/**
* Update the database structure if needed. This function includes all
* the incremental steps needed to bring the database up to the latest
* standard.
* Basically, this function is a big switch on the data version value
* with each case falling through to the next one.
*/
public static function updateTables($dataVersion)
{
switch ($dataVersion) {
case "":
case "v0.1":
// No data version yet - create initial table
if (!Trip::createTripTable()) {
return false;
}
case "v0.2":
if (!Trip::createTripAttributeTable()) {
return false;
}
break;
case "v0.3":
case "v0.4":
case "v0.5":
case "v0.6":
case "v0.7":
case "v0.8":
case "v0.9":
case "v0.10":
if (!Trip::addDeletedColumn()) {
return false;
}
case "v0.11":
case "v0.12":
case "v0.13":
case "v0.14":
case "v0.15":
if (!Trip::addDescriptionColumn()) {
return false;
}
if (!Trip::addBannerImgColumn()) {
return false;
}
case "v0.16":
// current version
break;
default:
// no provision for this version, should not happen
print "Trip::updateTables({$dataVersion}): don't know this version.\n";
return false;
}
return true;
}