feat: simplify code

Author: andyli86

backend/plugins/dora/impl/impl.go

@@ -116,9 +116,7 @@ func (p Dora) RootPkgPath() string {
 }
 
 func (p Dora) MigrationScripts() []plugin.MigrationScript {
-	return []plugin.MigrationScript{
-		migrationscripts.DoraMigrationScript,
-	}
+	return migrationscripts.All()
 }
 
 func (p Dora) MakeMetricPluginPipelinePlanV200(projectName string, options json.RawMessage) (coreModels.PipelinePlan, errors.Error) {

backend/plugins/dora/models/migrationscripts/register.go

@@ -18,30 +18,15 @@ limitations under the License.
 package migrationscripts
 
 import (
-	"github.com/apache/incubator-devlake/core/context"
-	"github.com/apache/incubator-devlake/core/errors"
-	"github.com/apache/incubator-devlake/plugins/dora/models"
+	"github.com/apache/incubator-devlake/core/plugin"
 )
 
-// Export the migration script for use in impl.go
-var DoraMigrationScript = &doraMigrationScript{}
-
-type doraMigrationScript struct{}
-
-func (script *doraMigrationScript) Up(basicRes context.BasicRes) errors.Error {
-	// Just run the migration once - directly on the model
-	db := basicRes.GetDal()
-	err := db.AutoMigrate(&models.IssueLeadTimeMetric{})
-	if err != nil {
-		return errors.Convert(err)
+// All return all the migration scripts
+func All() []plugin.MigrationScript {
+	return []plugin.MigrationScript{
+		new(addDoraBenchmark),
+		new(fixDoraBenchmarkMetric),
+		new(adddoraBenchmark2023),
+		new(addIssueLeadTimeMetricsTable),
 	}
-	return nil
-}
-
-func (*doraMigrationScript) Version() uint64 {
-	return 20220916000001
-}
-
-func (*doraMigrationScript) Name() string {
-	return "dora init schemas including issue lead time metrics"
 }