Categories database
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bl-kernel/dbcategories.class.php
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130
bl-kernel/dbcategories.class.php
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<?php defined('BLUDIT') or die('Bludit CMS.');
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/*
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Database structure
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- To re index the list of posts and pages need to be sorted
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{
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"postsIndex": {
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"videos": {
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"name": "Videos",
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"list": [ "first-post", "second-post" ]
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},
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"pets": {
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"name": "Pets",
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"list": [ "second-post", "another-post" ]
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}
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},
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"pagesIndex": {
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"videos": {
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"name": "Videos",
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"list": [ "first-post", "second-post" ]
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},
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"music": {
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"name": "Music",
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"list": [ "second-post", "another-post" ]
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}
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}
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}
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*/
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class dbCategories extends dbJSON
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{
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public $dbFields = array(
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'postsIndex'=>array('inFile'=>false, 'value'=>array()),
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'pagesIndex'=>array('inFile'=>false, 'value'=>array())
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);
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function __construct()
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{
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parent::__construct(PATH_DATABASES.'categories.php');
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}
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private function getByCategory($type='postsIndex', $categorySlug, $amountPerPage, $pageNumber)
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{
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// Check if the category exists
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if( !isset($this->db[$type][$categorySlug]) ) {
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Log::set(__METHOD__.LOG_SEP.'Error getting '.$type.' by the category: '.$categorySlug);
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return array();
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}
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$list = $this->db[$type][$categorySlug]['list'];
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$init = (int) $amountPerPage * $pageNumber;
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$end = (int) min( ($init + $amountPerPage - 1), count($list) - 1 );
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$outrange = $init<0 ? true : $init > $end;
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if($outrange) {
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Log::set(__METHOD__.LOG_SEP.'Error getting '.$type.' by the category, out of range, pageNumber: '.$pageNumber);
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return array();
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}
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$tmp = array_flip($list);
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return array_slice($tmp, $init, $amountPerPage, true);
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}
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public function getPagesByCategory($categorySlug, $amountPerPage, $pageNumber)
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{
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return $this->getByCategory('pagesIndex', $categorySlug, $amountPerPage, $pageNumber);
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}
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public function getPostsByCategory($categorySlug, $amountPerPage, $pageNumber)
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{
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return $this->getByCategory('postsIndex', $categorySlug, $amountPerPage, $pageNumber);
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}
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private function countByCategory($type='postsIndex', $categorySlug)
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{
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if( isset($this->db[$type][$categorySlug]) ) {
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return count($this->db[$type][$categorySlug]['list']);
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}
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return 0;
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}
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public function countPostsByCategory($categorySlug)
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{
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return $this->countByCategory('postsIndex', $categorySlug);
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}
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public function countPagesByCategory($categorySlug)
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{
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return $this->countByCategory('pagesIndex', $categorySlug);
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}
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// Regenerate the posts index for each tag.
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// (array) $db, the $db must be sorted by date and the posts published only.
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public function reindexPosts($db)
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{
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$tagsIndex = array();
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// Foreach post
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foreach($db as $postKey=>$values)
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{
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$tags = $values['tags'];
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// Foreach tag from post
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foreach($tags as $tagKey=>$tagName)
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{
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if( isset($tagsIndex[$tagKey]) ) {
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array_push($tagsIndex[$tagKey]['posts'], $postKey);
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}
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else {
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$tagsIndex[$tagKey]['name'] = $tagName;
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$tagsIndex[$tagKey]['posts'] = array($postKey);
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}
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}
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}
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$this->db['postsIndex'] = $tagsIndex;
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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return true;
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}
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}
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