Feat: Turned DAO objects into non-static object for coupling

helpmehelpapplication/src/main/java/ntnu/systemutvikling/team6/database/DAO/DonationDAO.java

@@ -11,16 +11,20 @@
  * Database. Usally called from the DonationPageController, where the user confirms their donation.
  */
 public class DonationDAO {
-  private static final DatabaseConnection connection = new DatabaseConnection();
+  private final DatabaseConnection connection;
 
-  /**
+    public DonationDAO(DatabaseConnection connection) {
+        this.connection = connection;
+    }
+
+    /**
    * Gets the total ammount of donations for a given charity, and sends it to the database throught
    * MySQL.
    *
    * @param charity
    * @param amount
    */
-  public static void addDonation(Charity charity, User user, double amount) {
+  public void addDonation(Charity charity, User user, double amount) {
     String sql_query =
         """
                 INSERT INTO Donations (UUID_Donations, amount, date, charity_id, user_id)

helpmehelpapplication/src/main/java/ntnu/systemutvikling/team6/database/DAO/UserDAO.java

@@ -14,16 +14,21 @@
  */
 public class UserDAO {
 
-  private static final DatabaseConnection connection = new DatabaseConnection();
+  private final DatabaseConnection connection;
 
-  /**
+    public UserDAO(DatabaseConnection connection) {
+        this.connection = connection;
+    }
+
+    /**
    * Gets the user and settings information and sends it to the database through MySQL.
    *
+   *
    * @param user the user to be saved in the database.
    * @throws RuntimeException if a database error occurs during the operation
+   * @return true or false based on if the register is a success or not
    */
-  public static void registerUser(User user) {
-
+  public boolean registerUser(User user) {
     String userSql =
         """
       INSERT INTO User (
@@ -48,6 +53,9 @@ INSERT INTO Settings (
       VALUES (?, ?, ?, ?)
         """;
 
+    int psUserRows = 0;
+    int psSettingsRows = 0;
+
     try (Connection conn = connection.getMySqlConnection()) {
 
       conn.setAutoCommit(false);
@@ -61,7 +69,7 @@ INSERT INTO Settings (
         psUser.setString(5, user.getPasswordHash());
         psUser.setString(6, user.getRole().name());
 
-        psUser.executeUpdate();
+        psUserRows = psUser.executeUpdate();
       }
 
       try (PreparedStatement psSettings = conn.prepareStatement(settingsSql)) {
@@ -71,13 +79,16 @@ INSERT INTO Settings (
         psSettings.setString(3, user.getSettings().getLanguage().name());
         psSettings.setBoolean(4, user.getSettings().isLightMode());
 
-        psSettings.executeUpdate();
+        psSettingsRows = psSettings.executeUpdate();
+
       }
 
       conn.commit();
 
+      return psUserRows > 0 && psSettingsRows > 0;
     } catch (SQLException e) {
-      throw new RuntimeException("Failed to insert user into database", e);
+      e.printStackTrace();
+      return false;
     }
   }
 }