<?php

/* vim: set filetype=php : */

/**
 * @file
 * Install/uninstall visitors module.
 */

/**
 * Install the module with a new database table.
 */
function visitors_install() {
  drupal_set_message(st('Installing visitors module.'));
  drupal_install_schema('visitors');
}

/**
 * Uninstall the module with database table and module settings.
 */
function visitors_uninstall() {
  drupal_uninstall_schema('visitors');

  variable_del('visitors_exclude_administer_users');
  variable_del('visitors_graph_height');
  variable_del('visitors_graph_width');
  variable_del('visitors_flush_log_timer');
  variable_del('visitors_last_registered_user');
  variable_del('visitors_lines_per_page');
  variable_del('visitors_published_nodes');
  variable_del('visitors_registered_user');
  variable_del('visitors_show_total_visitors');
  variable_del('visitors_show_unique_visitor');
  variable_del('visitors_since_date');
  variable_del('visitors_user_ip');
}

function visitors_update_6021() {
  $ret = array();

  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {visitors} CHANGE COLUMN visitors_uid visitors_uid int NOT NULL default 0");
      $ret[] = update_sql("ALTER TABLE {visitors} CHANGE COLUMN visitors_date_time visitors_date_time int NOT NULL default 0");
      $ret[] = update_sql("ALTER TABLE {visitors} CHANGE COLUMN visitors_url visitors_url varchar(255) NOT NULL default ''");
      break;
    case 'pgsql':
      db_change_column($ret, 'visitors', 'visitors_uid', 'visitors_uid', 'int', array('not null' => TRUE, 'default' => "0"));
      db_change_column($ret, 'visitors', 'visitors_date_time', 'visitors_date_time', 'int', array('not null' => TRUE, 'default' => "0"));
      db_change_column($ret, 'visitors', 'visitors_url', 'visitors_url', 'varchar(255)', array('not null' => TRUE, 'default' => "''"));
      break;
  }

  return $ret;
}

function visitors_update_6031() {
  $ret = array();

  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {visitors} CHANGE COLUMN visitors_url visitors_url text NOT NULL");
      $ret[] = update_sql("ALTER TABLE {visitors} CHANGE COLUMN visitors_referer visitors_referer text NOT NULL");
      $ret[] = update_sql("ALTER TABLE {visitors} CHANGE COLUMN visitors_user_agent visitors_user_agent text NOT NULL");
      break;
    case 'pgsql':
      db_change_column($ret, 'visitors', 'visitors_url', 'visitors_url', 'text', array('not null' => TRUE));
      db_change_column($ret, 'visitors', 'visitors_referer', 'visitors_referer', 'text', array('not null' => TRUE));
      db_change_column($ret, 'visitors', 'visitors_user_agent', 'visitors_user_agent', 'text', array('not null' => TRUE));
      break;
  }

  return $ret;
}

/**
 * Implementation of hook_schema().
 */
function visitors_schema() {
  $schema['visitors'] = array(
    'fields' => array(
      'visitors_id' => array(
        'type' => 'serial',
        'not null' => TRUE,
      ),
      'visitors_uid' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'visitors_ip' => array(
        'type' => 'varchar',
        'length' => 32,
        'not null' => TRUE,
        'default' => '',
      ),
      'visitors_date_time' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'visitors_url' => array(
        'type' => 'text',
        'not null' => TRUE,
      ),
      'visitors_referer' => array(
        'type' => 'text',
        'not null' => TRUE,
      ),
      'visitors_path' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'visitors_title' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'visitors_user_agent' => array(
        'type' => 'text',
        'not null' => TRUE,
      )
    ),
    'primary key' => array('visitors_id'),
  );

  return $schema;
}