batman

app/models/__init__.py

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+# Models package initialization 

app/models/document.py

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+from app import db
+from datetime import datetime
+from flask import url_for
+import json
+
+# Association table for document-tag many-to-many relationship
+document_tags = db.Table('document_tags',
+    db.Column('document_id', db.Integer, db.ForeignKey('document.id'), primary_key=True),
+    db.Column('tag_id', db.Integer, db.ForeignKey('tag.id'), primary_key=True)
+)
+
+class Document(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(200), nullable=False)
+    content = db.Column(db.Text, nullable=False, default='')
+    created_date = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_date = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    category_id = db.Column(db.Integer, db.ForeignKey('category.id'))
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    tags = db.relationship('Tag', secondary=document_tags, backref=db.backref('documents', lazy='dynamic'))
+    
+    def __repr__(self):
+        return f'<Document {self.title}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'title': self.title,
+            'content': self.content,
+            'created_date': self.created_date.isoformat(),
+            'updated_date': self.updated_date.isoformat(),
+            'category_id': self.category_id,
+            'user_id': self.user_id,
+            'tags': [tag.name for tag in self.tags]
+        }
+
+class Category(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(100), nullable=False)
+    icon = db.Column(db.String(100), default='mdi-folder-outline')  # Material Design Icons
+    description = db.Column(db.String(200))
+    parent_id = db.Column(db.Integer, db.ForeignKey('category.id'))
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    is_root = db.Column(db.Boolean, default=False)
+    documents = db.relationship('Document', backref='category', lazy='dynamic')
+    children = db.relationship('Category', backref=db.backref('parent', remote_side=[id]), lazy='dynamic')
+    
+    def __repr__(self):
+        return f'<Category {self.name}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'icon': self.icon,
+            'description': self.description,
+            'parent_id': self.parent_id,
+            'user_id': self.user_id,
+            'is_root': self.is_root,
+            'children': [child.to_dict() for child in self.children],
+            'documents': [doc.id for doc in self.documents]
+        }
+
+class Tag(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(50), nullable=False)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    color = db.Column(db.String(20), default='#50fa7b')
+    
+    __table_args__ = (
+        db.UniqueConstraint('name', 'user_id', name='_tag_user_uc'),
+    )
+    
+    def __repr__(self):
+        return f'<Tag {self.name}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'user_id': self.user_id,
+            'color': self.color,
+            'document_count': self.documents.count()
+        } 

app/models/user.py

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+from app import db, login_manager
+from flask_login import UserMixin
+from werkzeug.security import generate_password_hash, check_password_hash
+from datetime import datetime
+
+class User(UserMixin, db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(64), index=True, unique=True, nullable=False)
+    password_hash = db.Column(db.String(128), nullable=False)
+    created_date = db.Column(db.DateTime, default=datetime.utcnow)
+    theme_color = db.Column(db.String(20), default='#50fa7b')  # Default green color
+    documents = db.relationship('Document', backref='author', lazy='dynamic')
+    categories = db.relationship('Category', backref='owner', lazy='dynamic')
+    
+    def __repr__(self):
+        return f'<User {self.username}>'
+    
+    def set_password(self, password):
+        self.password_hash = generate_password_hash(password)
+    
+    def check_password(self, password):
+        return check_password_hash(self.password_hash, password)
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'username': self.username,
+            'created_date': self.created_date.isoformat(),
+            'theme_color': self.theme_color
+        }
+
+@login_manager.user_loader
+def load_user(id):
+    return User.query.get(int(id))