<?php
// $Id$

function fieldgroup_install() {
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      db_query("CREATE TABLE {node_group} (
                `type_name` varchar(32) NOT NULL default '',
                `group_name` varchar(32) NOT NULL default '',
                `label` varchar(255) NOT NULL default '',
                `settings` mediumtext NOT NULL,
                `weight` tinyint(4) NOT NULL,
                 PRIMARY KEY(`type_name`, `group_name`)
              ) /*!40100 DEFAULT CHARACTER SET utf8 */");
      db_query("CREATE TABLE {node_group_fields} (
                `type_name` varchar(32) NOT NULL default '',
                `group_name` varchar(32) NOT NULL default '',
                `field_name` varchar(32) NOT NULL default '',
                 PRIMARY KEY(`type_name`, `group_name`, `field_name`)
              ) /*!40100 DEFAULT CHARACTER SET utf8 */");
      break;
    case 'pgsql':
      db_query("CREATE TABLE {node_group} (
                type_name varchar(32) NOT NULL default '',
                group_name varchar(32) NOT NULL default '',
                label varchar(255) NOT NULL default '',
                settings text NOT NULL,
                weight smallint NOT NULL,
                PRIMARY KEY(type_name, group_name)
      )");
      db_query("CREATE TABLE {node_group_fields} (
                type_name varchar(32) NOT NULL default '',
                group_name varchar(32) NOT NULL default '',
                field_name varchar(32) NOT NULL default '',
                PRIMARY KEY(type_name, group_name, field_name)
      )");
    break;
  }
  db_query("UPDATE {system} SET weight = 9 WHERE name = 'fieldgroup'");
}

/**
 *  rename groups form "group-*" to "group_*"
 */
function fieldgroup_update_1() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      $ret[] = update_sql("UPDATE {node_group} SET group_name = 'group_'||SUBSTRING(group_name FROM 7)");
      $ret[] = update_sql("UPDATE {node_group_fields} SET group_name = 'group_'||SUBSTRING(group_name FROM 7)");
      break;

    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("UPDATE {node_group} SET group_name = CONCAT('group_', SUBSTRING(group_name FROM 7))");
      $ret[] = update_sql("UPDATE {node_group_fields} SET group_name = CONCAT('group_', SUBSTRING(group_name FROM 7))");
      break;
  }
  return $ret;
}

/**
 * add display settings for the group
 */
function fieldgroup_update_2() {
  $ret = array();

  // set settings column to accept larger values
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql('ALTER TABLE {node_group} CHANGE settings settings mediumtext NOT NULL');
      break;

    case 'pgsql':
      db_change_column($ret, 'node_group', 'settings', 'settings', 'text', array('not null' => TRUE));
      break;
  }

  // move description into the settings array, and add new settings
  $result = db_query("SELECT * FROM {node_group}");
  while ($group = db_fetch_array($result)) {
    $settings = array();
    $settings['form'] = unserialize($group['settings']);
    $settings['form']['description'] = $group['description'];
    $settings['display'] = array('collapsible' => 0, 'collapsed' => 0, 'description' => '');
    $ret[] = update_sql("UPDATE {node_group} SET settings = '". db_escape_string(serialize($settings)) ."', description = '' WHERE group_name = '". $group['group_name'] ."'");
  }

  // drop description column
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql('ALTER TABLE {node_group} DROP description');
      break;

    case 'pgsql':
      // Postgres only supports dropping of columns since 7.4
      break;
  }

  return $ret;
}


/**
 * converts group settings collapsible/collapsed => style
 */
function fieldgroup_update_3() {
  $ret = array();
  $result = db_query("SELECT * FROM {node_group}");
  while ($group = db_fetch_array($result)) {
    $group['settings'] = unserialize($group['settings']);

    if (!isset($group['settings']['form']['style'])) {
      foreach (array('form', 'display') as $context) {
        if (isset($group['settings'][$context]['collapsible']) && $group['settings'][$context]['collapsible']) {
          if (isset($group['settings'][$context]['collapsed']) && $group['settings'][$context]['collapsed']) {
            $group['settings'][$context]['style'] = 'fieldset_collapsed';
          }
          else {
            $group['settings'][$context]['style'] = 'fieldset_collapsible';
          }
        }
        else {
          $group['settings'][$context]['style'] = 'fieldset';
        }
      }

      $ret[] = update_sql("UPDATE {node_group} SET settings = '". db_escape_string(serialize($group['settings'])) ."' WHERE group_name = '". $group['group_name'] ."'");
    }
  }

  return $ret;
}

/*
 * Increases module weight, so that other modules can form_alter() cck forms before the fields
 * are moved in groups
 */
function fieldgroup_update_4() {
  $ret = array();
  $ret[] = update_sql("UPDATE {system} SET weight = 9 WHERE name = 'fieldgroup'");
  return $ret;
}