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node_kaltura_mix.module in Kaltura 5

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plugins/node_kaltura_mix/node_kaltura_mix.module
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<?php

/*
 * @file
 * provides kaltura mix as node type
 *
 * Kaltura mix can be a kshow or a roughcut, according to module internal settings
 * kshow is going to be depracated in the next version of Kaltura API
 *
 */

/*
 * Implementation of hook_perm().
 */
function node_kaltura_mix_perm() {
  return array(
    'create kaltura mixes',
    'edit kaltura mixes',
    'view kaltura mixes',
  );
}

/*
 * Implementation of hook_access().
 */
function node_kaltura_mix_access($op, $node) {
  switch ($op) {
    case 'create':
      return user_access('create kaltura mixes', $account);
    case 'update':
      return user_access('edit kaltura mixes', $account);
    case 'delete':
      return user_access('delete kaltura mixes', $account);
  }
}

/**
 * Implementation of hook_menu().
 */
function node_kaltura_mix_menu() {
  $items = array();
  $items[] = array(
    'path' => 'admin/settings/kaltura/kaltura_mix_settings',
    'title' => 'Kaltura Media Mix Settings',
    'description' => 'Administer the kaltura mix module.',
    'callback' => 'drupal_get_form',
    'callback arguments' => array(
      'kaltura_mix_settings_form',
    ),
    'access' => user_access('administer kaltura'),
    'type' => MENU_NORMAL_ITEM,
    'weight' => -6,
  );
  return $items;
}

/*
 * provides admin settings page for mix nodes
 * currently - the only settings are the taxonomy vocabularies corresponding to tags and admin tags of kaltura item
 */
function kaltura_mix_settings_form() {
  $taxonomy_array = taxonomy_get_vocabularies($type = 'kaltura_mix');
  $options[] = '';
  foreach ($taxonomy_array as $voc) {
    if ($voc->tags == 1) {
      $options[$voc->vid] = $voc->name;
    }
  }
  $form['mix_taxonomy'] = array(
    '#type' => 'fieldset',
    '#title' => 'Taxonomy',
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => 0,
  );
  $form['mix_taxonomy']['kaltura_mix_tags_voc'] = array(
    '#title' => 'Taxonomy Vocabulary for Tags',
    '#description' => 'must be a \'free tagging\' vocabulary that is enabled for kaltura mix content type<br />only vocabularies that meets these requirements will apear in the list',
    '#type' => 'select',
    '#options' => $options,
    '#default_value' => variable_get('kaltura_mix_tags_voc', ''),
    '#required' => FALSE,
  );
  $form['mix_taxonomy']['kaltura_mix_admin_tags_voc'] = array(
    '#title' => 'Taxonomy Vocabulary for Admin Tags',
    '#description' => 'must be a \'free tagging\' vocabulary that is enabled for kaltura mix content type<br />only vocabularies that meets these requirements will apear in the list',
    '#type' => 'select',
    '#options' => $options,
    '#default_value' => variable_get('kaltura_mix_admin_tags_voc', ''),
    '#required' => FALSE,
  );
  $form['kaltura_mix_display'] = array(
    '#type' => 'fieldset',
    '#title' => t('Display settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => -1,
  );
  $players = kaltura_choose_player(0, 'roughcut', 'mix');
  $saved_player = variable_get('kaltura_roughcut_mix_widget', KalturaSettings_DEFAULT_RC_PLAYER_UICONF);
  $form['kaltura_mix_display']['kaltura_roughcut_mix_widget'] = $players['default_widget'];
  $form['kaltura_mix_display']['kaltura_roughcut_mix_widget']['#default_value'] = $saved_player;
  $form['kaltura_mix_display']['clear_block_item'] = array(
    '#type' => 'item',
    '#value' => '<div class="clear-block"></div>',
  );
  $form['kaltura_mix_display']['kaltura_mix_width'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Player Width (in pixels)'),
    '#default_value' => variable_get('kaltura_mix_width', '410'),
  );
  $form['kaltura_mix_display']['kaltura_mix_height'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Player Height (in pixels)'),
    '#default_value' => variable_get('kaltura_mix_height', '364'),
  );
  $form['kaltura_mix_display']['kaltura_mix_thumb_width'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Thumbnail Width'),
    '#default_value' => variable_get('kaltura_mix_thumb_width', '120'),
  );
  $form['kaltura_mix_display']['kaltura_mix_thumb_height'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Thumbnail Height'),
    '#default_value' => variable_get('kaltura_mix_thumb_height', '90'),
  );
  $form['kaltura_mix_display']['kaltura_display_mix_teaser_with_player'] = array(
    '#type' => 'radios',
    '#title' => t('In Teaser Mode - Display Only Thumbnail'),
    '#options' => array(
      '0' => 'Only thumbnail',
      '1' => 'Thumbnail and player',
    ),
    '#default_value' => variable_get('kaltura_display_mix_teaser_with_player', '0'),
  );
  return system_settings_form($form);
}

