agile_lcp.module

<?php
/**
 * @file
 * Module hooks.
 */

/**
 * Implements hook_menu().
 */
function agile_lcp_menu() {
  return array(
    'agile/harvest/oai' => array(
      'title' => 'Harvest from OAI',
      'page callback' => 'drupal_get_form',
      'page arguments' => array('agile_lcp_harvest_form'),
      'type' => MENU_NORMAL_ITEM,
      'file' => 'includes/harvest_form.inc',
      'access arguments' => array('ingest fedora objects'),
    ),
    'agile/prep/oai' => array(
      'title' => 'Prep OAI HArvest',
      'page callback' => 'drupal_get_form',
      'page arguments' => array('agile_lcp_prep_harvest'),
      'type' => MENU_NORMAL_ITEM,
      'file' => 'includes/harvest_prep.form.inc',
      'access arguments' => array('ingest fedora objects'),
    ),
    'admin/islandora/solution_pack_config/lcp' => array(
      'title' => 'LCP Configuration',
      'description' => 'Configure the LCP module.',
      'page callback' => 'drupal_get_form',
      'access arguments' => array('administer site configuration'),
      'page arguments' => array('agile_lcp_admin_settings_form'),
      'file' => 'includes/admin.form.inc',
      'type' => MENU_NORMAL_ITEM,
    ),

   'islandora/object/%islandora_object/manage/datastreams/updatemxml' =>array(
      'title' => 'Update MarcXML',
      'file' => 'includes/marc_reingest.form.inc',
      'page callback' => 'drupal_get_form',
      'page arguments' => array('agile_reingest_marc_form', 2),
      'type' => MENU_LOCAL_ACTION,
      'access callback' => 'islandora_object_access_callback',
      'access arguments' => array(ISLANDORA_ADD_DS, 2),
    ),
  );
}

/**
 * Implements hook_islandora_required_objects().
 */
function agile_lcp_islandora_required_objects(IslandoraTuque $connection) {
  $module_path = drupal_get_path('module', 'agile_lcp');
  // IOA Import Content Model.
  $oai_content_model = $connection->repository->constructObject('islandora:oai_importCModel');
  $oai_content_model->owner = 'fedoraAdmin';
  $oai_content_model->label = 'Agile OAI Import Content Model';
  $oai_content_model->models = 'fedora-system:ContentModel-3.0';
  // DS-COMPOSITE-MODEL Datastream.
  $datastream = $oai_content_model->constructDatastream('DS-COMPOSITE-MODEL', 'X');
  $datastream->label = 'DS-COMPOSITE-MODEL';
  $datastream->mimetype = 'application/xml';
  $datastream->setContentFromFile("$module_path/xml/islandora_OAI_importCmodel_ds_composite_model.xml", FALSE);
  $oai_content_model->ingestDatastream($datastream);
  // Record Collection.
  $oai_collection = $connection->repository->constructObject('islandora:imported_oai');
  $oai_collection->owner = 'fedoraAdmin';
  $oai_collection->label = 'Imported from OAI';
  $oai_collection->models = 'islandora:collectionCModel';
  // Collection Policy Datastream.
  $datastream = $oai_collection->constructDatastream('COLLECTION_POLICY', 'X');
  $datastream->label = 'Collection policy';
  $datastream->mimetype = 'application/xml';
  $datastream->setContentFromFile("$module_path/xml/agile_oai_import_collection_policy.xml", FALSE);
  $oai_collection->ingestDatastream($datastream);
  // TN Datastream.
  $datastream = $oai_collection->constructDatastream('TN', 'M');
  $datastream->label = 'Thumbnail';
  $datastream->mimetype = 'image/png';
  $datastream->setContentFromFile("$module_path/images/folder.png", FALSE);
  $oai_collection->ingestDatastream($datastream);
  return array(
    'agile_lcp' => array(
      'title' => 'OAI IMport',
      'objects' => array(
        $oai_content_model,
        $oai_collection,
      ),
    ),
  );
}

/**
 * Implements hook_islandora_solr_results_alter().
 */
function agile_lcp_islandora_solr_results_alter(&$search_results, $query_processor) {
  $matches = array();
  $identifiers = array();
  $doubles = array();
  foreach ($search_results as $index => &$result) {
    if ($result['solr_doc'] && isset($result['content_models'])) {
      if (isset($result['solr_doc']['mods_recordInfo_recordIdentifier_s'])) {
        $identifier = $result['solr_doc']['mods_recordInfo_recordIdentifier_s'];
        $identifiers[$index] = $identifier;
        $is_oai = in_array('info:fedora/islandora:oai_importCModel', $result['content_models']);
        $pairings[$index] = array('identifier' => $identifier, 'oai' => $is_oai);

