mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
e87b76b305
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@47941 467b73ca-7a2a-4603-9d3b-597d59a354a9
771 lines
20 KiB
PHP
Executable File
771 lines
20 KiB
PHP
Executable File
<?php
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/**
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* @package sapphire
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* @subpackage filesystem
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*/
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/**
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* Represents an image attached to a page.
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* @package sapphire
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* @subpackage filesystem
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*/
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class Image extends File {
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/**
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* The width of an image thumbnail in a strip.
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* @var int
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*/
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public static $strip_thumbnail_width = 50;
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/**
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* The height of an image thumbnail in a strip.
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* @var int
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*/
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public static $strip_thumbnail_height = 50;
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/**
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* The width of an image thumbnail in the CMS.
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* @var int
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*/
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public static $cms_thumbnail_width = 100;
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/**
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* The height of an image thumbnail in the CMS.
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*/
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public static $cms_thumbnail_height = 100;
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/**
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* The width of an image thumbnail in the Asset section.
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*/
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public static $asset_thumbnail_width = 100;
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/**
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* The height of an image thumbnail in the Asset section.
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*/
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public static $asset_thumbnail_height = 100;
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/**
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* The width of an image preview in the Asset section.
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*/
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public static $asset_preview_width = 400;
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/**
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* The height of an image preview in the Asset section.
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*/
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public static $asset_preview_height = 200;
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/**
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* Set up template methods to access the transformations generated by 'generate' methods.
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*/
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public function defineMethods() {
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$methodNames = $this->allMethodNames();
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foreach($methodNames as $methodName) {
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if(substr($methodName,0,8) == 'generate') {
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$this->addWrapperMethod(substr($methodName,8), 'getFormattedImage');
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}
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}
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parent::defineMethods();
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}
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/**
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* An image exists if it has a filename.
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* @return boolean
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*/
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public function exists() {
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if(isset($this->record["Filename"])) {
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return true;
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}
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}
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/**
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* Get the URL for this Image.
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* @return boolean
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*/
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function URL() {
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return Director::baseURL() . $this->Filename;
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}
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/**
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* Return an XHTML img tag for this Image.
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* @return string
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*/
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function Tag() {
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if(file_exists("../" . $this->Filename)) {
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$url = $this->URL();
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$title = $this->Title;
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return "<img src=\"$url\" alt=\"$title\" />";
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}
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}
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/**
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* Return an XHTML img tag for this Image.
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* @return string
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*/
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function forTemplate() {
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return $this->Tag();
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}
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/**
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* Load a recently uploaded image into this image field.
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* @param array $tmpFile The array entry from $_FILES
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* @return boolean Returns true if successful
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*/
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function loadUploaded($tmpFile) {
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if(parent::loadUploaded($tmpFile)) {
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$this->deleteFormattedImages();
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return true;
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}
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}
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function loadUploadedImage($tmpFile) {
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if(!is_array($tmpFile)) {
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user_error("Image::loadUploadedImage() Not passed an array. Most likely, the form hasn't got the right enctype", E_USER_ERROR);
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}
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if(!$tmpFile['size']) {
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return;
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}
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$base = dirname(dirname($_SERVER['SCRIPT_FILENAME']));
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$class = $this->class;
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// Create a folder
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if(!file_exists("$base/assets")) {
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mkdir("$base/assets", Filesystem::$folder_create_mask);
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}
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if(!file_exists("$base/assets/$class")) {
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mkdir("$base/assets/$class", Filesystem::$folder_create_mask);
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}
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// Generate default filename
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$file = str_replace(' ', '-',$tmpFile['name']);
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$file = ereg_replace('[^A-Za-z0-9+.-]+','',$file);
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$file = ereg_replace('-+', '-',$file);
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if(!$file) {
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$file = "file.jpg";
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}
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$file = "assets/$class/$file";
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while(file_exists("$base/$file")) {
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$i = $i ? ($i+1) : 2;
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$oldFile = $file;
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$file = ereg_replace('[0-9]*(\.[^.]+$)',$i . '\\1', $file);
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if($oldFile == $file && $i > 2) user_error("Couldn't fix $file with $i", E_USER_ERROR);
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}
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if(file_exists($tmpFile['tmp_name']) && copy($tmpFile['tmp_name'], "$base/$file")) {
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// Remove the old images
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$this->deleteFormattedImages();
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return true;
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}
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}
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public function SetWidth($width) {
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return $this->getFormattedImage('SetWidth', $width);
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}
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/**
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* Resize this Image by width, keeping aspect ratio. Use in templates with $SetWidth.
