Fix dependency installation error and fix linting issues

alembic.ini

@@ -0,0 +1,110 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python-dateutil library that can be
+# installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to migrations/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:migrations/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = sqlite:////app/storage/db/db.sqlite
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

app/api/v1/api.py

@@ -0,0 +1,12 @@
+from fastapi import APIRouter
+
+from app.api.v1.endpoints import login, users, roles, students, teachers, courses, enrollments
+
+api_router = APIRouter()
+api_router.include_router(login.router, tags=["login"])
+api_router.include_router(users.router, prefix="/users", tags=["users"])
+api_router.include_router(roles.router, prefix="/roles", tags=["roles"])
+api_router.include_router(students.router, prefix="/students", tags=["students"])
+api_router.include_router(teachers.router, prefix="/teachers", tags=["teachers"])
+api_router.include_router(courses.router, prefix="/courses", tags=["courses"])
+api_router.include_router(enrollments.router, prefix="/enrollments", tags=["enrollments"])

app/api/v1/deps.py

@@ -0,0 +1,62 @@
+from typing import List
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import jwt
+from pydantic import ValidationError
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.core.config import settings
+from app.db.session import get_db
+
+oauth2_scheme = OAuth2PasswordBearer(
+    tokenUrl=f"{settings.API_V1_STR}/login/access-token"
+)
+
+
+def get_current_user(
+    db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
+) -> models.User:
+    try:
+        payload = jwt.decode(
+            token, settings.JWT_SECRET_KEY, algorithms=[settings.JWT_ALGORITHM]
+        )
+        token_data = schemas.token.TokenPayload(**payload)
+    except (jwt.JWTError, ValidationError):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Could not validate credentials",
+        )
+    user = crud.user.get(db, id=token_data.sub)
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    return user
+
+
+def get_current_active_user(
+    current_user: models.User = Depends(get_current_user),
+) -> models.User:
+    if not crud.user.is_active(current_user):
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user
+
+
+def check_role(
+    allowed_roles: List[str], user: models.User = Depends(get_current_active_user), db: Session = Depends(get_db)
+) -> models.User:
+    role = db.query(models.Role).filter(models.Role.id == user.role_id).first()
+    if not role or role.name not in allowed_roles:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail=f"Operation not permitted. Required roles: {', '.join(allowed_roles)}",
+        )
+    return user
+
+
+def get_admin_user(db: Session = Depends(get_db), user: models.User = Depends(get_current_active_user)) -> models.User:
+    return check_role(["admin"], user, db)
+
+
+def get_teacher_user(db: Session = Depends(get_db), user: models.User = Depends(get_current_active_user)) -> models.User:
+    return check_role(["admin", "teacher"], user, db)

app/api/v1/endpoints/login.py

@@ -0,0 +1,41 @@
+from typing import Any
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordRequestForm
+from sqlalchemy.orm import Session
+
+from app import crud
+from app.api.v1.deps import get_db
+from app.core.security import create_access_token
+from app.models.role import Role
+from app.schemas.token import Token
+
+router = APIRouter()
+
+
+@router.post("/login/access-token", response_model=Token)
+def login_access_token(
+    db: Session = Depends(get_db), form_data: OAuth2PasswordRequestForm = Depends()
+) -> Any:
+    """
+    OAuth2 compatible token login, get an access token for future requests
+    """
+    user = crud.user.authenticate(
+        db, username=form_data.username, password=form_data.password
+    )
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+        )
+    if not crud.user.is_active(user):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail="Inactive user"
+        )
+    
+    # Get the role name for the user
+    role_obj = db.query(Role).filter(Role.id == user.role_id).first()
+    role_name = role_obj.name if role_obj else "user"
+    
+    access_token = create_access_token(user.id, role=role_name)
+    return {"access_token": access_token, "token_type": "bearer"}

