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231 lines
8.2 KiB
231 lines
8.2 KiB
<?php |
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/** |
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* @file |
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* Functions for generating/validating/submitting the add datastream form. |
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*/ |
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/** |
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* The admin add datastream form. |
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* |
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* @param array $form |
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* The Drupal form. |
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* @param array $form_state |
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* The Drupal form state. |
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* @param AbstractObject $object |
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* The object to be deleted. |
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* |
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* @return array |
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* The drupal form definition. |
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*/ |
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function islandora_add_datastream_form(array $form, array &$form_state, AbstractObject $object) { |
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module_load_include('inc', 'islandora', 'includes/content_model'); |
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module_load_include('inc', 'islandora', 'includes/utilities'); |
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form_load_include($form_state, 'inc', 'islandora', 'includes/add_datastream.form'); |
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$form_state['object'] = $object; |
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$form_state['datastream_requirements'] = islandora_get_missing_datastreams_requirements($object); |
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$unused_datastreams = array_keys($form_state['datastream_requirements']); |
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$unused_datastreams = "'" . implode("', '", $unused_datastreams) . "'"; |
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$upload_size = min((int) ini_get('post_max_size'), (int) ini_get('upload_max_filesize')); |
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return array( |
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'#redirect' => "islandora/object/{$object->id}", |
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'#attributes' => array( |
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'enctype' => 'multipart/form-data', |
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), |
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'dsid_fieldset' => array( |
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'#type' => 'fieldset', |
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'#title' => 'Add a datastream', |
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'#collapsible' => FALSE, |
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'#collapsed' => FALSE, |
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'dsid' => array( |
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'#title' => 'Datastream ID', |
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'#description' => t("An ID for this stream that is unique to this object. Must start with a letter and contain only alphanumeric characters, dashes and underscores. The following datastreams are defined by this content model but don't currently exist: <b>@unused_dsids</b>.", array('@unused_dsids' => $unused_datastreams)), |
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'#type' => 'textfield', |
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'#size' => 64, |
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'#maxlength' => 64, |
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'#required' => TRUE, |
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'#element_validate' => array( |
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'islandora_add_datastream_form_field_is_not_an_existing_datastream_id', |
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'islandora_add_datastream_form_field_starts_with_a_letter', |
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'islandora_add_datastream_form_field_is_valid_dsid', |
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), |
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'#autocomplete_path' => "islandora/object/{$object->id}/manage/datastreams/add/autocomplete", |
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), |
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'label' => array( |
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'#title' => 'Datastream Label', |
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'#required' => TRUE, |
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'#size' => 64, |
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'#maxlength' => 64, |
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'#description' => t('A human-readable label'), |
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'#type' => 'textfield', |
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'#element_validate' => array('islandora_add_datastream_form_field_does_not_contain_a_forward_slash'), |
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), |
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'file' => array( |
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'#type' => 'managed_file', |
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'#required' => TRUE, |
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'#title' => t('Upload Document'), |
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'#size' => 48, |
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'#description' => t('Select a file to upload.<br/>Files must be less than <b>@size MB.</b>', array('@size' => $upload_size)), |
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'#default_value' => isset($form_state['values']['files']) ? $form_state['values']['files'] : NULL, |
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'#upload_location' => 'temporary://', |
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'#upload_validators' => array( |
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'file_validate_extensions' => array(NULL), |
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// Assume its specified in MB. |
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'file_validate_size' => array($upload_size * 1024 * 1024), |
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), |
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), |
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'submit' => array( |
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'#type' => 'submit', |
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'#value' => t('Add Datastream'), |
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), |
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), |
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); |
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} |
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/** |
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* Checks if the given form field doesn't already repersent a Datastream ID. |
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* |
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* @param array $element |
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* The form field to check. |
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* @param array $form_state |
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* The Drupal form state. |
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* @param array $form |
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* The Drupal form. |
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*/ |
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function islandora_add_datastream_form_field_is_not_an_existing_datastream_id(array $element, array &$form_state, array $form) { |
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if (isset($form_state['object'][$element['#value']])) { |
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form_error($element, t("@title already exists in the object.", array('@title' => $element['#title']))); |
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} |
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} |
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/** |
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* Checks if the given form field starts with a letter. |
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* |
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* @param array $element |
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* The form field to check. |
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* @param array $form_state |
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* The Drupal form state. |
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* @param array $form |
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* The Drupal form. |
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*/ |
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function islandora_add_datastream_form_field_starts_with_a_letter(array $element, array &$form_state, array $form) { |
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if (!(preg_match("/^[a-zA-Z]/", $element['#value']))) { |
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form_error($element, t("@title has to start with a letter.", array('@title' => $element['#title']))); |
