Create a migration command to migrate the data from V2 to V3 #38
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WalkthroughThis pull request introduces a comprehensive set of changes to the Mr. Scrooge server, focusing on database migration functionality, error handling, and model enhancements. The modifications include adding a new migration service for transitioning data from version 2, expanding error codes, introducing optional fields in bank transaction models, and updating various configuration and test files to support the migration process. Additionally, it enhances testing capabilities by including a new SQLite resource file. Changes
Sequence DiagramsequenceDiagram
participant User
participant V2MigrateCommand
participant DjangoMigrationService
participant Database
User->>V2MigrateCommand: Execute migration
V2MigrateCommand->>Database: Connect to old database
V2MigrateCommand->>DjangoMigrationService: Initialize migration
DjangoMigrationService->>Database: Migrate tags to labels
DjangoMigrationService->>Database: Migrate rules
DjangoMigrationService->>Database: Migrate transactions
DjangoMigrationService->>Database: Migrate graphs
V2MigrateCommand->>User: Display migration complete
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Actionable comments posted: 5
🧹 Nitpick comments (10)
src/swift-server/django-migration/django-migration.service.swift (2)
174-175: Address the TODO for transforming parent-child relationships.There's a TODO comment indicating that transforming the parent-child relation is missing in the
migrateTagsToRulesfunction. This is crucial for maintaining data integrity during migration.Would you like assistance in implementing the parent-child relationship transformation? I can help draft the necessary code or open a GitHub issue to track this task.
549-556: Avoid extendingArraywith a custommapfunction that includes an index.Extending
Arraywith amapfunction that includes an index can lead to confusion and potential conflicts with existing standard library methods. Instead, consider using Swift's built-inenumerated()method to achieve similar functionality more idiomatically.Apply this diff to refactor the code:
-extension Array { - @inlinable public func map<T>(_ transform: (Element, Int) throws -> T) throws -> [T] { - var counter = Counter() - return try map { try transform($0, counter.next()) } - } -}Replace usages of the custom
mapfunction withenumerated().map:let newLabels = try tagsList.enumerated().map { index, tag in // existing transformation logic }src/swift-server/django-migration/v2-migrate.command.swift (2)
7-13: Consider adding validation for the oldDbUrl format.The command accepts a database URL without format validation. While the validation happens in
getDbConfig, early validation in the command would provide better user experience.@Argument(name: "dbUrl", help: "The url where to find the old Database") -var oldDbUrl: String +var oldDbUrl: String { + didSet { + guard oldDbUrl.starts(with: "sqlite://") || oldDbUrl.starts(with: "postgres://") else { + fatalError("Invalid database URL format. Must start with 'sqlite://' or 'postgres://'") + } + } +}
38-44: Add progress logging for long-running migrations.The migration process might take a while for large datasets, but there's no progress indication.
let migrator = DjangoMigrationService( owner: try groupOwner.requireID(), app: application, oldDb: sql) +context.console.print("Starting migration...") +context.console.print("Migrating tags to labels...") try await migrator.migrateTagsToLabels() +context.console.print("Migrating tags to rules...") try await migrator.migrateTagsToRules() +context.console.print("Migrating transactions...") try await migrator.migrateTransactions() +context.console.print("Migrating graphs...") try await migrator.migrateGraphs()src/swift-server/configure.swift (2)
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9-40: Enhance error context for database configuration failures.The error handling could be more informative by including additional context.
-throw Exception(.E10019, context: ["dbUrl": dbUrl]) +throw Exception(.E10019, context: [ + "dbUrl": dbUrl, + "supportedPrefixes": "sqlite://, postgres://", + "error": "Invalid database URL format" +])
73-73: Consider adding command documentation.The v2_migrate command is registered without any inline documentation about its usage.
-app.asyncCommands.use(V2MigrateCommand(), as: "v2_migrate") +// Register v2_migrate command for migrating data from MrScrooge V2 +// Usage: swift run MrScroogeServer v2_migrate <old-db-url> <group-owner-id> +app.asyncCommands.use(V2MigrateCommand(), as: "v2_migrate")src/swift-server-tests/migrate-v2-command.tests.swift (3)
35-40: Remove or uncomment the commented code.The file contains commented-out code blocks that should either be removed if unnecessary or uncommented if they provide value to the tests.
Also applies to: 49-53
44-44: Document magic numbers in assertions.Several assertions use magic numbers without explanation:
- 3 labels
- 3 rules
- 6 conditions
- 296 transactions
Consider adding comments explaining the expected counts or extracting them as named constants.
+// Expected counts from V2 database +private let expectedLabelCount = 3 +private let expectedRuleCount = 3 +private let expectedConditionCount = 6 +private let expectedTransactionCount = 296 -XCTAssertEqual(labels.count, 3, "Labels number is not valid") +XCTAssertEqual(labels.count, expectedLabelCount, "Labels number is not valid")Also applies to: 58-58, 68-69, 75-75
77-81: Remove commented-out filter condition.The commented-out filter condition on line 78 should be removed if unnecessary.
let november9Transaction = try await BankTransaction.query(on: app.db) - // .filter(\.$groupOwner.$id == groupId) .filter(\.$_date == "2019-11-09") .with(\.$labels) .first()README.md (1)
27-27: Fix markdown formatting.The emphasis markers should not have spaces inside them.
