<?php

/**
 * @file
 * Installation functions for Feedback module.
 */

/**
 * Implements hook_schema().
 */
function feedback_schema() {
  $schema['feedback'] = array(
    'description' => 'Stores all feedback messages.',
    'fields' => array(
      'fid' => array(
        'description' => 'Feedback message ID.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'uid' => array(
        'description' => 'User ID of the feedback message author.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'status' => array(
        'description' => 'Feedback status (0 = new, 1 = processed).',
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'message' => array(
        'description' => 'The feedback message.',
        'type' => 'text',
        'size' => 'big',
        'not null' => TRUE,
      ),
      'location' => array(
        'description' => 'System path of the originating page.',
        'type' => 'text',
        'not null' => TRUE,
      ),
      'location_masked' => array(
        'description' => 'Untranslated system path of the originating page.',
        'type' => 'text',
        'not null' => TRUE,
      ),
      'url' => array(
        'description' => 'Absolute URL of the originating page.',
        'type' => 'text',
        'not null' => TRUE,
      ),
      'useragent' => array(
        'description' => 'User agent of the feedback message author.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
      ),
      // @todo Rename to created. Also add 'changed'.
      'timestamp' => array(
        'description' => 'UNIX timestamp of the feedback message creation date.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array('fid'),
    'indexes' => array(
      'location' => array(array('location', 32)),
      'location_masked' => array(array('location_masked', 32)),
    ),
  );
  return $schema;
}

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

/**
 * Change fid into type serial field.
 */
function feedback_update_6100() {
  db_drop_primary_key('feedback');
  db_change_field('feedback', 'fid', 'fid', array(
    'type' => 'serial',
    'unsigned' => TRUE,
    'not null' => TRUE,
  ), array(
    'primary key' => array('fid'),
  ));
}

/**
 * Add column for absolute URL.
 */
function feedback_update_6101() {
  db_add_field('feedback', 'url', array(
    'type' => 'text',
    'not null' => TRUE,
  ));
  // Set 'url' to the value of 'location' for all existing entries.
  db_update('feedback')
    ->expression('url', 'location')
    ->execute();
}