split db and forms classes into their own files

db.py

@@ -0,0 +1,33 @@
+from flask_sqlalchemy import SQLAlchemy
+
+db = SQLAlchemy()
+
+class Period(db.Model):
+    period = db.Column(db.Integer, primary_key=True)
+    periodTime = db.Column(db.Time)
+    weekendSchedule = db.Column(db.Boolean)
+
+    def __repr__(self):
+        return f'<Period "{self.period}">'
+
+class Task(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(100))
+    description = db.Column(db.Text)
+    is_completed = db.Column(db.Boolean)
+    created_timestamp = db.Column(db.Integer)
+    due_timestamp = db.Column(db.Integer)
+
+    def __repr__(self):
+        return f'<Task "{self.title}">'
+
+class Event(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    scheduled_date = db.Column(db.String(100))
+    period = db.relationship(Period, backref='events')
+    tasks = db.relationship(Task, backref='events')
+    period_num = db.Column(db.Integer, db.ForeignKey('period.period'))
+    task_id = db.Column(db.Integer, db.ForeignKey('task.id'))
+
+    def __repr__(self):
+        return f'<Event "{self.id}">'