system_update_7008

• Drupal 7

• View documentation
• List references

Definition

system_update_7008()
modules/system/system.install, line 3010

Description

Use the poll_choice primary key to record votes in poll_votes rather than the choice order. Rename chorder to weight.

Code

<?php
function system_update_7008() {
  $ret = array();
  if (db_table_exists('poll_votes')) {
    // Add chid column and convert existing votes.
    db_add_field($ret, 'poll_votes', 'chid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0));
    db_add_index($ret, 'poll_votes', 'chid', array('chid'));
    $ret[] = update_sql("UPDATE {poll_votes} v SET chid = (SELECT chid FROM {poll_choices} c WHERE v.chorder = c.chorder AND v.nid = c.nid)");
    // Remove old chorder column.
    db_drop_field($ret, 'poll_votes', 'chorder');
  }
  if (db_table_exists('poll_choices')) {
    // Change the chorder column to weight in poll_choices.
    db_change_field($ret, 'poll_choices', 'chorder', 'weight', array('type' => 'int', 'not null' => TRUE, 'default' => 0, 'size' => 'tiny'));
  }
  return $ret;
}
?>