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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * An extension to automatically regenerate all cached/resampled images when an  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * image version is changed.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package silverstripe-versionedfiles  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                class VersionedImageExtension extends DataExtension  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Regenerates all cached images if the version number has been changed.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function onBeforeWrite()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!$this->owner->isChanged('CurrentVersionID')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Support new {@see Image::regenerateFormattedImages} method in 3.2 | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->owner->hasMethod('regenerateFormattedImages')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->owner->regenerateFormattedImages();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->owner->ParentID) { | 
            
                            
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                            $base = $this->owner->Parent()->getFullPath();  | 
            
                            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $base = ASSETS_PATH . '/';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $resampled = "{$base}_resampled"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!is_dir($resampled)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $files    = scandir($resampled);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $iterator = new ArrayIterator($files);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $filter   = new RegexIterator(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $iterator,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            sprintf(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                "/([a-z]+)([0-9]?[0-9a-f]*)-%s/i",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                preg_quote($this->owner->Name)  | 
            
                            
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                            ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            RegexIterator::GET_MATCH  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // grab each resampled image and regenerate it  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($filter as $cachedImage) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $path      = "$resampled/{$cachedImage[0]}"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            //skip resampled image files that don't exist  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!file_exists($path)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                continue;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $size      = getimagesize($path);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $method    = $cachedImage[1];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $arguments = $cachedImage[2];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            unlink($path);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // Determine the arguments used to generate an image, and regenerate  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // it. Different methods need different ways of determining the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // original arguments used.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            switch (strtolower($method)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'paddedimage':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $color = preg_replace("/^{$size[0]}{$size[1]}/", '', $arguments); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $this->owner->$method($size[0], $size[1], $color);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'resizedimage':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'setsize':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'croppedimage':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'setratiosize':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'croppedfocusedimage':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $this->owner->$method($size[0], $size[1]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'setwidth':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $this->owner->$method($size[0]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case 'setheight':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $this->owner->$method($size[1]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                default:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $this->owner->$method($arguments);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.
If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.