comment_update_8006

gistfile1.php

<?php
/**
 * Adds comment fields for all node types.
 *
 * Field instance settings "comment_default_mode", "comment_default_per_page"
 * and "comment_form_location" are preserved to allow migrate contrib modules.
 */
function comment_update_8006(&$sandbox) {
  // Loop over defined node_types.
  $node_types = array_keys(_update_7000_node_get_types());
  foreach ($node_types as $node_type) {
    // COMMENT_OPEN
    $default_value = variable_get('comment_' . $node_type, 2);
    // Add a default comment field for existing node comments.
    $field = array(
      'cardinality' => '1',
      // We need one per content type to match the existing bundles.
      'field_name' => 'comment_node_' . $node_type,
      'module' => 'comment',
      'settings' => array(),
      'translatable' => '0',
      'type' => 'comment',
    );
    // Make sure field doesn't already exist.
    if (!_update_7000_field_read_fields(array('field_name' => $field['field_name']))) {
      // Create the field.
      _update_7000_field_create_field($field);
    }

    // Add the comment field, setting the instance settings to match those for
    // the give node_type.
    $instance_settings = array(
      // COMMENT_MODE_THREADED
      'comment_default_mode' => variable_get('comment_default_mode_' . $node_type, 1),
      'comment_default_per_page' => variable_get('comment_default_per_page_' . $node_type, 50),
      // COMMENT_FORM_BELOW
      'comment_form_location' => variable_get('comment_form_location' . $node_type, 1),
      // COMMENT_ANONYMOUS_MAYNOT_CONTACT
      'comment_anonymous' => variable_get('comment_anonymous_' . $node_type, 0),
      'comment_subject_field' => variable_get('comment_subject_field_' . $node_type, 1),
      // DRUPAL_OPTIONAL
      'comment_preview' => variable_get('comment_preview_' . $node_type, 1),
    );
    $instance = array(
      'bundle' => $node_type,
      'default_value' => array(array('comment' => $default_value)),
      'deleted' => '0',
      'description' => '',
      'entity_type' => 'node',
      'field_name' => $field['field_name'],
      'label' => 'Comment settings',
      'required' => 1,
      'settings' => array(
        'comment' => $instance_settings,
      ),
      'widget' => array(
        'active' => 0,
        'module' => 'comment',
        'settings' => array(),
        'type' => 'comment_default',
        'weight' => '50',
      ),
    );
    _update_7000_field_create_instance($field, $instance);

    // Prepare defaults for the default and full view modes.
    $formatter_settings = array(
      'default_mode' => $instance_settings['comment_default_mode'],
      'per_page' => $instance_settings['comment_default_per_page'],
      'form_location' => $instance_settings['comment_form_location'],
    );
    $display_options_default = array(
      'label' => 'hidden',
      'type' => 'comment_default',
      'weight' => 1,
      'settings' => $formatter_settings,
    );
    entity_get_display('node', $node_type, 'default')
      ->setComponent($field['field_name'], $display_options_default)
      ->save();
    entity_get_display('node', $node_type, 'full')
      ->setComponent($field['field_name'], $display_options_default)
      ->save();

    // Update all other entity displays with custom settings.
    $display_options = array(
      'type' => 'hidden',
      'label' => 'hidden',
    );
    foreach (entity_get_view_modes('node') as $view_mode => $view_mode_settings) {
      if ($view_mode != 'full') {
        entity_get_display('node', $node_type, $view_mode)
          ->setComponent($field['field_name'], $display_options)
          ->save();
      }
    }

    // Clean up old variables.
    variable_del('comment_' . $node_type);
    variable_del('comment_default_mode_' . $node_type);
    variable_del('comment_default_per_page_' . $node_type);
    variable_del('comment_anonymous_' . $node_type);
    variable_del('comment_subject_field_' . $node_type);
    variable_del('comment_form_location_' . $node_type);
    variable_del('comment_preview_' . $node_type);
  }
  $t = get_t();
  return $t('Created required fields for each comment bundle');
}