S18 - Meowtains

app/__init__.py

@@ -9,7 +9,6 @@
 migrate = Migrate()
 load_dotenv()
 
-
 def create_app():
     app = Flask(__name__)
     app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
@@ -18,6 +17,8 @@ def create_app():
         "SQLALCHEMY_DATABASE_URI")
 
     # Import models here for Alembic setup
+    from app.models.board import Board
+    from app.models.card import Card
     # from app.models.ExampleModel import ExampleModel
 
     db.init_app(app)
@@ -26,6 +27,8 @@ def create_app():
     # Register Blueprints here
     # from .routes import example_bp
     # app.register_blueprint(example_bp)
+    from .routes import board_bp
+    app.register_blueprint(board_bp)
 
     CORS(app)
     return app

app/models/board.py

@@ -1 +1,24 @@
 from app import db
+from app.models.card import Card
+
+class Board(db.Model):
+    board_id = db.Column(db.Integer, primary_key=True, autoincrement=True, nullable=False)
+    title = db.Column(db.String)
+    owner = db.Column(db.String)
+    cards = db.relationship('Card', back_populates='board')
+
+    def dictionfy(self):
+        board_info =  {
+            'id':self.board_id,
+            'title':self.title,
+            'owner':self.owner,
+            'cards':[]
+        }
+        for card in self.cards:
+            board_info['cards'].append(card.dictionfy())
+        return board_info
+
+    @classmethod
+    def create_board(cls,request_body):
+        return Board(title=request_body['title'], owner=request_body['owner'])
+

app/models/card.py

@@ -1 +1,19 @@
 from app import db
+
+class Card(db.Model):
+    card_id = db.Column(db.Integer, primary_key=True, autoincrement=True, nullable=False)
+    message = db.Column(db.String)
+    likes_count = db.Column(db.Integer, default=0)
+    board_id =  db.Column(db.Integer, db.ForeignKey('board.board_id'), default=None, nullable=False)
+    board=db.relationship('Board', back_populates='cards')
+
+    def dictionfy(self):
+        return {
+            'id':self.card_id,
+            'message':self.message,
+            'likes':self.likes_count
+        }
+
+    @classmethod
+    def create_card(cls,board_id,request_body):
+        return Card(message=request_body['message'],board_id=board_id)

app/routes.py

@@ -1,4 +1,76 @@
-from flask import Blueprint, request, jsonify, make_response
+from flask import Blueprint, request, jsonify, make_response,abort
+from app.models.board import Board
+from app.models.card import Card
 from app import db
 
-# example_bp = Blueprint('example_bp', __name__)
+board_bp = Blueprint('board_bp', __name__, url_prefix='/board')
+
+"""Board Routes"""
+@board_bp.route("", methods=['POST'])
+def add_one_board():
+    response_body = request.get_json()
+    try:
+        new_board = Board.create_board(response_body)
+    except KeyError:
+        return make_response(jsonify({'warning':'invalid title or owner'}),400)
+    db.session.add(new_board)
+    db.session.commit()
+
+    return make_response(jsonify({'msg':f'Board with id {new_board.board_id} created'}),201)
+
+@board_bp.route("", methods=['GET'])
+def get_all_boards():
+    boards=Board.query.all()
+    return_list=[]
+    for board in boards:
+        return_list.append(board.dictionfy())
+    return make_response(jsonify(return_list),200)
+
+@board_bp.route('/<board_id>', methods=['GET'])
+def get_one_board_with_cards(board_id):
+    board = validate_id(Board,board_id)
+    board_info = board.dictionfy()
+    return make_response(jsonify(board_info),200)
+
+"""Card Routes"""
+@board_bp.route('/<board_id>', methods=['POST'])
+def add_one_card(board_id):
+    request_body=request.get_json()
+
+    try:
+        new_card=Card.create_card(board_id,request_body)
+    except KeyError:
+        return make_response(jsonify({'warning':'invalid message'}),400)
+
+    db.session.add(new_card)
+    db.session.commit()
+
+    return make_response(jsonify({
+        'id':new_card.card_id,
+        'msg':f'Card created with id {new_card.card_id}'}),201)
+
+@board_bp.route('/<board_id>/<card_id>', methods=['PATCH','DELETE'])
+def modify_one_card(board_id, card_id):
+    card=validate_id(Card, card_id)
+    method_string = "deleted" if request.method == 'DELETE' else 'upvoted'
+
+    if request.method=='DELETE':
+        db.session.delete(card)
+    else:
+        card.likes_count+=1
+
+    db.session.commit()
+
+    return make_response(jsonify({'msg':f"card {card_id} {method_string} from Board with id {board_id}"}),200)
+
+"""Helper Functions"""
+def validate_id(cls,id):
+    try:
+        model_id = int(id)
+    except TypeError:
+        abort(make_response({'details':'Invalid, id must be integer'}),400)
+    model = cls.query.get(model_id)
+
+    if not model:
+        abort(make_response({'details':'ID is invalid'}),404)
+    return model

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()

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"}

migrations/versions/6090d125c0eb_.py

@@ -0,0 +1,30 @@
+"""empty message
+
+Revision ID: 6090d125c0eb
+Revises: 9c2454f722e1
+Create Date: 2023-01-03 10:53:29.190014
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '6090d125c0eb'
+down_revision = '9c2454f722e1'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('card', sa.Column('board_id', sa.Integer(), nullable=True))
+    op.create_foreign_key(None, 'card', 'board', ['board_id'], ['board_id'])
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'card', type_='foreignkey')
+    op.drop_column('card', 'board_id')
+    # ### end Alembic commands ###

migrations/versions/9c2454f722e1_.py

@@ -0,0 +1,40 @@
+"""empty message
+
+Revision ID: 9c2454f722e1
+Revises: 
+Create Date: 2022-12-22 13:52:14.051231
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9c2454f722e1'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('board',
+    sa.Column('board_id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('title', sa.String(), nullable=True),
+    sa.Column('owner', sa.String(), nullable=True),
+    sa.PrimaryKeyConstraint('board_id')
+    )
+    op.create_table('card',
+    sa.Column('card_id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('message', sa.String(), nullable=True),
+    sa.Column('likes_count', sa.Integer(), nullable=True),
+    sa.PrimaryKeyConstraint('card_id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('card')
+    op.drop_table('board')
+    # ### end Alembic commands ###