fix: enable experimental column altering for cockroachdb (see #442)

config/db_opts.go

@@ -0,0 +1,35 @@
+package config
+
+import (
+	"gorm.io/gorm"
+)
+
+type WakapiDBOpts struct {
+	dbConfig *dbConfig
+}
+
+func GetWakapiDBOpts(dbConfig *dbConfig) *WakapiDBOpts {
+	return &WakapiDBOpts{dbConfig: dbConfig}
+}
+
+func (opts WakapiDBOpts) Apply(config *gorm.Config) error {
+	return nil
+}
+
+func (opts WakapiDBOpts) AfterInitialize(db *gorm.DB) error {
+	// initial session variables
+	if opts.dbConfig.Type == "cockroach" {
+		// https://www.cockroachlabs.com/docs/stable/experimental-features.html#alter-column-types
+		if err := db.Exec("SET enable_experimental_alter_column_type_general = true;").Error; err != nil {
+			return err
+		}
+	}
+
+	if opts.dbConfig.IsSQLite() {
+		if err := db.Exec("PRAGMA foreign_keys = ON;").Error; err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

main.go

@@ -132,14 +132,11 @@ func main() {
 
 	// Connect to database
 	var err error
-	db, err = gorm.Open(config.Db.GetDialector(), &gorm.Config{Logger: gormLogger})
+	db, err = gorm.Open(config.Db.GetDialector(), &gorm.Config{Logger: gormLogger}, conf.GetWakapiDBOpts(&config.Db))
 	if err != nil {
 		logbuch.Error(err.Error())
 		logbuch.Fatal("could not open database")
 	}
-	if config.Db.IsSQLite() {
-		db.Exec("PRAGMA foreign_keys = ON;")
-	}
 
 	if config.IsDev() {
 		db = db.Debug()

models/summary.go

@@ -34,7 +34,7 @@ type Summary struct {
 	Machines         SummaryItems `json:"machines" gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
 	Labels           SummaryItems `json:"labels" gorm:"-"`   // labels are not persisted, but calculated at runtime, i.e. when summary is retrieved
 	Branches         SummaryItems `json:"branches" gorm:"-"` // branches are not persisted, but calculated at runtime in case a project filter is applied
-	NumHeartbeats    int          `json:"-" gorm:"default:0"`
+	NumHeartbeats    int          `json:"-"`
 }
 
 type SummaryItems []*SummaryItem

models/user.go

@@ -20,7 +20,7 @@ type User struct {
 	Password          string     `json:"-"`
 	CreatedAt         CustomTime `gorm:"type:timestamp; default:CURRENT_TIMESTAMP" swaggertype:"string" format:"date" example:"2006-01-02 15:04:05.000"`
 	LastLoggedInAt    CustomTime `gorm:"type:timestamp; default:CURRENT_TIMESTAMP" swaggertype:"string" format:"date" example:"2006-01-02 15:04:05.000"`
-	ShareDataMaxDays  int        `json:"-" gorm:"default:0"`
+	ShareDataMaxDays  int        `json:"-"`
 	ShareEditors      bool       `json:"-" gorm:"default:false; type:bool"`
 	ShareLanguages    bool       `json:"-" gorm:"default:false; type:bool"`
 	ShareProjects     bool       `json:"-" gorm:"default:false; type:bool"`