<?php

/**
 * @file
 * Defines simple iframe field types.
 *  based on the cck-module "link" by quicksketch
 * Functions for install and uninstall AND Migrations
 */

function iframe_requirements($phase) {
  $requirements = array();
  // Ensure translations don't break at install time
  $t = get_t();
  if (!module_exists('content') || !function_exists('content_notify')) {
    $requirements['iframe'] = array(
      'title' => $t('CCK needed'),
      'description' => $t("CCK module \"content\" required."),
      'severity' => REQUIREMENT_ERROR,
    );
  }
  return $requirements;
}

/**
 * Implementation of hook_install().
 */
function iframe_install() {
  if (!module_exists('content') || !function_exists('content_notify')) {
    $ret['#abort'] = array('success' => FALSE, 'query' => t('Required module "content" (cck) not found!'));
    return $ret;
  }
  content_notify('install', 'iframe');
}

/**
 * Implementation of hook_uninstall().
 */
function iframe_uninstall() {
  if (module_exists('content') && function_exists('content_notify')) {
    content_notify('uninstall', 'iframe');
  }
}

/**
 * Implementation of hook_enable().
 */
function iframe_enable() {
  if (!module_exists('content') || !function_exists('content_notify')) {
    $ret['#abort'] = array('success' => FALSE, 'query' => t('Required module "content" (cck) not found!'));
    return $ret;
  }
  content_notify('enable', 'iframe');
}

/**
 * Implementation of hook_disable().
 */
function iframe_disable() {
  if (module_exists('content') && function_exists('content_notify')) {
    content_notify('disable', 'iframe');
  }
}

/**
 * Removed iframe.module created tables, move data to content.module tables
 * attributes will contain width,heigth,...
 */
function iframe_update_1() {
  $ret = array();

  include_once(drupal_get_path('module', 'content') . '/content.module');
  include_once(drupal_get_path('module', 'content') . '/includes/content.admin.inc');

  $fields = content_fields();

  if (FALSE) foreach ($fields as $field) {
    switch ($field['type']) {
      case 'iframe':
        $columns = array(
          'url' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => "''"),
          'title' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => "''"),
          'attributes' => array('type' => 'mediumtext', 'not null' => FALSE),
          'width' => array('type' => 'mediumtext', 'not null' => FALSE),
          'height' => array('type' => 'mediumtext', 'not null' => FALSE),
        );

        // content_alter_db_field(array(), array(), $field, $columns);
        content_alter_db($columns['url'], $columns['url']);
        content_alter_db($columns['title'], $columns['title']);
        content_alter_db($columns['attributes'], $columns['attributes']);
        content_alter_db($columns['width'], '');
        content_alter_db($columns['height'], '');

        $db_info = content_database_info($field);
        if ($field['multiple']) {
          $ret[] = update_sql('INSERT INTO {' . $db_info['table'] . '} (vid, delta, nid, ' .
            $field['field_name'] . '_url, ' .
            $field['field_name'] . '_title, ' .
            $field['field_name'] . '_attributes) ' .
            'SELECT vid, delta, nid, ' .
            'field_url, ' .
            'field_title, ' .
            'attributes FROM {node_field_iframe_data} ' .
            'WHERE field_name = "' . $field['field_name'] . '"');
        }
        else {
          $ret[] = update_sql('UPDATE {' . $db_info['table'] . '} c, {node_field_iframe_data} l SET ' .
            'c.' . $field['field_name'] . '_url = l.field_url, ' .
            'c.' . $field['field_name'] . '_title = l.field_title, ' .
            'c.' . $field['field_name'] . '_attributes = l.attributes ' .
            'WHERE l.field_name = "' . $field['field_name'] . '" AND c.vid = l.vid AND c.nid = l.nid');
        }
    }
  }

  //$ret[] = update_sql('DROP TABLE {node_field_iframe_data}');

  $ret[] = update_sql('DELETE FROM {cache}');
  return $ret;
}

/**
 * Increase size of url-field to 1024 chars
 */
function iframe_update_6010() {
  $ret = array();

  include_once(drupal_get_path('module', 'content') . '/content.module');
  include_once(drupal_get_path('module', 'content') . '/includes/content.admin.inc');
  include_once(drupal_get_path('module', 'content') . '/includes/content.crud.inc');

  /* 1. update the general settings for iframe-field */
  $fields = content_fields();

  foreach ($fields as $field) {
    switch ($field['type']) {
      case 'iframe':
        $field_name = $field['field_name'];
        $field['columns']['url']['length'] = 1024;

        content_field_instance_update($field);
    }
  }

  $ret[] = update_sql('DELETE FROM {cache}');
  return $ret;
}