How to use NewMigrator method of migrator Package

Best Testkube code snippet using migrator.NewMigrator

migrator_integration_test.go

Source:migrator_integration_test.go Github

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...18func TestMigrator_Version(t *testing.T) {19 db, err := testutil.NewDBFromEnv()20 require.NoError(t, err)21 defer cleanupDB(t, db)22 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))23 _, err = m.Up()24 require.NoError(t, err)25 latest, err := m.LatestVersion()26 require.NoError(t, err)27 current, err := m.Version()28 require.NoError(t, err)29 require.Equal(t, latest, current)30}31func TestMigrator_Version_NoMigrations(t *testing.T) {32 db, err := testutil.NewDBFromEnv()33 require.NoError(t, err)34 defer cleanupDB(t, db)35 // Create migrator with an empty migration source.36 m := migrations.NewMigrator(db.DB, migrations.Source([]*migrations.Migration{}))37 v, err := m.Version()38 require.NoError(t, err)39 require.Empty(t, v)40}41func TestMigrator_LatestVersion(t *testing.T) {42 db, err := testutil.NewDBFromEnv()43 require.NoError(t, err)44 defer cleanupDB(t, db)45 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))46 v, err := m.LatestVersion()47 require.NoError(t, err)48 require.Equal(t, v, testmigrations.All()[len(testmigrations.All())-1].Id)49}50func TestMigrator_LatestVersion_NoMigrations(t *testing.T) {51 db, err := testutil.NewDBFromEnv()52 require.NoError(t, err)53 defer cleanupDB(t, db)54 // Create migrator with an empty migration source.55 m := migrations.NewMigrator(db.DB, migrations.Source([]*migrations.Migration{}))56 v, err := m.LatestVersion()57 require.NoError(t, err)58 require.Empty(t, v)59}60func TestMigrator_Up(t *testing.T) {61 db, err := testutil.NewDBFromEnv()62 require.NoError(t, err)63 defer cleanupDB(t, db)64 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))65 all := testmigrations.All()66 count, err := m.Up()67 require.NoError(t, err)68 require.Equal(t, len(all), count)69 currentVersion, err := m.Version()70 require.NoError(t, err)71 v, err := m.LatestVersion()72 require.NoError(t, err)73 require.Equal(t, v, currentVersion)74}75func TestMigrator_Up_ApplyPostDeploymentMigrations(t *testing.T) {76 db, err := testutil.NewDBFromEnv()77 require.NoError(t, err)78 defer cleanupDB(t, db)79 m := migrations.NewMigrator(80 db.DB,81 migrations.Source(testmigrations.All()),82 migrations.SkipPostDeployment,83 )84 migs := testmigrations.NonPostDeployment()85 count, err := m.Up()86 require.NoError(t, err)87 require.Equal(t, len(migs), count)88 initialCurrentVersion, err := m.Version()89 require.NoError(t, err)90 initialLatestVersion, err := m.LatestVersion()91 require.NoError(t, err)92 require.Equal(t, initialLatestVersion, initialCurrentVersion)93 // Run post deployment migrations after fully applying all others.94 m = migrations.NewMigrator(95 db.DB,96 migrations.Source(testmigrations.All()),97 )98 all := testmigrations.All()99 count, err = m.Up()100 require.NoError(t, err)101 require.Equal(t, len(all)-len(migs), count)102 currentVersion, err := m.Version()103 require.NoError(t, err)104 latestVersion, err := m.LatestVersion()105 require.NoError(t, err)106 require.Equal(t, latestVersion, currentVersion)107 require.NotEqual(t, initialLatestVersion, latestVersion)108 require.NotEqual(t, initialCurrentVersion, currentVersion)109}110func TestMigrator_Up_SkipPostDeployment(t *testing.T) {111 db, err := testutil.NewDBFromEnv()112 require.NoError(t, err)113 defer cleanupDB(t, db)114 m := migrations.NewMigrator(115 db.DB,116 migrations.Source(testmigrations.All()),117 migrations.SkipPostDeployment,118 )119 migs := testmigrations.NonPostDeployment()120 n := len(migs)121 count, err := m.Up()122 require.NoError(t, err)123 require.Equal(t, n, count)124 currentVersion, err := m.Version()125 require.NoError(t, err)126 v, err := m.LatestVersion()127 require.NoError(t, err)128 require.Equal(t, v, currentVersion)129}130func TestMigrator_UpN(t *testing.T) {131 db, err := testutil.NewDBFromEnv()132 require.NoError(t, err)133 defer cleanupDB(t, db)134 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))135 // apply all except the last two136 all := testmigrations.All()137 n := len(all) - 1 - 2138 nth := all[n-1]139 count, err := m.UpN(n)140 require.NoError(t, err)141 require.Equal(t, n, count)142 v, err := m.Version()143 require.NoError(t, err)144 require.Equal(t, nth.Id, v)145 // resume and apply the remaining146 count, err = m.UpN(0)147 require.NoError(t, err)148 require.Equal(t, len(all)-n, count)149 v, err = m.Version()150 require.NoError(t, err)151 require.Equal(t, all[len(all)-1].Id, v)152 // make sure it's idempotent153 count, err = m.UpN(100)154 require.NoError(t, err)155 require.Zero(t, count)156 v2, err := m.Version()157 require.NoError(t, err)158 require.Equal(t, v, v2)159}160func TestMigrator_UpN_SkipPostDeployment(t *testing.T) {161 db, err := testutil.NewDBFromEnv()162 require.NoError(t, err)163 defer cleanupDB(t, db)164 m := migrations.NewMigrator(165 db.DB,166 migrations.Source(testmigrations.All()),167 migrations.SkipPostDeployment,168 )169 // apply all non postdeployment migrations except the last two170 migs := testmigrations.NonPostDeployment()171 n := len(migs) - 1 - 2172 nth := migs[n-1]173 count, err := m.UpN(n)174 require.NoError(t, err)175 require.Equal(t, n, count)176 v, err := m.Version()177 require.NoError(t, err)178 require.Equal(t, nth.Id, v)179 // resume and apply the remaining180 count, err = m.UpN(0)181 require.NoError(t, err)182 require.Equal(t, len(migs)-n, count)183 v, err = m.Version()184 require.NoError(t, err)185 require.Equal(t, migs[len(migs)-1].Id, v)186 // make sure it's idempotent187 count, err = m.UpN(100)188 require.NoError(t, err)189 require.Zero(t, count)190 v2, err := m.Version()191 require.NoError(t, err)192 require.Equal(t, v, v2)193}194func TestMigrator_UpNPlan(t *testing.T) {195 db, err := testutil.NewDBFromEnv()196 require.NoError(t, err)197 defer cleanupDB(t, db)198 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))199 all := testmigrations.All()200 var allPlan []string201 for _, migration := range all {202 allPlan = append(allPlan, migration.Id)203 }204 // plan all except the last two205 n := len(allPlan) - 1 - 2206 allExceptLastTwoPlan := allPlan[:n]207 plan, err := m.UpNPlan(n)208 require.NoError(t, err)209 require.Equal(t, allExceptLastTwoPlan, plan)210 // apply two migrations and re-plan all (the first two shouldn't be part of the plan anymore)211 _, err = m.UpN(2)212 require.NoError(t, err)213 plan, err = m.UpNPlan(0)214 require.NoError(t, err)215 allExceptFirstTwoPlan := allPlan[2:]216 require.Equal(t, allExceptFirstTwoPlan, plan)217 // make sure it's idempotent218 plan, err = m.UpNPlan(100)219 require.NoError(t, err)220 require.Equal(t, allExceptFirstTwoPlan, plan)221}222func TestMigrator_UpNPlan_SkipPostDeployment(t *testing.T) {223 db, err := testutil.NewDBFromEnv()224 require.NoError(t, err)225 defer cleanupDB(t, db)226 m := migrations.NewMigrator(227 db.DB,228 migrations.Source(testmigrations.All()),229 migrations.SkipPostDeployment,230 )231 migs := testmigrations.NonPostDeployment()232 var allPlan []string233 for _, migration := range migs {234 allPlan = append(allPlan, migration.Id)235 }236 // plan all except the last two237 n := len(allPlan) - 1 - 2238 allExceptLastTwoPlan := allPlan[:n]239 plan, err := m.UpNPlan(n)240 require.NoError(t, err)241 require.Equal(t, allExceptLastTwoPlan, plan)242 // apply two migrations and re-plan all (the first two shouldn't be part of the plan anymore)243 _, err = m.UpN(2)244 require.NoError(t, err)245 plan, err = m.UpNPlan(0)246 require.NoError(t, err)247 allExceptFirstTwoPlan := allPlan[2:]248 require.Equal(t, allExceptFirstTwoPlan, plan)249 // make sure it's idempotent250 plan, err = m.UpNPlan(100)251 require.NoError(t, err)252 require.Equal(t, allExceptFirstTwoPlan, plan)253}254func TestMigrator_Down(t *testing.T) {255 db, err := testutil.NewDBFromEnv()256 require.NoError(t, err)257 defer cleanupDB(t, db)258 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))259 _, err = m.Up()260 require.NoError(t, err)261 all := testmigrations.All()262 count, err := m.Down()263 require.NoError(t, err)264 require.Equal(t, len(all), count)265 currentVersion, err := m.Version()266 require.NoError(t, err)267 require.Empty(t, currentVersion)268}269func TestMigrator_Down_SkipPostDeployment(t *testing.T) {270 db, err := testutil.NewDBFromEnv()271 require.NoError(t, err)272 defer cleanupDB(t, db)273 m := migrations.NewMigrator(274 db.DB,275 migrations.Source(testmigrations.All()),276 migrations.SkipPostDeployment,277 )278 _, err = m.Up()279 require.NoError(t, err)280 migs := testmigrations.NonPostDeployment()281 count, err := m.Down()282 require.NoError(t, err)283 require.Equal(t, len(migs), count)284 currentVersion, err := m.Version()285 require.NoError(t, err)286 require.Empty(t, currentVersion)287}288func TestMigrator_Down_SkipPostDeployment_ExistingPostDeployments(t *testing.T) {289 db, err := testutil.NewDBFromEnv()290 require.NoError(t, err)291 defer cleanupDB(t, db)292 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))293 _, err = m.Up()294 require.NoError(t, err)295 all := testmigrations.All()296 // Configure migrator to skip postdeployment migrations, down migrations297 // should ignore this and operate on all applied migrations.298 migrations.SkipPostDeployment(m)299 count, err := m.Down()300 require.NoError(t, err)301 require.Equal(t, len(all), count)302 currentVersion, err := m.Version()303 require.NoError(t, err)304 require.Empty(t, currentVersion)305}306func TestMigrator_DownN(t *testing.T) {307 db, err := testutil.NewDBFromEnv()308 require.NoError(t, err)309 defer cleanupDB(t, db)310 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))311 _, err = m.Up()312 require.NoError(t, err)313 // rollback all except the first two314 all := testmigrations.All()315 n := len(all) - 2316 second := all[1]317 count, err := m.DownN(n)318 require.NoError(t, err)319 require.Equal(t, n, count)320 v, err := m.Version()321 require.NoError(t, err)322 require.Equal(t, second.Id, v)323 // resume and rollback the remaining two324 count, err = m.DownN(0)325 require.NoError(t, err)326 require.Equal(t, 2, count)327 v, err = m.Version()328 require.NoError(t, err)329 require.Empty(t, v)330 // make sure it's idempotent331 count, err = m.DownN(100)332 require.NoError(t, err)333 require.Zero(t, count)334 v, err = m.Version()335 require.NoError(t, err)336 require.Empty(t, v)337}338func TestMigrator_DownN_SkipPostDeployment(t *testing.T) {339 db, err := testutil.NewDBFromEnv()340 require.NoError(t, err)341 defer cleanupDB(t, db)342 m := migrations.NewMigrator(343 db.DB,344 migrations.Source(testmigrations.All()),345 migrations.SkipPostDeployment,346 )347 _, err = m.Up()348 require.NoError(t, err)349 // rollback all except the first two350 migs := testmigrations.NonPostDeployment()351 n := len(migs) - 2352 second := migs[1]353 count, err := m.DownN(n)354 require.NoError(t, err)355 require.Equal(t, n, count)356 v, err := m.Version()357 require.NoError(t, err)358 require.Equal(t, second.Id, v)359 // resume and rollback the remaining two360 count, err = m.DownN(0)361 require.NoError(t, err)362 require.Equal(t, 2, count)363 v, err = m.Version()364 require.NoError(t, err)365 require.Empty(t, v)366 // make sure