materio-base-d7/sites/all/modules/contrib/localisation/i18n/i18n.install

<?php

/**
 * @file
 * Installation file for Internationalization (i18n) module.
 */


/**
 * Implements hook_install().
 */
function i18n_install() {
  // Set module weight for it to run after core modules
  db_query("UPDATE {system} SET weight = 10 WHERE name = 'i18n' AND type = 'module'");
}

/**
 * Implements hook_uninstall().
 */
function i18n_uninstall() {
  variable_del('i18n_drupal6_update');
}

/**
 * Add fields to the schema if they don't exist.
 *
 * @param string $table
 *   The name of the database table.
 * @param array $fields
 *   The list of database fields to create.
 * @param boolean $force_rebuild_schema
 *   Whether to force drupal_get_schema() to rebuild the schema. This may be
 *   necessary when additional implementations of hook_schema_alter() have
 *   become available since the schema was originally built.
 */
function i18n_install_create_fields($table, $fields, $force_rebuild_schema = FALSE) {
  static $schema;
  $rebuild_schema = !isset($schema) || $force_rebuild_schema;
  $schema = drupal_get_schema($table, $rebuild_schema);
  foreach ($fields as $field) {
    if (!empty($schema['fields'][$field])) {
      if (!db_field_exists($table, $field)) {
        db_add_field($table, $field, $schema['fields'][$field]);
      }
      else {
        // The field exists, make sure field definition is up to date.
        db_change_field($table, $field, $field, $schema['fields'][$field]);
      }
    }
  }
}

/**
 * Mark this as updated so all (renamed) modules know they need to update from D6 version when installing
 */
function i18n_update_7000() {
  variable_set('i18n_drupal6_update', TRUE);
  variable_del('i18n_selection_mode');
}

/**
 * Refresh caches and rebuild menus.
 */
function i18n_update_7001() {
  drupal_flush_all_caches();
}