app/api/v1/endpoints/roles.py

@@ -0,0 +1,122 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.api.v1 import deps
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.Role])
+def read_roles(
+    db: Session = Depends(deps.get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Retrieve roles.
+    """
+    roles = crud.role.get_multi(db, skip=skip, limit=limit)
+    return roles
+
+
+@router.post("/", response_model=schemas.Role)
+def create_role(
+    *,
+    db: Session = Depends(deps.get_db),
+    role_in: schemas.RoleCreate,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Create new role.
+    """
+    role = crud.role.get_by_name(db, name=role_in.name)
+    if role:
+        raise HTTPException(
+            status_code=400,
+            detail="The role with this name already exists in the system.",
+        )
+    role = crud.role.create(db, obj_in=role_in)
+    return role
+
+
+@router.get("/{role_id}", response_model=schemas.Role)
+def read_role(
+    *,
+    db: Session = Depends(deps.get_db),
+    role_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get role by ID.
+    """
+    role = crud.role.get(db, id=role_id)
+    if not role:
+        raise HTTPException(
+            status_code=404,
+            detail="The role with this ID does not exist in the system",
+        )
+    return role
+
+
+@router.put("/{role_id}", response_model=schemas.Role)
+def update_role(
+    *,
+    db: Session = Depends(deps.get_db),
+    role_id: int,
+    role_in: schemas.RoleUpdate,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Update a role.
+    """
+    role = crud.role.get(db, id=role_id)
+    if not role:
+        raise HTTPException(
+            status_code=404,
+            detail="The role with this ID does not exist in the system",
+        )
+    
+    # Check if trying to update to an existing name
+    if role_in.name and role_in.name != role.name:
+        existing_role = crud.role.get_by_name(db, name=role_in.name)
+        if existing_role:
+            raise HTTPException(
+                status_code=400,
+                detail="The role with this name already exists in the system.",
+            )
+    
+    role = crud.role.update(db, db_obj=role, obj_in=role_in)
+    return role
+
+
+@router.delete("/{role_id}", status_code=status.HTTP_204_NO_CONTENT, response_model=None)
+def delete_role(
+    *,
+    db: Session = Depends(deps.get_db),
+    role_id: int,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Delete a role.
+    """
+    role = crud.role.get(db, id=role_id)
+    if not role:
+        raise HTTPException(
+            status_code=404,
+            detail="The role with this ID does not exist in the system",
+        )
+    
+    # Check if there are users with this role
+    users_with_role = db.query(models.User).filter(models.User.role_id == role_id).count()
+    if users_with_role > 0:
+        raise HTTPException(
+            status_code=400,
+            detail=f"Cannot delete role with ID {role_id}. There are {users_with_role} users with this role.",
+        )
+    
+    crud.role.remove(db, id=role_id)
+    return None