it's idempotent367 count, err = m.DownN(100)368 require.NoError(t, err)369 require.Zero(t, count)370 v, err = m.Version()371 require.NoError(t, err)372 require.Empty(t, v)373}374func TestMigrator_DownNPlan(t *testing.T) {375 db, err := testutil.NewDBFromEnv()376 require.NoError(t, err)377 defer cleanupDB(t, db)378 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))379 _, err = m.Up()380 require.NoError(t, err)381 all := testmigrations.All()382 var allPlan []string383 for _, migration := range all {384 allPlan = append(allPlan, migration.Id)385 }386 sort.Sort(sort.Reverse(sort.StringSlice(allPlan))) // down migrations are applied in reverse order387 // plan all except the last two388 n := len(allPlan) - 1 - 2389 allExceptLastTwoPlan := allPlan[:n]390 plan, err := m.DownNPlan(n)391 require.NoError(t, err)392 require.Equal(t, allExceptLastTwoPlan, plan)393 // apply two migrations and re-plan all (the first two shouldn't be part of the plan anymore)394 _, err = m.DownN(2)395 require.NoError(t, err)396 plan, err = m.DownNPlan(0)397 require.NoError(t, err)398 allExceptFirstTwoPlan := allPlan[2:]399 require.Equal(t, allExceptFirstTwoPlan, plan)400 // make sure it's idempotent401 plan, err = m.DownNPlan(100)402 require.NoError(t, err)403 require.Equal(t, allExceptFirstTwoPlan, plan)404}405func TestMigrator_DownNPlan_SkipPostDeploymnet(t *testing.T) {406 db, err := testutil.NewDBFromEnv()407 require.NoError(t, err)408 defer cleanupDB(t, db)409 m := migrations.NewMigrator(410 db.DB,411 migrations.Source(testmigrations.All()),412 migrations.SkipPostDeployment,413 )414 _, err = m.Up()415 require.NoError(t, err)416 migs := testmigrations.NonPostDeployment()417 var migsPlan []string418 for _, migration := range migs {419 migsPlan = append(migsPlan, migration.Id)420 }421 sort.Sort(sort.Reverse(sort.StringSlice(migsPlan))) // down migrations are applied in reverse order422 // plan all except the last two423 n := len(migsPlan) - 1 - 2424 allExceptLastTwoPlan := migsPlan[:n]425 plan, err := m.DownNPlan(n)426 require.NoError(t, err)427 require.Equal(t, allExceptLastTwoPlan, plan)428 // apply two migrations and re-plan all (the first two shouldn't be part of the plan anymore)429 _, err = m.DownN(2)430 require.NoError(t, err)431 plan, err = m.DownNPlan(0)432 require.NoError(t, err)433 allExceptFirstTwoPlan := migsPlan[2:]434 require.Equal(t, allExceptFirstTwoPlan, plan)435 // make sure it's idempotent436 plan, err = m.DownNPlan(100)437 require.NoError(t, err)438 require.Equal(t, allExceptFirstTwoPlan, plan)439}440func TestMigrator_Status_Empty(t *testing.T) {441 db, err := testutil.NewDBFromEnv()442 require.NoError(t, err)443 defer cleanupDB(t, db)444 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))445 all := testmigrations.All()446 statuses, err := m.Status()447 require.NoError(t, err)448 require.Len(t, statuses, len(all))449 var expectedIDs, actualIDs []string450 for _, m := range all {451 expectedIDs = append(expectedIDs, m.Id)452 }453 for id := range statuses {454 actualIDs = append(actualIDs, id)455 }456 require.ElementsMatch(t, expectedIDs, actualIDs)457 for _, s := range statuses {458 require.False(t, s.Unknown)459 require.Nil(t, s.AppliedAt)460 }461}462func TestMigrator_Status_Full(t *testing.T) {463 db, err := testutil.NewDBFromEnv()464 require.NoError(t, err)465 defer cleanupDB(t, db)466 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))467 _, err = m.Up()468 require.NoError(t, err)469 all := testmigrations.All()470 statuses, err := m.Status()471 require.NoError(t, err)472 require.Len(t, statuses, len(all))473 var expectedIDs, actualIDs []string474 for _, m := range all {475 expectedIDs = append(expectedIDs, m.Id)476 }477 for id := range statuses {478 actualIDs = append(actualIDs, id)479 }480 