pre migration

interfaces.go

@@ -14,3 +14,8 @@ type EntitiesProvider interface {
 	maf.Module
 	GetDBEntities() []interface{}
 }
+
+type PreMigrationConsumer interface {
+	Consumer
+	DBPreMigration(db *gorm.DB) error
+}

module.go

@@ -110,6 +110,15 @@ func (m *Module) autoMigrate() error {
 
 	var err error
 
+	for _, module := range m.manager.GetModulesList() {
+		if preMigrationModule, ok := module.(PreMigrationConsumer); ok {
+			err = preMigrationModule.DBPreMigration(m.db)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
 	err = m.autoMigrateTables()
 	if err != nil {
 		return err