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} |
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} |
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/** |
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* Checks if the given form field contains a valid datastream ID. |
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* |
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* @param array $element |
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* The form field to check. |
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* @param array $form_state |
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* The Drupal form state. |
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* @param array $form |
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* The Drupal form. |
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*/ |
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function islandora_add_datastream_form_field_is_valid_dsid(array $element, array &$form_state, array $form) { |
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module_load_include('inc', 'islandora', 'includes/utilities'); |
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if (!islandora_is_valid_dsid($element['#value'])) { |
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form_error($element, t("@title contains invalid characters.", array('@title' => $element['#title']))); |
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} |
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} |
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/** |
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* Checks if the given form field contains a "/" character. |
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* |
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* @param array $element |
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* The form field to check. |
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* @param array $form_state |
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* The Drupal form state. |
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* @param array $form |
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* The Drupal form. |
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*/ |
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function islandora_add_datastream_form_field_does_not_contain_a_forward_slash(array $element, array &$form_state, array $form) { |
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if (strpos($element['#value'], '/') !== FALSE) { |
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form_error($element, t('@title cannot contain a "/" character.', array('@title' => $element['#title']))); |
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} |
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} |
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/** |
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* Checks if the given datastream requires the upload to be a certain MIME type. |
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* |
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* @param array $form |
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* The Drupal form. |
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* @param array $form_state |
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* The Drupal form state. |
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*/ |
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function islandora_add_datastream_form_validate(array $form, array &$form_state) { |
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$file = file_load($form_state['values']['file']); |
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$dsid = $form_state['values']['dsid']; |
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if (isset($form_state['datastream_requirements'][$dsid]) && $file) { |
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$allowed_types = $form_state['datastream_requirements'][$dsid]['mime']; |
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$mime_detect = new MimeDetect(); |
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$allowed_extensions = array(); |
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foreach ($allowed_types as $mime) { |
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$allowed_extensions = array_merge($allowed_extensions, $mime_detect->getValidExtensions($mime)); |
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} |
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$errors = file_validate_extensions($file, implode(' ', $allowed_extensions)); |
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if (count($errors) > 0) { |
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form_set_error('file', $errors[0]); |
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} |
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} |
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} |
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/** |
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* Adds the new datastream based on the submitted values. |
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* |
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* Only creates managed datastreams at the moment. |
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* |
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* @param array $form |
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* The Drupal form. |
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* @param array $form_state |
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* The Drupal form state. |
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*/ |
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function islandora_add_datastream_form_submit(array $form, array &$form_state) { |
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$object = $form_state['object']; |
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$form_state['redirect'] = "islandora/object/{$object->id}"; |
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$file = file_load($form_state['values']['file']); |
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try { |
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$ds = $object->constructDatastream($form_state['values']['dsid'], 'M'); |
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$ds->label = $form_state['values']['label']; |
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$ds->mimetype = $file->filemime; |
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$path = drupal_realpath($file->uri); |
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$ds->setContentFromFile($path); |
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$object->ingestDatastream($ds); |
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file_delete($file); |
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} |
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catch (exception $e) { |
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drupal_set_message(t('@message', array('@message' => check_plain($e->getMessage()))), 'error'); |
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// Make sure to delete anyways. |
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file_delete($file); |
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return; |
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} |
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drupal_set_message(t("Successfully Added Datastream!")); |
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} |
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/** |
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* Callback for an autocomplete field in the admin add datastream form. |
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* |
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* It lists the missing required (may be optional) datastreams. |
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* |
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* @param AbstractObject $object |
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* The object used to check for missing required datastreams used to populate |
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* the options in this callback. |
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* @param string $query |
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* vThe user query to match against the missing required datastreams. |
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*/ |
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function islandora_add_datastream_form_autocomplete_callback(AbstractObject $object, $query = '') { |
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module_load_include('inc', 'islandora', 'includes/content_model'); |
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module_load_include('inc', 'islandora', 'includes/utilities'); |
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$dsids = array_keys(islandora_get_missing_datastreams_requirements($object)); |
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$dsids = array_combine($dsids, $dsids); |
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$query = trim($query); |
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if (!empty($query)) { |
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$filter = function($id) use($query) { |
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return stripos($id, $query) !== FALSE; |
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}; |
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$dsids = array_filter($dsids, $filter); |
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} |
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drupal_json_output($dsids); |
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}
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