Add Flask-CORS and SocketIO for real-time updates, refactor database handling to use a temporary Flask app; improve error handling with @app.errorhandler decorators.

models.py

@@ -6,6 +6,8 @@ from flask_login import UserMixin
 from datetime import datetime
 from werkzeug.security import generate_password_hash, check_password_hash
 from enum import Enum
+import uuid as uuid_pkg
+import os
 
 db = SQLAlchemy()
 
@@ -43,30 +45,28 @@ user_thought_bookmark = db.Table('user_thought_bookmark',
     db.Column('created_at', db.DateTime, default=datetime.utcnow)
 )
 
-class User(UserMixin, db.Model):
+class User(db.Model, UserMixin):
     id = db.Column(db.Integer, primary_key=True)
     username = db.Column(db.String(80), unique=True, nullable=False)
     email = db.Column(db.String(120), unique=True, nullable=False)
-    password_hash = db.Column(db.String(128))
-    is_admin = db.Column(db.Boolean, default=False)
+    password = db.Column(db.String(512), nullable=False)
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
-    last_login = db.Column(db.DateTime)
-    avatar = db.Column(db.String(200))
-    bio = db.Column(db.Text)
+    is_active = db.Column(db.Boolean, default=True)
+    role = db.Column(db.String(20), default="user")  # 'user', 'admin', 'moderator'
     
-    # Beziehungen
-    thoughts = db.relationship('Thought', backref='author', lazy=True)
-    comments = db.relationship('Comment', backref='author', lazy=True)
-    user_mindmaps = db.relationship('UserMindmap', backref='user', lazy=True)
-    mindmap_notes = db.relationship('MindmapNote', backref='user', lazy=True)
-    bookmarked_thoughts = db.relationship('Thought', secondary=user_thought_bookmark, 
-                                         backref=db.backref('bookmarked_by', lazy='dynamic'))
+    # Relationships
+    threads = db.relationship('Thread', backref='creator', lazy=True)
+    messages = db.relationship('Message', backref='author', lazy=True)
+    projects = db.relationship('Project', backref='owner', lazy=True)
     
+    def __repr__(self):
+        return f'<User {self.username}>'
+
     def set_password(self, password):
-        self.password_hash = generate_password_hash(password)
+        self.password = generate_password_hash(password)
         
     def check_password(self, password):
-        return check_password_hash(self.password_hash, password)
+        return check_password_hash(self.password, password)
 
 class Category(db.Model):
     """Wissenschaftliche Kategorien für die Gliederung der öffentlichen Mindmap"""
@@ -81,6 +81,9 @@ class Category(db.Model):
     children = db.relationship('Category', backref=db.backref('parent', remote_side=[id]))
     nodes = db.relationship('MindMapNode', backref='category', lazy=True)
 
+    def __repr__(self):
+        return f'<Category {self.name}>'
+
 class MindMapNode(db.Model):
     """Öffentliche Mindmap-Knoten, die für alle Benutzer sichtbar sind"""
     id = db.Column(db.Integer, primary_key=True)
@@ -92,7 +95,9 @@ class MindMapNode(db.Model):
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
     created_by_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=True)
     category_id = db.Column(db.Integer, db.ForeignKey('category.id'), nullable=True)
-    
+
+    __table_args__ = {'extend_existing': True}
+
     # Beziehungen für Baumstruktur (mehrere Eltern möglich)
     parents = db.relationship(
         'MindMapNode', 
@@ -111,6 +116,20 @@ class MindMapNode(db.Model):
     # Beziehung zum Ersteller
     created_by = db.relationship('User', backref='created_nodes')
 
+    def __repr__(self):
+        return f'<MindMapNode {self.name}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'description': self.description,
+            'color_code': self.color_code,
+            'icon': self.icon,
+            'category_id': self.category_id,
+            'created_at': self.created_at.isoformat() if self.created_at else None
+        }
+
 class UserMindmap(db.Model):
     """Benutzerspezifische Mindmap, die vom Benutzer personalisierbar ist"""
     id = db.Column(db.Integer, primary_key=True)
@@ -227,4 +246,63 @@ class Comment(db.Model):
     thought_id = db.Column(db.Integer, db.ForeignKey('thought.id'), nullable=False)
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
-    last_modified = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow) 
+    last_modified = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow) 
+
+# Thread model
+class Thread(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(200), nullable=False)
+    description = db.Column(db.Text)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    
+    # Relationships
+    messages = db.relationship('Message', backref='thread', lazy=True, cascade="all, delete-orphan")
+    
+    def __repr__(self):
+        return f'<Thread {self.title}>'
+
+# Message model
+class Message(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    content = db.Column(db.Text, nullable=False)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    thread_id = db.Column(db.Integer, db.ForeignKey('thread.id'), nullable=False)
+    role = db.Column(db.String(20), default="user")  # 'user', 'assistant', 'system'
+    
+    def __repr__(self):
+        return f'<Message {self.id} by {self.user_id}>'
+
+# Project model
+class Project(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(150), nullable=False)
+    description = db.Column(db.Text)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    category_id = db.Column(db.Integer, db.ForeignKey('category.id'))
+    
+    # Relationships
+    documents = db.relationship('Document', backref='project', lazy=True, cascade="all, delete-orphan")
+    
+    def __repr__(self):
+        return f'<Project {self.title}>'
+
+# Document model
+class Document(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(150), nullable=False)
+    content = db.Column(db.Text)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    project_id = db.Column(db.Integer, db.ForeignKey('project.id'), nullable=False)
+    filename = db.Column(db.String(150), nullable=True)
+    file_path = db.Column(db.String(300), nullable=True)
+    file_type = db.Column(db.String(50), nullable=True)
+    file_size = db.Column(db.Integer, nullable=True)
+    
+    def __repr__(self):
+        return f'<Document {self.title}>'