-** IMPORTANT ** +**IMPORTANT**🧰 Tools
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src/swift-server/bank-transaction/bank-transaction.models.swift
[Warning] 46-46: TODOs should be resolved (change the name to comment)
(todo)
src/swift-server-tests/migrate-v2-command.tests.swift
[Warning] 112-112: TODOs should be resolved (Add the validations)
(todo)
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README.md
27-27: null
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23-23: null
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🔇 Additional comments (15)
src/swift-server/django-migration/django-migration.service.swift (2)
34-47: Verify@unchecked Sendableconformance forTagModel.The
TagModelclass is marked as@unchecked Sendable, which tells the compiler to assume it's safe for concurrent use without verification. Ensure that all the stored properties ofTagModelare safe to access from multiple threads, and consider usingSendablewhere possible to let the compiler check for concurrency safety.
49-97: Verify@unchecked Sendableconformance forFilterModel.The
FilterModelclass is marked as@unchecked Sendable. Ensure that the properties and methods withinFilterModelare safe for concurrent use, and there are no race conditions or thread safety issues.src/swift-server/django-migration/v2-migrate.command.swift (1)
20-29: 🛠️ Refactor suggestionConsider adding error handling for database connection failures.
The code handles SQL database type mismatch but doesn't explicitly handle connection failures.
Add explicit error handling:
application.databases.use(dbFactory, as: oldDbId, isDefault: false) + +guard let _ = try? application.db(oldDbId).query("SELECT 1").wait() else { + throw Exception(.E10021, context: ["oldDbUrl": signature.oldDbUrl, "error": "Failed to connect to database"]) +}Package.swift (1)
101-101: Verify test database initialization.The old.sqlite3 test file is added but we should verify its initialization in tests.
✅ Verification successful
Test database resource is properly configured
The database file exists at the correct location and is properly configured as a processed resource in Package.swift. No additional initialization is required for test resources.
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src/swift-server/graph/graph.models.swift (3)
75-78: LGTM! Good abstraction for group labels.The introduction of
AbstractGroupLabelsprotocol promotes code reuse and consistency betweenGraphGroupLabelsandGraphHorizontalGroupLabels.
136-136: Verify protocol conformance implementation.Both
GraphGroupLabelsandGraphHorizontalGroupLabelsconform toAbstractGroupLabels, but their initializer signatures differ from the protocol requirement. The protocol requiresinit(graphId: Graph.IDValue, labelId: Label.IDValue, order: Int)but the implementations useGraphGroup.IDValueandGraphHorizontalGroup.IDValuerespectively.Please verify if this difference in ID types is intentional and doesn't cause type mismatches during migration.
Also applies to: 160-160
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126-126: LGTM! Simplified error handling.Good simplification by directly using
getApp()which already includes the necessary nil check.src/swift-server/core/error.swift (2)
5-7: LGTM! Comprehensive error codes for migration scenarios.The new error codes provide good coverage for various migration scenarios with clear, descriptive messages.
61-89:⚠️ Potential issueAdd missing error message for E10030.
Error code E10030 is defined in the enum but missing from the errorDictionary.
Add the missing entry:
.E10029: ErrorInfo(message: "Retrieving the groups of a graph, we get multiple groups"), .E10030: ErrorInfo( message: "We didn't found the group related to a graph in the old database"), + .E10031: ErrorInfo(message: "Your error message here"), ]Likely invalid or redundant comment.
src/swift-server-tests/migrate-v2-command.tests.swift (1)
112-112: Address the TODO comment.The TODO comment "Add the validations" should be addressed to ensure complete test coverage.
Would you like me to help implement the missing validations or create a GitHub issue to track this task?
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[Warning] 112-112: TODOs should be resolved (Add the validations)
(todo)
todo.md (1)
30-30: Verify if this task belongs in the current PR.This new task about creating and using enums in the database appears to be unrelated to the current PR's objective of creating a migration command from V2 to V3. Consider moving it to a separate PR or issue to maintain focus on the migration functionality.
README.md (2)
12-12: Verify QIF file format support status.The change from "credit" to "TBD" suggests that QIF file support is no longer available. Please clarify if this is temporary during migration or if support has been removed permanently.
16-24: LGTM! Clear migration instructions.The migration section provides clear step-by-step instructions with all necessary details for migrating from V2 to V3.
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src/swift-server-tests/app-test.swift (2)
126-126: LGTM! Good simplification of error handling.The change to use
getApp()directly removes redundant error checking while maintaining the same level of safety.
126-126: Consider adding migration-specific test cases.Given that this PR introduces a V2 to V3 migration command, consider adding test cases that verify:
- Data migration scenarios
- Edge cases during migration
- Validation of migrated data integrity
This will help ensure the reliability of the migration process.