/**
 * Implementation of hook_node_info().
 */
function node_kaltura_mix_node_info() {
  $description = t('A Kaltura Media Remix is an intuitive way to create a mashup of rich-media. Similar to the Kaltura Media Node, ' . 'a Remix allows upload and import of rich media, but adds the power of online video editing. Each Media Remix ' . 'encapsulates a "Remix" button linking to a simple to use online video editor that supports trimming videos, transitions, effects, sound-tracks, ' . 'remixing, reordering videos, overlays, and collaborative editing');
  return array(
    'kaltura_mix' => array(
      'name' => t('Kaltura Media Remix'),
      'module' => 'node_kaltura_mix',
      'description' => $description,
    ),
  );
}

/**
 * Implementation of hook_form().
 *
 * Determine how the "add node" form, of mix node, will look like
 *
 * We actually use a 2 steps form, the one for collecting basic data (needed in kaltura's API) about the mix
 * the second step is to call the contibution wizard to add media to the mix.
 *
 * The mix is being created b an API call to kaltura.
 */
function node_kaltura_mix_form(&$node, $form_state) {
  global $user;
  $type = node_get_types('type', $node);

  // if nid exists, it means we are in edit node mode
  if ($node->nid) {
    $form['title'] = array(
      '#type' => 'textfield',
      '#title' => check_plain($type->title_label),
      '#required' => TRUE,
      '#default_value' => $node->title,
      '#weight' => -5,
    );
    $form['body_filter']['body'] = array(
      '#type' => 'textarea',
      '#title' => check_plain($type->body_label),
      '#default_value' => $node->body,
      '#rows' => 20,
      '#required' => FALSE,
    );
    $action_buttons = '<input type="button" value="Edit Mix" onclick=" kalturaInitModalBox(\'' . url('kaltura/simple_editor/') . '\' + \'' . $node->kaltura_entryId . '\' + \'/entry/empty_partner_data/no_refresh\', { width: 890, height: 546 });" />';
    $form['edit_mix'] = array(
      '#type' => 'item',
      '#value' => $action_buttons,
    );
    $form['kaltura_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_tags,
      '#weight' => -4,
    );
    $form['kaltura_admin_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Admin Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_admin_tags,
      '#weight' => -3,
    );
    $form['kaltura_entryId'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_entryId,
    );
    $form['media_preview'] = array(
      '#type' => 'item',
      '#title' => t('Media'),
      '#value' => kaltura_replace_tags(theme('node_kaltura_mix_entryId', $node, 0)),
    );
    $form['kstatus'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kstatus,
    );
    $form['kaltura_total_rank'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_total_rank,
    );
    $form['kaltura_rank'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_rank,
    );
    $form['kaltura_votes'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_votes,
    );
    $form['kaltura_plays'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_plays,
    );
    $form['kaltura_views'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_views,
    );
    $form['kaltura_media_date'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_media_date,
    );
    $form['kaltura_download_url'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_download_url,
    );
    $form['kaltura_height'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_height,
    );
    $form['kaltura_width'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_width,
    );
    $form['kaltura_source_link'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_source_link,
    );
    $form['kaltura_source_id'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_source_id,
    );
    $form['kaltura_source'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_source,
    );
    $form['kaltura_partner_data'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_partner_data,
    );
    $form['kaltura_thumbnail_url'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_thumbnail_url,
    );
    $form['kaltura_duration'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_duration,
    );
    $form['kaltura_media_type'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_media_type,
    );
  }
  else {
    $form['kaltura_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_tags ? $node->kaltura_tags : $_REQUEST['kaltura_tags'],
    );
    $form['kaltura_admin_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Admin Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_admin_tags ? $node->kaltura_admin_tags : $_REQUEST['kaltura_admin_tags'],
    );
    $form['title'] = array(
      '#type' => 'textfield',
      '#title' => check_plain($type->title_label),
      '#required' => TRUE,
      '#default_value' => $node->title ? $node->title : $_REQUEST['title'],
      '#weight' => -5,
    );

