsIndex[$tagKey]['name'] = $tagName;
$tagsIndex[$tagKey]['posts'] = array($postKey);
}
}
}
$this->db['postsIndex'] = $tagsIndex;
if( $this->save() === false ) {
Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
return false;
}
return true;
}
}