weight.install in Weight 7.3

Install, update, and uninstall functions for the Weight module.

File

weight.install

<?php

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

/**
 * Implements hook_field_schema().
 */
function weight_field_schema($field) {
  return array(
    'columns' => array(
      'value' => array(
        'type' => 'int',
        'not null' => TRUE,
      ),
    ),
    'indexes' => array(
      'value' => array(
        'value',
      ),
    ),
  );
}

/**
 * Create a Weight field for each enabled content type.
 */
function weight_update_7300() {
  field_cache_clear();
  $field_name = 'field_weight';
  $node_types = node_type_get_names();

  // Check for weight_settings table, then create a weight field for each
  // content type that has weight enabled.
  if (db_table_exists('weight_settings')) {
    $types = db_select('weight_settings', 'ws')
      ->fields('ws')
      ->execute();

    // Make sure the field name doesn't exist.
    $field = field_read_field($field_name, array(
      'include_inactive' => TRUE,
    ));
    if (!empty($field)) {
      $i = 2;
      while ($field = field_read_field($field_name . $i, array(
        'include_inactive' => TRUE,
      ))) {
        $i++;
      }
      $field_name = $field_name . $i;
    }
    $field = array(
      'field_name' => $field_name,
      'type' => 'weight',
    );
    field_create_field($field);
    foreach ($types as $type) {
      if ($type->weight_enabled && array_key_exists($type->type, $node_types)) {
        $instance = array(
          'field_name' => $field_name,
          'entity_type' => 'node',
          'label' => t('Weight'),
          'bundle' => $type->type,
          'settings' => array(
            'range' => $type->weight_range,
          ),
          'widget' => array(
            'type' => 'weight_selector',
          ),
        );
        field_create_instance($instance);
      }
    }
  }
  $_SESSION['weight_field_name'] = $field_name;
}

/**
 * Migrate weights to Weight field.
 */
function weight_update_7301(&$sandbox) {
  $field_name = $_SESSION['weight_field_name'];

  // Check for weight_weights table.
  if (db_table_exists('weight_weights')) {
    if (!isset($sandbox['progress'])) {
      $sandbox['progress'] = 0;
      $sandbox['last'] = 0;
      $sandbox['max'] = db_query("SELECT COUNT(entity_id) FROM {weight_weights}")
        ->fetchField();
    }
    $weights = db_select('weight_weights', 'w')
      ->fields('w')
      ->condition('entity_id', $sandbox['last'], '>')
      ->orderBy('entity_id')
      ->range(0, 10)
      ->execute();
    foreach ($weights as $weight) {
      if ($node = node_load($weight->entity_id)) {
        $node->{$field_name}[$node->language][0]['value'] = $weight->weight;
        node_save($node);
      }
      $sandbox['progress']++;
      $sandbox['last'] = $weight->entity_id;
    }
    $sandbox['#finished'] = empty($sandbox['max']) ? 1 : $sandbox['progress'] / $sandbox['max'];
  }
}

Functions

Name	Description
weight_field_schema	Implements hook_field_schema().
weight_update_7300	Create a Weight field for each enabled content type.
weight_update_7301	Migrate weights to Weight field.