add code

models.py

@@ -0,0 +1,56 @@
+from datetime import datetime
+from extensions import db
+import bleach
+
+ALLOWED_TAGS = [
+    'a', 'abbr', 'acronym', 'b', 'blockquote', 'code', 'em', 'i', 'li', 'ol',
+    'strong', 'ul', 'p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'div', 'span',
+    'br', 'table', 'tr', 'td', 'th', 'thead', 'tbody', 'img'
+]
+
+ALLOWED_ATTRIBUTES = {
+    '*': ['class'],
+    'a': ['href', 'title'],
+    'img': ['src', 'alt', 'width', 'height'],
+}
+
+class Asset(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(100), nullable=False)
+    description = db.Column(db.Text)
+    featured_image = db.Column(db.String(200))
+    original_featured_image = db.Column(db.String(200))
+    license_key = db.Column(db.String(255))
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    files = db.relationship('AssetFile', backref='asset', lazy=True)
+
+    def set_description(self, description):
+        """Sanitize HTML content before saving"""
+        if description:
+            clean_html = bleach.clean(
+                description,
+                tags=ALLOWED_TAGS,
+                attributes=ALLOWED_ATTRIBUTES,
+                strip=True
+            )
+            self.description = clean_html
+        else:
+            self.description = None
+
+    @property
+    def safe_description(self):
+        """Return sanitized HTML content"""
+        if self.description:
+            return bleach.clean(
+                self.description,
+                tags=ALLOWED_TAGS,
+                attributes=ALLOWED_ATTRIBUTES,
+                strip=True
+            )
+        return ''
+
+class AssetFile(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    filename = db.Column(db.String(200), nullable=False)
+    original_filename = db.Column(db.String(200))
+    asset_id = db.Column(db.Integer, db.ForeignKey('asset.id'), nullable=False)