Would you like me to help create test cases for the migration scenarios?
src/swift-server/django-migration/django-migration.service.swift
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Actionable comments posted: 2
🧹 Nitpick comments (9)
src/swift-server/django-migration/django-migration.service.swift (3)
548-555: Refactor to useenumerated()instead of custommapextensionThe custom
mapextension with an index parameter duplicates functionality provided by the standard library'senumerated()method. Utilizingenumerated()improves code readability and leverages well-tested standard library features.You can refactor the code as follows:
-public struct Counter { - var count: Int = 0 - public init() {} - @usableFromInline mutating func next() -> Int { - count = count + 1 - return count - } -} - -extension Array { - @inlinable public func map<T>(_ transform: (Element, Int) throws -> T) - throws -> [T] - { - var counter = Counter() - return try map { try transform($0, counter.next()) } - } -}Replace usage of the custom
mapwithenumerated():let newLabels = try tagsList.enumerated().map { index, tag in // Use index as needed }
65-68: Ensure locale-independent parsing ofDoublevalues fromStringThe
getCondDouble()method convertsconditionalstrings toDoubleusing the default initializer. This can lead to issues if the environment's locale uses a comma as the decimal separator.Modify the code to use a
NumberFormatterwith a fixed locale:func getCondDouble() throws -> Double { - if let d = Double(conditional) { + let formatter = NumberFormatter() + formatter.locale = Locale(identifier: "en_US_POSIX") + if let d = formatter.number(from: conditional)?.doubleValue { return d } throw Exception(.E10023, context: ["filterId": id as Any, "tagId": tagId]) }This ensures consistent parsing of numeric strings regardless of the environment's locale settings.
281-301: Optimize transaction migration with batch operationsIn
migrateTransaction(rds:), each transaction and its related labels are saved individually. This could impact performance when migrating a large number of records.Consider using batch inserts or wrapping the save operations within a database transaction to improve performance:
try await app.db.transaction { db in try await transaction.save(on: db) // Save labels within the transaction }Batch operations reduce the number of database round-trips and can significantly speed up the migration process.
README.md (3)
23-23: Specify language identifiers in fenced code blocksCode blocks without language identifiers do not benefit from syntax highlighting, which can improve readability.
Add the appropriate language identifier after the triple backticks. For example:
-``` swift run -``` +```bash swift run +```Apply this change to all code blocks in the README.
Also applies to: 46-46, 50-50, 55-55, 61-61, 66-66, 71-71
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27-27: Correct Markdown formatting for emphasisThere are spaces inside the emphasis markers, which can prevent proper rendering.
Change:
-** IMPORTANT **: The web-client must have been launched... +**IMPORTANT**: The web-client must have been launched...Removing the spaces ensures that the text is correctly emphasized.
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54-54: Fix grammatical error in the admin user creation descriptionThe phrase "by default will be demo:demo" is grammatically incorrect.
Modify the sentence for clarity:
-3. Create an admin user (by default will be demo:demo): +3. Create an admin user (default credentials are demo:demo):This correction improves readability and ensures correct grammar.
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[grammar] ~54-~54: The past participle is required after “will be”, alternatively you could omit the “be”.
Context: .... Create an admin user (by default will be demo:demo): ``` ./serverDebug create_user --...(BE_VBP_IN)
src/swift-server/configure.swift (3)
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9-40: Add documentation for error codes and enhance URL validation.The new
getDbConfigfunction provides good separation of concerns, but could benefit from:
- Documentation for error codes (E10019, E10003)
- More robust PostgreSQL URL validation
- Input sanitization for the file path
+/// Configures the database connection based on the provided URL. +/// - Parameter dbUrl: Database URL in format "sqlite://path" or "postgres://connection_string" +/// - Throws: Exception with code: +/// - E10019: Invalid database URL format +/// - E10003: Unsupported database type +/// - Returns: Tuple of database configuration factory and database ID func getDbConfig(url dbUrl: String) throws -> (DatabaseConfigurationFactory, DatabaseID) { + // Sanitize input + guard let sanitizedUrl = dbUrl.trimmingCharacters(in: .whitespacesAndNewlines) + .addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) else { + throw Exception(.E10019, context: ["dbUrl": dbUrl]) + } + if !dbUrl.starts(with: "sqlite://") && !dbUrl.starts(with: "postgres://") {
41-45: Consider adding logging and making the default database path configurable.While the function is well-structured, consider:
- Adding logging for successful database configuration
- Making the default SQLite path configurable via environment variables
func configureDb(_ app: Application) async throws { - let dbUrl = Environment.get("DB_URL") ?? "sqlite://db.sqlite3" + let defaultDbPath = Environment.get("DEFAULT_DB_PATH") ?? "db.sqlite3" + let dbUrl = Environment.get("DB_URL") ?? "sqlite://\(defaultDbPath)" let (dbFactory, dbId) = try getDbConfig(url: dbUrl) app.databases.use(dbFactory, as: dbId) + app.logger.info("Database configured successfully", metadata: ["type": "\(dbId)"]) }
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9-73: Consider documenting the V2 to V3 migration architecture.The changes introduce a solid foundation for database configuration and migration support. Consider adding:
- Documentation describing the overall V2 to V3 migration architecture
- Migration rollback strategy
- Data validation steps during migration
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README.md
[grammar] ~54-~54: The past participle is required after “will be”, alternatively you could omit the “be”.
Context: .... Create an admin user (by default will be demo:demo): ``` ./serverDebug create_user --...
(BE_VBP_IN)
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🔇 Additional comments (1)
src/swift-server/django-migration/django-migration.service.swift (1)
34-47: Evaluate the use of@unchecked Sendableon model classesThe application of
@unchecked Sendableto model classes likeTagModel,FilterModel,RawDataSource, andGraphbypasses the compiler's concurrency safety checks. This could lead to data races if instances of these models are accessed from multiple tasks concurrently without proper synchronization.Please ensure that:
- The properties within these models are safe to be shared across concurrent contexts.
