Added transaction feature, fixed some mistakes

backend/src/api/routers/families_test.go

@@ -19,6 +19,14 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func int64Ptr(v int64) *int64 {
+	return &v
+}
+
+func stringPtr(v string) *string {
+	return &v
+}
+
 type familyServiceMock struct {
 	createFn  func(ctx context.Context, req domain.CreateFamilyRequest) (*domain.Family, error)
 	getByIDFn func(ctx context.Context, id int64) (*domain.Family, error)
@@ -68,8 +76,8 @@ func sampleFamily() *domain.Family {
 		ID:               7,
 		Name:             "Belan",
 		OwnerID:          10,
-		TelegramChatID:   12345,
-		TelegramChatName: "Family Chat",
+		TelegramChatID:   int64Ptr(12345),
+		TelegramChatName: stringPtr("Family Chat"),
 		CreatedAt:        time.Date(2026, time.January, 21, 10, 0, 0, 0, time.UTC),
 		UpdatedAt:        time.Date(2026, time.January, 21, 11, 0, 0, 0, time.UTC),
 	}
@@ -106,9 +114,11 @@ func TestFamiliesRouter_Create(t *testing.T) {
 		expected := sampleFamily()
 		r := setupFamiliesRouter(&familyServiceMock{createFn: func(ctx context.Context, req domain.CreateFamilyRequest) (*domain.Family, error) {
 			assert.Equal(t, "Belan", req.Name)
+			assert.Nil(t, req.TelegramChatID)
+			assert.Nil(t, req.TelegramChatName)
 			return expected, nil
 		}})
-		req := httptest.NewRequest(http.MethodPost, "/api/v1/families", bytes.NewBufferString(`{"name":"Belan","owner_id":10,"telegram_chat_id":12345,"telegram_chat_name":"Family Chat"}`))
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/families", bytes.NewBufferString(`{"name":"Belan","owner_id":10}`))
 		req.Header.Set("Content-Type", "application/json")
 		w := httptest.NewRecorder()
 
@@ -233,7 +243,8 @@ func TestFamiliesRouter_Update(t *testing.T) {
 			assert.Equal(t, int64(7), id)
 			require.NotNil(t, req.Name)
 			assert.Equal(t, updatedName, *req.Name)
-			assert.Equal(t, "Updated", req.TelegramChatName)
+			require.NotNil(t, req.TelegramChatName)
+			assert.Equal(t, "Updated", *req.TelegramChatName)
 			return expected, nil
 		}})
 		req := httptest.NewRequest(http.MethodPatch, "/api/v1/families/7", bytes.NewBufferString(`{"name":"`+updatedName+`","telegram_chat_name":"Updated"}`))