<?php

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

/**
 * Implements hook_schema().
 */
function uc_stock_schema() {
  $schema = array();

  $schema['uc_product_stock'] = array(
    'description' => 'Stock levels for Ubercart products.',
    'fields' => array(
      'sku' => array(
        'description' => 'SKU (Stock Keeping Unit) of a product.',
        'type' => 'varchar',
        'length' => '191',
        'not null' => TRUE,
        'default' => '',
      ),
      'nid' => array(
        'description' => 'Node ID of a product.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'active' => array(
        'description' => 'Boolean flag indicating whether stock is being tracked for this product. 1 => Yes. 0 => No.',
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'stock' => array(
        'description' => 'Quantity in stock.',
        'type' => 'int',
        'size' => 'medium',
        'not null' => TRUE,
        'default' => 0,
      ),
      'threshold' => array(
        'description' => 'Minimum quantity threshold level.',
        'type' => 'int',
        'size' => 'medium',
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'indexes' => array(
      'nid' => array('nid'),
    ),
    'primary key' => array('sku'),
    'foreign keys' => array(
      'uc_products' => array(
        'table' => 'uc_products',
        'columns' => array('nid' => 'nid'),
      ),
    ),
  );

  return $schema;
}