- Appropriate synchronization mechanisms are in place if these models are mutated concurrently.
- If the models are only used within controlled contexts where concurrency issues are unlikely, document the reasoning for using
@unchecked Sendable.Also applies to: 49-97, 189-276, 324-470
| @Argument(name: "dbUrl", help: "The url where to find the old Database") | ||
| var oldDbUrl: String { | ||
| didSet { | ||
| guard | ||
| oldDbUrl.starts(with: "sqlite://") | ||
| || oldDbUrl.starts(with: "postgres://") | ||
| else { | ||
| fatalError( | ||
| "Invalid database URL format. Must start with 'sqlite://' or 'postgres://'" | ||
| ) | ||
| } | ||
| } | ||
| } |
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🛠️ Refactor suggestion
Avoid using fatalError for argument validation
Using fatalError for input validation causes the program to crash and can be uninformative to the user. Instead, throw a CommandError to provide a clear error message.
Refactor the validation logic:
struct Signature: CommandSignature {
@Argument(name: "dbUrl", help: "The url where to find the old Database")
var oldDbUrl: String
+ func validate() throws {
+ guard oldDbUrl.starts(with: "sqlite://") || oldDbUrl.starts(with: "postgres://") else {
+ throw CommandError(
+ identifier: "invalidDbUrl",
+ reason: "Invalid database URL format. Must start with 'sqlite://' or 'postgres://'",
+ suggestion: "Check the database URL and try again."
+ )
+ }
+ }
@Argument(
name: "group-owner-id",
help: "The group owner Id used for the imported data")
var groupOwnerId: UUID
}Then, call try signature.validate() at the beginning of the run method:
func run(using context: CommandContext, signature: Signature) async throws {
try signature.validate()
// Rest of the code...
}This approach provides a better user experience by displaying a descriptive error without crashing the application.
| app.asyncCommands.use(CreateUserCommand(), as: "create_user") | ||
| app.asyncCommands.use(DemoDataCommand(), as: "demo_data") | ||
| app.asyncCommands.use(V2MigrateCommand(), as: "v2_migrate") |
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💡 Codebase verification
Update outdated test reference to match new command name
The command changes are properly implemented, but there's one remaining reference to the old command name:
- Update
src/swift-server-tests/app-test.swiftto use"create_user"instead of"demo_user"in the test arguments
🔗 Analysis chain
Verify command changes and migration implementation.
The command registration changes indicate a shift from demo to production functionality. Please verify:
- That all references to the old 'demo_user' command have been updated
- The implementation of
V2MigrateCommandhandles all necessary data migration cases
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$$$
}'
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Actionable comments posted: 1
🧹 Nitpick comments (6)
src/swift-server/django-migration/v2-migrate.command.swift (2)
19-30: Consider enhancing URL validation.While the current validation checks for URL scheme, consider validating the complete URL structure to ensure it contains a valid path.
func validate() throws { + guard let url = URL(string: oldDbUrl) else { + throw InvalidArgument( + argument: "dbUrl", + reason: "Invalid URL format" + ) + } guard - oldDbUrl.starts(with: "sqlite://") - || oldDbUrl.starts(with: "postgres://") + url.scheme == "sqlite" + || url.scheme == "postgres" else { throw InvalidArgument( argument: "dbUrl", reason: "Invalid database URL format. Must start with 'sqlite://' or 'postgres://'" ) } + guard !url.path.isEmpty else { + throw InvalidArgument( + argument: "dbUrl", + reason: "Database path is required" + ) + } }
64-82: Consider adding progress tracking and rollback capability.While the migration steps are well-organized, consider:
- Adding progress tracking (e.g., number of items migrated)
- Implementing rollback capability for failed migrations
Example for progress tracking:
context.console.print("Migrating transactions...") -try await migrator.migrateTransactions() +let count = try await migrator.migrateTransactions() +context.console.print("Migrated \(count) transactions")src/swift-server-tests/migrate-v2-command.tests.swift (4)
35-40: Remove or uncomment test assertions.The commented assertions for console output validation should either be removed or uncommented if they're still relevant.
49-53: Remove unused commented code.The commented label dictionary code should be removed if it's no longer needed.
194-194: Remove commented assertion.The commented assertion
XCTAssertNil(console.testOutputQueue)should be removed if it's no longer needed.
168-205: Consider adding more error test cases.While testing invalid URL format is good, consider adding tests for:
- Non-existent database file
- Invalid group owner ID format
- Database connection failures
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src/swift-server-tests/migrate-v2-command.tests.swift
[Warning] 111-111: TODOs should be resolved (Add the validations)
(todo)
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🔇 Additional comments (4)
src/swift-server/django-migration/v2-migrate.command.swift (2)
5-8: LGTM! Well-structured error type.The
InvalidArgumenterror type provides clear error context with both the argument name and reason.
37-49: LGTM! Robust database setup with proper error handling.The code properly validates inputs, configures the database, and includes appropriate type checking.
src/swift-server-tests/migrate-v2-command.tests.swift (2)
72-110: LGTM! Comprehensive transaction testing.The tests thoroughly validate transaction properties, including dates, values, and label associations.
111-111: Address TODO comment for additional validations.The TODO comment indicates missing validations. What specific validations need to be added?
