Zoisite Z2- Muniba, Jackie, Johanna, Katherine

app/__init__.py

@@ -10,22 +10,31 @@
 load_dotenv()
 
 
-def create_app():
+def create_app(test_config=None):
     app = Flask(__name__)
     app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
 
-    app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
-        "SQLALCHEMY_DATABASE_URI")
-
-    # Import models here for Alembic setup
-    # from app.models.ExampleModel import ExampleModel
-
+    if test_config is None:
+        app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
+            "SQLALCHEMY_DATABASE_URI")
+        # app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
+        #     "RENDER_DATABASE_URI")
+    else:
+        app.config["TESTING"] = True
+        app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
+            "SQLALCHEMY_TEST_DATABASE_URI")
+
     db.init_app(app)
     migrate.init_app(app, db)
-
-    # Register Blueprints here
-    # from .routes import example_bp
-    # app.register_blueprint(example_bp)
+
+    from app.models.board import Board
+    from app.models.card import Card
+
+    from .board_routes import boards_bp
+    app.register_blueprint(boards_bp)
+
+    from .card_routes import cards_bp
+    app.register_blueprint(cards_bp)
 
     CORS(app)
     return app

app/board_routes.py

@@ -0,0 +1,83 @@
+from flask import Blueprint, request, jsonify, make_response, abort
+from app import db
+from app.models.board import Board
+from app.models.card import Card
+from app.helper import validate_model, validate_message
+
+boards_bp = Blueprint('boards', __name__, url_prefix='/boards')
+
+@boards_bp.route('', methods=['GET'])
+def get_all_boards():
+    boards = Board.query.all()
+
+    boards_response = [board.to_dict() for board in boards]
+
+    return jsonify(boards_response)
+
+@boards_bp.route('/<board_id>', methods=['GET'])
+def get_one_board(board_id):
+    board = validate_model(Board, board_id)
+
+    return jsonify(board.to_dict())
+
+@boards_bp.route('', methods=['POST'])
+def create_board():
+    request_body = request.get_json()
+
+    try:
+        new_board = Board.from_dict(request_body)
+
+        errors = []
+
+        if not new_board.title:
+            errors.append({"field": "title", "message": "Title is required"})
+
+        if not new_board.owner:
+            errors.append({"field": "owner", "message": "Owner is required"})
+
+        if errors:
+            return make_response(jsonify(errors=errors), 400)
+
+        db.session.add(new_board)
+        db.session.commit()
+
+        return make_response({'board': new_board.to_dict()}, 201)
+    except:
+        return make_response({'details': 'Invalid data'}, 400)
+
+@boards_bp.route('/<board_id>', methods=['DELETE'])
+def delete_board(board_id):
+    board_to_delete = validate_model(Board, board_id)
+
+    db.session.delete(board_to_delete)
+    db.session.commit()
+
+    message = f'Board {board_id} successfully deleted'
+    return make_response({"details": message}, 200)
+
+@boards_bp.route('/<board_id>/cards', methods=['POST'])
+def create_card(board_id):
+    board = validate_model(Board, board_id)
+    request_body = request.get_json()
+    message = request_body.get("message")
+
+    validated_message = validate_message(message)
+    if validated_message is not None:
+        return validated_message
+
+    card = Card(message=message, likes_count=0, board=board)
+
+    db.session.add(card)
+    db.session.commit()
+
+    return make_response(card.to_dict()), 201
+
+@boards_bp.route('/<board_id>/cards', methods=['GET'])
+def get_all_cards(board_id):
+    board = validate_model(Board, board_id)
+
+    cards = Card.query.filter_by(board=board)
+
+    cards_response = [card.to_dict() for card in cards]
+
+    return jsonify(cards_response)

app/card_routes.py

@@ -0,0 +1,53 @@
+from flask import Blueprint, request, jsonify, make_response, abort
+from app import db
+from app.models.card import Card
+from app.helper import validate_model, validate_message
+
+cards_bp = Blueprint('cards', __name__, url_prefix='/cards')
+
+@cards_bp.route("/<card_id>", methods=["DELETE"])
+def delete_card(card_id):
+    card_to_delete = validate_model(Card, card_id)
+
+    db.session.delete(card_to_delete)
+    db.session.commit()
+
+    message = f'Card {card_id} successfully deleted'
+    return make_response({"details": message}, 200)
+
+@cards_bp.route("/<card_id>/increase", methods=["PATCH"])
+def increase_likes(card_id):
+    card = validate_model(Card, card_id)
+
+    card.likes_count += 1
+
+    db.session.commit()
+    return jsonify(card.to_dict()), 200
+
+@cards_bp.route("/<card_id>/decrease", methods=["PATCH"])
+def decrease_likes(card_id):
+    card = validate_model(Card, card_id)
+
+    if card.likes_count > 0:
+        card.likes_count -= 1
+
+    db.session.commit()
+    return jsonify(card.to_dict())
+
+@cards_bp.route("/<card_id>", methods=["PATCH"])
+def update_card_message(card_id):
+    card = validate_model(Card, card_id)
+
+    new_message = request.json.get("message")
+
+    validated_new_message = validate_message(new_message)
+    if validated_new_message is not None:
+        return validated_new_message
+
+    card.message = new_message
+
+    db.session.commit()
+    return jsonify(card.to_dict()), 200
+
+
+

app/helper.py

@@ -0,0 +1,21 @@
+from flask import abort, make_response, jsonify
+
+def validate_model(cls, model_id):
+    try:
+        model_id = int(model_id)
+    except:
+        abort(make_response({'message':f'{cls.__name__} {model_id} invalid'}, 400))
+
+    model = cls.query.get(model_id)
+
+    if not model:
+        abort(make_response({'message':f'{cls.__name__} {model_id} not found'}, 404))
+
+    return model
+
+def validate_message(message):
+    if not message:
+        return make_response(jsonify(errors=[{"field": "cardMessage", "message": "Message is required"}]), 400)
+
+    if len(message) > 40:
+        return make_response(jsonify(errors=[{"field": "cardMessage", "message": "Message should not exceed 40 characters"}]), 400)

app/models/board.py

@@ -1 +1,21 @@
 from app import db
+
+class Board(db.Model):
+    board_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    title = db.Column(db.String)
+    owner = db.Column(db.String)
+    cards = db.relationship('Card', back_populates='board', lazy=True)
+
+    def to_dict(self):
+        return {
+            'board_id' : self.board_id,
+            'title' : self.title,
+            'owner' : self.owner
+        }
+
+    @classmethod
+    def from_dict(cls, data_dict):
+        return cls(
+            title = data_dict['title'],
+            owner = data_dict['owner'],
+        )

app/models/card.py

@@ -1 +1,16 @@
 from app import db
+
+class Card(db.Model):
+    card_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    message = db.Column(db.String)
+    likes_count = db.Column(db.Integer)
+    board_id = db.Column(db.Integer, db.ForeignKey('board.board_id'))
+    board = db.relationship('Board', back_populates='cards')
+
+    def to_dict(self):
+        return {
+            'card_id' : self.card_id,
+            'message' : self.message,
+            'likes_count' : self.likes_count
+        }
+

migrations/README

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

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

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()