add: auto link feature

db/models/Markdown.py

@@ -1,6 +1,6 @@
 import uuid
 
-from sqlalchemy import Column, Text, Integer, String, DateTime, ForeignKey, Float, text
+from sqlalchemy import Column, Text, Integer, String, DateTime, ForeignKey, Float, text, UniqueConstraint
 from db.models import Base
 import datetime
 
@@ -12,7 +12,7 @@ class Markdown(Base):
     created_at = Column(DateTime, default=datetime.datetime.utcnow)
     path_id = Column(Integer, ForeignKey('path.id'), nullable=False)
     order = Column(String(36), default=lambda: str(uuid.uuid4()))
-
+    shortcut = Column(String(36), default="")
     def to_dict(self):
         return {
             'id': self.id,
@@ -21,6 +21,7 @@ class Markdown(Base):
             'created_at': self.created_at,
             'path_id': self.path_id,
             'order': self.order,
+            'shortcut': self.shortcut,
         }
     __pay_load__ = {
         'dev': [