/** * Writes the provided data to the file * * Requires all previous data to be stored in memory if inside a * transaction, use with caution on large files! * * If a filesystem transaction is in progress and is rolled back, the * previous data will be restored. * * @param mixed $data The data to write to the file * @return fFile The file object, to allow for method chaining */ public function write($data) { $this->tossIfDeleted(); if (!$this->isWritable()) { throw new fEnvironmentException('This file, %s, can not be written to because it is not writable', $this->file); } // Allow filesystem transactions if (fFilesystem::isInsideTransaction()) { fFilesystem::recordWrite($this); } file_put_contents($this->file, $data); return $this; }
/** * Saves any changes to the image * * If the file type is different than the current one, removes the current * file once the new one is created. * * This operation will be reverted by a filesystem transaction being rolled * back. If a transaction is in progress and the new image type causes a * new file to be created, the old file will not be deleted until the * transaction is committed. * * @param string $new_image_type The new file format for the image: 'NULL` (no change), `'jpg'`, `'gif'`, `'png'` * @param integer $jpeg_quality The quality setting to use for JPEG images - this may be ommitted * @param boolean $overwrite If an existing file with the same name and extension should be overwritten * @param string :$new_image_type * @param boolean :$overwrite * @return fImage The image object, to allow for method chaining */ public function saveChanges($new_image_type = NULL, $jpeg_quality = 90, $overwrite = FALSE) { // This allows ommitting the $jpeg_quality parameter, which is very useful for non-jpegs $args = func_get_args(); if (count($args) == 2 && is_bool($args[1])) { $overwrite = $args[1]; $jpeg_quality = 90; } $this->tossIfDeleted(); self::determineProcessor(); if (self::$processor == 'none') { throw new fEnvironmentException("The changes to the image can't be saved because neither the GD extension or ImageMagick appears to be installed on the server"); } $type = self::getImageType($this->file); if ($type == 'tif' && self::$processor == 'gd') { throw new fEnvironmentException('The image specified, %s, is a TIFF file and the GD extension can not handle TIFF files. Please install ImageMagick if you wish to manipulate TIFF files.', $this->file); } $valid_image_types = array('jpg', 'gif', 'png'); if ($new_image_type !== NULL && !in_array($new_image_type, $valid_image_types)) { throw new fProgrammerException('The new image type specified, %1$s, is invalid. Must be one of: %2$s.', $new_image_type, join(', ', $valid_image_types)); } if (is_numeric($jpeg_quality)) { $jpeg_quality = (int) round($jpeg_quality); } if (!is_integer($jpeg_quality) || $jpeg_quality < 1 || $jpeg_quality > 100) { throw new fProgrammerException('The JPEG quality specified, %1$s, is either not an integer, less than %2$s or greater than %3$s.', $jpeg_quality, 1, 100); } if ($new_image_type && fFilesystem::getPathInfo($this->file, 'extension') != $new_image_type) { if ($overwrite) { $path_info = fFilesystem::getPathInfo($this->file); $output_file = $path_info['dirname'] . $path_info['filename'] . '.' . $new_image_type; } else { $output_file = fFilesystem::makeUniqueName($this->file, $new_image_type); } if (file_exists($output_file)) { if (!is_writable($output_file)) { throw new fEnvironmentException('Changes to the image can not be saved because the file, %s, is not writable', $output_file); } } else { $output_dir = dirname($output_file); if (!is_writable($output_dir)) { throw new fEnvironmentException('Changes to the image can not be saved because the directory to save the new file, %s, is not writable', $output_dir); } } } else { $output_file = $this->file; if (!is_writable($output_file)) { throw new fEnvironmentException('Changes to the image can not be saved because the file, %s, is not writable', $output_file); } } // If we don't have any changes and no name change, just exit if (!$this->pending_modifications && $output_file == $this->file) { return $this; } // Wrap changes to the image into the filesystem transaction if ($output_file == $this->file && fFilesystem::isInsideTransaction()) { fFilesystem::recordWrite($this); } if (self::$processor == 'gd') { $this->processWithGD($output_file, $jpeg_quality); } elseif (self::$processor == 'imagemagick') { $this->processWithImageMagick($output_file, $jpeg_quality); } $old_file = $this->file; fFilesystem::updateFilenameMap($this->file, $output_file); // If we created a new image, delete the old one if ($output_file != $old_file) { $old_image = new fImage($old_file); $old_image->delete(); } $this->pending_modifications = array(); return $this; }