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Drop target database schema before next run #10

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Drop target database schema before next run #10

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12 changes: 12 additions & 0 deletions src/Command/RunCommand.php
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ConfirmationQuestion;
use Symfony\Component\Console\Style\SymfonyStyle;

class RunCommand extends FinishCommand
Expand Down Expand Up @@ -100,6 +101,17 @@ protected function execute(InputInterface $input, OutputInterface $output)
return -1;
}

if (!$this->schemaManipulator->isTargetSchemaEmpty()) {
$io->warning('Target database schema is not empty');
$helper = $this->getHelper('question');
$question = new ConfirmationQuestion('Drop target database schema? (y/n) ', false);
if ($helper->ask($input, $output, $question)) {
$io->text('Dropping database schema...');
$this->schemaManipulator->dropTargetSchema();
$io->success('Target database schema dropped successfully!');
}
}

try {
$this->schemaManipulator->copySchemaDroppingIndexesAndForeignKeys();
$this->recipe = $this->recipeFactory
Expand Down
22 changes: 22 additions & 0 deletions src/Fogger/Schema/SchemaManipulator.php
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,28 @@ public function __construct(Connection $source, Connection $target)
$this->targetSchema = $target->getSchemaManager();
}

/**
* @return bool
*/
public function isTargetSchemaEmpty()
{
return empty($this->targetSchema->listTableNames());
}

public function dropTargetSchema()
{
/** @var DBAL\Table[] $tables */
$tables = $this->targetSchema->listTables();
foreach ($tables as $table) {
foreach ($table->getForeignKeys() as $fk) {
$this->targetSchema->dropForeignKey($fk->getName(), $table->getName());
}
}
foreach ($tables as $table) {
$this->targetSchema->dropTable($table);
}
}

/**
* @throws DBAL\SchemaException
*/
Expand Down