conditional_fields.install

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

/**
 * Implements hook_schema().
 */
function conditional_fields_schema() {
  $schema['conditional_fields'] = array(
    'description' => 'Stores dependencies between fields.',
    'fields' => array(
      'id' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'The primary identifier for a dependency.',
      ),
      'dependee' => array(
        'type' => 'varchar',
        'not null' => TRUE,
        'length' => 128,
        'description' => 'The id of the dependee field instance.',
      ),
      'dependent' => array(
        'type' => 'varchar',
        'not null' => TRUE,
        'length' => 128,
        'description' => 'The id of the dependent field instance.',
      ),
      'options' => array(
        'type' => 'blob',
        'size' => 'big',
        'not null' => TRUE,
        'serialize' => TRUE,
        'description' => 'Serialized data containing the options for the dependency.',
      ),
    ),
    'primary key' => array('id'),
  );
  return $schema;
}

/**
 * Implements hook_update_last_removed().
 */
function conditional_fields_update_last_removed() {
  return 7002;
}

/**
 * Adjust schema for new `entity_type.bundle.field_name` ID types (rather than
 * numeric IDs which Backdrop does not use).
 */
function conditional_fields_update_1000() {
  $config = config('conditional_fields.settings');

  db_change_field('conditional_fields', 'dependee', 'dependee', array(
    'description' => 'The id of the dependee field instance.',
    'type' => 'varchar',
    'length' => 128,
    'not null' => TRUE,
    'default' => '',
  ));
  db_change_field('conditional_fields', 'dependent', 'dependent', array(
    'description' => 'The id of the dependent field instance.',
    'type' => 'varchar',
    'length' => 128,
    'not null' => TRUE,
    'default' => '',
  ));
}