    // if form state have a continue attribute, it means we are on the second step of the form
    // so we create the mix using kaltura API client, and then we start the contribution wizard to add media
    if ($_REQUEST['title'] && $_REQUEST['op'] == 'Continue') {
      $partner_data = "user_id@" . $user->uid;
      $kaltura_client = KalturaHelpers::getKalturaClient();
      $session_user = KalturaHelpers::getSessionUser();
      if (WORK_WITH_KSHOW) {
        $result = kaltura_add_kshow($session_user, $kaltura_client, $partner_data);
        $partner_data .= "|kshow_exist@yes";
        $show_entry_id = $result['result']['kshow']['id'];
        $cw_vars = kaltura_format_cw_vars(array(
          'kshow_id' => $show_entry_id,
          'partner_data' => $partner_data,
        ));
        $prefix = "<div class=\"add_video_to_node\"><script>jQuery(document).ready(function(){ kalturaInitModalBox('" . url("kaltura/contribution_wizard/" . $cw_vars) . "'); });</script>";
        kaltura_create_node_from_kshow($result['result']);
      }
      else {
        $result = kaltura_add_roughcut($session_user, $kaltura_client, $partner_data);
        $partner_data .= "|kshow_exist@yes";
        $show_entry_id = $result['result']['entry']['id'];
        $cw_vars = kaltura_format_cw_vars(array(
          'kshow_id' => $show_entry_id,
          'partner_data' => $partner_data,
          'type' => 'entry',
        ));
        $prefix = "<div class=\"add_video_to_node\"><script>jQuery(document).ready(function(){ kalturaInitModalBox('" . url("kaltura/contribution_wizard/" . $cw_vars) . "'); });</script>";
        kaltura_create_node_from_roughcut($result['result']);
      }
      $form["add_kaltura"] = array(
        "#prefix" => $prefix,
        "#type" => "item",
        "#value" => "",
        "#suffix" => "</div>",
      );
    }
  }
  return $form;
}

/*
 * helper function to create a node from a result of addKshow API call
 */
function kaltura_create_node_from_kshow($result) {
  global $user;
  $node->title = $result['kshow']['name'];
  $node->body = $result['kshow']['description'];

  // print_r($notification_data,TRUE).PHP_EOL.print_r($_REQUEST,TRUE);
  $node->type = 'kaltura_mix';
  $node->uid = $user->uid;
  $node->status = 1;
  $node->created = time();
  $node->comment = FALSE;
  $node->changed = time();
  $node->promote = 0;
  $node->sticky = 0;
  kaltura_push_mix_extra_fields($node, $result);
  $node->kstatus = $result['kshow']['status'];
  $node->kaltura_tags = str_replace('a generated show\'', '', $result['kshow']['tags']);
  $node->kaltura_entryId = $result['kshow']['id'];

  //$node->admin_tags = $result['kshow']['admin_tags'];