Would you like me to help implement the additional graph validations?
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[Warning] 111-111: TODOs should be resolved (Add the validations)
(todo)
| guard | ||
| let groupOwner = try await UserGroup.query(on: application.db) | ||
| .filter( | ||
| \.$id == signature.groupOwnerId | ||
| ).first() | ||
| else { | ||
| throw InvalidArgument( | ||
| argument: "groupId", | ||
| reason: "Group Owner Id not found in the DB") | ||
| } | ||
| let migrator = DjangoMigrationService( | ||
| owner: try groupOwner.requireID(), app: application, oldDb: oldDb, | ||
| oldSqlDb: sql) | ||
|
|
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider adding transaction boundary.
While the group owner validation is good, consider wrapping the entire migration process in a transaction to ensure data consistency in case of failures.
guard
let groupOwner = try await UserGroup.query(on: application.db)
.filter(
\.$id == signature.groupOwnerId
).first()
else {
throw InvalidArgument(
argument: "groupId",
reason: "Group Owner Id not found in the DB")
}
+try await application.db.transaction { transaction in
let migrator = DjangoMigrationService(
- owner: try groupOwner.requireID(), app: application, oldDb: oldDb,
+ owner: try groupOwner.requireID(), app: application, oldDb: transaction,
oldSqlDb: sql)
+ // Move migration steps inside transaction
+}Committable suggestion skipped: line range outside the PR's diff.
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Actionable comments posted: 2
🧹 Nitpick comments (5)
src/swift-server/django-migration/django-migration.service.swift (5)
16-16: Consider making PAGE_SIZE configurable.The fixed page size of 100 might need adjustment based on the data volume and available memory. Consider making it configurable through environment variables or constructor parameters.
-static let PAGE_SIZE = 100 +static let PAGE_SIZE: Int = { + if let envSize = Environment.get("MIGRATION_PAGE_SIZE"), + let size = Int(envSize) { + return size + } + return 100 +}()
64-73: Enhance number parsing error handling.The number parsing logic could be more robust. Consider adding the actual value to the error context and supporting different number formats.
func getCondDouble() throws -> Double { let formatter = NumberFormatter() formatter.locale = Locale(identifier: "en_US_POSIX") if let d = formatter.number(from: conditional)? .doubleValue { return d } - throw Exception(.E10023, context: ["filterId": id as Any, "tagId": tagId]) + throw Exception(.E10023, context: [ + "filterId": id as Any, + "tagId": tagId, + "value": conditional, + "locale": "en_US_POSIX" + ]) }
307-324: Enhance progress reporting with ETA and rate.The current progress reporting is basic. Consider adding estimated time remaining and migration rate information.
func migrateTransactions() async throws { let transactionsQuery = OldDb.RawDataSource.query(on: oldDb).sort(.id) var finish = false var pageIdx = 1 var done = 0 + let startTime = Date() while !finish { let page = try await transactionsQuery.page( withIndex: pageIdx, size: DjangoMigrationService.PAGE_SIZE) pageIdx = page.metadata.page + 1 finish = pageIdx > page.metadata.pageCount for rds in page.items { try await migrateTransaction(rds: rds) done = done + 1 } - print("Migrated \(done)/\(page.metadata.total)") + let elapsed = Date().timeIntervalSince(startTime) + let rate = Double(done) / elapsed + let remaining = Double(page.metadata.total - done) / rate + print("Migrated \(done)/\(page.metadata.total) at \(Int(rate))/s, ETA: \(Int(remaining))s") } }
476-541: Add rollback capability for graph migration.The graph migration process lacks rollback capability. If an error occurs mid-way through the migration of a graph and its related entities, the database could be left in an inconsistent state.
Consider implementing the migration within a transaction:
func migrateGraphs() async throws { let graphs = try await OldDb.Graph.query(on: oldDb).all() + try await app.db.transaction { tx in for graph in graphs { - try await migrateGraph(graph: graph) + try await migrateGraph(graph: graph, on: tx) } + } }
346-379: Simplify enum mapping using string-based raw values.The manual enum mapping could be simplified by making the enums conform to
Stringand using raw values.-func getKindEnum() throws -> GraphKind { - switch kind { - case "pie": - return .pie - case "bar": - return .bar - case "line": - return .line - default: - throw Exception( - .E10027, context: ["graphId": id as Any, "kind": kind]) - } -} +func getKindEnum() throws -> GraphKind { + guard let kind = GraphKind(rawValue: kind) else { + throw Exception(.E10027, context: ["graphId": id as Any, "kind": kind]) + } + return kind +}
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🔇 Additional comments (1)
src/swift-server/django-migration/django-migration.service.swift (1)
34-34: Verify thread safety with @unchecked Sendable.The models are marked as
@unchecked Sendablewhich bypasses the compiler's thread safety checks. Ensure that all properties are actually thread-safe or properly synchronized.Also applies to: 49-49
✅ Verification successful
@unchecked Sendable usage is appropriate here
The models are used exclusively for database operations through Vapor's ORM during migration, with no concurrent mutations observed. The thread safety is properly managed by the framework's database query interface.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for potential concurrent access to these models rg -l "async.*TagModel|async.*FilterModel"Length of output: 44
Script:
#!/bin/bash # Find all usages of TagModel and FilterModel rg "TagModel|FilterModel" -A 3 -B 3 # Find property declarations within these models ast-grep --pattern 'class $_ { $$$ var $_: $_ $$$ }'Length of output: 8019
| func getRelations(on oldDb: SQLDatabase) async throws -> [TagsRelation] { | ||
| let tableName = DjangoMigrationService.OldDb.TableNames.rdsToTags.rawValue | ||
| let tagsList = try await oldDb.select().column( | ||
| SQLColumn( | ||
| SQLLiteral.all, | ||
| table: SQLIdentifier(tableName)) | ||
| ).from( | ||
| tableName | ||
| ).where( | ||
| SQLColumn("raw_data_source_id", table: tableName), .equal, | ||
| SQLLiteral.numeric("\(try requireID())") | ||
| ).all() | ||
| return try tagsList.map { | ||
| try .init(row: $0) | ||
| } | ||
| } |
There was a problem hiding this comment.