        $matches[] = $identifier;
        if ($is_oai) {
          $result['solr_doc']['mods_recordInfo_recordIdentifier_s'] = l('View item record in the book catalog' /* $identifier */, "http://pacscl.exlibrisgroup.com:48992/F?func=direct&doc_number=$identifier");
          $result['object_url'] = "http://pacscl.exlibrisgroup.com:48992/F?func=direct&doc_number=$identifier";
        }
        else {
          unset($result['solr_doc']['mods_recordInfo_recordIdentifier_s']);
          $result['solr_doc']['mods_recordInfo_recordIdentifier_s'] = l('View item record in the book catalog' /* $identifier */, "http://pacscl.exlibrisgroup.com:48992/F?func=direct&doc_number=$identifier");
        }
      }
      if (isset($result['solr_doc']['dc.description'])) {
        $is_collection = in_array('info:fedora/islandora:collectionCModel', $result['content_models']);
        /* We only want to display the description field on collection records. Remove it from the results of other content models. */
        if (!$is_collection) {
          unset($result['solr_doc']['dc.description']);
        }
      }
    }
  }
  $values = array_count_values($identifiers);
  foreach ($values as $identifier => $count) {
    if ($count > 1) {
      $doubles[] = $identifier;
    }
  }

/*  if ($doubles) {
    foreach ($doubles as $index => $identifier) {
      if (in_array($identifier, $doubles)) {
        foreach ($pairings as $key => $params) {
          if ($params['oai']) {
            unset($search_results[$key]);
          }
        }
      }
    }
  }*/
  $search_results = array_values($search_results);
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function agile_lcp_form_islandora_solr_simple_search_form_alter(&$form, &$form_state, $form_id) {
  $options = array(
    'all' => t("All"),
    'digital' => t("Digital Collections"),
    'catalog' => t('Library Catalog'),
  );
  $form['search_choice'] = array(
    '#weight' => -10,
    '#type' => 'select',
    '#options' => $options,
  );

  $form['#submit'] = array('agile_lcp_simple_search_submit');
}

/**
 * Altered submit form for Islandora Simple Search.
 */
function agile_lcp_simple_search_submit($form, &$form_state) {
  module_load_include('inc', 'islandora_solr', 'includes/utilities');
  $search_string = islandora_solr_replace_slashes($form_state['values']['islandora_simple_search_query']);
  switch ($form_state['values']['search_choice']) {
    case 'digital':
      $filter_val = '-RELS_EXT_hasModel_uri_s:"info\:fedora\/islandora\:oai_importCModel"';
      break;

    case 'catalog':
      $filter_val = 'RELS_EXT_hasModel_uri_s:"info\:fedora\/islandora\:oai_importCModel"';
      break;

    default;
      $filter_val = NULL;
  }
  $query = array('type' => 'edismax');
  if ($filter_val) {
    $query['f'] = array($filter_val);
  }
  $form_state['redirect'] = array(
    "islandora/search/$search_string",
    array(
      'query' => $query,
    ),
  );
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function agile_lcp_form_islandora_solr_advanced_search_form_alter_disabled(&$form, &$form_state, $form_id) {
  $options = array(
    'all' => t("All"),
    'digital' => t("Digital Collections"),
    'catalog' => t('Library Catalog'),
  );
  $form['search_choice'] = array(
    '#weight' => -10,
    '#type' => 'select',
    '#options' => $options,
  );

  $form['#submit'] = array('agile_lcp_advanced_search_submit');
}

/**
 * Islandora Solr advanced search form submit callback.
 *
 * @param array $form
 *   An associative array containing form structure.
 * @param array $form_state
 *   An associative array containing form state.
 *
 * @see islandora_solr_advanced_search_form()
 */
function agile_lcp_advanced_search_submit($form, &$form_state) {
  module_load_include('inc', 'islandora_solr', 'includes/utilities');

  // Collect query values.
  $query_array = array();

  // Get Lucene syntax escaping configuration, prior to the following
  // foreach loop.
  $lucene_syntax_escape = variable_get('islandora_solr_advanced_search_block_lucene_syntax_escape', FALSE);
  $lucene_regex = variable_get(
      'islandora_solr_advanced_search_block_lucene_regex_default', ISLANDORA_SOLR_QUERY_FACET_LUCENE_ESCAPE_REGEX_DEFAULT
  );

  foreach ($form_state['values']['terms'] as $term) {
    $field = islandora_solr_lesser_escape($term['field']);
    $search = trim($term['search']);

    $boolean = (isset($term['boolean'])) ? $term['boolean'] : variable_get('islandora_solr_search_boolean', 'user');

    // Add query.
    if (!empty($search)) {
      $search = $lucene_syntax_escape ?
          islandora_solr_facet_query_escape($search, $lucene_regex) :
          islandora_solr_lesser_escape($search);

      $query_array[] = array(
        'search' => "$field:($search)",
        'boolean' => $boolean,
      );
    }
  }

  // Create query.
  $query = '';
  $i = 0;
  foreach ($query_array as $term) {
    $query .= $term['search'];
    if (count($query_array) - 1 != $i) {
      $query .= ' ' . $term['boolean'] . ' ';
    }
    $i++;
  }

