Migration: Table already exists

[gngrwzrd]

First thank you for this very simple to use library.

I'm trying to use Migrations. It's very easy to setup. BUT one thing I cannot figure out is why exceptions are thrown for the table existing already. The migrations don't run since there's an exception.

I've setup a schema like this:

func schema() -> Schema {
        return Schema(identifier: "workouts") { (schemaBuilder:SchemaBuilder) in
            schemaBuilder.version(0) { (v1:VersionBuilder) in
                
                //WORKOUTS
                v1.createTable(workoutsTableName) { (workouts:TableBuilder) in
                    workouts.primaryKey("id", autoincrement: true)
                    workouts.column("title", .Text)
                    workouts.column("notes", .Text)
                    workouts.column("timerType", type: .Integer)
                    workouts.column("countdown", type: .Real)
                    workouts.column("rounds", type: .Integer)
                    workouts.column("work", type: .Real)
                    workouts.column("rest", type: .Real)
                    workouts.column("asPerscribed", type: .Integer)
                    workouts.column("asPerscribedPlus", type: .Integer)
                    workouts.column("completedRounds", type: .Integer)
                    workouts.column("completedReps", type: .Integer)
                    workouts.column("startDate", type: .Real)
                    workouts.column("endDate", type: .Real)
                }
                
                //LAPS
                v1.createTable(workoutLapsTableName) { (workoutLaps:TableBuilder) in
                    workoutLaps.primaryKey("id", autoincrement: true)
                    workoutLaps.column("workoutId", type: .Integer)
                    workoutLaps.column("lap", type: .Real)
                }
            }
            
            //ADD TOTAL DURATION COLUMN.
            schemaBuilder.version(1) { (v2:VersionBuilder) in

                v2.alterTable("workouts") { (workouts:TableAlterer) in
                    workouts.addColumn("totalDuration", .Real)
                }

            }
            
        }
    }

And my init code is this:

func initDatabase() throws {
        let paths = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
        guard paths.count > 0 else {
            throw GTDBError.noDocumentPath
        }
        let docPathURL = URL(fileURLWithPath: paths[0])
        let dbPath = docPathURL.appendingPathComponent(sqliteFileName)
        do {
            try db = Database(path: dbPath.absoluteString)
        } catch {
            throw GTDBError.noDatabaseFile
        }
        do {
            try _ = self.schema().migrate(db)
        } catch let error as NSError where error.domain == sqliteErrorDomain {
            var continueThrow = true
            
            if error.code == 1 { //table exists?
                continueThrow = false
            }
            
            if continueThrow {
                print(error)
                throw GTDBError.sqliteError
            }
            
        } catch let error {
            print(error)
            throw GTDBError.otherError
        }
    }

The issue I'm hitting is exceptions thrown for the "workouts" table already existing, which causes the migrations to not run:

[logging] table "workouts" already exists in "CREATE TABLE "workouts" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT,"title" TEXT,"notes" TEXT,"timerType" INTEGER,"countdown" REAL,"rounds" INTEGER,"work" REAL,"rest" REAL,"asPerscribed" INTEGER,"asPerscribedPlus" INTEGER,"completedRounds" INTEGER,"completedReps" INTEGER,"startDate" REAL,"endDate" REAL )"