diff --git a/dao/purchase.go b/dao/purchase.go
index 2a2bb5c..01e1b1a 100644
--- a/dao/purchase.go
+++ b/dao/purchase.go
@@ -51,7 +51,7 @@ func (dao *dbPurchaseDao) Update(context context.Context, purchase *database.Pur
 
 func (dao *dbPurchaseDao) Get(context context.Context, id int64) (database.Purchase, error) {
 	var purchase = database.Purchase{}
-	if err := dao.db.Preload("Item").Where("id = ?", id).Take(&purchase).Error; err != nil {
+	if err := dao.db.Preload("Item").Preload("Item.Stats").Where("id = ?", id).Take(&purchase).Error; err != nil {
 		return purchase, err
 	}
 	return purchase, nil
diff --git a/database/category.go b/database/category.go
index c6b31f6..e516466 100644
--- a/database/category.go
+++ b/database/category.go
@@ -4,5 +4,5 @@ type Category struct {
 	Id   int64  `json:"id" gorm:"primaryKey;not null;autoIncrement:false"`
 	Name string `json:"name" gorm:"not null;size:32"`
 
-	Items []*Item `json:"items" gorm:"foreignKey:CategoryId"`
+	//Items []*Item `json:"items" gorm:"foreignKey:CategoryId"`
 }
diff --git a/database/connection.go b/database/connection.go
index 036ca55..2d16a33 100644
--- a/database/connection.go
+++ b/database/connection.go
@@ -17,11 +17,15 @@ func Connect() (*gorm.DB, error) {
 
 func ConnectDBWithConfig(config *util.DBConfig) (*gorm.DB, error) {
 	if config.DBDialect == "sqlite3" {
-		db, err := gorm.Open(sqlite.Open(config.DBPath), &gorm.Config{})
+		db, err := gorm.Open(sqlite.Open(config.DBPath), &gorm.Config{
+			DisableForeignKeyConstraintWhenMigrating: true,
+		})
 		return db.Debug(), err
 	} else if config.DBDialect == "mysql" {
 		dbPath := fmt.Sprintf("%s:%s@%s", config.Username, config.Password, config.DBPath)
-		db, err := gorm.Open(mysql.Open(dbPath), &gorm.Config{})
+		db, err := gorm.Open(mysql.Open(dbPath), &gorm.Config{
+			DisableForeignKeyConstraintWhenMigrating: true,
+		})
 		if err != nil {
 			panic(err)
 		}
diff --git a/database/data.sql b/database/data.sql
index 675b124..ac8acf3 100644
--- a/database/data.sql
+++ b/database/data.sql
@@ -1,3 +1,5 @@
+CREATE SCHEMA IF NOT EXISTS `data-marketplace` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
 insert into categories(id, name) values (100, 'Uncategorized');
 insert into categories(id, name) values (1, 'AI Model');
 insert into categories(id, name) values (2, 'Code Resource');
diff --git a/database/item.go b/database/item.go
index 8125f87..5c2b149 100644
--- a/database/item.go
+++ b/database/item.go
@@ -42,7 +42,7 @@ type Item struct {
 	UpdatedGnfdHeight int64           `json:"updated_gnfd_height"`
 	UpdatedBscHeight  int64           `json:"updated_bsc_height"`
 
-	Stats *ItemStats `json:"stats" gorm:"foreignKey:ItemId"`
+	Stats *ItemStats `json:"stats"`
 }
 
 type ItemStats struct {