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* @return GD
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*/
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public function generateSetWidth(GD $gd, $width) {
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return $gd->resizeByWidth($width);
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}
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/**
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* Resize this Image by height, keeping aspect ratio. Use in templates with $SetHeight.
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* @return GD
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*/
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public function generateSetHeight(GD $gd, $height){
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return $gd->resizeByHeight($height);
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}
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public function CMSThumbnail() {
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return $this->getFormattedImage('CMSThumbnail');
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}
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/**
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* Resize this image for the CMS. Use in templates with $CMSThumbnail.
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* @return GD
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*/
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function generateCMSThumbnail(GD $gd) {
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return $gd->paddedResize($this->stat('cms_thumbnail_width'),$this->stat('cms_thumbnail_height'));
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}
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/**
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* Resize this image for preview in the Asset section. Use in templates with $AssetLibraryPreview.
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* @return GD
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*/
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function generateAssetLibraryPreview(GD $gd) {
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return $gd->paddedResize($this->stat('asset_preview_width'),$this->stat('asset_preview_height'));
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}
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/**
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* Resize this image for thumbnail in the Asset section. Use in templates with $AssetLibraryThumbnail.
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* @return GD
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*/
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function generateAssetLibraryThumbnail(GD $gd) {
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return $gd->paddedResize($this->stat('asset_thumbnail_width'),$this->stat('asset_thumbnail_height'));
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}
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/**
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* Resize this image for use as a thumbnail in a strip. Use in templates with $StripThumbnail.
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* @return GD
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*/
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function generateStripThumbnail(GD $gd) {
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return $gd->croppedResize($this->stat('strip_thumbnail_width'),$this->stat('strip_thumbnail_height'));
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}
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function generatePaddedImage(GD $gd, $width, $height) {
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return $gd->paddedResize($width, $height);
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}
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/**
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* Return an image object representing the image in the given format.
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* This image will be generated using generateFormattedImage().
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* The generated image is cached, to flush the cache append ?flush=1 to your URL.
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* @param string $format The name of the format.
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* @param string $arg1 An argument to pass to the generate function.
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* @param string $arg2 A second argument to pass to the generate function.
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* @return Image_Cached
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*/
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function getFormattedImage($format, $arg1 = null, $arg2 = null) {
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if($this->ID && $this->Filename && Director::fileExists($this->Filename)) {
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$cacheFile = $this->cacheFilename($format, $arg1, $arg2);
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if(!file_exists("../".$cacheFile) || isset($_GET['flush'])) {
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$this->generateFormattedImage($format, $arg1, $arg2);
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}
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return new Image_Cached($cacheFile);
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}
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}
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/**
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* Return the filename for the cached image, given it's format name and arguments.
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* @param string $format The format name.
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* @param string $arg1 The first argument passed to the generate function.
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* @param string $arg2 The second argument passed to the generate function.
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* @return string
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*/
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function cacheFilename($format, $arg1 = null, $arg2 = null) {
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$folder = $this->ParentID ? $this->Parent()->Filename : "assets/";
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$format = $format.$arg1.$arg2;
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return $folder . "_resampled/$format-" . $this->Name;
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}
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/**
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* Generate an image on the specified format. It will save the image
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* at the location specified by cacheFilename(). The image will be generated
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* using the specific 'generate' method for the specified format.
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* @param string $format Name of the format to generate.
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* @param string $arg1 Argument to pass to the generate method.
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* @param string $arg2 A second argument to pass to the generate method.