app/api/v1/endpoints/users.py

@@ -0,0 +1,166 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Body, Depends, HTTPException, status
+from fastapi.encoders import jsonable_encoder
+from pydantic import EmailStr
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.api.v1 import deps
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.User])
+def read_users(
+    db: Session = Depends(deps.get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Retrieve users.
+    """
+    users = crud.user.get_multi(db, skip=skip, limit=limit)
+    return users
+
+
+@router.post("/", response_model=schemas.User)
+def create_user(
+    *,
+    db: Session = Depends(deps.get_db),
+    user_in: schemas.UserCreate,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Create new user.
+    """
+    user = crud.user.get_by_email(db, email=user_in.email)
+    if user:
+        raise HTTPException(
+            status_code=400,
+            detail="The user with this email already exists in the system.",
+        )
+    
+    user = crud.user.get_by_username(db, username=user_in.username)
+    if user:
+        raise HTTPException(
+            status_code=400,
+            detail="The user with this username already exists in the system.",
+        )
+    
+    user = crud.user.create(db, obj_in=user_in)
+    return user
+
+
+@router.put("/me", response_model=schemas.User)
+def update_user_me(
+    *,
+    db: Session = Depends(deps.get_db),
+    password: str = Body(None),
+    first_name: str = Body(None),
+    last_name: str = Body(None),
+    email: EmailStr = Body(None),
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update own user.
+    """
+    current_user_data = jsonable_encoder(current_user)
+    user_in = schemas.UserUpdate(**current_user_data)
+    if password is not None:
+        user_in.password = password
+    if first_name is not None:
+        user_in.first_name = first_name
+    if last_name is not None:
+        user_in.last_name = last_name
+    if email is not None:
+        user_in.email = email
+    user = crud.user.update(db, db_obj=current_user, obj_in=user_in)
+    return user
+
+
+@router.get("/me", response_model=schemas.User)
+def read_user_me(
+    db: Session = Depends(deps.get_db),
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get current user.
+    """
+    return current_user
+
+
+@router.get("/{user_id}", response_model=schemas.User)
+def read_user_by_id(
+    user_id: int,
+    current_user: models.User = Depends(deps.get_current_active_user),
+    db: Session = Depends(deps.get_db),
+) -> Any:
+    """
+    Get a specific user by id.
+    """
+    # Only admins can get user details except their own
+    role = db.query(models.Role).filter(models.Role.id == current_user.role_id).first()
+    if role.name != "admin" and current_user.id != user_id:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="The user doesn't have enough privileges",
+        )
+    
+    user = crud.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this id does not exist in the system",
+        )
+    return user
+
+
+@router.put("/{user_id}", response_model=schemas.User)
+def update_user(
+    *,
+    db: Session = Depends(deps.get_db),
+    user_id: int,
+    user_in: schemas.UserUpdate,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Update a user.
+    """
+    user = crud.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this id does not exist in the system",
+        )
+    user = crud.user.update(db, db_obj=user, obj_in=user_in)
+    return user
+
+
+@router.delete("/{user_id}", status_code=status.HTTP_204_NO_CONTENT, response_model=None)
+def delete_user(
+    *,
+    db: Session = Depends(deps.get_db),
+    user_id: int,
+    current_user: models.User = Depends(deps.get_admin_user),
+) -> Any:
+    """
+    Delete a user.
+    """
+    user = crud.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this id does not exist in the system",
+        )
+    
+    # Prevent deletion of the current user
+    if user.id == current_user.id:
+        raise HTTPException(
+            status_code=400,
+            detail="Users cannot delete themselves",
+        )
+    
+    crud.user.remove(db, id=user_id)
+    return None

app/core/config.py

@@ -0,0 +1,37 @@
+import os
+import secrets
+from typing import List, Union
+
+from pydantic import AnyHttpUrl, field_validator
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    API_V1_STR: str = "/api/v1"
+    SECRET_KEY: str = os.environ.get("SECRET_KEY", secrets.token_urlsafe(32))
+    # 60 minutes * 24 hours * 8 days = 8 days
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8
+    
+    # CORS configuration
+    BACKEND_CORS_ORIGINS: List[AnyHttpUrl] = []
+
+    @field_validator("BACKEND_CORS_ORIGINS", mode="before")
+    def assemble_cors_origins(cls, v: Union[str, List[str]]) -> Union[List[str], str]:
+        if isinstance(v, str) and not v.startswith("["):
+            return [i.strip() for i in v.split(",")]
+        elif isinstance(v, (list, str)):
+            return v
+        raise ValueError(v)
+
+    PROJECT_NAME: str = "Role-Based School Management System"
+    
+    # Database configuration
+    SQLALCHEMY_DATABASE_URL: str = os.environ.get(
+        "DATABASE_URL", "sqlite:////app/storage/db/db.sqlite"
+    )
+
+    # JWT token configuration
+    JWT_SECRET_KEY: str = os.environ.get("JWT_SECRET_KEY", SECRET_KEY)
+    JWT_ALGORITHM: str = "HS256"
+
+settings = Settings()

app/core/security.py

@@ -0,0 +1,31 @@
+from datetime import datetime, timedelta
+from typing import Any, Union
+
+from jose import jwt
+from passlib.context import CryptContext
+
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def create_access_token(
+    subject: Union[str, Any], role: str, expires_delta: timedelta = None
+) -> str:
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(
+            minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
+        )
+    to_encode = {"exp": expire, "sub": str(subject), "role": role}
+    encoded_jwt = jwt.encode(to_encode, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM)
+    return encoded_jwt
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)

