Implements hook_init(). Used to set the search_path, create default content and set default variables.

Related topics

File

tripal_core/tripal_core.module, line 60

The Tripal Core module

Code

function tripal_core_init() {
  global $base_url;

  // we need to declare here the persistent_chado global variable
  global $persistent_chado;
  global $prepared_statements;
  $persistent_chado = NULL;
  $prepared_statements = array();

  // add javascript files 
  drupal_add_js(drupal_get_path('theme', 'tripal') . '/js/tripal.ahah.js');

  // create the 'tripal' controlled volcabulary in chado but only if it doesn't already exist, and
  // only if the chado database is present.
  if (tripal_core_is_chado_installed()) {

    // make sure the current version of chado is set
    tripal_core_set_chado_version();

    if (!db_fetch_object(chado_query("SELECT * FROM {cv} WHERE name = 'tripal'"))) {
      $results = chado_query(
      "INSERT INTO {cv} (name,definition) " .
        "VALUES ('tripal', 'Terms used by Tripal for modules to manage data such as that stored in property tables like featureprop, analysisprop, etc')");
    }
    if (!db_fetch_object(chado_query("SELECT * FROM {db} WHERE name = 'tripal'"))) {
      $results = chado_query(
      "INSERT INTO {db} (name,description) " .
        "VALUES ('tripal', 'Used as a database placeholder for tripal defined objects such as tripal cvterms')");
    }
  }

  // add some variables for all javasript to use for building URLs
  global $base_url;
  $theme_dir = drupal_get_path('theme', 'tripal');
  $clean_urls = variable_get('clean_url', 0);
  drupal_add_js(
  " var baseurl  = '$base_url';
      var themedir = '$theme_dir';
      var isClean  =  $clean_urls;", 
  'inline', 'header');

  // make sure the date time settings are the way Tripal will insert them
  // otherwise PostgreSQL version that may have a different datestyle setting
  // will fail when inserting or updating a date column in a table.
  db_query("SET DATESTYLE TO '%s'", 'MDY');

  // in the event that an errant Tripal or extension function fails to
  // set the postgres search_path back to noraml we do it here on 
  // init of the core
  tripal_db_set_default_search_path();

  // create a persistent connection
  $connection = tripal_db_persistent_chado();

  // If we want AHAH elements on the node forms (e.g. chado_pub form) then we need to include
  // the node.pages file. Otherwise this error message is given:
  //
  // warning: call_user_func_array() expects parameter 1 to be a valid callback, 
  // function 'node_form' not found or invalid function name 
  // in /var/www/includes/form.inc on line 382.
  module_load_include('inc', 'node', 'node.pages');

}