update_test_schema.install

<?php


/**
 * @file
 * Update hooks and schema definition for the update_test_schema module.
 */

use Drupal\Core\Database\Database;
use Drupal\Core\Url;
use Drupal\Component\Render\FormattableMarkup;

/**
 * Implements hook_requirements().
 */
function update_test_schema_requirements($phase) {
  $requirements = [];
  if ($phase === 'runtime') {
    $requirements['path_alias_test'] = [
      'title' => 'Path alias test',
      'value' => 'Check a path alias for the admin page',
      'severity' => REQUIREMENT_INFO,
      'description' => new FormattableMarkup('Visit <a href=":link">the structure page</a> to do many useful things.', [
        ':link' => Url::fromRoute('system.admin_structure')->toString(),
      ]),
    ];
  }
  return $requirements;
}

/**
 * Implements hook_schema().
 *
 * The schema defined here will vary on state to allow for update hook testing.
 */
function update_test_schema_schema() {
  $schema_version = \Drupal::state()->get('update_test_schema_version', 8000);
  $table = [
    'fields' => [
      'a' => [
        'type' => 'int',
        'not null' => TRUE,
      ],
      'b' => [
        'type' => 'blob',
        'not null' => FALSE,
      ],
    ],
  ];
  switch ($schema_version) {
    case 8001:
      // Add the index.
      $table['indexes']['test'] = [
        'a',
      ];
      break;

  }
  return [
    'update_test_schema_table' => $table,
  ];
}
// Update hooks are defined depending on state as well.
$schema_version = \Drupal::state()->get('update_test_schema_version', 8000);
if ($schema_version >= 8001) {
  
  /**
   * Schema version 8001.
   */
  function update_test_schema_update_8001() {
    $table = [
      'fields' => [
        'a' => [
          'type' => 'int',
          'not null' => TRUE,
        ],
        'b' => [
          'type' => 'blob',
          'not null' => FALSE,
        ],
      ],
    ];
    // Add a column.
    Database::getConnection()->schema()
      ->addIndex('update_test_schema_table', 'test', [
      'a',
    ], $table);
  }
}
if ($schema_version >= 8002) {
  
  /**
   * Schema version 8002.
   */
  function update_test_schema_update_8002() {
    // Return a message that contains a system path with an alias.
    // @see \Drupal\FunctionalTests\Update\UpdatePathTestBaseTest::testPathAliasProcessing()
    return new FormattableMarkup('Visit <a href=":link">the structure page</a> to do many useful things.', [
      ':link' => Url::fromRoute('system.admin_structure')->toString(),
    ]);
  }
}
if ($schema_version >= 8003) {
  
  /**
   * Schema version 8003.
   */
  function update_test_schema_update_8003() {
    // Uninstall a module with no dependencies installed by the Standard
    // profile.
    \Drupal::service('module_installer')->uninstall([
      'page_cache',
    ]);
    // Install a test module that is not installed in any of the database
    // dumps.
    \Drupal::service('module_installer')->install([
      'module_test',
    ]);
  }
}