Club Drupal

<?php

/**

 * @file

 * Install, update and uninstall functions for the date_api module.

 */

/**

 * Helper function for setting Date variables.

 */

function date_api_set_variables() {

  // Set absolute minimum and maximum year for dates on this site.

  // There is actually no maximum and minimum year in PHP 5, but a date with

  // a year less than 0 would result in negative ISO and DATETIME dates,

  // like -1250-01-01T00:00:00, which probably won't make sense or work

  // correctly anywhere.

  // The odd construct of using variable_get() instead of variable_set()

  // is so we don't accidentally write over an existing value. If

  // no value is set, variable_get() will set it.

  variable_get('date_max_year', 4000);

  variable_get('date_min_year', 1);

  variable_get('date_php_min_year', 1901);

  // Set an API version in a way that other modules can test for compatibility.

  variable_set('date_api_version', '7.2');

}

/**

 * Implements hook_requirements().

 */

function date_api_requirements($phase) {

  $requirements = array();

  if ($phase == 'runtime') {

    $t = get_t();

    module_load_include('module', 'date_api');

    $messages = date_api_status();

    $error_messages = !empty($messages['errors']) ? $messages['errors'] : array();

    $success_messages = !empty($messages['success']) ? $messages['success'] : array();

    if (!empty($error_messages)) {

      $requirements['date'] = array(

        'title' => $t('Date API'),

        'value' => $t('Missing system date settings'),

        'description' => implode(' ', array_merge($error_messages, $success_messages)),

        'severity' => REQUIREMENT_ERROR,

      );

    }

    else {

      $requirements['date'] = array(

        'title' => $t('Date API'),

        'value' => $t('System date settings'),

        'description' => implode(' ', $success_messages),

      );

    }

  }

  return $requirements;

}

/**

 * Implements hook_install().

 */

function date_api_install() {

  // Only set the message if Drupal itself is already installed.

  if (variable_get('install_task') == 'done') {

    // Ensure translations don't break at install time.

    $t = get_t();

    // date_api_set_variables can install date_timezone. The

    // date_timezone_install() function does a module_enable('date_api'). This

    // means that date_api_enable() can be called before date_api_install()

    // finishes! So the date_api schema needs to be installed before this line!

    date_api_set_variables();

    $message = $t('The Date API requires that you set up the <a href="@regional_settings">site timezone and first day of week settings</a> and the <a href="@regional_date_time">date format settings</a> to function correctly.', array('@regional_settings' => url('admin/config/regional/settings'), '@regional_date_time' => url('admin/config/regional/date-time')));

    drupal_set_message(filter_xss_admin($message), 'warning');

  }

}

/**

 * Implements hook_enable().

 */

function date_api_enable() {

  date_api_set_variables();

}

/**

 * Implements hook_uninstall().

 */

function date_api_uninstall() {

  cache_clear_all('date_timezone_identifiers_list', 'cache');

  $variables = array(

    'date_api_version',

    'date_min_year',

    'date_max_year',

    'date_php_min_year',

    'date_db_tz_support',

    'date_api_use_iso8601',

  );

  foreach ($variables as $variable) {

    variable_del($variable);

  }

  if (db_table_exists('views_display')) {

    $displays = array(

      'date_nav',

    );

    db_query("DELETE FROM {views_display} WHERE display_plugin IN ('" . implode("','", $displays) . "')");

    db_query("DELETE FROM {cache_views}");

  }

}

/**

 * Implements hook_update_last_removed().

 */

function date_api_update_last_removed() {

  return 6005;

}

/**

 * Move old date format to new date format tables,and delete the old tables.

 *

 * Insert only values that don't already exist in the new tables, in

 * case new version of those custom values have already been created.

 */

function date_api_update_7000() {

  // Move format data from the old 'date_format_types' table to the new

  // 'date_format_type' table.

  if (db_table_exists('date_format_types')) {

    // Find all the custom entries in the D6 table.

    $result = db_select('date_format_types', 'old_formats')

      ->fields('old_formats', array('type', 'title', 'locked'))

      ->condition('locked', 0)

      ->execute()

      ->fetchAll(PDO::FETCH_ASSOC);

    // Iterate over all the old values.

    foreach ($result as $row) {

      // See if this value already exists in the new table

      // (it might have been added manually before this update got run).

      $count = db_select('date_format_type', 'new_formats')

        ->condition('type', $row['type'])

        ->countQuery()

        ->execute()

        ->fetchField();

      // If the value is missing, insert it.

      // Do nothing if it already exists, assume the value in the

      // new table trumps the old values.

      if (empty($count)) {

        db_insert('date_format_type')

          ->fields(array(

            'type' => $row['type'],

            'title' => $row['title'],

            'locked' => $row['locked'],

          ))

          ->execute();

      }

    }

    // Drop the old table.

    db_drop_table('date_format_types');

  }

  // Move format data from the old 'date_formats' table (which was renamed to

  // 'd6_date_formats') to the new 'date_formats' table.

  if (db_table_exists('d6_date_formats')) {

    // Find all the custom entries in the D6 table.

    $result = db_select('d6_date_formats', 'old_formats')

      ->fields('old_formats', array('format', 'type', 'locked'))

      ->condition('type', 'custom')

      ->execute()

      ->fetchAll(PDO::FETCH_ASSOC);

    // Iterate over all the old values.

    foreach ($result as $row) {

      // See if this value already exists in the new table (it might have been

      // added manually before this update got run).

      $count = db_select('date_formats', 'new_formats')

        ->condition('format', $row['format'])

        ->condition('type', $row['type'])

        ->countQuery()

        ->execute()

        ->fetchField();

      // If the value is missing, insert it. Do nothing if it already exists,

      // assume the value in the new table trumps the old values.

      if (empty($count)) {

        db_insert('date_formats')

          ->fields(array(

            'format' => $row['format'],

            'type' => $row['type'],

            'locked' => $row['locked'],

          ))

          ->execute();

      }

    }

    // Drop the old table.

    db_drop_table('d6_date_formats');

  }

  // Move format data from the old 'date_format_locale' table (which was renamed

  // to 'd6_date_format_locale') to the new 'date_format_locale' table.

  if (db_table_exists('d6_date_format_locale')) {

    // Find all the custom entries in the D6 table.

    $result = db_select('d6_date_format_locale', 'old_formats')

      ->fields('old_formats', array('format', 'type', 'language'))

      ->condition('type', 'custom')

      ->execute()

      ->fetchAll(PDO::FETCH_ASSOC);

    // Iterate over all the old values.

    foreach ($result as $row) {

      // See if this value already exists in the new table (it might have been

      // added manually before this update got run).

      $count = db_select('date_format_locale', 'new_formats')

        ->condition('format', $row['format'])

        ->condition('type', $row['type'])

        ->condition('language', $row['language'])

        ->countQuery()

        ->execute()

        ->fetchField();

      // If the value is missing, insert it.

      // Do nothing if it already exists, assume the value in the

      // new table trumps the old values.

      if (empty($count)) {

        db_insert('date_format_locale')

          ->fields(array(

            'format' => $row['format'],

            'type' => $row['type'],

            'language' => $row['language'],

          ))

          ->execute();

      }

    }

    // Drop the old table.

    db_drop_table('d6_date_format_locale');

  }

}

/**

 * Drop D6 timezone_name field on {users} after upgrading to D7.

 */

function date_api_update_7001() {

  if (db_field_exists('users', 'timezone_name')) {

    db_drop_field('users', 'timezone_name');

  }

}