skipAssertion( fn (Schema $schema) => $schema->getTable($this->getTableName())->hasIndex($this->getIndexName()), "Index {$this->getIndexName()} already exists" ); } public function up(Schema $schema): void { $this->addSql("CREATE INDEX {$this->getIndexName()} ON {$this->getTableName()} (alias)"); } public function down(Schema $schema): void { $this->addSql("DROP INDEX {$this->getIndexName()} ON {$this->getTableName()}"); } private function getTableName(): string { return "{$this->prefix}lead_lists"; } private function getIndexName(): string { return "{$this->prefix}lead_list_alias"; } }