app/crud/__init__.py

@@ -0,0 +1,5 @@
+from app.crud.crud_user import user
+from app.crud.crud_role import role
+from app.crud.crud_student import student
+
+__all__ = ["user", "role", "student"]

app/crud/base.py

@@ -0,0 +1,66 @@
+from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union
+
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+
+from app.db.base_class import Base
+
+ModelType = TypeVar("ModelType", bound=Base)
+CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
+UpdateSchemaType = TypeVar("UpdateSchemaType", bound=BaseModel)
+
+
+class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
+    def __init__(self, model: Type[ModelType]):
+        """
+        CRUD object with default methods to Create, Read, Update, Delete (CRUD).
+
+        **Parameters**
+
+        * `model`: A SQLAlchemy model class
+        * `schema`: A Pydantic model (schema) class
+        """
+        self.model = model
+
+    def get(self, db: Session, id: Any) -> Optional[ModelType]:
+        return db.query(self.model).filter(self.model.id == id).first()
+
+    def get_multi(
+        self, db: Session, *, skip: int = 0, limit: int = 100
+    ) -> List[ModelType]:
+        return db.query(self.model).offset(skip).limit(limit).all()
+
+    def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
+        obj_in_data = jsonable_encoder(obj_in)
+        db_obj = self.model(**obj_in_data)
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self,
+        db: Session,
+        *,
+        db_obj: ModelType,
+        obj_in: Union[UpdateSchemaType, Dict[str, Any]]
+    ) -> ModelType:
+        obj_data = jsonable_encoder(db_obj)
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.dict(exclude_unset=True)
+        for field in obj_data:
+            if field in update_data:
+                setattr(db_obj, field, update_data[field])
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def remove(self, db: Session, *, id: int) -> ModelType:
+        obj = db.query(self.model).get(id)
+        db.delete(obj)
+        db.commit()
+        return obj

app/crud/crud_role.py

@@ -0,0 +1,15 @@
+from typing import Optional
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.role import Role
+from app.schemas.role import RoleCreate, RoleUpdate
+
+
+class CRUDRole(CRUDBase[Role, RoleCreate, RoleUpdate]):
+    def get_by_name(self, db: Session, *, name: str) -> Optional[Role]:
+        return db.query(Role).filter(Role.name == name).first()
+
+
+role = CRUDRole(Role)

app/crud/crud_student.py

@@ -0,0 +1,21 @@
+from typing import List, Optional
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.student import Student
+from app.schemas.student import StudentCreate, StudentUpdate
+
+
+class CRUDStudent(CRUDBase[Student, StudentCreate, StudentUpdate]):
+    def get_by_student_id(self, db: Session, *, student_id: str) -> Optional[Student]:
+        return db.query(Student).filter(Student.student_id == student_id).first()
+    
+    def get_by_user_id(self, db: Session, *, user_id: int) -> Optional[Student]:
+        return db.query(Student).filter(Student.user_id == user_id).first()
+    
+    def get_by_grade_level(self, db: Session, *, grade_level: str) -> List[Student]:
+        return db.query(Student).filter(Student.grade_level == grade_level).all()
+
+
+student = CRUDStudent(Student)