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*/
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function generateFormattedImage($format, $arg1 = null, $arg2 = null) {
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$cacheFile = $this->cacheFilename($format, $arg1, $arg2);
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$gd = new GD("../" . $this->Filename);
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if($gd->hasGD()){
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$generateFunc = "generate$format";
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if($this->hasMethod($generateFunc)){
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$gd = $this->$generateFunc($gd, $arg1, $arg2);
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if($gd){
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$gd->writeTo("../" . $cacheFile);
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}
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} else {
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USER_ERROR("Image::generateFormattedImage - Image $format function not found.",E_USER_WARNING);
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}
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}
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}
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/**
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* Generate a resized copy of this image with the given width & height.
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* Use in templates with $ResizedImage.
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*/
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function generateResizedImage($gd, $width, $height) {
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if(is_numeric($gd) || !$gd){
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USER_ERROR("Image::generateFormattedImage - generateResizedImage is being called by legacy code or gd is not set.",E_USER_WARNING);
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}else{
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return $gd->resize($width, $height);
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}
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}
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/**
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* Generate a resized copy of this image with the given width & height, cropping to maintain aspect ratio.
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* Use in templates with $CroppedImage
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*/
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function generateCroppedImage($gd, $width, $height) {
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return $gd->croppedResize($width, $height);
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}
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/**
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* Remove all of the formatted cached images.
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* Should be called by any method that updates the current image.
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*/
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public function deleteFormattedImages() {
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if($this->Filename) {
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$numDeleted = 0;
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$methodNames = $this->allMethodNames();
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$numDeleted = 0;
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foreach($methodNames as $methodName) {
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if(substr($methodName,0,8) == 'generate') {
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$format = substr($methodName,8);
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$cacheFile = $this->cacheFilename($format);
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if(Director::fileExists($cacheFile)) {
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unlink(Director::getAbsFile($cacheFile));
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$numDeleted++;
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}
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}
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}
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return $numDeleted;
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}
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}
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/**
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* Get the dimensions of this Image.
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* @param string $dim If this is equal to "string", return the dimensions in string form,
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* if it is 0 return the height, if it is 1 return the width.
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* @return string|int
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*/
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function getDimensions($dim = "string") {
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if($this->getField('Filename')) {
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$imagefile = Director::baseFolder() . '/' . $this->getField('Filename');
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if(file_exists($imagefile)) {
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$size = getimagesize($imagefile);
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return ($dim === "string") ? "$size[0]x$size[1]" : $size[$dim];
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} else {
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return ($dim === "string") ? "file '$imagefile' not found" : null;
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}
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}
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}
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/**
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* Get the width of this image.
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* @return int
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*/
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function getWidth() {
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return $this->getDimensions(0);
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}
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/**
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* Get the height of this image.
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* @return int
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*/
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function getHeight() {
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return $this->getDimensions(1);
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}
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}
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/**
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* A resized / processed {@link Image} object.
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* When Image object are processed or resized, a suitable Image_Cached object is returned, pointing to the
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* cached copy of the processed image.
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* @package sapphire
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* @subpackage filesystem
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*/
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class Image_Cached extends Image {
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/**
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* Create a new cached image.
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* @param string $filename The filename of the image.
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* @param boolean $isSingleton This this to true if this is a singleton() object, a stub for calling methods. Singletons
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* don't have their defaults set.
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*/
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public function __construct($filename = null, $isSingleton = false) {
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parent::__construct(array(), $isSingleton);
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$this->Filename = $filename;
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}
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public function getRelativePath() {
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return $this->getField('Filename');
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}
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// Prevent this from doing anything
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public function requireTable() {
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}
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public function debug() {
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return "Image_Cached object for $this->Filename";
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}
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}
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/**
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* A db field type designed to help save images.
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* @deprecated Use a has_one relationship pointing to the file table instead.
