refactor: clean code

internal/repository/settings.go

@@ -2,6 +2,8 @@ package repository
 
 import (
 	"context"
+	"database/sql"
+	"errors"
 
 	"github.com/pocketbase/dbx"
 	"github.com/usual2970/certimate/internal/app"
@@ -14,9 +16,16 @@ func NewSettingsRepository() *SettingsRepository {
 	return &SettingsRepository{}
 }
 
-func (s *SettingsRepository) GetByName(ctx context.Context, name string) (*domain.Settings, error) {
-	record, err := app.GetApp().Dao().FindFirstRecordByFilter("settings", "name={:name}", dbx.Params{"name": name})
+func (r *SettingsRepository) GetByName(ctx context.Context, name string) (*domain.Settings, error) {
+	record, err := app.GetApp().Dao().FindFirstRecordByFilter(
+		"settings",
+		"name={:name}",
+		dbx.Params{"name": name},
+	)
 	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, domain.ErrRecordNotFound
+		}
 		return nil, err
 	}