add sql rust interaction file

backend/user.rs

@@ -0,0 +1,52 @@
+use sqlite::Connection;
+
+pub struct DataBase {
+    connection: Connection,
+}
+
+impl DataBase {
+    pub fn open(name: String) -> DataBase {
+        let connection = sqlite::open(name + ".db").unwrap();
+        DataBase { connection }
+    }
+
+    fn data_execute(&self, arg: String){
+        self.connection.execute(arg).unwrap();
+    }
+
+    fn create_table(&self, table: String){
+        self.data_execute("CREATE TABLE ".to_owned() + &table + ";");
+    }
+
+    fn add_column(&self, table: String, arg: String){
+        self.data_execute("ALTER TABLE ".to_owned() + &table + " ADD " + &arg + ";");
+    }
+}
+
+
+pub fn main() {
+    let db = DataBase::open(String::from("test"));
+    db.create_table("test".to_string());
+    db.add_column("test".to_string(), "name TEXT".to_string());
+//     println!("Hello, world!");
+
+// let connection = sqlite::open("test.db").unwrap();
+
+// let query = "
+//     CREATE TABLE users (name TEXT, age INTEGER);
+//     INSERT INTO users VALUES ('Alice', 42);
+//     INSERT INTO users VALUES ('Bob', 69);
+// ";
+
+// connection.execute(query).unwrap();
+}
+// struct User {
+//     name : string,
+//     level : int,
+// }
+
+// impl User {
+//     fn Create(&self){
+        
+//     }
+// }