diff --git a/app/__init__.py b/app/__init__.py index 70b4cabfe..91026f3c6 100644 --- a/app/__init__.py +++ b/app/__init__.py @@ -1,7 +1,30 @@ from flask import Flask +from flask_sqlalchemy import SQLAlchemy +from flask_migrate import Migrate +import os +from dotenv import load_dotenv +db = SQLAlchemy() +migrate = Migrate() +load_dotenv() def create_app(test_config=None): app = Flask(__name__) + if not test_config: + app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False + app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql+psycopg2://postgres:postgres@localhost:5432/solar_system_development' + else: + app.config["TESTING"] = True + app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False + app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get( + "SQLALCHEMY_TEST_DATABASE_URI") + + db.init_app(app) + migrate.init_app(app, db) + from app.models.planet import Planet + + from .routes import planets_bp + app.register_blueprint(planets_bp) + return app diff --git a/app/models/__init__.py b/app/models/__init__.py new file mode 100644 index 000000000..e69de29bb diff --git a/app/models/planet.py b/app/models/planet.py new file mode 100644 index 000000000..7fd67e993 --- /dev/null +++ b/app/models/planet.py @@ -0,0 +1,22 @@ +from app import db + +class Planet(db.Model): + id = db.Column(db.Integer, primary_key=True, autoincrement=True) + name = db.Column(db.String) + description = db.Column(db.String) + moons = db.Column(db.Integer) + + def to_dict(self): + return { + "id": self.id, + "name": self.name, + "description": self.description, + "moons": self.moons + } + + @classmethod + def from_dict(cls, data_dict): + return cls(name=data_dict["name"], + description=data_dict["description"], + moons=data_dict["moons"] + ) \ No newline at end of file diff --git a/app/routes.py b/app/routes.py index 8e9dfe684..0cb19b796 100644 --- a/app/routes.py +++ b/app/routes.py @@ -1,2 +1,73 @@ -from flask import Blueprint +from flask import Blueprint, jsonify, abort, make_response, request +from app.models.planet import Planet +from app import db +planets_bp = Blueprint("planets", __name__, url_prefix="/planets") + +@planets_bp.route("", methods=["POST"]) +def create_planet(): + request_body = request.get_json() + + new_planet = Planet.from_dict(request_body) + + db.session.add(new_planet) + db.session.commit() + + return jsonify_message(f"Planet {new_planet.name} successfully created", 201) + +@planets_bp.route("", methods=["GET"]) +def read_all_planets(): + name_query = request.args.get("name") + if name_query: + planets = Planet.query.filter_by(name=name_query) + else: + planets = Planet.query.all() + + planets_response = [planet.to_dict() for planet in planets] + return jsonify(planets_response) + + +@planets_bp.route("/", methods = ["GET"]) +def get_one_planet(planet_id): + planet = validate_planet(planet_id) + return jsonify(planet.to_dict()) + + +@planets_bp.route("/", methods = ["PUT"]) +def update_planet(planet_id): + request_body = request.get_json() + planet = validate_planet(planet_id) + + planet.name = request_body["name"] + planet.description = request_body["description"] + planet.moons = request_body["moons"] + + db.session.commit() + + return jsonify_message(f"Planet succesfully updated. {planet.to_dict()}") + + +@planets_bp.route("/", methods = ["DELETE"]) +def delete_planet(planet_id): + planet = validate_planet(planet_id) + + db.session.delete(planet) + db.session.commit() + + return jsonify_message("Planet succesfully deleted.", 200) + +def validate_planet(planet_id): + try: + planet_id = int(planet_id) + except: + abort(make_response({"message": f"invalid id {planet_id}"}, 400)) + + planet = Planet.query.get(planet_id) + + if not planet: + abort(make_response({"message": f"planet id {planet_id} not found"}, 404)) + return planet + + +def jsonify_message(message, status_code): + return make_response(jsonify(message),status_code) \ No newline at end of file diff --git a/migrations/README b/migrations/README new file mode 100644 index 000000000..98e4f9c44 --- /dev/null +++ b/migrations/README @@ -0,0 +1 @@ +Generic single-database configuration. \ No newline at end of file diff --git a/migrations/alembic.ini b/migrations/alembic.ini new file mode 100644 index 000000000..f8ed4801f --- /dev/null +++ b/migrations/alembic.ini @@ -0,0 +1,45 @@ +# A generic, single database