feat: associate dataset sources with owners

backend/internal/initdb/dataset.go

@@ -43,6 +43,9 @@ func InitDataset(database *gorm.DB) error {
 	}
 
 	return database.Transaction(func(tx *gorm.DB) error {
+		if err := prepareDatasetSourceOwners(tx); err != nil {
+			return err
+		}
 		if err := prepareDatasetItems(tx); err != nil {
 			return err
 		}
@@ -55,6 +58,29 @@ func InitDataset(database *gorm.DB) error {
 	})
 }
 
+func prepareDatasetSourceOwners(tx *gorm.DB) error {
+	var sources []models.SaDatasetSource
+	if err := tx.Where("owner_id = ? OR owner_identity = ?", 0, "").Find(&sources).Error; err != nil {
+		return err
+	}
+	for _, source := range sources {
+		ownerID := source.OwnerID
+		if ownerID == 0 {
+			ownerID = source.CreatedBy
+		}
+		var owner models.SaUser
+		if err := tx.Select("identity").First(&owner, ownerID).Error; err != nil {
+			return err
+		}
+		if err := tx.Model(&source).Updates(map[string]any{
+			"owner_id": ownerID, "owner_identity": owner.Identity,
+		}).Error; err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 func prepareDatasetItems(tx *gorm.DB) error {
 	if tx.Migrator().HasIndex(&models.SaDatasetItem{}, "idx_sa_dataset_item_source_external") {
 		return nil
@@ -85,7 +111,7 @@ func prepareDatasetItems(tx *gorm.DB) error {
 
 func upsertDefaultDatasetSource(tx *gorm.DB, root models.SaUser, definition defaultDatasetSource) error {
 	var source models.SaDatasetSource
-	err := tx.Where("created_by = ? AND seed_key = ?", root.ID, definition.Key).First(&source).Error
+	err := tx.Where("owner_id = ? AND seed_key = ?", root.ID, definition.Key).First(&source).Error
 	if err == nil {
 		return tx.Model(&source).Updates(map[string]any{
 			"url": definition.URL, "icon_url": definition.IconURL, "kind": "rss",
@@ -96,7 +122,7 @@ func upsertDefaultDatasetSource(tx *gorm.DB, root models.SaUser, definition defa
 	}
 
 	knownURLs := append([]string{definition.URL}, definition.LegacyURLs...)
-	err = tx.Where("created_by = ? AND url IN ?", root.ID, knownURLs).First(&source).Error
+	err = tx.Where("owner_id = ? AND url IN ?", root.ID, knownURLs).First(&source).Error
 	if err == nil {
 		return tx.Model(&source).Updates(map[string]any{
 			"seed_key": definition.Key, "url": definition.URL,
@@ -109,7 +135,7 @@ func upsertDefaultDatasetSource(tx *gorm.DB, root models.SaUser, definition defa
 
 	seedKey := definition.Key
 	return tx.Create(&models.SaDatasetSource{
-		CreatedBy: root.ID, SeedKey: &seedKey, Name: definition.Name,
+		OwnerID: root.ID, CreatedBy: root.ID, SeedKey: &seedKey, Name: definition.Name,
 		Kind: "rss", URL: definition.URL, IconURL: definition.IconURL,
 		Description: "默认资讯订阅", Enabled: true,
 	}).Error

backend/internal/initdb/dataset_test.go

@@ -31,6 +31,8 @@ func TestInitDatasetCreatesDefaultSourcesWhenTableIsEmpty(t *testing.T) {
 		require.Equal(t, expected.Key, *sources[index].SeedKey)
 		require.Equal(t, "rss", sources[index].Kind)
 		require.True(t, sources[index].Enabled)
+		require.Equal(t, root.ID, sources[index].OwnerID)
+		require.Equal(t, root.Identity, sources[index].OwnerIdentity)
 		require.Equal(t, root.ID, sources[index].CreatedBy)
 		require.Equal(t, root.Identity, sources[index].CreatedByIdentity)
 	}
@@ -60,6 +62,30 @@ func TestInitDatasetAddsMissingDefaultsWithoutChangingCustomSources(t *testing.T
 	require.Nil(t, preserved.SeedKey)
 }
 
+func TestInitDatasetBackfillsLegacySourceOwners(t *testing.T) {
+	database := newDatasetInitTestDatabase(t)
+	require.NoError(t, InitUser(database))
+	other := models.SaUser{
+		Email: "other@example.com", DisplayName: "Other",
+		PasswordHash: "hash", Role: "user",
+	}
+	require.NoError(t, database.Create(&other).Error)
+	source := models.SaDatasetSource{
+		CreatedBy: other.ID, Name: "Existing source", Kind: "manual", Enabled: true,
+	}
+	require.NoError(t, database.Create(&source).Error)
+	require.NoError(t, database.Model(&source).Updates(map[string]any{
+		"owner_id": 0, "owner_identity": "",
+	}).Error)
+
+	require.NoError(t, InitDataset(database))
+
+	require.NoError(t, database.First(&source, source.ID).Error)
+	require.Equal(t, other.ID, source.OwnerID)
+	require.Equal(t, other.Identity, source.OwnerIdentity)
+	require.Equal(t, other.ID, source.CreatedBy)
+}
+
 func TestInitDatasetRejectsMissingRootInsteadOfAssigningDefaultsToAnotherUser(t *testing.T) {
 	database := newDatasetInitTestDatabase(t)
 	user := models.SaUser{