562 lines
13 KiB
PHP
562 lines
13 KiB
PHP
<?php defined('BLUDIT') or die('Bludit CMS.');
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class dbPosts extends dbJSON
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{
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private $dbFields = array(
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'title'=> array('inFile'=>true, 'value'=>''),
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'content'=> array('inFile'=>true, 'value'=>''),
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'description'=> array('inFile'=>false, 'value'=>''),
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'username'=> array('inFile'=>false, 'value'=>''),
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'status'=> array('inFile'=>false, 'value'=>'draft'), // published, draft, scheduled
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'tags'=> array('inFile'=>false, 'value'=>array()),
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'allowComments'=> array('inFile'=>false, 'value'=>0),
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'date'=> array('inFile'=>false, 'value'=>''),
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'dateModified'=> array('inFile'=>false, 'value'=>''),
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'coverImage'=> array('inFile'=>false, 'value'=>''),
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'md5file'=> array('inFile'=>false, 'value'=>'')
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);
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function __construct()
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{
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parent::__construct(PATH_DATABASES.'posts.php');
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}
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// Return the amount of posts
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// $total = TRUE, returns the total of posts
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// $total = FALSE, return the amount of published posts
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public function numberPost($total=false)
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{
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// Amount of total posts, published, scheduled and draft
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if($total) {
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return count($this->db);
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}
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// Amount of published posts
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$i = 0;
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foreach($this->db as $values) {
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if($values['status']=='published') {
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$i++;
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}
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}
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return $i;
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}
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// Returns the database
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public function getDB()
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{
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return $this->db;
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}
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// Return an array with the post's database, FALSE otherwise.
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public function getPostDB($key)
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{
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if($this->postExists($key)) {
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return $this->db[$key];
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}
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return false;
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}
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public function setPostDb($key, $field, $value)
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{
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if($this->postExists($key)) {
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$this->db[$key][$field] = $value;
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}
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return false;
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}
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// Return TRUE if the post exists, FALSE otherwise.
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public function postExists($key)
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{
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return isset( $this->db[$key] );
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}
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// Generate a valid Key/Slug.
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public function generateKey($text, $oldKey='')
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{
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if(Text::isEmpty($text)) {
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$text = 'empty';
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}
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$newKey = Text::cleanUrl($text);
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if($newKey===$oldKey) {
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return $newKey;
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}
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// Verify if the key is already been used.
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if( isset($this->db[$newKey]) )
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{
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if( !Text::endsWithNumeric($newKey) ) {
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$newKey = $newKey.'-0';
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}
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while( isset($this->db[$newKey]) ) {
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$newKey++;
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}
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}
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return $newKey;
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}
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public function add($args)
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{
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$dataForDb = array(); // This data will be saved in the database
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$dataForFile = array(); // This data will be saved in the file
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// Current date, format of DB_DATE_FORMAT
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$currentDate = Date::current(DB_DATE_FORMAT);
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// Generate the database key / index
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$key = $this->generateKey($args['slug']);
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// The user is always who is loggued
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$args['username'] = Session::get('username');
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if( Text::isEmpty($args['username']) ) {
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Log::set(__METHOD__.LOG_SEP.'Session username doesnt exists.');
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return false;
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}
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// If the date is not valid, then set the current date.
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if(!Valid::date($args['date'], DB_DATE_FORMAT)) {
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$args['date'] = $currentDate;
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}
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// Schedule post ?
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if( ($args['date']>$currentDate) && ($args['status']=='published') ) {
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$args['status'] = 'scheduled';
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}
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// Verify arguments with the database fields.
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foreach($this->dbFields as $field=>$options)
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{
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// If the field is in the arguments
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if( isset($args[$field]) )
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{
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if($field=='tags') {
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$tmpValue = $this->generateTags($args['tags']);
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}
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else {
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// Sanitize if will be saved on database.
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if( !$options['inFile'] ) {
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$tmpValue = Sanitize::html($args[$field]);
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}
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else {
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$tmpValue = $args[$field];
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}
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}
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}
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// Set a default value if not in the arguments
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else
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{
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$tmpValue = $options['value'];
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}
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// Check where the field will be written, in the file or in the database
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if($options['inFile']) {
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$dataForFile[$field] = Text::firstCharUp($field).': '.$tmpValue;
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}
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else
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{
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// Set type
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settype($tmpValue, gettype($options['value']));
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// Save on database
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$dataForDb[$field] = $tmpValue;
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}
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}
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// Make the directory.
