<?php

/**
 * @file
 * Install, update and uninstall functions for the Maxlength module.
 */

/**
 * @todo: Migrate node title
 * @todo: Should we use maxlength_ for hook_uninstall instead of maxlength_js_.
 */


/**
 * Implements hook_uninstall().
 */
function maxlength_uninstall() {
  db_delete('variable')
    ->condition('name', db_like('maxlength_js_') . '%', 'LIKE')
    ->execute();
}

/**
 * Implements hook_update_N().
 *
 * Migrate from maxlength2 to maxlength3.
 */
function maxlength_update_7300() {
  $ret = array();
  // Migrate node body.
  foreach (node_type_get_names() as $type => $name) {
    $maxlength = variable_get('maxlength_body_' . $type, 0);
    variable_del('maxlength_body_' . $type);
    $label = variable_get('maxlength_body_text_' . $type, 0);
    variable_del('maxlength_body_text_' . $type);

    if ($maxlength) {
      $instance = field_read_instance('node', 'body', $type);
      // Body is a text_textarea_with_summary.
      $instance['widget']['settings']['maxlength_js'] = $maxlength;
      $instance['widget']['settings']['maxlength_js_label'] = $label;
      field_update_instance($instance);
    }
  }
}


/**
 * Implements hook_update_N().
 *
 * migrate fieldapi fields
 */
function maxlength_update_7301() {
  $ret = array();
  // The 7.x-2.x seems to support only global settings for fields not per instance
  // so setup the maxlength for each instance of the field.
  foreach (field_read_fields() as $field) {
    if (!empty($field['settings']['max_length'])) {
      $maxlength = $field['settings']['max_length'];
      $instances = field_read_instances(array('entity_type' => $entity_type, 'field_name' => $field_name, 'bundle' => $bundle));
      foreach ($instances as $instance) {
        $instance['widget']['settings']['maxlength_js'] = $maxlength;
      }
    }
  }

  return $ret;
}

/**
 * Implements hook_update_N().
 *
 * Migrate comment settings.
 */
function maxlength_update_7302() {
  $ret = array();
  // Migrate node body.
  foreach (node_type_get_names() as $type => $name) {
    $maxlength = variable_get('maxlength_comment_comment_' . $type, 0);
    variable_del('maxlength_comment_comment_' . $type);
    $label = variable_get('maxlength_comment_comment_text_' . $type, 0);
    variable_del('maxlength_comment_comment_text_' . $type);
    if ($maxlength) {
      $instance = field_read_instance('comment', 'comment_body', $type);
      // Body is a text_textarea_with_summary.
      $instance['widget']['settings']['maxlength_js'] = $maxlength;
      $instance['widget']['settings']['maxlength_js_label'] = $label;
      field_update_instance($instance);
    }
  }
}