Nicole W of Maple

app/__init__.py

@@ -30,5 +30,7 @@ def create_app(test_config=None):
     migrate.init_app(app, db)
 
     # Register Blueprints here
+    from .routes import tasks_bp
+    app.register_blueprint(tasks_bp)
 
     return app

app/models/task.py

@@ -3,4 +3,7 @@
 
 
 class Task(db.Model):
-    task_id = db.Column(db.Integer, primary_key=True)
+    task_id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    title = db.Column(db.String)
+    description = db.Column(db.String)
+    completed_at = db.Column(db.DateTime, nullable=True)

app/routes.py

@@ -1,2 +1,89 @@
-from flask import Blueprint
+from flask import Blueprint , jsonify, request , make_response
+from app import db
+from app.models.task import Task 
 
+tasks_bp = Blueprint("tasks", __name__ , url_prefix="/tasks")
+
+@tasks_bp.route("", methods =["POST","GET"])
+def manage_tasks():
+    if request.method == "POST":
+        request_body = request.get_json()
+        try:
+            new_task = Task(
+                title = request_body["title"],
+                description= request_body["description"],
+                completed_at = request_body["completed_at"]
+            )
+            #add new task before response body to get an id value
+            db.session.add(new_task)
+            db.session.commit()
+            response_body = {
+                "task":{
+                "id": new_task.task_id,
+                "title": new_task.title,
+                "description": new_task.description,
+                "is_complete": True if new_task.completed_at is not None else False
+                }
+            }
+            return jsonify(response_body), 201
+        except KeyError:
+            return {"details":"Invalid data"}, 400
+
+    elif request.method == "GET":
+        request_title = request.args.get("title")
+        if request_title: #if request_title
+            tasks = Task.query.filter_by(title=request_title)
+        else:
+            tasks = Task.query.all()
+        response = []
+        for task in tasks:
+            response.append({
+                "id": task.task_id,
+                "title": task.title,
+                "description": task.description,
+                "is_complete": False if task.completed_at is None else True
+            })
+        return jsonify(response)
+    pass
+
+
+@tasks_bp.route("/<task_id>", methods =["GET","PUT", "DELETE"])
+def manage_task(task_id):
+    task = Task.query.get(task_id)
+    if task == None:
+        return  make_response("", 404) 
+
+    if request.method == "GET":
+        response_body = {
+                "task":{
+                "id": task.task_id,
+                "title": task.title,
+                "description": task.description,
+                "is_complete": True if task.completed_at is not None else False
+                }
+            }
+        return jsonify(response_body), 200 
+
+    elif request.method == "PUT":
+        request_body = request.get_json()
+        task.title = request_body["title"]
+        task.description = request_body["description"]
+        # task.completed_at = request_body["completed_at"]
+        db.session.commit()
+        response_body = {
+                "task":{
+                "id": task.task_id,
+                "title": task.title,
+                "description": task.description,
+                "is_complete": True if task.completed_at is not None else False
+                }
+            }
+        return jsonify(response_body), 200
+
+    elif request.method == "DELETE":
+        db.session.delete(task)
+        db.session.commit()
+        response_body = {
+            "details":f"Task {task.task_id} \"{task.title}\" successfully deleted"
+        }
+        return jsonify(response_body), 200

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/b2c3d03fede8_added_task_model.py

@@ -0,0 +1,39 @@
+"""Added Task Model
+
+Revision ID: b2c3d03fede8
+Revises: 
+Create Date: 2021-11-04 02:33:04.101905
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'b2c3d03fede8'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('goal',
+    sa.Column('goal_id', sa.Integer(), nullable=False),
+    sa.PrimaryKeyConstraint('goal_id')
+    )
+    op.create_table('task',
+    sa.Column('task_id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('title', sa.String(), nullable=True),
+    sa.Column('description', sa.String(), nullable=True),
+    sa.Column('completed_at', sa.DateTime(), nullable=True),
+    sa.PrimaryKeyConstraint('task_id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('task')
+    op.drop_table('goal')
+    # ### end Alembic commands ###