language.install

<?php
/**
 * @file
 * Install, update and uninstall functions for the language module.
 */

/**
 * Implements hook_install().
 */
function language_install() {
  // Add the default language to the database too.
  language_save(language_default());
}

/**
 * Implements hook_uninstall().
 */
function language_uninstall() {
  // Restore core language variables to defaults.
  $config = config('system.core');
  $config->set('language_default', 'en');
  $config->set('language_count', 1);
  $config->save();

  // Re-initialize the language system so successive calls to t() and other
  // functions will not expect languages to be present.
  backdrop_static_reset('language_default');
  backdrop_language_initialize();
}

/**
 * Implements hook_schema().
 */
function language_schema() {
  $schema['language'] = array(
    'description' => 'List of all available languages in the system.',
    'fields' => array(
      'langcode' => array(
        'type' => 'varchar',
        'length' => 12,
        'not null' => TRUE,
        'default' => '',
        'description' => "Language code, e.g. 'de' or 'en-US'.",
      ),
      'name' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
        'description' => 'Language name.',
      ),
      'direction' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Direction of language (Left-to-Right = 0, Right-to-Left = 1).',
      ),
      'enabled' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Enabled flag (1 = Enabled, 0 = Disabled).',
      ),
      'weight' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Weight, used in lists of languages.',
      ),
    ),
    'primary key' => array('langcode'),
    'indexes' => array(
      'list' => array('weight', 'name'),
    ),
  );
  return $schema;
}

/**
 * @addtogroup updates-7.x-to-1.x
 * @{
 */

/**
 * Rename {language}.language to {language}.langcode.
 *
 * @see update_prepare_language()
 */
function language_update_1000() {
  // Rename language column to langcode and set it again as the primary key.
  if (db_field_exists('language', 'language')) {
    db_drop_primary_key('language');
    $langcode_spec = array(
      'type' => 'varchar',
      'length' => 12,
      'not null' => TRUE,
      'default' => '',
      'description' => "Language code, e.g. 'de' or 'en-US'.",
    );
    db_change_field('language', 'language', 'langcode', $langcode_spec, array('primary key' => array('langcode')));
  }

  // Update the 'language_default' system variable, if configured.
  $language_default = update_variable_get('language_default');
  if (!empty($language_default) && isset($language_default->language)) {
    $language_default->langcode = $language_default->language;
    unset($language_default->language);
    update_variable_set('language_default', $language_default);
  }
}

/**
 * Convert language settings to config.
 */
function language_update_1001() {
  // Save the always-required settings in system.core config.
  $default_language = update_variable_get('language_default', (object) array(
    'langcode' => 'en',
    'name' => 'English',
    'direction' => 0,
    'enabled' => TRUE,
    'weight' => 0,
  ));
  $core_config = config('system.core');

  // The default language setting used to be an object, now it's just langcode.
  $core_config->set('language_default', $default_language->langcode);
  $core_config->set('language_count', update_variable_get('language_count'));
  $core_config->save();

  // Save settings required for language.module into its own file.
  $language_config = config('language.settings');
  $language_config->set('_config_static', TRUE);

  // Negotiation options previously contained information from
  // hook_language_negotiation_info() as a cache, now we just store the order.
  $negotiation = array(
    'language_content' => array(),
    'language' => array(),
    'language_url' => array(),
  );
  foreach ($negotiation as $language_type => $negotiation_data) {
    $negotiation_data = update_variable_get('language_negotiation_' . $language_type, array());
    $negotiation[$language_type] = array_keys($negotiation_data);
  }
  array_filter($negotiation);
  $language_config->set('language_negotiation', $negotiation);

  $language_config->save();

  // Delete the old variables.
  update_variable_del('language_default');
  update_variable_del('language_count');
  update_variable_del('language_negotiation_language_content');
  update_variable_del('language_negotiation_language');
  update_variable_del('language_negotiation_language_url');

  // The language_types variable is no longer used in Backdrop.
  update_variable_del('language_types');
}

/**
 * Convert the language database table to config.
 */
function language_update_1002() {
  if (db_table_exists('language')) {
    $languages = db_query("SELECT * FROM {language}")->fetchAllAssoc('langcode');
    $config = config('language.settings');
    $config->set('_config_static', TRUE);
    $config->set('languages', $languages);
    $config->save();

    db_drop_table('language');
  }
}

/**
 * Add the native name to all enabled languages.
 */
function language_update_1003() {
  require_once BACKDROP_ROOT . '/core/includes/standard.inc';
  $predefined = standard_language_list();
  $config = config('language.settings');
  $languages = $config->get('languages');

  foreach ($languages as $langcode => $lang) {
    if (!empty($lang['native'])) {
      continue;
    }
    if (isset($predefined[$langcode][1])) {
      $config->set('languages.' . $langcode . '.native', $predefined[$langcode][1]);
    }
    else {
      $config->set('languages.' . $langcode . '.native', $lang['name']);
    }
  }
  $config->save();
}

/**
 * @} End of "addtogroup updates-7.x-to-1.x"
 * The next series of updates should start at 2000.
 */