Protect against SQL injection in raw SQL queries.
The manual construction of SQL queries using string interpolation is vulnerable to SQL injection. Use parameterized queries instead.
- ).where(
- SQLColumn("raw_data_source_id", table: tableName), .equal,
- SQLLiteral.numeric("\(try requireID())")
+ ).where(SQLBind(try requireID()))Committable suggestion skipped: line range outside the PR's diff.
| func migrateTagsToRules() async throws { | ||
| var tagsList = try await OldDb.TagModel.query(on: oldDb).filter( | ||
| \.$parent.$id == nil | ||
| ).all() | ||
| var tagToRuleDictId: [Int64: UUID] = [:] | ||
| while !tagsList.isEmpty { | ||
| let newIds = try await migrateTags(tagsList, withDict: &tagToRuleDictId) | ||
| tagsList = try await OldDb.TagModel.query(on: oldDb).filter( | ||
| \.$parent.$id ~~ newIds | ||
| ).all() | ||
| } | ||
| } |
There was a problem hiding this comment.
Add depth limit for recursive tag migration.
The recursive approach for migrating nested tags could potentially cause stack overflow with deeply nested hierarchies. Consider adding a maximum depth limit.
func migrateTagsToRules() async throws {
+ let maxDepth = 100 // Configurable maximum depth
+ var currentDepth = 0
var tagsList = try await OldDb.TagModel.query(on: oldDb).filter(
\.$parent.$id == nil
).all()
var tagToRuleDictId: [Int64: UUID] = [:]
while !tagsList.isEmpty {
+ currentDepth += 1
+ guard currentDepth <= maxDepth else {
+ throw Exception(.E10099, context: ["depth": currentDepth])
+ }
let newIds = try await migrateTags(tagsList, withDict: &tagToRuleDictId)
tagsList = try await OldDb.TagModel.query(on: oldDb).filter(
\.$parent.$id ~~ newIds
).all()
}
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| func migrateTagsToRules() async throws { | |
| var tagsList = try await OldDb.TagModel.query(on: oldDb).filter( | |
| \.$parent.$id == nil | |
| ).all() | |
| var tagToRuleDictId: [Int64: UUID] = [:] | |
| while !tagsList.isEmpty { | |
| let newIds = try await migrateTags(tagsList, withDict: &tagToRuleDictId) | |
| tagsList = try await OldDb.TagModel.query(on: oldDb).filter( | |
| \.$parent.$id ~~ newIds | |
| ).all() | |
| } | |
| } | |
| func migrateTagsToRules() async throws { | |
| let maxDepth = 100 // Configurable maximum depth | |
| var currentDepth = 0 | |
| var tagsList = try await OldDb.TagModel.query(on: oldDb).filter( | |
| \.$parent.$id == nil | |
| ).all() | |
| var tagToRuleDictId: [Int64: UUID] = [:] | |
| while !tagsList.isEmpty { | |
| currentDepth += 1 | |
| guard currentDepth <= maxDepth else { | |
| throw Exception(.E10099, context: ["depth": currentDepth]) | |
| } | |
| let newIds = try await migrateTags(tagsList, withDict: &tagToRuleDictId) | |
| tagsList = try await OldDb.TagModel.query(on: oldDb).filter( | |
| \.$parent.$id ~~ newIds | |
| ).all() | |
| } | |
| } |
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Actionable comments posted: 3
🧹 Nitpick comments (7)
src/swift-server/django-migration/v2-migrate.command.swift (5)
5-8: Enhance error handling by conforming toLocalizedError.Consider enhancing the
InvalidArgumenterror type by conforming toLocalizedErrorand adding a suggestion field for better user guidance.-struct InvalidArgument: Error { +struct InvalidArgument: LocalizedError { var argument: String var reason: String + var suggestion: String? + + var errorDescription: String? { + return reason + } + + var failureReason: String? { + return "Invalid argument: \(argument)" + } + + var recoverySuggestion: String? { + return suggestion + } }
19-30: Enhance URL and UUID validation.The current validation only checks URL prefixes. Consider adding:
- Full URL format validation
- UUID format validation for groupOwnerId
func validate() throws { guard - oldDbUrl.starts(with: "sqlite://") - || oldDbUrl.starts(with: "postgres://") + let url = URL(string: oldDbUrl), + let scheme = url.scheme, + ["sqlite", "postgres"].contains(scheme) else { throw InvalidArgument( argument: "dbUrl", - reason: - "Invalid database URL format. Must start with 'sqlite://' or 'postgres://'" + reason: "Invalid database URL format", + suggestion: "URL must be a valid sqlite:// or postgres:// URL" ) } + + guard UUID(uuidString: groupOwnerId.uuidString) != nil else { + throw InvalidArgument( + argument: "group-owner-id", + reason: "Invalid UUID format", + suggestion: "Provide a valid UUID for the group owner" + ) + } }
33-35: Enhance command help text with more details.The current help text could be more informative about the required arguments, their formats, and what data will be migrated.
