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<?php
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// $Id:
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/**
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* @file
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* This is a helper class doing most of the database calls.
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*
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* @author Raphael Sch�r - www.schaerwebdesign.ch
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*/
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include_once('FGImage.class.php');
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class FastGallery {
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private static $instance = null;
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/**
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* We are implementing a singleton pattern
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*/
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private function __construct() {
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}
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public function getInstance() {
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if (is_null(self :: $instance)) {
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self :: $instance = new self;
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}
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return self :: $instance;
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}
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/**
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* Checks for gallery additions/deletions only. Leaves existing files alone.
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*/
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public function rescanGallery() {
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$arGalleries = variable_get('fg_galleries', array());
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foreach ($arGalleries as $gallery) {
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$path = utf8_decode($gallery['fg_path']);
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if (!is_dir($path)) {
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watchdog('fast_gallery', 'No gallery path specified! Do it at !link', array('!link' => l('admin/config/fast_gallery', 'admin/config/fast_gallery')));
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}
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// Get current file list hierarchy
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$files = $this->exploreDir($path, TRUE);
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// Delete non-existent files
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//$this->deletePics();
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// Process the files
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$FgImgContainer = array();
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$this->processFiles($files, $FgImgContainer);
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$storage = $this->getStorageEngine();
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$storage->storeImages($FgImgContainer);
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}
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// Check for orphan images/folders and fix it
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//$this->checkHierarchy();
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}
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/**
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* Return the storage engine
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* @return Istorage
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*/
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public function getStorageEngine() {
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$engines = module_invoke_all('fast_gallery_info');
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$file = variable_get('fg_storage_engine', FG_DEFAULT_STORAGE_ENGINE);
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include_once($engines['storageengine'][$file]['path'].'/'.$engines['storageengine'][$file]['file']);
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switch ($file) {
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case 'default':
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print 'hallo welt';
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return new DefaultStorage();
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}
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}
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/**
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* Process the images (which are right now only a path) and
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* make nice FGImages out of them so that they can be
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* passed to the storage engine
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*
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* @param ar_files
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* Array of files, as returned by exploreDir()
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* @param fGImagesContainer
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* Array that collects the created FGImages objects
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*/
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private function processFiles($ar_files, &$fGImagesContainer) {
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foreach ($ar_files as $key => $value) {
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// If we found a folder, recurse through it
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if (is_array($value)) {
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$this->processFiles($value, $fGImagesContainer);
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}
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else {
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// Handle files with special characters.
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$value_slash = str_replace('\\', '/', utf8_encode($value));
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$fGImagesContainer[] = new FGImage($value_slash);
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}
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//we don't care about empty arrays
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if (is_array($value) && count($value) < 1) {
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continue;
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}
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}
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//return $fgImagesContainer;
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}
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/**
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* clearing the db -> removing all entries from the db
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*
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*/
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public function clearDb() {
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$storage = $this->getStorageEngine();
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$storage->clearDb();
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}
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/**
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* Get all images in given directory.
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*
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* @param path
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* Absolute path of the directory
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* @param recursive
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* Specify whether to recurse through subdirectories.
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* @return
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* Array of arrays of image files. Each array element corresponds to
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* an image type. If recursive is on, returns an array tree hierarchy.
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*/
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private function exploreDir($path = '', $recursive = FALSE) {
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// List of image extensions
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$exts = array (
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'jpg',
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'jpeg',
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'png',
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'gif',
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'bmp',
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/*'flv',
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'mov',
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'wmv',
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'asx',
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'swf',
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'pdf',*/
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);
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// Get all image files of each file type
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$files = array ();
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foreach ($exts as $ext) {
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$pattern = sql_regcase($path . '*.' . $ext);
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$files[] = glob($pattern);
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}
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// Recurse through subdirectories if necessary
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if ($recursive) {
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$dirs = glob($path . '*', GLOB_MARK | GLOB_ONLYDIR);
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if (is_array($dirs)) {
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foreach ($dirs as $dir) {
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$files[] = $this->exploreDir($dir, TRUE);
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}
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}
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}
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return $files;
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}
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/**
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* Building the array for the breadcrumbs
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* @return array
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*/
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public function buildBreadCrumbs() {
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$bc = array();
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$path = '';
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foreach (arg() as $item) {
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$path .= $item . '/';
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$bc[] = l($item, $path);
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}
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return $bc;
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}
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}
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