{"record":{"id":"95759aebec229e0b","repo":"SeaQL/sea-orm","slug":"there-is-no-open-transaction-to-commit","errorCode":null,"errorMessage":"There is no open transaction to commit","messagePattern":"There is no open transaction to commit","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"sea-orm-sync/src/database/mock.rs","lineNumber":196,"sourceCode":"    #[instrument(level = \"trace\")]\n    fn begin(&mut self) {\n        match self.transaction.as_mut() {\n            Some(transaction) => transaction.begin_nested(self.db_backend),\n            None => self.transaction = Some(OpenTransaction::init()),\n        }\n    }\n\n    #[instrument(level = \"trace\")]\n    fn commit(&mut self) {\n        match self.transaction.as_mut() {\n            Some(transaction) => {\n                if transaction.commit(self.db_backend) {\n                    if let Some(transaction) = self.transaction.take() {\n                        self.transaction_log.push(transaction.into_transaction());\n                    }\n                }\n            }\n            None => panic!(\"There is no open transaction to commit\"),\n        }\n    }\n\n    #[instrument(level = \"trace\")]\n    fn rollback(&mut self) {\n        match self.transaction.as_mut() {\n            Some(transaction) => {\n                if transaction.rollback(self.db_backend) {\n                    if let Some(transaction) = self.transaction.take() {\n                        self.transaction_log.push(transaction.into_transaction());\n                    }\n                }\n            }\n            None => panic!(\"There is no open transaction to rollback\"),\n        }\n    }\n\n    fn drain_transaction_log(&mut self) -> Vec<Transaction> {","sourceCodeStart":178,"sourceCodeEnd":214,"githubUrl":"https://github.com/SeaQL/sea-orm/blob/e29bcd1b417c41a553b386fe94511d7c64a1c8ec/sea-orm-sync/src/database/mock.rs#L178-L214","documentation":"In the mock database, commit() finalizes the currently open transaction. It panics when no transaction is open (self.transaction is None), meaning commit() was called without a matching begin(). This catches unbalanced begin/commit pairs in code under test.","triggerScenarios":"Calling MockDatabaseConnection's commit when no begin() was issued; calling commit() twice; a rollback already closed the transaction before commit() ran.","commonSituations":"Application code calling commit without an explicit transaction on the mock (mock requires explicit begin); test asserting on transaction log after a failed begin; double-commit in error-retry paths.","solutions":["Call begin() on the mock connection before commit()","Ensure each transaction has exactly one commit or rollback in all code paths (including error paths)","Check whether an earlier rollback already ended the transaction before committing"],"exampleFix":"// before\nconn.execute(stmt).unwrap();\nconn.commit(); // panics: no open transaction\n// after\nconn.begin();\nconn.execute(stmt).unwrap();\nconn.commit(); // ok","handlingStrategy":"validation","validationCode":"// ensure a transaction is open: call begin() before commit(); in tests assert balanced lifecycle\nconn.begin();\n// ... statements ...\nconn.commit();","typeGuard":null,"tryCatchPattern":"std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| conn.commit())).err()\n    .map(|_| eprintln!(\"commit called without an open transaction\"));","preventionTips":["Pair every begin() with exactly one commit()/rollback(), including error paths","Use a guard type (Drop impl) that rolls back on unwind if the mock supports it","In tests, mirror the real transaction lifecycle step by step"],"tags":["panic","transaction","mock","testing"],"backgroundTag":"invalid-state-transition","analyzedSha":"e29bcd1b417c41a553b386fe94511d7c64a1c8ec","analyzedAt":"2026-09-10T11:31:52.468Z","contentChangedAt":"2026-09-10T11:31:52.468Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}