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if( Filesystem::mkdir(PATH_POSTS.$key) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to create the directory '.PATH_POSTS.$key);
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return false;
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}
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// Make the index.txt and save the file.
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$data = implode("\n", $dataForFile);
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if( file_put_contents(PATH_POSTS.$key.DS.FILENAME, $data) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to put the content in the file index.txt');
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return false;
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}
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// Calculate the checksum of the file
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$dataForDb['md5file'] = md5_file(PATH_POSTS.$key.DS.FILENAME);
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// Save the database
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$this->db[$key] = $dataForDb;
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// Sort posts before save
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$this->sortByDate();
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if( $this->save() === false ) {
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// Trying to rollback
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Log::set(__METHOD__.LOG_SEP.'Rollback...');
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Filesystem::rmfile(PATH_POSTS.$key.DS.FILENAME);
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Filesystem::rmdir(PATH_POSTS.$key);
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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 $key;
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}
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public function edit($args)
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{
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if( $this->delete($args['key']) ) {
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// Modified date
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$args['dateModified'] = Date::current(DB_DATE_FORMAT);
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return $this->add($args);
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}
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to delete the post.');
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return false;
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}
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public function delete($key)
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{
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// Post doesn't exist in database.
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if(!$this->postExists($key)) {
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Log::set(__METHOD__.LOG_SEP.'The post does not exist. Key: '.$key);
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}
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// Delete the index.txt file.
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if( Filesystem::rmfile(PATH_POSTS.$key.DS.FILENAME) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to delete the file index.txt');
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}
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// Delete the directory.
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if( Filesystem::rmdir(PATH_POSTS.$key) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to delete the directory '.PATH_POSTS.$key);
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}
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// Remove from database.
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unset($this->db[$key]);
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// Save the database.
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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}
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return true;
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}
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// Returns an array with a list of posts keys, filtered by a page number.
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public function getList($pageNumber, $postPerPage, $removeUnpublished=true)
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{
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$totalPosts = $this->numberPost(true);
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// Remove the unpublished posts.
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if($removeUnpublished) {
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$this->removeUnpublished();
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$totalPosts = $this->numberPost(true);
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}
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$init = (int) $postPerPage * $pageNumber;
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$end = (int) min( ($init + $postPerPage - 1), $totalPosts - 1 );
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$outrange = $init<0 ? true : $init>$end;
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if(!$outrange) {
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$tmp = array_slice($this->db, $init, $postPerPage, true);
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// Restore the database because we deleted the unpublished posts.
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$this->restoreDB();
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return $tmp;
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}
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return array();
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}
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// Delete all posts from an user
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public function deletePostsByUser($username)
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{
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foreach($this->db as $key=>$value) {
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if($value['username']==$username) {
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$this->delete($key);
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Log::set(__METHOD__.LOG_SEP.'Post deleted: '.$key);
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}
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}
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Log::set(__METHOD__.LOG_SEP.'Posts from the user '.$username.' were delete.');
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return true;
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}
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// Link-up all posts from an user to another user.
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public function linkPostsToUser($oldUsername, $newUsername)
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{
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foreach($this->db as $key=>$value) {
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if($value['username']==$oldUsername) {
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$this->db[$key]['username'] = $newUsername;
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}
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}
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// Sort posts before save.
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$this->sortByDate();
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// Save the database.
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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Log::set(__METHOD__.LOG_SEP.'Posts linked to another user.');
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return true;
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}
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// Remove unpublished posts, status != published.
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public function removeUnpublished()
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{
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foreach($this->db as $key=>$values) {
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if($values['status']!='published') {
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unset($this->db[$key]);
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}
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}
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return true;
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}
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// Return TRUE if there are new posts published, FALSE otherwise.
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public function scheduler()
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{
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// Get current date
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$currentDate = Date::current(DB_DATE_FORMAT);
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$saveDatabase = false;
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// Check scheduled posts
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foreach($this->db as $postKey=>$values)
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{
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if($values['status']=='scheduled') {
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// Publish post
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if($values['date']<=$currentDate) {
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$this->db[$postKey]['status'] = 'published';
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$saveDatabase = true;
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}
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}
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elseif($values['status']=='published') {
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break;
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}
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}
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// Save the database ?
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if($saveDatabase)
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{
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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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Log::set(__METHOD__.LOG_SEP.'New posts published from the scheduler.');
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return true;
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}
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return false;
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}
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// Returns an Array, array('tagSlug'=>'tagName')
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// (string) $tags, tag list separeted by comma.