require.ElementsMatch(t, expectedIDs, actualIDs)481 for _, s := range statuses {482 require.False(t, s.Unknown)483 require.NotNil(t, s.AppliedAt)484 }485}486func TestMigrator_Status_PostDeployment(t *testing.T) {487 db, err := testutil.NewDBFromEnv()488 require.NoError(t, err)489 defer cleanupDB(t, db)490 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))491 _, err = m.Up()492 require.NoError(t, err)493 all := testmigrations.All()494 statuses, err := m.Status()495 require.NoError(t, err)496 require.Len(t, statuses, len(all))497 // See migrations/testdata/fixtures/498 postDeploymentID := "20201027124302_create_post_migration_test_two_table"499 standardID := "20200319131542_create_manifests_test_table"500 postDeploymentStatus := statuses[postDeploymentID]501 require.NotNil(t, postDeploymentStatus)502 require.True(t, postDeploymentStatus.PostDeployment)503 standardStatus := statuses[standardID]504 require.NotNil(t, standardStatus)505 require.False(t, standardStatus.PostDeployment)506}507func TestMigrator_Status_Unknown(t *testing.T) {508 db, err := testutil.NewDBFromEnv()509 require.NoError(t, err)510 defer cleanupDB(t, db)511 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))512 _, err = m.Up()513 require.NoError(t, err)514 all := testmigrations.All()515 // temporarily insert fake migration record516 fakeID := "20060102150405_foo"517 fakeAppliedAt := time.Now()518 _, err = db.DB.Exec("INSERT INTO "+migrationTableName+" (id, applied_at) VALUES ($1, $2)", fakeID, fakeAppliedAt)519 require.NoError(t, err)520 defer db.DB.Exec("DELETE FROM "+migrationTableName+" WHERE id = $1", fakeID)521 statuses, err := m.Status()522 require.NoError(t, err)523 require.Len(t, statuses, len(all)+1)524 fakeStatus := statuses[fakeID]525 require.NotNil(t, fakeStatus)526 require.True(t, fakeStatus.Unknown)527 require.Equal(t, fakeAppliedAt.Round(time.Millisecond).UTC(), fakeStatus.AppliedAt.Round(time.Millisecond).UTC())528}529func TestMigrator_HasPending_No(t *testing.T) {530 db, err := testutil.NewDBFromEnv()531 require.NoError(t, err)532 defer cleanupDB(t, db)533 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))534 _, err = m.Up()535 require.NoError(t, err)536 pending, err := m.HasPending()537 require.NoError(t, err)538 require.False(t, pending)539}540func TestMigrator_HasPending_No_SkipPostDeployment(t *testing.T) {541 db, err := testutil.NewDBFromEnv()542 require.NoError(t, err)543 defer cleanupDB(t, db)544 m := migrations.NewMigrator(545 db.DB,546 migrations.Source(testmigrations.All()),547 migrations.SkipPostDeployment,548 )549 _, err = m.Up()550 require.NoError(t, err)551 pending, err := m.HasPending()552 require.NoError(t, err)553 require.False(t, pending)554}555func TestMigrator_HasPending_Yes(t *testing.T) {556 db, err := testutil.NewDBFromEnv()557 require.NoError(t, err)558 defer cleanupDB(t, db)559 m := migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))560 _, err = m.Up()561 require.NoError(t, err)562 _, err = m.DownN(1)563 require.NoError(t, err)564 pending, err := m.HasPending()565 require.NoError(t, err)566 require.True(t, pending)567}568func TestMigrator_HasPending_Yes_PendingPostDeployment(t *testing.T) {569 db, err := testutil.NewDBFromEnv()570 require.NoError(t, err)571 defer cleanupDB(t, db)572 m := migrations.NewMigrator(573 db.DB,574 migrations.Source(testmigrations.All()),575 migrations.SkipPostDeployment,576 )577 _, err = m.Up()578 require.NoError(t, err)579 m = migrations.NewMigrator(db.DB, migrations.Source(testmigrations.All()))580 pending, err := m.HasPending()581 require.NoError(t, err)582 require.True(t, pending)583}584func cleanupDB(t *testing.T, db *datastore.DB) {585 _, err := db.DB.Exec("DELETE FROM " + migrationTableName)586 require.NoError(t, err)587 require.NoError(t, db.Close())588}...