  // Check if query is empty.
  if (empty($query)) {
    if (variable_get('islandora_solr_base_advanced', FALSE)) {
      $query = variable_get('islandora_solr_base_query', '*:*');
    }
    else {
      $query = '*:*';
    }
  }

  // Handle filters.
  $filter = '';
  if (isset($form_state['values']['islandora_solr_allow_preserve_filters']) && $form_state['values']['islandora_solr_allow_preserve_filters']) {
    $filter = isset($_GET['f']) ? $_GET['f'] : '';
  }
  switch ($form_state['values']['search_choice']) {
    case 'digital':
      $filter_val = '-RELS_EXT_hasModel_uri_s:"info\:fedora\/islandora\:oai_importCModel"';
      break;

    case 'catalog':
      $filter_val = 'RELS_EXT_hasModel_uri_s:"info\:fedora\/islandora\:oai_importCModel"';
      break;

    default;
      $filter_val = NULL;
  }
  if ($filter_val) {
    if ($filter) {
      $filter[] = $filter_val;
    }
    else {
      $filter = array($filter_val);
    }
  }
  // Use work around for some special URL characters.
  $query = islandora_solr_replace_slashes($query);

  // Navigate to results page.
  $form_state['redirect'] = array(
    ISLANDORA_SOLR_SEARCH_PATH . "/$query",
    $filter ? array('query' => array('f' => $filter)) : array(),
  );
}

/**
 * Implements hook_form_alter().
 */
function agile_lcp_form_islandora_collection_search_form_alter(&$form, &$form_state, $form_id) {
  $search_node = variable_get('agile_lcp_search_node_id', '31');
  if ($_GET['q'] == 'islandora/object/islandora:discovery' || current_path() == "node/$search_node") {
    $options = array(
      'all' => t("All Collections"),
      'islandora:root' => t("Digital Collections"),
      'islandora:imported_oai' => t('Library Catalog'),
    );
    $form['simple']['collection_select']['#type'] = 'radios';
    $form['simple']['collection_select']['#options'] = $options;
    $form['simple']['collection_select']['#default_value'] = 'all';
    $form['simple']['discovery']['#type'] = 'hidden';
    $form['simple']['discovery']['#value'] = '1';
    unset($form['simple']['#attributes']);
  }
}

/**
 * Implements hook_CMODEL_PID_islandora_derivative().
 */
function agile_lcp_islandora_oai_importCModel_islandora_derivative() {
  return array(
    array(
      'source_dsid' => 'MARC',
      'destination_dsid' => 'MODS',
      'weight' => '0',
      'function' => array(
        'agile_lcp_create_derived_streams',
      ),
      'file' => drupal_get_path('module', 'agile_lcp') . '/includes/derivatives.inc',
    ),
  );
}

/**
 * Implements hook_preprocess().
 */
function agile_lcp_preprocess_islandora_solr_grid(&$variables) {
  agile_lcp_prepare_solr($variables);
}

/**
 * Implements hook_process().
 */
function agile_lcp_process_islandora_solr(&$variables) {
  agile_lcp_prepare_solr($variables);
}

/**
 * Preps variables for process and preprocess hooks.
 */
function agile_lcp_prepare_solr(&$variables) {
  module_load_include('inc', 'islandora_default_thumbs', 'includes/utilities');
  islandora_default_thumbs_prepare_vars_for_solr_page_template($variables, 'results', 'search');
  foreach ($variables['results'] as &$result) {
    if (isset($variables['associated_objects_array'][$result['PID']]['full_config']['thumb'])) {
      $result['thumbnail_url'] = $variables['associated_objects_array'][$result['PID']]['full_config']['thumb'];
      $thumbnail = $result['thumbnail'];
      $target = $result['object_url'];
      $result['thumbnail'] = preg_replace('/href."/', "href=\"$target", $thumbnail);
    }
  }
}

/**
 * Implements hook_islandora_solr_primary_display().
 */
function agile_lcp_islandora_solr_primary_display() {
  return array(
    'lcp' => array(
      'name' => t('Filtered LCP Results'),
      'module' => 'agile_lcp',
      'file' => 'includes/lcp_results.inc',
      'class' => "IslandoraSolrResultsLCP",
      'function' => "displayResults",
      'description' => t("Add Selected Results to Coursepack"),
    ),
  );
}

/**
 * Implements hook_islandora_object_ingested()
 */
function agile_lcp_islandora_object_ingested(AbstractObject $object) {
  // If oai object exists with same identifier then delete it.
  module_load_include('inc', 'agile_lcp', 'includes/utilities');
  if (!in_array('islandora:oai_importCModel', $object->models)) {
    $identifier = agile_lcp_get_identifier_from_marc($object);
    if ($identifier) {
      $oai_pids = agile_lcp_get_oai_objects_from_identifier($identifier);
      foreach ($oai_pids as $oai_pid) {
        $oai_object = islandora_object_load($oai_pid);
        $oai_object->delete();
      }
    }
  }
}