feat(publish): 实体键唯一索引，保证一个实体一行

internal/repository/entity_key_unique_integration_test.go

@@ -0,0 +1,77 @@
+//go:build integration
+
+// 集成测试：实体键上的部分唯一索引必须阻止「同一实体两行」，
+// 同时不阻止「实体键相同但已软删」的行（与 RunwayEntityState 的 is_deleted = 0 口径一致）。
+package repository
+
+import (
+	"context"
+	"testing"
+
+	"fashionapi/internal/model"
+)
+
+// TestRunwayEntityKeyUnique 同一实体键的第二行应被拒绝；软删后可以再插入。
+func TestRunwayEntityKeyUnique(t *testing.T) {
+	db := testDB(t)
+	applyMigration(t, db, "2026-09-22-01-single-table-publish.sql")
+	applyMigration(t, db, "2026-09-22-03-entity-key-unique.sql")
+	repo := NewIngestRepository(db)
+	ctx := context.Background()
+
+	const season = "SS95"
+	rw := newRunwayForIngest(1, 1, season, "rtw", "uniq-a.jpg")
+	id, err := repo.CreateRunwayWithImages(ctx, rw, newRunwayImages("uniq-a.jpg"))
+	if err != nil {
+		t.Fatalf("首行应能插入: %v", err)
+	}
+	t.Cleanup(func() {
+		db.Exec("DELETE FROM brand_runway_images WHERE runway_id = ?", id)
+		db.Exec("DELETE FROM brand_runways WHERE id = ?", id)
+	})
+
+	dup := newRunwayForIngest(1, 1, season, "rtw", "uniq-b.jpg")
+	if _, err := repo.CreateRunwayWithImages(ctx, dup, newRunwayImages("uniq-b.jpg")); err == nil {
+		t.Fatalf("同一实体键的第二行应被唯一索引拒绝，实际插入成功")
+	}
+
+	// 软删首行后，实体键不再占用（与 is_deleted = 0 的部分索引口径一致）。
+	if err := db.Model(&model.BrandRunway{}).Where("id = ?", id).Update("is_deleted", 1).Error; err != nil {
+		t.Fatalf("软删失败: %v", err)
+	}
+	again := newRunwayForIngest(1, 1, season, "rtw", "uniq-c.jpg")
+	newID, err := repo.CreateRunwayWithImages(ctx, again, newRunwayImages("uniq-c.jpg"))
+	if err != nil {
+		t.Fatalf("软删后应可再插入同实体键: %v", err)
+	}
+	t.Cleanup(func() {
+		db.Exec("DELETE FROM brand_runway_images WHERE runway_id = ?", newID)
+		db.Exec("DELETE FROM brand_runways WHERE id = ?", newID)
+	})
+}
+
+// TestStreetEntityKeyUnique 街拍侧同理（实体键 = city + year）。
+func TestStreetEntityKeyUnique(t *testing.T) {
+	db := testDB(t)
+	applyMigration(t, db, "2026-09-22-01-single-table-publish.sql")
+	applyMigration(t, db, "2026-09-22-03-entity-key-unique.sql")
+	repo := NewIngestRepository(db)
+	ctx := context.Background()
+
+	const city = "UniqTestCity"
+	const year = 1994
+	snap := &model.StreetSnap{JobID: 1, Title: "uniq", Year: year, City: city, Status: model.StatusPending}
+	id, err := repo.CreateStreetSnapWithImages(ctx, snap, []model.StreetSnapImage{{Image: "uniq-a.jpg", SortOrder: 1}})
+	if err != nil {
+		t.Fatalf("首行应能插入: %v", err)
+	}
+	t.Cleanup(func() {
+		db.Exec("DELETE FROM street_snap_images WHERE snap_id = ?", id)
+		db.Exec("DELETE FROM street_snaps WHERE id = ?", id)
+	})
+
+	dup := &model.StreetSnap{JobID: 1, Title: "uniq", Year: year, City: city, Status: model.StatusPending}
+	if _, err := repo.CreateStreetSnapWithImages(ctx, dup, []model.StreetSnapImage{{Image: "uniq-b.jpg", SortOrder: 1}}); err == nil {
+		t.Fatalf("同一实体键的第二行应被唯一索引拒绝，实际插入成功")
+	}
+}