app/crud/crud_user.py

@@ -0,0 +1,58 @@
+from typing import Any, Dict, Optional, Union
+
+from sqlalchemy.orm import Session
+
+from app.core.security import get_password_hash, verify_password
+from app.crud.base import CRUDBase
+from app.models.user import User
+from app.schemas.user import UserCreate, UserUpdate
+
+
+class CRUDUser(CRUDBase[User, UserCreate, UserUpdate]):
+    def get_by_email(self, db: Session, *, email: str) -> Optional[User]:
+        return db.query(User).filter(User.email == email).first()
+
+    def get_by_username(self, db: Session, *, username: str) -> Optional[User]:
+        return db.query(User).filter(User.username == username).first()
+
+    def create(self, db: Session, *, obj_in: UserCreate) -> User:
+        db_obj = User(
+            email=obj_in.email,
+            username=obj_in.username,
+            hashed_password=get_password_hash(obj_in.password),
+            first_name=obj_in.first_name,
+            last_name=obj_in.last_name,
+            is_active=True,
+            role_id=obj_in.role_id,
+        )
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self, db: Session, *, db_obj: User, obj_in: Union[UserUpdate, Dict[str, Any]]
+    ) -> User:
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.dict(exclude_unset=True)
+        if update_data.get("password"):
+            hashed_password = get_password_hash(update_data["password"])
+            del update_data["password"]
+            update_data["hashed_password"] = hashed_password
+        return super().update(db, db_obj=db_obj, obj_in=update_data)
+
+    def authenticate(self, db: Session, *, username: str, password: str) -> Optional[User]:
+        user = self.get_by_username(db, username=username)
+        if not user:
+            return None
+        if not verify_password(password, user.hashed_password):
+            return None
+        return user
+
+    def is_active(self, user: User) -> bool:
+        return user.is_active
+
+
+user = CRUDUser(User)

app/db/base.py

@@ -0,0 +1 @@
+# Import all models here to ensure they are registered with SQLAlchemy

app/db/base_class.py

@@ -0,0 +1,13 @@
+from typing import Any
+from sqlalchemy.ext.declarative import declared_attr
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    id: Any
+    __name__: str
+    
+    # Generate __tablename__ automatically
+    @declared_attr
+    def __tablename__(cls) -> str:
+        return cls.__name__.lower()

app/db/session.py

@@ -0,0 +1,25 @@
+from pathlib import Path
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+
+# Ensure the database directory exists
+DB_DIR = Path("/app") / "storage" / "db"
+DB_DIR.mkdir(parents=True, exist_ok=True)
+
+SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/db.sqlite"
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+# Dependency to get DB session
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/models/class_enrollment.py

@@ -0,0 +1,24 @@
+from datetime import datetime
+from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Float
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+
+class ClassEnrollment(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    enrollment_date = Column(DateTime, default=datetime.utcnow)
+    grade = Column(Float, nullable=True)
+    semester = Column(String(20), nullable=False)
+    academic_year = Column(String(10), nullable=False)
+    
+    # Foreign keys
+    student_id = Column(Integer, ForeignKey("student.id"), nullable=False)
+    course_id = Column(Integer, ForeignKey("course.id"), nullable=False)
+    
+    # Relationships
+    student = relationship("Student", back_populates="enrollments")
+    course = relationship("Course", back_populates="enrollments")
+    
+    def __repr__(self):
+        return f"<ClassEnrollment {self.student_id}_{self.course_id}>"

app/models/course.py

@@ -0,0 +1,23 @@
+from sqlalchemy import Column, Integer, String, Text, ForeignKey, Boolean
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+
+class Course(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    course_code = Column(String(20), unique=True, index=True, nullable=False)
+    title = Column(String(100), nullable=False)
+    description = Column(Text, nullable=True)
+    credits = Column(Integer, default=0)
+    is_active = Column(Boolean, default=True)
+    
+    # Foreign keys
+    teacher_id = Column(Integer, ForeignKey("teacher.id"), nullable=True)
+    
+    # Relationships
+    teacher = relationship("Teacher", back_populates="courses")
+    enrollments = relationship("ClassEnrollment", back_populates="course")
+    
+    def __repr__(self):
+        return f"<Course {self.course_code}>"

app/models/role.py

@@ -0,0 +1,16 @@
+from sqlalchemy import Column, Integer, String, Text
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+
+class Role(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String(50), unique=True, index=True, nullable=False)
+    description = Column(Text, nullable=True)
+    
+    # Relationships
+    users = relationship("User", back_populates="role")
+    
+    def __repr__(self):
+        return f"<Role {self.name}>"