  // Admin tags are not returned in xml from kaltura, so we take them from $_REQUEST
  $node->kaltura_admin_tags = $_REQUEST['admin_tags'];
  $node->kaltura_entry_data = serialize(array(
    $result,
  ));
  node_save($node);
  module_invoke('node_kaltura_mix', 'hook_insert', $node);
}

/*
 * helper function to create a node from a result of addRoughcutEntry API call
 */
function kaltura_create_node_from_roughcut($result, $status = NULL) {
  global $user;
  $node->title = $result['entry']['name'];
  $node->body = $result['entry']['description'];

  // print_r($notification_data,TRUE).PHP_EOL.print_r($_REQUEST,TRUE);
  $node->type = 'kaltura_mix';
  $node->uid = $user->uid;
  $node->status = $status ? $status : $_REQUEST['status'];
  $node->created = time();
  $node->comment = $_REQUEST['comment'];
  $node->changed = time();
  $node->promote = $_REQUEST['promote'];
  $node->sticky = $_REQUEST['sticky'];
  kaltura_push_mix_extra_fields($node, $result);
  $node->kstatus = $result['entry']['status'];
  $node->kaltura_tags = str_replace('a generated show\'', '', $result['entry']['tags']);
  $node->kaltura_entryId = $result['entry']['id'];

  // Admin tags are not returned in xml from kaltura, so we take them from $_REQUEST

  //$node->admin_tags = $result['entry']['admin_tags'];
  $node->kaltura_admin_tags = $_REQUEST['admin_tags'];
  $node->kaltura_entry_data = serialize(array(
    $result,
  ));
  node_save($node);
  module_invoke('node_kaltura_mix', 'hook_insert', $node);
}

/*
 * helper function to inject the node with extra data
 */
function kaltura_push_mix_extra_fields(&$node, $result) {
  $fields = array(
    // node key => result key
    'kaltura_media_type' => 'mediaType',
    'kaltura_duration' => WORK_WITH_KSHOW ? 'lengthInMsecs' : 'duration',
    'kaltura_thumbnail_url' => 'thumbnailUrl',
    'kaltura_partner_data' => 'partnerData',
    'kaltura_source' => '',
    'kaltura_source_id' => '',
    'kaltura_source_link' => '',
    'kaltura_width' => '',
    'kaltura_height' => '',
    'kaltura_download_url' => '',
    'kaltura_media_date' => '',
    'kaltura_views' => 'views',
    'kaltura_plays' => 'plays',
    'kaltura_votes' => 'votes',
    'kaltura_rank' => 'rank',
    'kaltura_total_rank' => 'totalRank',
  );
  foreach ($fields as $node_key => $result_key) {
    if ($result_key != '') {
      if ($result['entry'][$result_key]) {
        $node->{$node_key} = $result['entry'][$result_key];
      }
    }
  }
}

/*
 * helper function to call the addKshow service, providing the data the user has submitted in the first step of the form
 */
function kaltura_add_kshow($session_user, $kaltura_client, $partner_data) {
  $kshow = new kalturaKshow();
  $kshow->name = $_REQUEST['title'];
  $kshow->tags = $_REQUEST['kaltura_tags'];
  $kshow->admin_tags = $_REQUEST['kaltura_admin_tags'];
  $kshow->partnerData = $partner_data;
  $result = $kaltura_client
    ->addKShow($session_user, $kshow, 1);
  return $result;
}

/*
 * helper function to call the addRoughcutEntry service, providing the data the user has submitted in the first step of the form
 */
function kaltura_add_roughcut($session_user, $kaltura_client) {
  $rc = new KalturaEntry();
  $rc->name = $_REQUEST['title'];
  $rc->type = ENTRY_TYPE_ROUGHCUT;
  $rc->tags = $_REQUEST['kaltura_tags'];
  $rc->admin_tags = $_REQUEST['kaltura_admin_tags'];
  $rc->partnerData = $partner_data;
  $result = $kaltura_client
    ->addRoughcutEntry($session_user, -2, $rc);
  return $result;
}