configuration. + +[alembic] +# template used to generate migration files +# file_template = %%(rev)s_%%(slug)s + +# set to 'true' to run the environment during +# the 'revision' command, regardless of autogenerate +# revision_environment = false + + +# 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 diff --git a/migrations/env.py b/migrations/env.py new file mode 100644 index 000000000..8b3fb3353 --- /dev/null +++ b/migrations/env.py @@ -0,0 +1,96 @@ +from __future__ import with_statement + +import logging +from logging.config import fileConfig + +from sqlalchemy import engine_from_config +from sqlalchemy import pool +from flask import current_app + +from alembic import context + +# this is the Alembic Config object, which provides +# access to the values within the .ini file in use. +config = context.config + +# Interpret the config file for Python logging. +# This line sets up loggers basically. +fileConfig(config.config_file_name) +logger = logging.getLogger('alembic.env') + +# add your model's MetaData object here +# for 'autogenerate' support +# from myapp import mymodel +# target_metadata = mymodel.Base.metadata +config.set_main_option( + 'sqlalchemy.url', + str(current_app.extensions['migrate'].db.engine.url).replace('%', '%%')) +target_metadata = current_app.extensions['migrate'].db.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(): + """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 + ) + + with context.begin_transaction(): + context.run_migrations() + + +def run_migrations_online(): + """Run migrations in 'online' mode. + + In this scenario we need to create an Engine + and associate a connection with the context. + + """ + + # this callback is used to prevent an auto-migration from being generated + # when there are no changes to the schema + # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html + def process_revision_directives(context, revision, directives): + if getattr(config.cmd_opts, 'autogenerate', False): + script = directives[0] + if script.upgrade_ops.is_empty(): + directives[:] = [] + logger.info('No changes in schema detected.') + + connectable = engine_from_config( + config.get_section(config.config_ini_section), + prefix='sqlalchemy.', + poolclass=pool.NullPool, + ) + + with connectable.connect() as connection: + context.configure( + connection=connection, + target_metadata=target_metadata, + process_revision_directives=process_revision_directives, + **current_app.extensions['migrate'].configure_args + ) + + with context.begin_transaction(): + context.run_migrations() + + +if context.is_offline_mode(): + run_migrations_offline() +else: + run_migrations_online() diff --git a/migrations/script.py.mako b/migrations/script.py.mako new file mode 100644 index 000000000..2c0156303 --- /dev/null +++ b/migrations/script.py.mako @@ -0,0 +1,24 @@ +"""${message} + +Revision ID: ${up_revision} +Revises: ${down_revision | comma,n} +Create Date: ${create_date} + +""" +from alembic import op +import sqlalchemy as sa +${imports if imports else ""} + +# revision identifiers, used by Alembic. +revision = ${repr(up_revision)} +down_revision = ${repr(down_revision)} +branch_labels = ${repr(branch_labels)} +depends_on = ${repr(depends_on)} + + +def upgrade(): + ${upgrades if upgrades else "pass"} + + +def downgrade(): + ${downgrades if downgrades else "pass"} diff --git a/migrations/versions/97aca7ff74c7_adds_planet_model.py b/migrations/versions/97aca7ff74c7_adds_planet_model.py new file mode 100644 index 000000000..368ee4895 --- /dev/null +++ b/migrations/versions/97aca7ff74c7_adds_planet_model.py @@ -0,0 +1,34 @@ +"""adds Planet model + +Revision ID: 97aca7ff74c7 +Revises: +Create Date: 2022-04-29 14:25:01.866648 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '97aca7ff74c7' +down_revision = None +branch_labels = None +depends_on = None + + +def upgrade(): + # ### commands auto generated by Alembic - please adjust! ### + op.create_table('planet', + sa.Column('id', sa.Integer(), autoincrement=True, nullable=False), + sa.Column('name', sa.String(), nullable=True), + sa.Column('description', sa.String(), nullable=True), + sa.Column('moons', sa.Integer(), nullable=True), + sa.PrimaryKeyConstraint('id') + ) + # ### end Alembic commands ### + + +def downgrade(): + # ### commands auto generated by Alembic - please adjust! ### + op.drop_table('planet') + # ### end Alembic commands ###