Made database structure. Started to implement the database system. Cr…

src/main/java/app/Main.java

@@ -1,4 +1,16 @@
 package app;
 
+import static db.Database.URL;
+
+import db.Database;
+
 public class Main {
+  public static void main(String[] args) {
+    try{
+      Database.getConnection();
+      System.out.println("Database connected");
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+  }
 }

src/main/java/dao/CauseDao.java

@@ -0,0 +1,4 @@
+package dao;
+
+public class CauseDao {
+}

src/main/java/dao/DonationDao.java

@@ -0,0 +1,4 @@
+package dao;
+
+public class DonationDao {
+}

src/main/java/dao/OrganizationDao.java

@@ -0,0 +1,4 @@
+package dao;
+
+public class OrganizationDao {
+}

src/main/java/dao/UserDao.java

@@ -0,0 +1,21 @@
+package dao;
+
+import db.Database;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import model.User;
+
+public class UserDao {
+
+  public void insert(User user) {
+    String sql = "INSERT INTO user(name, e_mail, password_hash) VALUES(?, ?, ?)";
+
+    try (Connection conn = Database.getConnection()) {
+      PreparedStatement stmt = conn.prepareStatement(sql);
+    } catch (SQLException e) {
+      throw new RuntimeException(e);
+    }
+
+  }
+}

src/main/java/db/Database.java

@@ -0,0 +1,20 @@
+package db;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public final class Database {
+  public static final String URL = "jdbc:sqlite:givehope.db";
+  public static Connection getConnection() throws SQLException {
+    Connection conn = DriverManager.getConnection(URL);
+
+    try (Statement stmt = conn.createStatement()) {
+      stmt.execute("PRAGMA foreign_keys = ON;");
+    }
+
+    return conn;
+  }
+
+}

src/main/java/model/User.java

@@ -5,7 +5,7 @@
 public class User {
   private String userName;
   private String phoneNumber;
-  private final String eMail;
+  private String eMail;
   private String password;
 
   public User(String userName, String phoneNumber, String password, String eMail) {

src/main/resources/schema.sql

@@ -0,0 +1,33 @@
+PRAGMA foreign_keys = ON;
+
+CREATE TABLE IF NOT EXISTS user (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    e_mail TEXT NOT NULL UNIQUE,
+    password_hash TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS organization (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    description TEXT
+);
+
+CREATE TABLE IF NOT EXISTS cause (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    description TEXT,
+    organization_id INTEGER NOT NULL,
+    FOREIGN KEY (organization_id) REFERENCES organization(id)
+    ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS donation (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    amount REAL NOT NULL,
+    donation_date TEXT NOT NULL,
+    user_id INTEGER,
+    cause_id INTEGER NOT NULL,
+    FOREIGN KEY (user_id) REFERENCES user(id),
+    FOREIGN KEY (cause_id) REFERENCES cause(id)
+    );