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main.go

Source:main.go Github

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...118 dbdebug := false119 if c.String("dbdebug") == "true" {120 dbdebug = true121 }122 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)123 return migrator.Init(ctx)124 },125 },126 {127 Name: "migrate",128 Usage: "migrate database",129 Action: func(c *cli.Context) error {130 ctx, app, err := app.StartCLI(c)131 if err != nil {132 return err133 }134 defer app.Stop()135 dbdebug := false136 if c.String("dbdebug") == "true" {137 dbdebug = true138 }139 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)140 _, err = migrator.Migrate(ctx)141 return err142 },143 },144 {145 Name: "rollback",146 Usage: "rollback the last migration group",147 Action: func(c *cli.Context) error {148 ctx, app, err := app.StartCLI(c)149 if err != nil {150 return err151 }152 defer app.Stop()153 dbdebug := false154 if c.String("dbdebug") == "true" {155 dbdebug = true156 }157 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)158 _, err = migrator.Rollback(ctx)159 return err160 },161 },162 {163 Name: "lock",164 Usage: "lock migrations",165 Action: func(c *cli.Context) error {166 ctx, app, err := app.StartCLI(c)167 if err != nil {168 return err169 }170 defer app.Stop()171 dbdebug := false172 if c.String("dbdebug") == "true" {173 dbdebug = true174 }175 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)176 return migrator.Lock(ctx)177 },178 },179 {180 Name: "unlock",181 Usage: "unlock migrations",182 Action: func(c *cli.Context) error {183 ctx, app, err := app.StartCLI(c)184 if err != nil {185 return err186 }187 defer app.Stop()188 dbdebug := false189 if c.String("dbdebug") == "true" {190 dbdebug = true191 }192 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)193 return migrator.Unlock(ctx)194 },195 },196 {197 Name: "create_go",198 Usage: "create Go migration",199 Action: func(c *cli.Context) error {200 ctx, app, err := app.StartCLI(c)201 if err != nil {202 return err203 }204 defer app.Stop()205 dbdebug := false206 if c.String("dbdebug") == "true" {207 dbdebug = true208 }209 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)210 _, err = migrator.CreateGoMigration(ctx, c.Args().Get(0))211 return err212 },213 },214 {215 Name: "create_sql",216 Usage: "create SQL migration",217 Action: func(c *cli.Context) error {218 ctx, app, err := app.StartCLI(c)219 if err != nil {220 return err221 }222 defer app.Stop()223 dbdebug := false224 if c.String("dbdebug") == "true" {225 dbdebug = true226 }227 migrator := migrate.NewMigrator(app.DB(c.String("env"), dbdebug), migrations)228 _, err = migrator.CreateSQLMigrations(ctx, c.Args().Get(0))229 return err230 },231 },232 {233 Name: "load_default_fixtures",234 Usage: "load default data",235 Action: func(c *cli.Context) error {236 ctx, app, err := app.StartCLI(c)237 if err != nil {238 return err239 }240 defer app.Stop()241 dbdebug := false...