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* @package sapphire
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* @subpackage filesystem
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*/
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class Image_Saver extends DBField {
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function saveInto($record) {
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$image = $record->getComponent($this->name);
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if(!$image) {
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$image = $record->createComponent($this->name);
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}
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if($image) {
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$image->loadUploaded($this->value);
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} else {
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user_error("ImageSaver::saveInto() Image field '$this->name' note found", E_USER_ERROR);
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}
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}
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function requireField() {
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return null;
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}
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}
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/**
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* Uploader support for the uploading anything which is a File or subclass of File, eg Image.
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* @package sapphire
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* @subpackage filesystem
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*/
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class Image_Uploader extends Controller {
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/**
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* Ensures the css is loaded for the iframe.
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*/
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function iframe() {
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Requirements::css("cms/css/Image_iframe.css");
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return array();
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}
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/**
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* Image object attached to this class.
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* @var Image
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*/
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protected $imageObj;
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/**
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* Associated parent object.
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* @var DataObject
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*/
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protected $linkedObj;
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/**
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* Finds the associated parent object from the urlParams.
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* @return DataObject
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*/
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function linkedObj() {
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if(!$this->linkedObj) {
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$this->linkedObj = DataObject::get_by_id($this->urlParams['Class'], $this->urlParams['ID']);
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if(!$this->linkedObj) {
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user_error("Data object '{$this->urlParams['Class']}.{$this->urlParams['ID']}' couldn't be found", E_USER_ERROR);
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}
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}
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return $this->linkedObj;
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}
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/**
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* Returns the Image object attached to this class.
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* @return Image
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*/
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function Image() {
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if(!$this->imageObj) {
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$funcName = $this->urlParams['Field'];
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$linked = $this->linkedObj();
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$this->imageObj = $linked->obj($funcName);
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if(!$this->imageObj) {$this->imageObj = new Image(null);}
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}
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return $this->imageObj;
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}
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/**
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* Returns true if the file attachment is an image.
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* Otherwise, it's a file.
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* @return boolean
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*/
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function IsImage() {
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$className = $this->Image()->class;
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return $className == "Image" || is_subclass_of($className, "Image");
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}
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function UseSimpleForm() {
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if(!$this->useSimpleForm) {
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$this->useSimpleForm = false;
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}
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return $this->useSimpleForm;
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}
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/**
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* Return a link to this uploader.
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* @return string
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*/
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function Link($action = null) {
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return $this->RelativeLink($action);
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}
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/**
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* Return the relative link to this uploader.
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* @return string
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*/
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function RelativeLink($action = null) {
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if(!$action) {
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$action = "index";
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}
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return "images/$action/{$this->urlParams['Class']}/{$this->urlParams['ID']}/{$this->urlParams['Field']}";
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}
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/**
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* Form to show the current image and allow you to upload another one.
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* @return Form
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*/
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function EditImageForm() {
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$isImage = $this->IsImage();
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$type = $isImage ? _t('Controller.IMAGE', "Image") : _t('Controller.FILE', "File");
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if($this->Image()->ID) {
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$title = sprintf(
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_t('ImageUploader.REPLACE', "Replace %s", PR_MEDIUM, 'Replace file/image'),
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$type
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);
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$fromYourPC = _t('ImageUploader.ONEFROMCOMPUTER', "With one from your computer");
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$fromTheDB = _t('ImageUplaoder.ONEFROMFILESTORE', "With one from the file store");
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} else {
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$title = sprintf(
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_t('ImageUploader.ATTACH', "Attach %s", PR_MEDIUM, 'Attach image/file'),
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$type
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);
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$fromYourPC = _t('ImageUploader.FROMCOMPUTER', "From your computer");
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$fromTheDB = _t('ImageUploader.FROMFILESTORE', "From the file store");
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}
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return new Form(
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$this,
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'EditImageForm',
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new FieldSet(
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new HiddenField("Class", null, $this->urlParams['Class']),
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new HiddenField("ID", null, $this->urlParams['ID']),
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new HiddenField("Field", null, $this->urlParams['Field']),
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new HeaderField($title),
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new SelectionGroup("ImageSource", array(
|
|
"new//$fromYourPC" => new FieldGroup("",
|
|
new FileField("Upload","")
|
|
),
|
|
"existing//$fromTheDB" => new FieldGroup("",
|
|
new TreeDropdownField("ExistingFile", "","File")
|
|
)
|
|
))
|
|
),
|
|
new FieldSet(
|
|
new FormAction("save",$title)
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* A simple version of the upload form.
