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<?php
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// $Id: media.derivatives.forms.inc,v 1.2 2009/01/06 13:23:23 rhys Exp $
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/**
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* Listing of the derivatives for the media.
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*/
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function mmedia_derivatives_list_form(&$form_state, $media) {
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// make sure that it's an actual media we're loading.
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$media = media_load($media->mid);
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if (!$media) {
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drupal_not_found();
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exit();
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}
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$breadcrumbs = _mmedia_set_breadcrumb(mmedia_folder_load($media->fid));
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$breadcrumbs[] = l($media->title, MEDIA_PATH .'/'. $media->mid);
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drupal_set_breadcrumb($breadcrumbs);
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$derivatives = mapi_derivative_list_by_extension($media->ext);
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$files = mapi_generated_load(media_filename($media));
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$rows = array();
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foreach ($derivatives as $did => $name) {
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$found = array_key_exists($did, $files);
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$rows[] = array(
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l($name, MEDIA_PATH .'/'. $media->mid .'/derivatives/'. $did),
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$found && $files[$did]->override ? t('Overridden') : ($found ? t('Generated') : t('Free')),
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);
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}
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if (count($rows)) {
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$form['details'] = array(
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'#value' => t('This are the available derivatives for this media.') .
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theme('table', array(t('Derivative'), t('Status')), $rows)
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);
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}
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else {
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$form['details'] = array('#value' => t('There are no derivatives that can be generated for this media.'));
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}
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return $form;
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}
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/**
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* Derivatives media form
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*/
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function mmedia_derivatives_form(&$form_state, $media, $derivative) {
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// make sure it's a valid media file
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$media = media_load($media->mid);
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// make sure that derivative fits into this media extension.
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$derivatives = mapi_derivative_list_by_extension($media->ext);
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if (!array_key_exists($derivative->did, $derivatives)) {
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drupal_not_found();
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exit();
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}
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$breadcrumbs = _mmedia_set_breadcrumb(mmedia_folder_load($media->fid));
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$breadcrumbs[] = l($media->title, MEDIA_PATH .'/'. $media->mid);
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$breadcrumbs[] = l(t('Derivatives'), MEDIA_PATH .'/'. $media->mid .'/derivatives');
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drupal_set_breadcrumb($breadcrumbs);
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// get the details of the generated derivative
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$details = mapi_generated_details(media_filename($media), $derivative->did);
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// basic necessities for other modules to create changes
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$form['mid'] = array('#type' => 'value', '#value' => $media->mid);
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$form['did'] = array('#type' => 'value', '#value' => $derivative->did);
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if ($details) {
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$form['preview'] = array('#value' => '<div class="media-derivative-preview">'. mapi_display($details['filename'], array('profile' => NULL)) .'</div>');
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}
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else {
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$form['preview'] = array('#value' => '<div>'. t('There is no generated derivative for this media.') .'</div>');
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}
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// delete derivative
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$form['delete'] = array('#type' => 'submit', '#value' => t('Delete Derivative'));
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// force generation of derivative
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$form['force'] = array('#type' => 'submit', '#value' => t('Force Generation'));
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// upload replacement
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$form['upload'] = array('#type' => 'submit', '#value' => t('Replace via Upload'));
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return $form;
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}
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/**
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* Submission of media derivatives form.
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*/
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function mmedia_derivatives_form_submit($form, &$form_state) {
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$values = $form_state['values'];
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switch ($values['op']) {
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case t('Replace via Upload'):
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drupal_goto(MEDIA_PATH .'/'. $values['mid'] .'/derivatives/'. $values['did'] .'/upload');
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exit();
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break;
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// deletes the derivative
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case t('Delete Derivative'):
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$media = media_load($values['mid']);
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mapi_generated_delete(media_filename($media), $values['did']);
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break;
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// forces a regeneration of the file if necessary
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case t('Force Generation'):
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$media = media_load($values['mid']);
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$derivative = mapi_derivative_name($values['did']);
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// check for already generated file, replace it.
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$filename = NULL;
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if ($generated = mapi_generated_details(media_filename($media), $derivative->did)) {
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$filename = $generated['filename'];
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}
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// generates the derivative
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mapi_derive(media_filename($media), $derivative, array('filename' => $filename, 'exists' => FILE_EXISTS_REPLACE));
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break;
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}
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}
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/**
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* Upload capability for individual derivative media modification.