var help: String { - "Migrates all data from the old MrScrooge V2 Database" + """ + Migrates data from MrScrooge V2 to V3 Database. + + Arguments: + dbUrl: URL of the V2 database (sqlite:// or postgres://) + group-owner-id: UUID of the group owner for the imported data + + Migrates: + - Tags to Labels + - Tags to Rules + - Transactions + - Graphs + """ }
68-77: Enhance progress reporting with completion percentage.Consider adding progress indicators for better user feedback during migration.
-context.console.print("Starting migration...") +let console = context.console +console.output("Starting migration...", style: .info) + +func reportProgress(_ step: String) { + console.output("[\(Date())] \(step)", style: .info) +} -context.console.print("Migrating tags to labels...") +reportProgress("Migrating tags to labels...") try await migrator.migrateTagsToLabels() -context.console.print("Migrating tags to rules...") +reportProgress("Migrating tags to rules...") try await migrator.migrateTagsToRules() -context.console.print("Migrating transactions...") +reportProgress("Migrating transactions...") try await migrator.migrateTransactions() -context.console.print("Migrating graphs...") +reportProgress("Migrating graphs...") try await migrator.migrateGraphs()
80-85: Enhance error handling with more specific error cases.The error handling could be more comprehensive to handle different types of errors.
} catch let error as Exception { - context.console.error(String(describing: error)) + context.console.output("Migration failed: \(error.localizedDescription)", style: .error) } catch let error as InvalidArgument { - context.console.error("Invalid argument: \(error.argument)") - context.console.error("Error: \(error.reason)") + context.console.output("Invalid argument: \(error.argument)", style: .error) + context.console.output("Error: \(error.reason)", style: .error) + if let suggestion = error.suggestion { + context.console.output("Suggestion: \(suggestion)", style: .info) + } +} catch { + context.console.output("Unexpected error: \(error.localizedDescription)", style: .error) }src/swift-server/django-migration/django-migration.service.swift (2)
5-36: Consider marking the class as final and adding documentation.The
DjangoMigrationServiceclass could benefit from:
- Being marked as
finalsince it's not designed for inheritance- Adding documentation comments explaining its purpose and requirements
+/// Service responsible for migrating data from Django V2 to V3. +/// Handles the migration of tags, rules, transactions, and graphs. +final class DjangoMigrationService {
312-329: Enhance progress reporting for better monitoring.The current progress reporting is basic. Consider:
- Using a proper logging framework instead of print
- Adding time estimates for completion
- Including error counts in the progress
- print("Migrated \(done)/\(page.metadata.total)") + app.logger.info("Migration progress: \(done)/\(page.metadata.total) transactions processed")
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🔇 Additional comments (2)
src/swift-server/django-migration/django-migration.service.swift (2)
183-194: Add depth limit for recursive tag migration.The recursive approach for migrating nested tags could potentially cause stack overflow with deeply nested hierarchies.
269-284: Protect against SQL injection in raw SQL queries.The manual construction of SQL queries using string interpolation is vulnerable to SQL injection.
| func run(using context: CommandContext, signature: Signature) async throws { | ||
| do { | ||
| try signature.validate() | ||
| let (dbFactory, _) = try getDbConfig(url: signature.oldDbUrl) | ||
| let application = context.application | ||
| let oldDbId: DatabaseID = .init(string: "old") | ||
| application.databases.use(dbFactory, as: oldDbId, isDefault: false) | ||
| let oldDb = application.db(oldDbId) | ||
|
|
||
| guard let sql = oldDb as? SQLDatabase else { | ||
| throw Exception(.E10020, context: ["oldDbUrl": signature.oldDbUrl]) | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve database resource management.
Consider adding cleanup for the old database connection and enhancing error handling for database setup.
func run(using context: CommandContext, signature: Signature) async throws {
do {
try signature.validate()
let (dbFactory, _) = try getDbConfig(url: signature.oldDbUrl)
let application = context.application
let oldDbId: DatabaseID = .init(string: "old")
- application.databases.use(dbFactory, as: oldDbId, isDefault: false)
- let oldDb = application.db(oldDbId)
+ defer {
+ application.databases.shutdown()
+ }
+
+ do {
+ application.databases.use(dbFactory, as: oldDbId, isDefault: false)
+ let oldDb = application.db(oldDbId)
+ } catch {
+ throw Exception(.E10021, context: ["error": error.localizedDescription])
+ }Committable suggestion skipped: line range outside the PR's diff.