|
|
* @returns string
|
|
*/
|
|
function EditImageSimpleForm() {
|
|
$isImage = $this->IsImage();
|
|
$type = $isImage ? _t('Controller.IMAGE') : _t('Controller.FILE');
|
|
if($this->Image()->ID) {
|
|
$title = sprintf(
|
|
_t('ImageUploader.REPLACE'),
|
|
$type
|
|
);
|
|
$fromYourPC = _t('ImageUploader.ONEFROMCOMPUTER');
|
|
} else {
|
|
$title = sprintf(
|
|
_t('ImageUploader.ATTACH'),
|
|
$type
|
|
);
|
|
$fromTheDB = _t('ImageUploader.ONEFROMFILESTORE');
|
|
}
|
|
|
|
return new Form($this, 'EditImageSimpleForm', new FieldSet(
|
|
new HiddenField("Class", null, $this->urlParams['Class']),
|
|
new HiddenField("ID", null, $this->urlParams['ID']),
|
|
new HiddenField("Field", null, $this->urlParams['Field']),
|
|
new FileField("Upload","")
|
|
),
|
|
new FieldSet(
|
|
new FormAction("save",$title)
|
|
));
|
|
}
|
|
|
|
/**
|
|
* A form to delete this image.
|
|
* @return string
|
|
*/
|
|
function DeleteImageForm() {
|
|
if($this->Image()->ID) {
|
|
$isImage = $this->IsImage();
|
|
$type = $isImage ? _t('Controller.IMAGE') : _t('Controller.FILE');
|
|
$title = sprintf(
|
|
_t('ImageUploader.DELETE', 'Delete %s', PR_MEDIUM, 'Delete file/image'),
|
|
$type
|
|
);
|
|
return new Form(
|
|
$this,
|
|
'DeleteImageForm',
|
|
new FieldSet(
|
|
new HiddenField("Class", null, $this->urlParams['Class']),
|
|
new HiddenField("ID", null, $this->urlParams['ID']),
|
|
new HiddenField("Field", null, $this->urlParams['Field']),
|
|
new HeaderField($title),
|
|
new LabelField(
|
|
sprintf(
|
|
_t(
|
|
'ImageUploader.CLICKREMOVE',
|
|
"Click the button below to remove this %s.",
|
|
PR_MEDIUM,
|
|
'... this image/file'
|
|
),
|
|
$type
|
|
)
|
|
)
|
|
),
|
|
new FieldSet(
|
|
new ConfirmedFormAction(
|
|
"delete",
|
|
$title,
|
|
sprintf(_t('ImageUploader.REALLYDELETE', "Do you really want to remove this %s?"), $type)
|
|
)
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Save the data in this form.
|
|
*/
|
|
function save($data, $form) {
|
|
if($data['ImageSource'] != 'existing' && $data['Upload']['size'] == 0) {
|
|
// No image has been uploaded
|
|
Director::redirectBack();
|
|
return;
|
|
}
|
|
$owner = DataObject::get_by_id($data['Class'], $data['ID']);
|
|
$fieldName = $data['Field'] . 'ID';
|
|
|
|
if($data['ImageSource'] == 'existing') {
|
|
if(!$data['ExistingFile']) {
|
|
// No image has been selected
|
|
Director::redirectBack();
|
|
return;
|
|
}
|
|
|
|
$owner->$fieldName = $data['ExistingFile'];
|
|
|
|
// Edit the class name, if applicable
|
|
$existingFile = DataObject::get_by_id("File", $data['ExistingFile']);
|
|
$desiredClass = $owner->has_one($data['Field']);
|
|
|
|
// Unless specifically asked, we don't want the user to be able
|
|
// to select a folder
|
|
if(is_a($existingFile, 'Folder') && $desiredClass != 'Folder') {
|
|
Director::redirectBack();
|
|
return;
|
|
}
|
|
|
|
if(!is_a($existingFile, $desiredClass)) {
|
|
$existingFile->ClassName = $desiredClass;
|
|
$existingFile->write();
|
|
}
|
|
} else {
|
|
// TODO We need to replace this with a way to get the type of a field
|
|
$imageClass = $owner->has_one($data['Field']);
|
|
|
|
// If we can't find the relationship, assume its an Image.