app/models/student.py

@@ -0,0 +1,23 @@
+from sqlalchemy import Column, Integer, String, Date, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+
+class Student(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    student_id = Column(String(20), unique=True, index=True, nullable=False)
+    date_of_birth = Column(Date, nullable=True)
+    address = Column(String(255), nullable=True)
+    phone_number = Column(String(20), nullable=True)
+    grade_level = Column(String(20), nullable=True)
+    
+    # Foreign keys
+    user_id = Column(Integer, ForeignKey("user.id"), unique=True, nullable=False)
+    
+    # Relationships
+    user = relationship("User", back_populates="student")
+    enrollments = relationship("ClassEnrollment", back_populates="student")
+    
+    def __repr__(self):
+        return f"<Student {self.student_id}>"

app/models/teacher.py

@@ -0,0 +1,24 @@
+from sqlalchemy import Column, Integer, String, Date, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+
+class Teacher(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    teacher_id = Column(String(20), unique=True, index=True, nullable=False)
+    date_of_birth = Column(Date, nullable=True)
+    address = Column(String(255), nullable=True)
+    phone_number = Column(String(20), nullable=True)
+    department = Column(String(50), nullable=True)
+    hire_date = Column(Date, nullable=True)
+    
+    # Foreign keys
+    user_id = Column(Integer, ForeignKey("user.id"), unique=True, nullable=False)
+    
+    # Relationships
+    user = relationship("User", back_populates="teacher")
+    courses = relationship("Course", back_populates="teacher")
+    
+    def __repr__(self):
+        return f"<Teacher {self.teacher_id}>"

app/models/user.py

@@ -0,0 +1,28 @@
+from datetime import datetime
+from sqlalchemy import Boolean, Column, Integer, String, DateTime, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+
+class User(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    email = Column(String(100), unique=True, index=True, nullable=False)
+    username = Column(String(50), unique=True, index=True, nullable=False)
+    first_name = Column(String(50), nullable=True)
+    last_name = Column(String(50), nullable=True)
+    hashed_password = Column(String(255), nullable=False)
+    is_active = Column(Boolean, default=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    # Foreign keys
+    role_id = Column(Integer, ForeignKey("role.id"), nullable=False)
+    
+    # Relationships
+    role = relationship("Role", back_populates="users")
+    student = relationship("Student", back_populates="user", uselist=False)
+    teacher = relationship("Teacher", back_populates="user", uselist=False)
+    
+    def __repr__(self):
+        return f"<User {self.username}>"

app/schemas/role.py

@@ -0,0 +1,30 @@
+from typing import Optional
+from pydantic import BaseModel
+
+
+# Shared properties
+class RoleBase(BaseModel):
+    name: Optional[str] = None
+    description: Optional[str] = None
+
+
+# Properties to receive via API on creation
+class RoleCreate(RoleBase):
+    name: str
+
+
+# Properties to receive via API on update
+class RoleUpdate(RoleBase):
+    pass
+
+
+class RoleInDBBase(RoleBase):
+    id: Optional[int] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class Role(RoleInDBBase):
+    pass

app/schemas/student.py

@@ -0,0 +1,47 @@
+from typing import Optional
+from datetime import date
+from pydantic import BaseModel
+
+# Import at the top to avoid circular imports
+from app.schemas.user import User as UserOut
+
+
+# Shared properties
+class StudentBase(BaseModel):
+    student_id: Optional[str] = None
+    date_of_birth: Optional[date] = None
+    address: Optional[str] = None
+    phone_number: Optional[str] = None
+    grade_level: Optional[str] = None
+    user_id: Optional[int] = None
+
+
+# Properties to receive via API on creation
+class StudentCreate(StudentBase):
+    student_id: str
+    user_id: int
+
+
+# Properties to receive via API on update
+class StudentUpdate(StudentBase):
+    pass
+
+
+class StudentInDBBase(StudentBase):
+    id: Optional[int] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class Student(StudentInDBBase):
+    pass
+
+
+# Student with User details
+class StudentWithUser(Student):
+    user: Optional[UserOut] = None
+
+# Update forward refs
+StudentWithUser.model_rebuild()