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public function generateTags($tags)
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{
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$tmp = array();
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$tags = trim($tags);
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if(empty($tags)) {
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return $tmp;
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}
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// Make array
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$tags = explode(',', $tags);
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foreach($tags as $tag)
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{
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$tag = trim($tag);
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$tagKey = Text::cleanUrl($tag);
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$tmp[$tagKey] = $tag;
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}
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return $tmp;
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}
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// Sort posts by date.
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public function sortByDate($HighToLow=true)
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{
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if($HighToLow) {
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uasort($this->db, array($this, 'sortHighToLow'));
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}
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else {
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uasort($this->db, array($this, 'sortLowToHigh'));
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}
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return true;
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}
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private function sortLowToHigh($a, $b) {
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return $a['date']>$b['date'];
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}
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private function sortHighToLow($a, $b) {
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return $a['date']<$b['date'];
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}
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public function cliMode()
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{
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// LOG
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Log::set('CLI MODE - POSTS - Starting...');
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$postList = array();
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$postsDirectories = Filesystem::listDirectories(PATH_POSTS);
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foreach( $postsDirectories as $directory ) {
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if( Sanitize::pathFile($directory.DS.FILENAME) ) {
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// The key is the directory name
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$key = basename($directory);
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// Add the key to the list
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$postList[$key] = true;
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// Checksum
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$checksum = md5_file($directory.DS.FILENAME);
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// LOG
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Log::set('CLI MODE - Post found, key: '.$key);
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if( !isset($this->db[$key]) ) {
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// LOG
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Log::set('CLI MODE - The post is not in the database, key: '.$key);
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// Insert new post
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$this->cliModeInsert($key);
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}
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else {
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// If checksum is different, update the post
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if( $this->db[$key]['md5file']!==$checksum ) {
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// LOG
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Log::set('CLI MODE - Different md5 checksum, key: '.$key);
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// Update the post
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$this->cliModeInsert($key, $update=true);
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}
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}
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}
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}
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// LOG
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Log::set('CLI MODE - Cleaning database...');
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foreach( array_diff_key($this->db, $postList) as $key=>$data ) {
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// LOG
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Log::set('CLI MODE - Removing post from database, key: '.$key);
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// Removing the post from database
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unset( $this->db[$key] );
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}
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// Sort posts before save
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$this->sortByDate();
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// Save the database
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$this->save();
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// LOG
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Log::set('CLI MODE - POSTS - Finishing...');
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return true;
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}
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private function cliModeInsert($key, $update=false)
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{
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if($update) {
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// LOG
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Log::set('CLI MODE - cliModeInsert() - Updating the post, key: '.$key);
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// Database from the current database
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$dataForDb = $this->db[$key];
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$dataForDb['dateModified'] = Date::current(DB_DATE_FORMAT);
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}
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else {
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// LOG
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Log::set('CLI MODE - cliModeInsert() - Inserting the new post, key: '.$key);
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// Database for the new post, fields with the default values
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$dataForDb = array();
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foreach( $this->dbFields as $field=>$options ) {
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if( !$options['inFile'] ) {
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$dataForDb[$field] = $options['value'];
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}
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}
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// Fields and value predefined in init.php
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$dataForDb['username'] = CLI_USERNAME;
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$dataForDb['status'] = CLI_STATUS;
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$dataForDb['date'] = Date::current(DB_DATE_FORMAT);
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}
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// MD5 checksum
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$dataForDb['md5file'] = md5_file(PATH_POSTS.$key.DS.FILENAME);
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// Generate the Object from the file
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$Post = new Post($key);
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foreach( $this->dbFields as $field=>$options ) {
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if( !$options['inFile'] ) {
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// Get the field from the file
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// If the field doesn't exist, the function returns FALSE
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$data = $Post->getField($field);
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if( $data!==false ) {
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$tmpValue = '';
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if( $field=='tags' ) {
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$tmpValue = $this->generateTags($data);
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}
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elseif( $field=='date' ) {
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// Validate format date from file
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if( Valid::date($data, DB_DATE_FORMAT) ) {
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$tmpValue = $data;
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if( $data > $currentDate ) {
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$dataForDb['status'] = 'scheduled';
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}
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}
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}
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else {
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$tmpValue = Sanitize::html($data);
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}
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settype($tmpValue, gettype($options['value']));
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$dataForDb[$field] = $tmpValue;
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}
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}
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}
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// Insert row in the database
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$this->db[$key] = $dataForDb;
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return true;
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}
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}
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