|
|
if( !$imageClass) {
|
|
if(!is_subclass_of( $imageClass, 'Image' )){
|
|
$imageClass = 'Image';
|
|
}
|
|
}
|
|
|
|
// Assuming its a decendant of File
|
|
$image = new $imageClass();
|
|
$image->loadUploaded($data['Upload']);
|
|
$owner->$fieldName = $image->ID;
|
|
|
|
// store the owner id with the uploaded image
|
|
$member = Member::currentUser();
|
|
$image->OwnerID = $member->ID;
|
|
$image->write();
|
|
}
|
|
|
|
$owner->write();
|
|
Director::redirectBack();
|
|
}
|
|
|
|
/**
|
|
* Delete the image referenced by this form.
|
|
*/
|
|
function delete($data, $form) {
|
|
$owner = DataObject::get_by_id( $data[ 'Class' ], $data[ 'ID' ] );
|
|
$fieldName = $data[ 'Field' ] . 'ID';
|
|
$owner->$fieldName = 0;
|
|
$owner->write();
|
|
Director::redirect($this->Link('iframe'));
|
|
}
|
|
|
|
/**
|
|
* Flush all of the generated images.
|
|
*/
|
|
function flush() {
|
|
$images = DataObject::get("Image","");
|
|
$numItems = 0;
|
|
$num = 0;
|
|
|
|
foreach($images as $image) {
|
|
$numDeleted = $image->deleteFormattedImages();
|
|
if($numDeleted) {
|
|
$numItems++;
|
|
}
|
|
$num += $numDeleted;
|
|
}
|
|
echo $num . ' formatted images from ' . $numItems . ' items flushed';
|
|
}
|
|
|
|
|
|
/**
|
|
* Transfer all the content from the Image table into the File table.
|
|
* @deprecated This function is only used to migrate content from old databases.
|
|
*/
|
|
function transferlegacycontent() {
|
|
$images = DB::query("SELECT * FROM _obsolete_Image");
|
|
echo "<h3>Transferring images</h3>";
|
|
foreach($images as $image) {
|
|
if(($className = $image['ClassName']) && $image['Filename']) {
|
|
echo "<li>Importing $image[Filename]";
|
|
$folderName = str_replace('assets/','',dirname($image['Filename']));
|
|
$name = basename($image['Filename']);
|
|
$folderObj = Folder::findOrMake($folderName);
|
|
$fileObj = new $className();
|
|
$fileObj->Name = $name;
|
|
$fileObj->ParentID = $folderObj->ID;
|
|
$fileObj->write();
|
|
$fileObj->destroy();
|
|
|
|
echo " as $fileObj->ID";
|
|
|
|
list($baseClass,$fieldName) = explode('_',$className,2);
|
|
|
|
//if($baseClass == 'News') $baseClass = 'NewsHolder';
|
|
//if($baseClass == 'FAQ') $baseClass = 'FaqHolder';
|
|
|
|
$parentObj = DataObject::get_by_id($baseClass, $image['ParentID']);
|
|
if($parentObj && $fieldName) {
|
|
$fieldName .= "ID";
|
|
echo "<li>$parentObj->class.$parentObj->ID.$fieldName = $fileObj->ID";
|
|
$parentObj->$fieldName = $fileObj->ID;
|
|
$parentObj->write();
|
|
$parentObj->destroy();
|
|
}
|
|
|
|
// echo " and linking to $baseClass.$image[ParentID]->$fieldName";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
?>
|