islandora_datastreams_io.module

<?php

// Permissions.
define('ISLANDORA_DATASTREAMS_IO', 'datastreams input output');
define('ISLANDORA_DATASTREAMS_IO_EXPORT', 'datastreams output');
define('ISLANDORA_DATASTREAMS_IO_IMPORT', 'datastreams input');

// pids_fetch_methods:
define('ISLANDORA_DATASTREAMS_IO_FETCH_LISTPIDS', 0);
define('ISLANDORA_DATASTREAMS_IO_FETCH_SOLR', 1);
define('ISLANDORA_DATASTREAMS_IO_FETCH_COLLECTION', 2);
define('ISLANDORA_DATASTREAMS_IO_FETCH_MODEL', 3);

/**
 * Implements hook_menu().
 */
function islandora_datastreams_io_menu() {
  return array(
    'admin/islandora/datastreams_io' => array(
      'title' => 'Islandora Datastreams Input/Output & Object Relationships',
      'description' => 'Settings for the Islandora Datastreams Input/Output & Object Relationships module.',
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'drupal_get_form',
      'page arguments' => array('islandora_datastreams_io_admin_form'),
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO),
      'file' => 'includes/admin.form.inc',
    ),
    'admin/islandora/datastreams_io/export' => array(
      'title' => t('Export Datastreams'),
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'drupal_get_form',
      'page arguments' => array('islandora_datastreams_io_export_form'),
      'file' => 'includes/export.form.inc',
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO_EXPORT),
    ),
    // ZIP file download handler
    'admin/islandora/datastreams_io/download_export/%' => array(
      'title' => t('Download export'),
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'islandora_datastreams_io_download_export',
      'page arguments' => array(4),
      'file' => 'includes/download_export.inc',
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO_EXPORT),
    ),
    'admin/islandora/datastreams_io/import' => array(
      'title' => t('Import Datastreams'),
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'drupal_get_form',
      'page arguments' => array('islandora_datastreams_io_import_form'),
      'file' => 'includes/import.form.inc',
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO_IMPORT),
    ),
    'admin/islandora/datastreams_io/relationships' => array(
      'title' => t('Object Relationships'),
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'drupal_get_form',
      'page arguments' => array('islandora_datastreams_io_relationships_form'),
      'file' => 'includes/relationships.form.inc',
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO_IMPORT),
    ),
    'admin/islandora/datastreams_io/transform' => array(
      'title' => t('Transform Datastreams'),
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'drupal_get_form',
      'page arguments' => array('islandora_datastreams_io_transform_form'),
      'file' => 'includes/transform.form.inc',
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO_IMPORT),
    ),
    'admin/islandora/datastreams_io/update_label' => array(
      'title' => t('Update Object label from MODS titleInfo/title'),
      'type' => MENU_NORMAL_ITEM,
      'page callback' => 'drupal_get_form',
      'page arguments' => array('islandora_datastreams_io_update_label_form'),
      'file' => 'includes/update_label.form.inc',
      'access arguments' => array(ISLANDORA_DATASTREAMS_IO_EXPORT),
    ),
  );
}

/**
 * Implements hook_permission().
 */
function islandora_datastreams_io_permission() {
  return array(
    ISLANDORA_DATASTREAMS_IO => array(
      'title' => t('Use the datastreams import and export tool'),
      'description' => t('User can import / export selected datastreams per ' .
        'collection, model type, Solr query (if installed), or by list of PID values.'),
    ),
    ISLANDORA_DATASTREAMS_IO_EXPORT => array(
      'title' => t('Use to export object datastreams.'),
      'description' => t('User can export selected objects\' datastreams.'),
    ),
    ISLANDORA_DATASTREAMS_IO_IMPORT => array(
      'title' => t('Use the import object datastreams.'),
      'description' => t('User can import selected objects\' datastreams.'),
    ),
  );
}

/**
 * Implements hook_presprocess_theme().
 *
 * This code will add the javascript if on a datastreams_io page.
 */
function islandora_datastreams_io_preprocess_page(&$vars) {
  $item = menu_get_item();
  if (is_array($item)) {
    $path = drupal_get_path('module', 'islandora_datastreams_io');
    if ($item['path'] == 'admin/islandora/datastreams_io/export/batch/%' ||
        $item['path'] == 'admin/islandora/datastreams_io/export' ||
        $item['path'] == 'admin/islandora/datastreams_io/relationships' ||
        $item['path'] == 'admin/islandora/datastreams_io/transform' ||
        $item['path'] == 'admin/islandora/datastreams_io/update_label' ||
        $item['path'] == 'admin/islandora/datastreams_io/delete_datastreams') {
      drupal_add_js($path . '/js/batch_functions.js');
      drupal_add_css($path . '/css/datastreams_io.css');
    }
    elseif ($item['path'] == 'admin/islandora/datastreams_io') {
      drupal_add_js($path . '/js/admin_functions.js');
    }
  }
}

/** 
 * Helper function that will populate the PIDS and PIDS fetch method for the export form.
 * This is intended to be called from units that want to pre-populate and use the export form.
 *
 * The allowable fetch methods are:
 *   define('ISLANDORA_DATASTREAMS_IO_FETCH_SOLR', 0);
   define('ISLANDORA_DATASTREAMS_IO_FETCH_LISTPIDS', 1);
   define('ISLANDORA_DATASTREAMS_IO_FETCH_COLLECTION', 2);
   define('ISLANDORA_DATASTREAMS_IO_FETCH_MODEL', 3);
 */
function islandora_datastreams_io_pids_to_export_form($pids_value, $pids_fetch_method) {
  $_SESSION['pids_value'] = json_encode($pids_value);
  $_SESSION['pids_fetch_method'] = $pids_fetch_method;
  drupal_goto('/admin/islandora/datastreams_io/export');
}