/**
 * Implementation of hook_form_alter().
 *
 * change the node's add/edit form
 * 
 * In add mode, we want to hide some fields and settings that are not relevant to that mode
 * or can't be gathered at this point
 *
 * In edit mode we do not change the form
 */
function node_kaltura_mix_form_alter($form_id, &$form) {
  if ($form_id == 'kaltura_mix_node_form' && !$form['nid']['#value']) {
    if (isset($form["type"]) && $form["type"]["#value"] . "_node_form" == $form_id) {
      unset($form['submit']);
      unset($form['preview']);
      unset($form['menu']);
      unset($form["log"]);
      unset($form["author"]);
      unset($form["taxonomy"]);
      unset($form["revision_information"]);

      //unset($form['comment_settings']);

      //unset($form['attachments']);

      //unset($form["body_filter"]["kaltura"]);

      //unset($form["options"]);
      $form_state['storage']['continue'] = TRUE;
      $form['buttons']['continue'] = array(
        "#type" => "button",
        "#value" => "Continue",
        "#weight" => 40,
      );
    }
  }
}

/*
 * Implementation of hook_theme().
 */
function node_kaltura_mix_theme() {
  $themes = array(
    'node_kaltura_mix_tags' => array(
      'arguments' => array(
        'element' => NULL,
      ),
    ),
    'node_kaltura_mix_admin_tags' => array(
      'arguments' => array(
        'themeParams' => NULL,
      ),
    ),
    'node_kaltura_mix_entryId' => array(
      'arguments' => array(
        'themeParams' => NULL,
      ),
    ),
    'node_kaltura_mix_thumbnail_url' => array(
      'arguments' => array(
        'themeParams' => NULL,
        'teaser' => NULL,
      ),
    ),
  );
  return $themes;
}

/**
 * Implementation of hook_insert().
 */
function node_kaltura_mix_insert(&$node) {
  $sql = 'INSERT INTO {node_kaltura} (vid, nid, kaltura_entryId, kaltura_tags, kaltura_admin_tags, kstatus, kaltura_media_type, kaltura_duration, ' . 'kaltura_thumbnail_url, kaltura_partner_data, kaltura_source, kaltura_source_id, kaltura_source_link, kaltura_width, kaltura_height, ' . 'kaltura_download_url, kaltura_media_date, kaltura_views, kaltura_plays, kaltura_votes, kaltura_rank, kaltura_total_rank, kaltura_entry_data)' . ' VALUES (%d, %d, \'%s\', \'%s\', \'%s\', %d, %d, %d, \'%s\', \'%s\', %d, %d, \'%s\', %d, %d, \'%s\', \'%s\', %d, %d, %d, %d, %d, \'%s\')';
  db_query($sql, $node->vid, $node->nid, $node->kaltura_entryId, $node->kaltura_tags, $node->kaltura_admin_tags, $node->kstatus, $node->kaltura_media_type, $node->kaltura_duration, $node->kaltura_thumbnail_url, $node->kaltura_partner_data, $node->kaltura_source, $node->kaltura_source_id, $node->kaltura_source_link, $node->kaltura_width, $node->kaltura_height, $node->kaltura_download_url, $node->kaltura_media_date, $node->kaltura_views, $node->kaltura_plays, $node->kaltura_votes, $node->kaltura_rank, $node->kaltura_total_rank, $node->kaltura_entry_data);
  kaltura_update_mix_node_taxonomy($node);
}

/*
 * helper function to inject tags and admin tags into the corresponding taxonomy vocabularies (if any)
 */
function kaltura_update_mix_node_taxonomy(&$node) {
  $voc_id = variable_get('kaltura_mix_tags_voc', '');
  $avoc_id = variable_get('kaltura_mix_admin_tags_voc', '');
  $terms['tags'] = array();
  if ($voc_id) {
    watchdog('mix tags', print_r($node->kaltura_tags, TRUE));
    $terms['tags'][$voc_id] = $node->kaltura_tags;
  }
  if ($avoc_id) {
    if ($avoc_id == $voc_id) {
      $terms['tags'][$admin_voc_id] .= ',' . $node->kaltura_admin_tags;
    }
    else {
      $terms['tags'][$admin_voc_id] = $node->kaltura_admin_tags;
    }
  }
  $node->taxonomy = $terms;
  taxonomy_node_save($node->nid, $terms);
}

