Restructure + Migrations

.gitignore

@@ -1,6 +1,6 @@
 # Configs
-config/service-acct.json
+priceybot2/config/service-acct.json
-config/db.py
+priceybot2/config/db.py
 
 # Logs
 *.log

migrations/README

@@ -0,0 +1 @@
+Single-database configuration for Flask.

migrations/alembic.ini

@@ -0,0 +1,50 @@
+# 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,flask_migrate
+
+[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
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[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 +1,110 @@
+import logging
+from logging.config import fileConfig
+
+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')
+
+
+def get_engine():
+    try:
+        # this works with Flask-SQLAlchemy<3 and Alchemical
+        return current_app.extensions['migrate'].db.get_engine()
+    except TypeError:
+        # this works with Flask-SQLAlchemy>=3
+        return current_app.extensions['migrate'].db.engine
+
+
+def get_engine_url():
+    try:
+        return get_engine().url.render_as_string(hide_password=False).replace(
+            '%', '%%')
+    except AttributeError:
+        return str(get_engine().url).replace('%', '%%')
+
+
+# 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', get_engine_url())
+target_db = current_app.extensions['migrate'].db
+
+# 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 get_metadata():
+    if hasattr(target_db, 'metadatas'):
+        return target_db.metadatas[None]
+    return target_db.metadata
+
+
+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=get_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 = get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=get_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"}

priceybot2/__init__.py

@@ -1,17 +1,21 @@
 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 from flask_login import LoginManager
+from flask_migrate import Migrate
 from .config import db as db_config
 
 db = SQLAlchemy()
+migrate = Migrate()
 
 def create_app():
     app = Flask(__name__)
-
     app.config['SECRET_KEY'] = '//'
     app.config["SQLALCHEMY_DATABASE_URI"] = db_config.SQL_URI
 
+
     db.init_app(app)
+    migrate.init_app(app, db)
+
     login_manager = LoginManager()
     login_manager.login_view = 'auth.login'
     login_manager.init_app(app)
@@ -24,7 +28,6 @@ def create_app():
     
     from . import models
     with app.app_context():
-        print("Applying the DB models")
         db.create_all()
 
     # blueprint for auth routes in our app

priceybot2/chatbot.py

@@ -33,7 +33,7 @@ chatbot = Blueprint('chatbot', __name__)
 
 
 scopes = ['https://www.googleapis.com/auth/chat.bot']
-credentials = service_account.Credentials.from_service_account_file('./config/service-acct.json')
+credentials = service_account.Credentials.from_service_account_file('./priceybot2/config/service-acct.json')
 # credentials, project_id = google.auth.default()
 credentials = credentials.with_scopes(scopes=scopes)
 chat = build('chat', 'v1', credentials=credentials)

priceybot2/main.py

@@ -12,4 +12,4 @@ def index():
 @main.route('/profile')
 @login_required
 def profile():
-    return render_template('profile.html', name=current_user.name, google_id=current_user.google_id)
+    return render_template('profile.html', name=current_user.name, google_id=current_user.google_id, is_admin=current_user.administrator)

priceybot2/models.py

@@ -7,3 +7,5 @@ class User(UserMixin, db.Model):
     password = db.Column(db.String(100))
     name = db.Column(db.String(1000))
     google_id = db.Column(db.String(30), unique=True)
+    administrator = db.Column(db.Boolean, default=False)
+

priceybot2/templates/profile.html

@@ -0,0 +1,9 @@
+{% extends "base.html" %}
+
+{% block content %}
+<h1 class="title">
+	Welcome, {{ name }}! <p/>
+	Your google ID is {{ google_id }} <p/>
+	Admin?: {{ "yes" if is_admin else "no" }} <p/>
+</h1>
+{% endblock %}

requirements.txt

@@ -5,3 +5,4 @@ google
 mysqlclient
 flask-login
 flask_sqlalchemy
+Flask-Migrate

templates/profile.html

@@ -1,8 +0,0 @@
-{% extends "base.html" %}
-
-{% block content %}
-<h1 class="title">
-	Welcome, {{ name }}! <p>
-	Your google ID is {{ google_id }}
-</h1>
-{% endblock %}