| private func migrateGraph(graph oldGraph: OldDb.Graph) async throws { | ||
| let labelFilterId: UUID? | ||
| if let tagFilter = oldGraph.tagFilter { | ||
| labelFilterId = try getLabelId(tagFilter) | ||
| } else { | ||
| labelFilterId = nil | ||
| } | ||
| let oldGraphId = try oldGraph.requireID() | ||
| let graph = try Graph( | ||
| groupOwnerId: groupOwnerId, name: oldGraph.name, | ||
| kind: oldGraph.getKindEnum(), | ||
| labelFilterId: labelFilterId, | ||
| dateRange: oldGraph.getDateRangeEnum()) | ||
|
|
||
| try await graph.save(on: newDb) | ||
| let graphId = try graph.requireID() | ||
|
|
||
| let oldGroup = try await OldDb.GraphGroup.query( | ||
| table: .graphGroup, for: oldGraphId, on: oldSqlDb) | ||
| guard let oldGroup else { | ||
| throw Exception(.E10030, context: ["oldGraphId": oldGraphId]) | ||
| } | ||
| let group = try GraphGroup( | ||
| graphId: graphId, group: oldGroup.getGroupType(), | ||
| hideOthers: oldGroup.hideOthers) | ||
| try await group.save(on: newDb) | ||
|
|
||
| let oldGroupTags = try await OldDb.GraphGroupTag.query( | ||
| table: .graphGroupTag, for: oldGroup.id, on: oldSqlDb) | ||
| let groupLabels: [GraphGroupLabels] = try oldGroupTags.enumerated().map { | ||
| .init(graphId: graphId, labelId: try getLabelId($1.tagId), order: $0) | ||
| } | ||
| for groupLabel in groupLabels { | ||
| try await groupLabel.save(on: newDb) | ||
| } | ||
|
|
||
| let oldHorizontalGroup = try await OldDb.GraphGroup.query( | ||
| table: .graphHorizontalGroup, for: oldGraphId, on: oldSqlDb) | ||
| if let oldHorizontalGroup { | ||
| let horizontalGroup = GraphHorizontalGroup( | ||
| graphId: graphId, group: try oldHorizontalGroup.getGroupType(), | ||
| hideOthers: oldHorizontalGroup.hideOthers, | ||
| accumulate: oldHorizontalGroup.accumulate ?? false) | ||
| try await horizontalGroup.save(on: newDb) | ||
|
|
||
| let oldHorizontalGroupTags = try await OldDb.GraphGroupTag.query( | ||
| table: .graphHorizontalGroupTag, for: oldGroup.id, on: oldSqlDb) | ||
| let horizontalGroupLabels: [GraphHorizontalGroupLabels] = | ||
| try oldHorizontalGroupTags.enumerated().map { | ||
| .init( | ||
| graphId: graphId, labelId: try getLabelId($1.tagId), | ||
| order: $0) | ||
| } | ||
| for groupLabel in horizontalGroupLabels { | ||
| try await groupLabel.save(on: newDb) | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Wrap graph migration in a database transaction.
The graph migration process involves multiple related entities. If any step fails, the database could be left in an inconsistent state. Consider wrapping the entire migration in a transaction.
private func migrateGraph(graph oldGraph: OldDb.Graph) async throws {
+ try await newDb.transaction { tx in
let labelFilterId: UUID?
if let tagFilter = oldGraph.tagFilter {
labelFilterId = try getLabelId(tagFilter)
} else {
labelFilterId = nil
}
// ... rest of the migration code ...
+ }
}Committable suggestion skipped: line range outside the PR's diff.
| } | ||
|
|
||
| extension DjangoMigrationService.OldDb { | ||
| final class TagModel: Model, @unchecked Sendable { |
There was a problem hiding this comment.
💡 Codebase verification
@unchecked Sendable usage requires synchronization mechanisms
The models contain mutable state (var properties and collections) and are used in concurrent contexts (TaskGroup). The current @unchecked Sendable implementation bypasses compiler safety checks without proper synchronization, which could lead to data races. Consider:
- Using immutable properties (let) where possible
- Adding synchronization for mutable state
- Implementing proper Sendable conformance instead of @unchecked
🔗 Analysis chain
Verify the safety of @unchecked Sendable usage.
The models are marked as @unchecked Sendable which bypasses the compiler's sendability checking. This could lead to data races if the models are used across concurrent contexts.
Also applies to: 54-54, 198-198, 333-333
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check for concurrent access to these models
rg -A 5 "async.*\b(TagModel|FilterModel|RawDataSource|Graph)\b.*\{"
Length of output: 69
Script:
#!/bin/bash
# Check model implementations and concurrent usage patterns
echo "=== Model Implementations ==="
ast-grep --pattern 'class $_ : Model {
$$$
}'
echo -e "\n=== Concurrent Access Patterns ==="
# Look for Task, async, or concurrent usage
rg -B 2 -A 2 "(Task|DispatchQueue|actor).*\b(TagModel|FilterModel|RawDataSource|Graph)\b"
echo -e "\n=== Mutable Properties ==="
# Look for var declarations in models
ast-grep --pattern 'class $_ : Model {
$$$
var $_: $_
$$$
}'
Length of output: 792
Script:
#!/bin/bash
# Check for property declarations in models
echo "=== Property Declarations ==="
ast-grep --pattern 'class $_ : Model {
$$$
let $_: $_
$$$
}'
echo -e "\n=== Any Property Modifiers ==="
rg "^[[:space:]]*(private|public|internal)?\s*(var|let)\s+\w+\s*:" src/swift-server/django-migration/django-migration.service.swift
Length of output: 1513
Summary by CodeRabbit
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