/**
 * Implementation of hook_update().
 */
function node_kaltura_mix_update($node) {

  // if this is a new node or we're adding a new revision,
  if ($node->revision) {
    node_example_insert($node);
  }
  else {
    if ($node->notification_update !== TRUE) {
      kaltura_update_mix_tags_from_taxonomy($node);
    }
    $sql = 'UPDATE {node_kaltura} SET kaltura_tags = \'%s\', kaltura_admin_tags = \'%s\' WHERE vid = %d';
    db_query($sql, $node->kaltura_tags, $node->kaltura_admin_tags, $node->vid);
    watchdog('upd mix', $node->kaltura_tags);
    if ($node->notification_update !== TRUE) {
      kaltura_update_mix_tags($node->kaltura_entryId, $node->title, $node->kaltura_tags, $node->kaltura_admin_tags);
    }
    else {
      watchdog('mix update', 'updating taxonomy from tags ' . $node->kaltura_tags);
      kaltura_update_mix_node_taxonomy($node);
    }
  }
}

/*
 * helper function that takes the node's taxonomy tags
 * and pushes them into the kaltura tags fields
 */
function kaltura_update_mix_tags_from_taxonomy(&$node) {
  $voc = variable_get('kaltura_mix_tags_voc', '');

  //echo $voc;
  if ($voc != '') {
    $tags = $node->taxonomy['tags'][$voc];
    $node->kaltura_tags = $tags;
  }
  $voc = variable_get('kaltura_mix_admin_tags_voc', '');
  if ($voc != '') {
    $tags = $node->taxonomy['tags'][$voc];
    $node->kaltura_admin_tags = $tags;
  }
}

/*
 * Implementation of hook_delete().
 */
function node_kaltura_mix_delete($node) {
  $del_sql = 'DELETE FROM {node_kaltura} WHERE nid = %d';
  db_query($del_sql, $node->nid);
}

/**
 * Implementation of hook_load().
 */
function node_kaltura_mix_load($node) {
  $sql = 'SELECT kaltura_entryId, kaltura_tags, kaltura_admin_tags, kstatus, kaltura_media_type, kaltura_duration, kaltura_thumbnail_url, ' . 'kaltura_partner_data, kaltura_source, kaltura_source_id, kaltura_source_link, kaltura_width, kaltura_height, kaltura_download_url, kaltura_media_date, ' . 'kaltura_views, kaltura_plays, kaltura_votes, kaltura_rank, kaltura_total_rank, kaltura_entry_data FROM {node_kaltura} WHERE vid = %d';
  $result = db_query($sql, $node->vid);
  $additions = db_fetch_object($result);
  return $additions;
}

/**
 * Implementation of hook_view().
 */
function node_kaltura_mix_view($node, $teaser = FALSE, $page = FALSE) {
  $node = node_prepare($node, $teaser);
  $node->content['kaltura_tags'] = array(
    '#value' => theme('node_kaltura_mix_tags', $node),
    '#weight' => 1,
  );
  $node->content['kaltura_admin_tags'] = array(
    '#value' => theme('node_kaltura_mix_admin_tags', $node),
    '#weight' => 6,
  );

  // in KShow - entryId = kshowId
  if ($node->kaltura_entryId) {
    $node->content['kaltura_entry'] = array(
      '#value' => theme('node_kaltura_mix_entryId', $node, $teaser),
      '#weight' => 7,
    );
  }
  $node->content['kaltura_thumbnail_url'] = array(
    '#value' => theme('node_kaltura_mix_thumbnail_url', $node, $teaser),
    '#weight' => 0,
  );
  return $node;
}

