/**
* Internal function to parse and handle the DBSchema in the component.xml file.
* This is used for installations and upgrades.
*
* @param boolean $install Set to false to force uninstall/disable mode.
* @param int $verbosity (default 0) 0: standard output, 1: real-time, 2: real-time verbose output.
*
* @throws DMI_Query_Exception
* @throws Exception
* @return boolean | int
*/
public function _parseDBSchema($install = true, $verbosity = 0) {
// I need to get the schema definitions first.
$node = $this->_xmlloader->getElement('dbschema');
$prefix = $node->getAttribute('prefix');
/** @var \Core\Datamodel\BackendInterface $db */
$db = \Core\db();
$changes = array();
Core\Utilities\Logger\write_debug('Installing database schema for ' . $this->getName());
// Get the table structure as it exists in the database first, this will be the comparison point.
$classes = $this->getModelList();
// Do the actual processing of every Model.
foreach ($classes as $m => $file) {
if(!class_exists($m)) require_once($file);
$schema = ModelFactory::GetSchema($m);
$tablename = $m::GetTableName();
if($verbosity == 2){
CLI::PrintActionStart('Processing database table ' . $tablename);
}
try{
if ($db->tableExists($tablename)) {
// modifyTable will not change the table if there are no changes to perform and
// will return a list of the changes for reporting reasons.
$res = $db->modifyTable($tablename, $schema);
if($res !== false){
// Changes detected!
$changes[] = 'Modified table ' . $tablename;
// $changes[] = '[' . $d['type'] . '] ' . $d['title'];
$changes = array_merge($changes, $res);
if($verbosity == 2){
CLI::PrintActionStatus('ok');
}
}
else{
// No changes detected.
if($verbosity == 2){
CLI::PrintActionStatus('skip');
}
}
}
else {
// Pass this schema into the DMI processor for create table.
\Core\db()->createTable($tablename, $schema);
$changes[] = 'Created table ' . $tablename;
if($verbosity == 2){
CLI::PrintActionStatus('ok');
}
}
}
catch(DMI_Query_Exception $e){
error_log($e->query . "\n<br/>(original table " . $tablename . ")");
// Append the table name since otherwise it may be "_tmptable"... which does not provide any useful information!
$e->query = $e->query . "\n<br/>(original table " . $tablename . ")";
//echo '<pre>' . $e->getTraceAsString() . '</pre>'; // DEBUG //
throw $e;
}
}
return sizeof($changes) ? $changes : false;
} // public function _parseDBSchema()