Fix database configuration: Add model imports, fix foreign key references, and disable underscored mode

backend/config/database.js

@@ -18,7 +18,7 @@ const sequelize = new Sequelize(
     },
     define: {
       timestamps: true,
-      underscored: true
+      underscored: false
     }
   }
 );

backend/env.example

@@ -6,8 +6,8 @@ NODE_ENV=development
 DB_HOST=localhost
 DB_PORT=5432
 DB_NAME=courseworx
-DB_USER=postgres
-DB_PASSWORD=your_password
+DB_USER=mabdalla
+DB_PASSWORD=7ouDa-123q
 
 # JWT Configuration
 JWT_SECRET=your_jwt_secret_key_here

backend/models/Assignment.js

@@ -11,7 +11,7 @@ const Assignment = sequelize.define('Assignment', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'users',
+      model: 'Users',
       key: 'id'
     }
   },
@@ -19,7 +19,7 @@ const Assignment = sequelize.define('Assignment', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'courses',
+      model: 'Courses',
       key: 'id'
     }
   },

backend/models/Attendance.js

@@ -11,7 +11,7 @@ const Attendance = sequelize.define('Attendance', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'users',
+      model: 'Users',
       key: 'id'
     }
   },
@@ -19,7 +19,7 @@ const Attendance = sequelize.define('Attendance', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'courses',
+      model: 'Courses',
       key: 'id'
     }
   },

backend/models/Course.js

@@ -11,7 +11,7 @@ const Course = sequelize.define('Course', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'users',
+      model: 'Users',
       key: 'id'
     }
   },

backend/models/Enrollment.js

@@ -11,7 +11,7 @@ const Enrollment = sequelize.define('Enrollment', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'users',
+      model: 'Users',
       key: 'id'
     }
   },
@@ -19,7 +19,7 @@ const Enrollment = sequelize.define('Enrollment', {
     type: DataTypes.UUID,
     allowNull: false,
     references: {
-      model: 'courses',
+      model: 'Courses',
       key: 'id'
     }
   },

backend/scripts/setup-database.js

@@ -1,4 +1,6 @@
 const { sequelize } = require('../config/database');
+// Import all models to ensure they are registered with Sequelize
+require('../models');
 const { User } = require('../models');
 require('dotenv').config();
 

backend/server.js

@@ -5,6 +5,8 @@ const path = require('path');
 require('dotenv').config();
 
 const { sequelize } = require('./config/database');
+// Import models to ensure they are registered with Sequelize
+require('./models');
 const authRoutes = require('./routes/auth');
 const userRoutes = require('./routes/users');
 const courseRoutes = require('./routes/courses');