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<?php
declare(strict_types=1);
namespace Mautic\IntegrationsBundle\Migration;
use Doctrine\DBAL\Schema\Schema;
use Doctrine\ORM\EntityManager;
abstract class AbstractMigration implements MigrationInterface
{
/**
* @var string[]
*/
private array $queries = [];
public function __construct(
protected EntityManager $entityManager,
protected string $tablePrefix
) {
}
public function shouldExecute(): bool
{
return $this->isApplicable($this->entityManager->getConnection()->createSchemaManager()->introspectSchema());
}
/**
* @throws \Doctrine\DBAL\Exception
*/
public function execute(): void
{
$this->up();
if (!$this->queries) {
return;
}
$connection = $this->entityManager->getConnection();
foreach ($this->queries as $sql) {
$stmt = $connection->prepare($sql);
$stmt->executeStatement();
}
}
/**
* Generate the ALTER TABLE query that adds the foreign key.
*
* @param string[] $columns
* @param string[] $referenceColumns
* @param string $suffix usually a 'ON DELETE ...' statement
*/
protected function generateAlterTableForeignKeyStatement(
string $table,
array $columns,
string $referenceTable,
array $referenceColumns,
string $suffix = ''
): string {
return "ALTER TABLE {$this->concatPrefix($table)}
ADD CONSTRAINT {$this->generatePropertyName($table, 'fk', $columns)}
FOREIGN KEY ({$this->columnsToString($columns)})
REFERENCES {$this->concatPrefix($referenceTable)} ({$this->columnsToString($referenceColumns)}) {$suffix}
";
}
/**
* @param string[] $columns
*/
protected function generateIndexStatement(string $table, array $columns): string
{
return "INDEX {$this->generatePropertyName($table, 'idx', $columns)} ({$this->columnsToString($columns)})";
}
/**
* @param string[] $columns
*/
protected function columnsToString(array $columns): string
{
return implode(',', $columns);
}
/**
* Generate the name for the property.
*
* This method was copied from AbstractMauticMigration.
*
* @param string[] $columnNames
*/
protected function generatePropertyName(string $table, string $type, array $columnNames): string
{
$columnNames = array_merge([$this->tablePrefix.$table], $columnNames);
$hash = implode(
'',
array_map(
fn ($column): string => dechex(crc32($column)),
$columnNames
)
);
return substr(strtoupper($type.'_'.$hash), 0, 63);
}
protected function addSql(string $sql): void
{
$this->queries[] = $sql;
}
/**
* Concatenates table/index prefix to the provided name.
*/
protected function concatPrefix(string $name): string
{
return $this->tablePrefix.$name;
}
/**
* Define in the child migration whether the migration should be executed.
* Check if the migration is applied in the schema already.
*/
abstract protected function isApplicable(Schema $schema): bool;
/**
* Define queries for migration up.
*/
abstract protected function up(): void;
}
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