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migrations.go

Source:migrations.go Github

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2// Migrator is a struct for handling in-place store migrations.3type Migrator struct {4 keeper Keeper5}6// NewMigrator returns a new Migrator.7func NewMigrator(keeper Keeper) Migrator {8 return Migrator{9 keeper: keeper,10 }11}...

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NewMigrator

Using AI Code Generation

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1import (2func main() {3 db, err := sql.Open("sqlite3", "test.db")4 if err != nil {5 fmt.Println(err)6 }7 defer db.Close()8 m, err := goose.NewMigrator(db, goose.SqliteDialect{})9 if err != nil {10 fmt.Println(err)11 }12 err = m.Up()13 if err != nil {14 fmt.Println(err)15 }16}17The goose.NewMigrator function returns a new instance of the Migrator type, which is used to run migrations. The goose.SqliteDialect{} is used to specify the dialect to use for the database. The goose.SqliteDialect{} is a struct type that implements the goose.Dialect interface. The goose.Dialect interface contains the following methods:18CreateVersionTable(*sql.DB) error19DropVersionTable(*sql.DB) error20InsertVersion(*sql.DB, string) error21SetVersion(*sql.DB, int64) error22Version(*sql.DB) (int64, error)23The goose.SqliteDialect{} type implements the goose.Dialect interface. The goose.SqliteDialect{} type has the following methods:24CreateVersionTable(*sql.DB) error25DropVersionTable(*sql.DB) error26InsertVersion(*sql.DB, string) error27SetVersion(*sql.DB, int64) error28Version(*sql.DB) (int64, error)

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NewMigrator

Using AI Code Generation

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1import (2func main() {3 if err != nil {4 log.Fatal(err)5 }6 err = goose.Run("up", db, "migrations")7 if err != nil {8 log.Fatal(err)9 }10 fmt.Println("Migration done successfully")11}12To run a specific migration, we can use the goose.Run() method as follows:13goose.Run("up", db, "migrations", "1_create_users_table.go")14If we want to run all the migrations up to a specific migration, we can use the goose.Run() method as follows:15goose.Run("up-to", db, "migrations", "1_create_users_table.go")16To run a specific migration down, we can use the goose.Run() method as follows:17goose.Run("down", db, "migrations", "1_create_users_table.go")18To run all the migrations down, we can use the goose.Run() method as follows:19goose.Run("down", db, "migrations")20To check the current version of the database, we can use the goose.Run() method as follows:21goose.Run("status", db, "migrations")22To create a new migration, we can use the goose.Create() method as follows:23goose.Create("create_users_table", "migrations")

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NewMigrator

Using AI Code Generation

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1import (2func main() {3 m := migration.NewMigrator()4 m.CreateMigration("create_users_table", func() {5 fmt.Println("Create users table")6 })7 m.Run()8}9import (10func main() {11 m := migration.NewMigrator()12 m.CreateMigration("create_users_table", func() {13 fmt.Println("Create users table")14 })15 m.Run()16}17import (18func main() {19 m := migration.NewMigrator()20 m.CreateMigration("create_users_table", func() {21 fmt.Println("Create users table")22 })23 m.Run()24}25import (26func main() {27 m := migration.NewMigrator()28 m.CreateMigration("create_users_table", func() {29 fmt.Println("Create users table")30 })31 m.Run()32}33import (34func main() {35 m := migration.NewMigrator()36 m.CreateMigration("create_users_table", func() {37 fmt.Println("Create users table")38 })39 m.Run()40}41import (42func main() {43 m := migration.NewMigrator()44 m.CreateMigration("create_users_table", func() {45 fmt.Println("Create users table")46 })47 m.Run()48}

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