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*/
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function mmedia_derivatives_upload_form(&$form_state, $media, $derivative) {
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$media = media_load($media->mid);
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$breadcrumbs = _mmedia_set_breadcrumb(mmedia_folder_load($media->fid));
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$breadcrumbs[] = l($media->title, MEDIA_PATH .'/'. $media->mid);
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$breadcrumbs[] = l(t('Derivatives'), MEDIA_PATH .'/'. $media->mid .'/derivatives');
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drupal_set_breadcrumb($breadcrumbs);
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$form['mid'] = array('#type' => 'value', '#value' => $media->mid);
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$form['did'] = array('#type' => 'value', '#value' => $derivative->did);
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$form['ext'] = array('#type' => 'value', '#value' => $derivative->output);
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// handle the processing of the media form...
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$form['media'] = array(
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'#type' => 'file',
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'#title' => t('Upload'),
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'#description' => t('Select a file to upload.') .' '. t('Must have the extension %ext.', array('%ext' => $derivative->output)),
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);
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// uploadable form
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$form['#attributes'] = array('enctype' => 'multipart/form-data');
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$form['submit'] = array('#type' => 'submit', '#value' => t('Upload'));
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return $form;
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}
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/**
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* Validate the upload form.
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*/
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function mmedia_derivatives_upload_form_validate($form, &$form_state) {
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if ($file = file_save_upload('media', array(), file_directory_temp())) {
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// validate that the file is correct
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if (mapi_file_ext($file->filepath) != $form_state['values']['ext']) {
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file_delete($file->filepath);
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form_set_error('media', t('File does not have a valid extension. It must be (%ext).', array('%ext' => $form_state['values']['ext'])));
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}
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// store if correct
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else {
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// we are able to generate the file that is supposed to be at this location.
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$filename = media_filename(media_load($form_state['values']['mid']));
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$gen = mapi_generated_details($filename, $form_state['values']['did']);
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if ($gen && !media_compare_files($file->filepath, $gen['filename'], array('width', 'height'))) {
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file_delete($file->filepath);
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form_set_error('media', t('File does not match require generated settings.'));
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return;
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}
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$form_state['storage']['gen'] = $gen['filename'];
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$form_state['storage']['source'] = $filename;
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$form_state['storage']['file'] = $file;
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}
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}
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else {
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form_set_message('', t('No file uploaded'));
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}
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}
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/**
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* Submission of mmedia_derivatives_form().
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*/
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function mmedia_derivatives_upload_form_submit($form, &$form_state) {
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$values = $form_state['values'];
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$storage = $form_state['storage'];
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unset($form_state['storage']);
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// overwrite the generated file in the system settings.
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if ($storage['gen']) {
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if (!($filename = mapi_file_copy($storage['file']->filepath, $storage['gen'], array('replace' => FILE_EXISTS_REPLACE, 'workspace' => 'mmedia')))) {
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file_delete($storage['file']->filepath);
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drupal_set_message(t('Unable to move updated file to filename (%filename).', array('%filename' => $storage['gen'])), 'error');
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return;
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}
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file_delete($storage['file']->filepath);
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}
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// otherwise just move it to the correct location, with an appropriate rename.
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else {
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$temp = mapi_file_path($storage['source']) . mapi_file_name($storage['source']) .'-'. $values['did'] .'.'. $values['ext'];
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drupal_set_message($temp .' = '. is_file($temp));
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if (!($filename = mapi_file_move($storage['file']->filepath, $temp, array('replace' => FILE_EXISTS_RENAME, 'workspace' => 'mmedia')))) {
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file_delete($storage['file']->filepath);
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drupal_set_message(t('Unable to move updated file to filename (%filename).', array('%filename' => $temp)), 'error');
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return;
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}
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drupal_set_message($filename);
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}
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// rebuild the mapi_generated settings
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mapi_generated_override($storage['source'], $values['did'], $filename);
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$form_state['redirect'] = MEDIA_PATH .'/'. $values['mid'] .'/derivatives/'. $values['did'];
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}
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