app/schemas/token.py

@@ -0,0 +1,12 @@
+from typing import Optional
+from pydantic import BaseModel
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenPayload(BaseModel):
+    sub: Optional[int] = None
+    role: Optional[str] = None

app/schemas/user.py

@@ -0,0 +1,42 @@
+from typing import Optional
+from pydantic import BaseModel, EmailStr
+
+
+# Shared properties
+class UserBase(BaseModel):
+    email: Optional[EmailStr] = None
+    username: Optional[str] = None
+    is_active: Optional[bool] = True
+    first_name: Optional[str] = None
+    last_name: Optional[str] = None
+    role_id: Optional[int] = None
+
+
+# Properties to receive via API on creation
+class UserCreate(UserBase):
+    email: EmailStr
+    username: str
+    password: str
+    role_id: int
+
+
+# Properties to receive via API on update
+class UserUpdate(UserBase):
+    password: Optional[str] = None
+
+
+class UserInDBBase(UserBase):
+    id: Optional[int] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class User(UserInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class UserInDB(UserInDBBase):
+    hashed_password: str

main.py

@@ -0,0 +1,36 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+import uvicorn
+
+from app.api.v1.api import api_router
+from app.core.config import settings
+
+app = FastAPI(
+    title=settings.PROJECT_NAME,
+    openapi_url="/openapi.json",
+    docs_url="/docs",
+    redoc_url="/redoc",
+)
+
+# Set all CORS enabled origins
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(api_router, prefix=settings.API_V1_STR)
+
+
+@app.get("/health", tags=["Health"])
+async def health_check():
+    """
+    Health check endpoint
+    """
+    return {"status": "healthy"}
+
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

migrations/README

@@ -0,0 +1 @@
+Generic single-database configuration with SQLite.

migrations/env.py

@@ -0,0 +1,87 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+from app.db.base import Base
+from app.core.config import settings
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Set the SQLAlchemy URL from our app config
+config.set_main_option("sqlalchemy.url", settings.SQLALCHEMY_DATABASE_URL)
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        is_sqlite = connection.dialect.name == 'sqlite'
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            render_as_batch=is_sqlite  # Key configuration for SQLite
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

