finished backend upgrades to allow multiple courses

app/models.py

@@ -5,7 +5,7 @@ from typing import List, Optional
 
 import pytz
 from flask_sqlalchemy import SQLAlchemy
-from sqlalchemy import Boolean, Column, DateTime, String, TypeDecorator, ForeignKey
+from sqlalchemy import Boolean, Column, DateTime, String, TypeDecorator, ForeignKey, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 db : SQLAlchemy = SQLAlchemy()
 
@@ -61,10 +61,15 @@ class Password(db.Model):
 class Deck(db.Model):
     __tablename__ = "deck"
 
+    __table_args__ = (
+        UniqueConstraint('course_id', 'deck', name='_course_deck_uc'),
+    )
+
     id : Mapped[int] = mapped_column(primary_key=True) 
     name : Mapped[str] = mapped_column(String(60), unique=True, nullable=False)
-    deck : Mapped[str] = mapped_column(String(60), unique=True, nullable=False)
+    deck : Mapped[str] = mapped_column(String(60), nullable=False)
     description : Mapped[str] = mapped_column(String(60))
+    index_file: Mapped[str] = mapped_column(String(40), nullable=False)
 
     passwords : Mapped[List[Password]] = relationship("Password", secondary=deck_password, back_populates='decks')
     tokens : Mapped[List[Token]] = relationship("Token", secondary=deck_token, back_populates='decks')
@@ -72,14 +77,15 @@ class Deck(db.Model):
     course: Mapped['Course'] = relationship("Course", back_populates='decks')
 
 
-    def __init__(self, name: str, deck: str, course: Course, description: str = "") -> None:
+    def __init__(self, name: str, deck: str, course: Course, description: str = "", index_file: str = "index.html") -> None:
         self.name = name
         self.deck = deck
         self.description = description
         self.course = course
+        self.index_file = index_file
 
     def __repr__(self) -> str:
-        return f"<Deck(name={self.name}, deck={self.deck}, course={self.course})>"
+        return f"<Deck(name={self.name}, deck={self.deck}, course={self.course}, index={self.index_file})>"
 
 class Token(db.Model):
     __tablename__ = "token"
@@ -101,11 +107,13 @@ class Token(db.Model):
 class Course(db.Model):
     __tablename__ = "course"
     id : Mapped[int] = mapped_column(primary_key=True) 
+    folder: Mapped[str] = mapped_column(String(20), unique=True, nullable=False)
     name: Mapped[str] = mapped_column(String(60), unique=True, nullable=False)
     decks: Mapped[List['Deck']] = relationship(back_populates='course') 
 
-    def __init__(self, name: str) -> None:
+    def __init__(self, name: str, folder: str) -> None:
         self.name = name
+        self.folder = folder
 
     def __repr__(self) -> str:
         return f"<Course(id={self.id}, name={self.name})>"