function perform_upgrade_step($HTTP_VARS, $opendb_release_r, $latest_to_version = NULL)
{
if (is_upgrader_plugin($HTTP_VARS['upgrader_plugin'])) {
include_once './install/upgrade/' . $HTTP_VARS['upgrader_plugin'] . '.class.php';
$upgraderRef = $HTTP_VARS['upgrader_plugin'];
$upgraderPlugin = new $upgraderRef();
if (!is_array($opendb_release_r) || !is_numeric($opendb_release_r['upgrade_step'])) {
if ($latest_to_version == $upgraderPlugin->getToVersion()) {
$to_version = $latest_to_version;
} else {
$to_version = $upgraderPlugin->getToVersion();
}
$description = 'Upgrade from ' . $opendb_release_r['release_version'] . ' to ' . $to_version;
// insert release record now.
if (!is_exists_opendb_release_version($to_version)) {
insert_opendb_release($to_version, $description, '0');
$opendb_release_r = fetch_opendb_release_version_r(FALSE);
}
}
$upgrade_step = $opendb_release_r['upgrade_step'];
// first step
if ($upgrade_step == 0) {
$upgrade_step = 1;
}
if (is_numeric($opendb_release_r['upgrade_step_part']) && $opendb_release_r['upgrade_step_part'] > 0) {
$upgrade_step_part = $opendb_release_r['upgrade_step_part'];
} else {
$upgrade_step_part = 1;
}
$remaining_count = -1;
if ($HTTP_VARS['confirm_step'] == $upgrade_step) {
if ($upgraderPlugin->isStepSkippable($upgrade_step) && strcasecmp($HTTP_VARS['skipStep'], 'true') === 0) {
$step_result = TRUE;
} else {
$step_result = $upgraderPlugin->executeStep($upgrade_step, $upgrade_step_part - 1);
}
if ($step_result === TRUE) {
$upgrade_step += 1;
$upgrade_step_part = 1;
if ($upgrade_step <= $upgraderPlugin->getNoOfSteps()) {
// complete step and move onto next one.
update_opendb_release_step($opendb_release_r['release_version'], $upgrade_step);
} else {
// we have finished the installation process with this call
update_opendb_release_step($opendb_release_r['release_version'], NULL);
}
} else {
if (is_numeric($step_result)) {
$upgrade_step_part += 1;
update_opendb_release_step($opendb_release_r['release_version'], $upgrade_step, $upgrade_step_part);
// specified number of steps to complete
if ($step_result > 0) {
$remaining_count = $step_result;
}
}
}
}
if ($upgrade_step <= $upgraderPlugin->getNoOfSteps()) {
echo "<h2>" . $opendb_release_r['description'] . "</h2>";
echo "\n<form action=\"{$PHP_SELF}\" method=\"GET\">" . "<input type=\"hidden\" name=\"step\" value=\"upgrade\">";
echo "<input type=\"hidden\" name=\"upgrader_plugin\" value=\"" . $HTTP_VARS['upgrader_plugin'] . "\">";
$step_title = $upgraderPlugin->getStepTitle($upgrade_step);
$step_notes = NULL;
if (is_numeric($upgrade_step_part) && $upgrade_step_part > 1) {
if ($remaining_count > 0) {
$step_title .= " (Part " . $upgrade_step_part . " of " . ($upgrade_step_part + $remaining_count) . ")";
} else {
$step_title .= " (Part " . $upgrade_step_part . " of ?)";
$step_notes = "Due to limitations in the installer there are an unknown number of parts for this step, please continue\n\t\t\t\t\t\t\t\t\texecuting the step until it is complete.";
}
}
echo "<h3>" . $step_title . "</h3>";
if (strlen($step_notes) > 0) {
echo "<p class=\"help\">{$step_notes}</p>";
}
if (is_array($upgraderPlugin->getErrors())) {
echo format_error_block($upgraderPlugin->getErrors());
}
$description = $upgraderPlugin->getStepDescription($upgrade_step);
if (strlen($description) > 0) {
echo '<p>' . $description . '</p>';
}
echo "<input type=\"hidden\" name=\"confirm_step\" value=\"{$upgrade_step}\">\n\t\t\t<input type=\"button\" class=\"button\" name=\"execute\" value=\"Execute Step\" onclick=\"this.value='Working...'; this.disabled=true; this.form.submit(); return true;\">\n";
if ($upgraderPlugin->isStepSkippable($upgrade_step)) {
echo "<input type=\"checkbox\" class=\"checkbox\" name=\"skipStep\" value=\"true\" onclick=\"if(this.checked){this.form['execute'].value='Skip Step';}else{this.form['execute'].value='Execute Step';}}\">Skip Step";
}
echo "</form>";
return 'INCOMPLETE';
} else {
//if($upgrade_step <= $upgraderPlugin->getNoOfSteps())
return TRUE;
}
} else {
return FALSE;
}
}
/**
Get the last record added to the database.
@param $upgrade_steps_complete - if TRUE, then get last s_opendb_release record, where upgrade_step IS NULL
*/
function fetch_opendb_release_version($upgrade_steps_complete = TRUE)
{
$record_r = fetch_opendb_release_version_r($upgrade_steps_complete);
if (is_array($record_r)) {
return $record_r['release_version'];
} else {
return FALSE;
}
}