@@ -0,0 +1,26 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

migrations/versions/001_initial_migration.py

@@ -0,0 +1,145 @@
+"""Initial migration
+
+Revision ID: 001
+Revises: 
+Create Date: 2023-10-01
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '001'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Create role table
+    op.create_table(
+        'role',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('name', sa.String(length=50), nullable=False),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_role_id'), 'role', ['id'], unique=False)
+    op.create_index(op.f('ix_role_name'), 'role', ['name'], unique=True)
+
+    # Create user table
+    op.create_table(
+        'user',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('email', sa.String(length=100), nullable=False),
+        sa.Column('username', sa.String(length=50), nullable=False),
+        sa.Column('first_name', sa.String(length=50), nullable=True),
+        sa.Column('last_name', sa.String(length=50), nullable=True),
+        sa.Column('hashed_password', sa.String(length=255), nullable=False),
+        sa.Column('is_active', sa.Boolean(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('updated_at', sa.DateTime(), nullable=True),
+        sa.Column('role_id', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['role_id'], ['role.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_user_email'), 'user', ['email'], unique=True)
+    op.create_index(op.f('ix_user_id'), 'user', ['id'], unique=False)
+    op.create_index(op.f('ix_user_username'), 'user', ['username'], unique=True)
+
+    # Create teacher table
+    op.create_table(
+        'teacher',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('teacher_id', sa.String(length=20), nullable=False),
+        sa.Column('date_of_birth', sa.Date(), nullable=True),
+        sa.Column('address', sa.String(length=255), nullable=True),
+        sa.Column('phone_number', sa.String(length=20), nullable=True),
+        sa.Column('department', sa.String(length=50), nullable=True),
+        sa.Column('hire_date', sa.Date(), nullable=True),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id'),
+        sa.UniqueConstraint('user_id')
+    )
+    op.create_index(op.f('ix_teacher_id'), 'teacher', ['id'], unique=False)
+    op.create_index(op.f('ix_teacher_teacher_id'), 'teacher', ['teacher_id'], unique=True)
+
+    # Create student table
+    op.create_table(
+        'student',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('student_id', sa.String(length=20), nullable=False),
+        sa.Column('date_of_birth', sa.Date(), nullable=True),
+        sa.Column('address', sa.String(length=255), nullable=True),
+        sa.Column('phone_number', sa.String(length=20), nullable=True),
+        sa.Column('grade_level', sa.String(length=20), nullable=True),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id'),
+        sa.UniqueConstraint('user_id')
+    )
+    op.create_index(op.f('ix_student_id'), 'student', ['id'], unique=False)
+    op.create_index(op.f('ix_student_student_id'), 'student', ['student_id'], unique=True)
+
+    # Create course table
+    op.create_table(
+        'course',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('course_code', sa.String(length=20), nullable=False),
+        sa.Column('title', sa.String(length=100), nullable=False),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('credits', sa.Integer(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), nullable=True),
+        sa.Column('teacher_id', sa.Integer(), nullable=True),
+        sa.ForeignKeyConstraint(['teacher_id'], ['teacher.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_course_course_code'), 'course', ['course_code'], unique=True)
+    op.create_index(op.f('ix_course_id'), 'course', ['id'], unique=False)
+
+    # Create class_enrollment table
+    op.create_table(
+        'classenrollment',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('enrollment_date', sa.DateTime(), nullable=True),
+        sa.Column('grade', sa.Float(), nullable=True),
+        sa.Column('semester', sa.String(length=20), nullable=False),
+        sa.Column('academic_year', sa.String(length=10), nullable=False),
+        sa.Column('student_id', sa.Integer(), nullable=False),
+        sa.Column('course_id', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['course_id'], ['course.id'], ),
+        sa.ForeignKeyConstraint(['student_id'], ['student.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_classenrollment_id'), 'classenrollment', ['id'], unique=False)
+
+
+def downgrade() -> None:
+    # Drop tables in reverse order of creation
+    op.drop_index(op.f('ix_classenrollment_id'), table_name='classenrollment')
+    op.drop_table('classenrollment')
+    
+    op.drop_index(op.f('ix_course_id'), table_name='course')
+    op.drop_index(op.f('ix_course_course_code'), table_name='course')
+    op.drop_table('course')
+    
+    op.drop_index(op.f('ix_student_student_id'), table_name='student')
+    op.drop_index(op.f('ix_student_id'), table_name='student')
+    op.drop_table('student')
+    
+    op.drop_index(op.f('ix_teacher_teacher_id'), table_name='teacher')
+    op.drop_index(op.f('ix_teacher_id'), table_name='teacher')
+    op.drop_table('teacher')
+    
+    op.drop_index(op.f('ix_user_username'), table_name='user')
+    op.drop_index(op.f('ix_user_id'), table_name='user')
+    op.drop_index(op.f('ix_user_email'), table_name='user')
+    op.drop_table('user')
+    
+    op.drop_index(op.f('ix_role_name'), table_name='role')
+    op.drop_index(op.f('ix_role_id'), table_name='role')
+    op.drop_table('role')

requirements.txt

@@ -0,0 +1,13 @@
+fastapi>=0.101.0
+uvicorn>=0.23.2
+pydantic>=2.0.0
+pydantic-settings>=2.0.0
+sqlalchemy>=2.0.0
+alembic>=1.12.0
+python-jose[cryptography]>=3.3.0
+passlib[bcrypt]>=1.7.4
+python-multipart>=0.0.6
+email-validator>=2.0.0
+ruff>=0.1.0
+pytest>=7.4.0
+httpx>=0.24.1