training fix. add global settings

backend/models/TrainingProject.py

@@ -1,28 +1,36 @@
-from database.database import db
-
-class TrainingProject(db.Model):
-    __tablename__ = 'training_project'
-    
-    project_id = db.Column(db.Integer, primary_key=True, unique=True, autoincrement=True)
-    title = db.Column(db.String(255), nullable=False)
-    description = db.Column(db.String(500))
-    classes = db.Column(db.JSON, nullable=False)
-    project_image = db.Column(db.LargeBinary)
-    project_image_type = db.Column(db.String(100))
-    
-    def to_dict(self):
-        result = {
-            'project_id': self.project_id,
-            'title': self.title,
-            'description': self.description,
-            'classes': self.classes,
-            'project_image_type': self.project_image_type
-        }
-        if self.project_image:
-            import base64
-            base64_data = base64.b64encode(self.project_image).decode('utf-8')
-            mime_type = self.project_image_type or 'image/png'
-            result['project_image'] = f'data:{mime_type};base64,{base64_data}'
-        else:
-            result['project_image'] = None
-        return result
+from database.database import db
+
+class TrainingProject(db.Model):
+    __tablename__ = 'training_project'
+    
+    project_id = db.Column(db.Integer, primary_key=True, unique=True, autoincrement=True)
+    title = db.Column(db.String(255), nullable=False)
+    description = db.Column(db.String(500))
+    project_image = db.Column(db.LargeBinary)
+    project_image_type = db.Column(db.String(100))
+    
+    # Relationship to classes (3NF)
+    classes_relation = db.relationship('ProjectClass', backref='project', lazy=True, cascade='all, delete-orphan')
+    
+    def to_dict(self, include_classes=True):
+        result = {
+            'project_id': self.project_id,
+            'title': self.title,
+            'description': self.description,
+            'project_image_type': self.project_image_type
+        }
+        
+        # Include classes as array for backwards compatibility
+        if include_classes:
+            from models.ProjectClass import ProjectClass
+            classes = ProjectClass.query.filter_by(project_id=self.project_id).order_by(ProjectClass.display_order).all()
+            result['classes'] = [c.class_name for c in classes]
+        
+        if self.project_image:
+            import base64
+            base64_data = base64.b64encode(self.project_image).decode('utf-8')
+            mime_type = self.project_image_type or 'image/png'
+            result['project_image'] = f'data:{mime_type};base64,{base64_data}'
+        else:
+            result['project_image'] = None
+        return result