Added backend

backend/database/database.go

@@ -0,0 +1,24 @@
+package database
+
+import (
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+var globDatabase *gorm.DB
+
+func newDatabaseConnection(dialector gorm.Dialector) (*gorm.DB, error) {
+	return gorm.Open(dialector)
+}
+
+func NewSqlite3Connection(databaseFile string) (*gorm.DB, error) {
+	return newDatabaseConnection(sqlite.Open(databaseFile))
+}
+
+func GetDB() *gorm.DB {
+	return globDatabase
+}
+
+func SetGlobDB(database *gorm.DB) {
+	globDatabase = database
+}