backend/app/models.py

@@ -1,17 +1,18 @@
 from app import db
+import sqlalchemy as sa
 from flask_login import UserMixin
 from datetime import datetime
 from werkzeug.security import generate_password_hash, check_password_hash
 
 
 class User(UserMixin, db.Model):
-    id = db.Column(db.Integer, primary_key=True)
+    id = sa.Column(sa.Integer, primary_key=True)
-    username = db.Column(db.String(64), index=True, unique=True)
+    username = sa.Column(sa.String(64), index=True, unique=True)
-    role = db.Column(db.String(32), index=True)
+    role = sa.Column(sa.String(32), index=True)
-    email = db.Column(db.String(120), index=True, unique=True)
+    email = sa.Column(sa.String(120), index=True, unique=True)
-    password_hash = db.Column(db.String(128))
+    password_hash = sa.Column(sa.String(128))
-    last_seen = db.Column(db.DateTime, default=datetime.utcnow)
+    last_seen = sa.Column(sa.DateTime, default=datetime.utcnow)
-    token = db.Column(db.String(32), index=True, unique=True)
+    token = sa.Column(sa.String(32), index=True, unique=True)
 
     def __repr__(self):
         return f"<User {self.username}>"
@@ -35,3 +36,25 @@ class User(UserMixin, db.Model):
                 setattr(self, field, data[field])
         if new_user and "password" in data:
             self.set_password(data["password"])
+
+
+class Course(db.Model):
+    id = sa.Column(sa.Integer, primary_key=True)
+    name = sa.Column(sa.String(128), index=True)
+    description = sa.Column(sa.Text, index=True)
+    instructor = sa.Column(sa.ForeignKey(User.id), index=True)
+    created_at = sa.Column(sa.DateTime)
+
+    def from_dict(self, data):
+        for field in ["name", "description", "instructor"]:
+            if field in data:
+                setattr(self, field, data[field])
+
+        if not self.created_at:
+            self.created_at = datetime.now()
+
+    def to_dict(self):
+        d = {}
+        for f in ["id", "name", "description", "instructor", "created_at"]:
+            d[f] = getattr(self, f)
+        return d

backend/app/routes.py

@@ -5,7 +5,7 @@ from app.errors import error_response
 from flask_login import current_user
 
 from app import login, db
-from app.models import User
+from app.models import Course, User
 
 
 @login.user_loader
@@ -13,6 +13,13 @@ def load_user(user_id):
     return User.query.get(user_id)
 
 
+def check_data(data, required_fields):
+    for f in required_fields:
+        if f not in data:
+            return f
+    return None
+
+
 @bp.route("/login", methods=["POST"])
 def login_route():
     data = request.get_json()
@@ -46,10 +53,8 @@ def logout_route():
 @bp.route("/register", methods=["POST"])
 def register():
     data = request.get_json()
-
     required_fields = ["role", "username", "email", "password", "password2"]
-    for f in required_fields:
+    if f := check_data(data, required_fields):
-        if f not in data:
         return error_response(400, f"Must supply {f}")
 
     if User.query.filter_by(username=data["username"]).first():
@@ -65,3 +70,28 @@ def register():
 
     resp = jsonify(u.to_dict())
     return resp
+
+
+@bp.route("/course", methods=["POST"])
+def create_course():
+    data = request.get_json()
+
+    required_fields = ["name", "description", "instructor"]
+
+    if f := check_data(data, required_fields):
+        return error_response(400, f"Must supply {f}")
+
+    u = User.query.get(data["instructor"])
+    if not u:
+        return error_response(400, f"User with id {data['instructor']} does not exist")
+
+    if u.role != "instructor":
+        return error_response(400, "User is not instructor")
+
+    c = Course()
+    c.from_dict(data)
+    db.session.add(c)
+    db.session.commit()
+
+    return jsonify(c.to_dict())
+

backend/main.py

@@ -1,8 +1,9 @@
 import dotenv
+
 dotenv.load_dotenv()
 
 from app import create_app, db
-from app.models import User
+from app.models import Course, User
 from flask_cors import CORS
 
 app = create_app()
@@ -11,4 +12,4 @@ CORS(app, supports_credentials=True, resources={r"/.*": {"origins": r".*localhos
 
 @app.shell_context_processor
 def make_shell_context():
-    return {"db": db, "User": User}
+    return {"db": db, "User": User, "Course": Course}

backend/migrations/versions/471b4225837e_.py

@@ -0,0 +1,46 @@
+"""Create course model
+
+Revision ID: 471b4225837e
+Revises: 8e48199f1417
+Create Date: 2023-04-06 14:53:43.061616
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '471b4225837e'
+down_revision = '8e48199f1417'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('course',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=128), nullable=True),
+    sa.Column('description', sa.Text(), nullable=True),
+    sa.Column('instructor', sa.Integer(), nullable=True),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['instructor'], ['user.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('course', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_course_description'), ['description'], unique=False)
+        batch_op.create_index(batch_op.f('ix_course_instructor'), ['instructor'], unique=False)
+        batch_op.create_index(batch_op.f('ix_course_name'), ['name'], unique=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('course', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_course_name'))
+        batch_op.drop_index(batch_op.f('ix_course_instructor'))
+        batch_op.drop_index(batch_op.f('ix_course_description'))
+
+    op.drop_table('course')
+    # ### end Alembic commands ###

backend/migrations/versions/7736bc740f9b_.py

@@ -1,4 +1,4 @@
-"""empty message
+"""Create user model
 
 Revision ID: 7736bc740f9b
 Revises: 

backend/migrations/versions/8e48199f1417_.py

@@ -1,4 +1,4 @@
-"""empty message
+"""Add user role, remove about_me
 
 Revision ID: 8e48199f1417
 Revises: 7736bc740f9b