add methods in Repository and Model for importing data

kontor-gin/internal/repository/profile.go

@@ -36,3 +36,26 @@ func (repository *ProfileRepository) FindProfileByEmail(email string) (*models.P
 	}
 	return &profile, nil
 }
+
+func (repository *ProfileRepository) Import(profiles models.ProfileDTOList) {
+	slog.Info("ProfileRepository#Import")
+	for index, profile := range profiles {
+		slog.Info("importing", "index", index, "profile", profile)
+		model := profile.ConvertDTOToModel()
+		existing_profile := models.Profile{ID: profile.ID}
+		result_existing := repository.db.First(&existing_profile)
+		if result_existing.Error != nil {
+			slog.Info("check existing id: not found - inserting")
+			result := repository.db.Create(&model)
+			if result.Error != nil {
+				slog.Info("error during import", "error", result.Error.Error())
+			}
+		} else {
+			slog.Info("check existing id: found - updating")
+			result := repository.db.Save(&model)
+			if result.Error != nil {
+				slog.Info("error during updating", "error", result.Error.Error())
+			}
+		}
+	}
+}