Checkpoint2

.gitignore

@@ -1,6 +1,39 @@
-# Python
+# Pyenv / Virtual Environment
+#.python-version
+.venv
+venv/
+
+# Byte-compiled / optimized / DLL files
 __pycache__/
+*.py[cod]
+*$py.class
+
+# Distribution / packaging
+dist/
+build/
+*.egg-info/
+*.egg
+.eggs/
+
+# Environment files
 .env
 
-# VS Code
+# Dependency cache
+pip-cache/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+
+# IDE files
+.idea/
 .vscode/
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw*
+
+# OS files
+._*
+*.DS_Store
+Thumbs.db

alembic.ini

@@ -0,0 +1,141 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = %(here)s/app/db/alembic
+
+# 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.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python>=3.9 or backports.zoneinfo library and tzdata library.
+# Any required deps can installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to ZoneInfo()
+# 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 <script_location>/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 "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# 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
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[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
+
+# lint with attempts to fix using "ruff" - use the exec runner, execute a binary
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = %(here)s/.venv/bin/ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+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/db/alembic/README

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+Generic single-database configuration.

app/db/alembic/env.py

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+import os
+import importlib
+from logging.config import fileConfig
+from sqlalchemy import engine_from_config, pool
+from alembic import context
+from dotenv import load_dotenv  
+
+# Load environment variables from .env file
+load_dotenv()
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+from app.db.base import Base
+
+def import_all_models():
+    # Correct the path to the models directory
+    models_dir = os.path.join(os.path.dirname(__file__), "../models")
+    models_dir = os.path.abspath(models_dir)  # Ensure it's an absolute path
+
+    for filename in os.listdir(models_dir):
+        if filename.endswith(".py") and filename != "__init__.py":
+            module_name = f"app.db.models.{filename[:-3]}"
+            importlib.import_module(module_name)
+
+# Import all models to register them with Base
+import_all_models()
+
+target_metadata = Base.metadata
+
+def get_db_url():
+    user = os.getenv("POSTGRES_USER")         
+    password = os.getenv("POSTGRES_PASSWORD") 
+    host = os.getenv("DB_HOST", "localhost")
+    port = os.getenv("DB_PORT", "5432")
+    dbname = os.getenv("POSTGRES_DB")         
+    driver = os.getenv("DB_DRIVER", "postgresql") 
+
+    return f"{driver}://{user}:{password}@{host}:{port}/{dbname}"
+
+
+def run_migrations_offline() -> None:
+    url = get_db_url()  # get URL from env variables
+    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:
+    # override the sqlalchemy.url config with env var URL
+    configuration = config.get_section(config.config_ini_section)
+    configuration["sqlalchemy.url"] = get_db_url()
+
+    connectable = engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

app/db/alembic/script.py.mako

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+"""${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:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

app/db/alembic/versions/075b701a1a93_initial_commit.py

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+"""initial commit
+
+Revision ID: 075b701a1a93
+Revises: 
+Create Date: 2025-05-27 12:47:03.592923
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '075b701a1a93'
+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:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###

app/db/crud/orders.py

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+from sqlalchemy.orm import Session
+from app.db.models.orders import Order
+
+def get_order_by_id(db: Session, order_id: int) -> Order | None:
+    return db.query(Order).filter(Order.id == order_id).first()
+
+def create_order(db: Session, user_id: int, total_amount, status: str = "pending") -> Order:
+    order = Order(user_id=user_id, total_amount=total_amount, status=status)
+    db.add(order)
+    db.commit()
+    db.refresh(order)
+    return order
+
+def get_orders_by_user_id(db: Session, user_id: int) -> list[Order]:
+    return db.query(Order).filter(Order.user_id == user_id).all()
+
+def delete_order_by_id(db: Session, order_id: int):
+    order = get_order_by_id(db, order_id)
+    if order:
+        db.delete(order)
+        db.commit()