/**
* Main method builds all the targets for a typical propel project.
*/
public function main()
{
// check to make sure task received all correct params
$this->validate();
$generatorConfig = $this->getGeneratorConfig();
// loading model from database
$this->log('Reading databases structure...');
$connections = $generatorConfig->getBuildConnections();
if (!$connections) {
throw new Exception('You must define database connection settings in a buildtime-conf.xml file to use diff');
}
$manager = new PropelMigrationManager();
$manager->setConnections($connections);
$manager->setMigrationDir($this->getOutputDirectory());
$manager->setMigrationTable($this->getGeneratorConfig()->getBuildProperty('migrationTable'));
if ($manager->hasPendingMigrations()) {
throw new Exception('Uncommitted migrations have been found ; you should either execute or delete them before rerunning the \'diff\' task');
}
$totalNbTables = 0;
$ad = new AppData();
foreach ($connections as $name => $params) {
$this->log(sprintf('Connecting to database "%s" using DSN "%s"', $name, $params['dsn']), Project::MSG_VERBOSE);
$pdo = $generatorConfig->getBuildPDO($name);
$database = new Database($name);
$platform = $generatorConfig->getConfiguredPlatform($pdo);
if (!$platform->supportsMigrations()) {
$this->log(sprintf('Skipping database "%s" since vendor "%s" does not support migrations', $name, $platform->getDatabaseType()));
continue;
}
$database->setPlatform($platform);
$database->setDefaultIdMethod(IDMethod::NATIVE);
$parser = $generatorConfig->getConfiguredSchemaParser($pdo);
$nbTables = $parser->parse($database, $this);
$ad->addDatabase($database);
$totalNbTables += $nbTables;
$this->log(sprintf('%d tables found in database "%s"', $nbTables, $name), Project::MSG_VERBOSE);
}
if ($totalNbTables) {
$this->log(sprintf('%d tables found in all databases.', $totalNbTables));
} else {
$this->log('No table found in all databases');
}
// loading model from XML
$this->packageObjectModel = true;
$appDatasFromXml = $this->getDataModels();
$appDataFromXml = array_pop($appDatasFromXml);
// comparing models
$this->log('Comparing models...');
$migrationsUp = array();
$migrationsDown = array();
foreach ($ad->getDatabases() as $database) {
$name = $database->getName();
$this->log(sprintf('Comparing database "%s"', $name), Project::MSG_VERBOSE);
if (!$appDataFromXml->hasDatabase($name)) {
// FIXME: tables present in database but not in XML
continue;
}
$databaseDiff = PropelDatabaseComparator::computeDiff($database, $appDataFromXml->getDatabase($name), $this->isCaseInsensitive());
if (!$databaseDiff) {
$this->log(sprintf('Same XML and database structures for datasource "%s" - no diff to generate', $name), Project::MSG_VERBOSE);
continue;
}
$this->log(sprintf('Structure of database was modified in datasource "%s": %s', $name, $databaseDiff->getDescription()));
$platform = $generatorConfig->getConfiguredPlatform(null, $name);
$migrationsUp[$name] = $platform->getModifyDatabaseDDL($databaseDiff);
$migrationsDown[$name] = $platform->getModifyDatabaseDDL($databaseDiff->getReverseDiff());
}
if (!$migrationsUp) {
$this->log('Same XML and database structures for all datasource - no diff to generate');
return;
}
$timestamp = time();
$migrationFileName = $manager->getMigrationFileName($timestamp);
$migrationClassBody = $manager->getMigrationClassBody($migrationsUp, $migrationsDown, $timestamp);
$_f = new PhingFile($this->getOutputDirectory(), $migrationFileName);
file_put_contents($_f->getAbsolutePath(), $migrationClassBody);
$this->log(sprintf('"%s" file successfully created in %s', $_f->getName(), $_f->getParent()));
if ($editorCmd = $this->getEditorCmd()) {
$this->log(sprintf('Using "%s" as text editor', $editorCmd));
shell_exec($editorCmd . ' ' . escapeshellarg($_f->getAbsolutePath()));
} else {
$this->log(' Please review the generated SQL statements, and add data migration code if necessary.');
$this->log(' Once the migration class is valid, call the "migrate" task to execute it.');
}
}
