<?php

/**
 * @file
 * Install, update, and uninstall functions for the Search API sorts module.
 */

/**
 * Implements hook_schema().
 */
function search_api_sorts_schema() {
  $schema['search_api_sort'] = array(
    'description' => 'Stores all activated or configured sorts of a site.',
    'fields' => array(
      'id' => array(
        'description' => 'The primary identifier for a sort.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'identifier' => array(
        'description' => 'The identifier for this sort.',
        'type' => 'varchar',
        // This is ugly, but we can't be sure how long a field name might get.
        'length' => 255,
        'not null' => TRUE,
      ),
      'index_id' => array(
        'description' => 'The {search_api_index}.machine_name this sort belongs to.',
        'type' => 'varchar',
        'length' => 50,
        'not null' => TRUE,
      ),
      'field' => array(
        'description' => 'The index field this sort belongs to.',
        'type' => 'varchar',
        // This is ugly, but we can't be sure how long a field name might get.
        'length' => 255,
        'not null' => TRUE,
      ),
      'name' => array(
        'description' => 'The human-readable name to be displayed for this sort.',
        'type' => 'varchar',
        'length' => 80,
        'not null' => TRUE,
      ),
      'enabled' => array(
        'description' => 'A flag indicating whether the sort is enabled.',
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 1,
      ),
      'default_sort' => array(
        'description' => 'A flag indicating whether the sort is the default sort for the index.',
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 0,
      ),
      'default_sort_no_terms' => array(
        'description' => 'A flag indicating whether the sort is the default sort for the index when there are no search terms present.',
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 0,
      ),
      'default_order' => array(
        'description' => 'The default order for this field.',
        'type' => 'varchar',
        'length' => 4,
        'not null' => TRUE,
        'default' => 'desc',
      ),
      'weight' => array(
        'description' => 'A weight field determining the sort order of the sorts in the block.',
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 0,
      ),
    ) + entity_exportable_schema_fields(),
    'indexes' => array(
      'field' => array('index_id', array('field', 50)),
      'enabled' => array('enabled'),
    ),
    'primary key' => array('id'),
  );

  return $schema;
}

/**
 * Implements hook_uninstall().
 */
function search_api_sorts_uninstall() {
  variable_del('search_api_sorts_default_sort');
  variable_del('search_api_sorts_default_order');
}

/**
 * Created new fields for default sort and order. Removed deprecated variables.
 */
function search_api_sorts_update_7201() {
  variable_del('search_api_sorts_default_sort');
  variable_del('search_api_sorts_default_order');

  db_add_field('search_api_sort', 'default_sort', array(
    'description' => 'A flag indicating whether the sort is the default sort for the index.',
    'type' => 'int',
    'size' => 'tiny',
    'not null' => TRUE,
    'default' => 0,
  ));
  db_add_field('search_api_sort', 'default_order', array(
    'description' => 'The default order for this field.',
    'type' => 'varchar',
    'length' => 4,
    'not null' => TRUE,
    'default' => 'desc',
  ));
}

/**
 * Add an identifier field consisting of the index and field name.
 */
function search_api_sorts_update_7202() {
  db_add_field('search_api_sort', 'identifier', array(
    'description' => 'The identifier for this sort.',
    'type' => 'varchar',
    // This is ugly, but we can't be sure how long a field name might get.
    'length' => 255,
    'not null' => TRUE,
    'default' => '',
  ));

  db_update('search_api_sort')
    ->expression('identifier', 'CONCAT(index_id, \'__\', field)')
    ->execute();
}

/**
 * Add weight property.
 */
function search_api_sorts_update_7203() {
  db_add_field('search_api_sort', 'weight', array(
    'description' => 'A weight field determining the sort order of the sorts in the block.',
    'type' => 'int',
    'size' => 'tiny',
    'not null' => TRUE,
    'default' => 0,
  ));
}

/**
 * Add default sort no terms to the sort table.
 */
function search_api_sorts_update_7204() {
  db_add_field('search_api_sort', 'default_sort_no_terms', array(
    'description' => 'A flag indicating whether the sort is the default sort for the index when there are no search terms present.',
    'type' => 'int',
    'size' => 'tiny',
    'not null' => TRUE,
    'default' => 0,
  ));
}