/*
 * theme function to render the entryId field into HTML
 *
 * the returned value is a normal string with a specific structure
 * this "tag" is being later replaced using nodeAPI to the kaltura embed tags
 */
function theme_node_kaltura_mix_entryId($node, $teaser) {
  $width = variable_get('kaltura_mix_width', '410');
  $height = variable_get('kaltura_mix_height', '364');
  if ($teaser && variable_get('kaltura_display_mix_teaser_with_player', 0) == 0) {
    return '';
  }
  if (WORK_WITH_KSHOW) {
    return '[kaltura-widget kid="' . $node->kaltura_entryId . '" size="large"  width="' . $width . '" height="' . $height . '" /]';
  }
  else {
    return '[kaltura-widget mix="' . $node->kaltura_entryId . '" size="large"  width="' . $width . '" height="' . $height . '" /]';
  }
}

/*
 * function to render the thumbnail_url field into HTML
 */
function theme_node_kaltura_mix_thumbnail_url($node, $teaser, $nosize = FALSE, $size = array()) {
  if (isset($size['width']) && isset($size['height'])) {
    $width = $size['width'];
    $height = $size['height'];
  }
  else {
    $width = variable_get('kaltura_mix_thumb_width', '120');
    $height = variable_get('kaltura_mix_thumb_height', '90');
  }
  $size_str = '';
  if ($nosize == FALSE) {
    $size_str = '/width/' . $width . '/height/' . $height;
  }
  if ($node->link_thumb || $teaser) {
    return '<div class="kaltura_thumb"><a href="' . url('node/' . $node->nid) . '"><img src="' . $node->kaltura_thumbnail_url . $size_str . '" ' . $extra . ' /></a></div>';
  }
  else {
    return '<div class="kaltura_thumb"><img src="' . $node->kaltura_thumbnail_url . $size_str . '" ' . $extra . ' /></div>';
  }
}

/*
 * theme function to render the admin tags field into HTML
 *
 * function can be overridden in template.php file
 */
function theme_node_kaltura_mix_admin_tags($node) {
  if ($node->kaltura_admin_tags) {
    $admin_tags = "<div class=\"kaltura_admin_tags\"><label class=\"field_title\">" . t('Kaltura Admin Tags') . ": </label>" . check_plain($node->kaltura_admin_tags) . '</div>';
  }
  return $admin_tags;
}

/*
 * theme function to render the tags field into HTML
 * 
 * function can be overridden in template.php file
 */
function theme_node_kaltura_mix_tags($node) {
  if ($node->kaltura_tags) {
    $tags = "<div class=\"kaltura_tags\"><label class=\"field_title\">" . t('Kaltura Tags') . ": </label>" . check_plain($node->kaltura_tags) . '</div>';
  }
  return $tags;
}

/*
 * This function calls Kaltura API to update metadata of a mix in the kaltura DB
 */
function kaltura_update_mix_tags($eid, $name, $tags, $admin_tags) {
  $admin = 0;
  if ($need_admin) {
    $admin = 1;
  }
  $kaltura_client = KalturaHelpers::getKalturaClient();
  $session_user = KalturaHelpers::getSessionUser();
  if (WORK_WITH_KSHOW) {

    // update kshow
    $kshow = new KalturaKShow();
    $kshow->tags = $tags;
    $kshow->admin_tags = $admin_tags;
    $kshow->name = $name;
    $result = $kaltura_client
      ->updateKShow($session_user, $eid, $kshow, 1);
  }
  else {

    // update entry
    $entry = new KalturaEntry();
    $entry->tags = $tags;
    $entry->adminTags = $admin_tags;
    $entry->name = $name;
    $result = $kaltura_client
      ->updateEntry($session_user, $eid, $entry);
  }

  // If we want to collect more data, we can call this function with 3rd parameter FALSE:
  kaltura_add_result_to_entry_data($eid, $result['result']);
}