To Do list in Flask

migrations/README

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+Generic single-database configuration.

migrations/alembic.ini

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+# 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

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+from __future__ import with_statement
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+from logging.config import fileConfig
+
+# 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)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from flask import current_app
+config.set_main_option('sqlalchemy.url', current_app.config.get('SQLALCHEMY_DATABASE_URI'))
+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)
+
+    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.
+
+    """
+    engine = engine_from_config(
+                config.get_section(config.config_ini_section),
+                prefix='sqlalchemy.',
+                poolclass=pool.NullPool)
+
+    connection = engine.connect()
+    context.configure(
+                connection=connection,
+                target_metadata=target_metadata
+                )
+
+    try:
+        with context.begin_transaction():
+            context.run_migrations()
+    finally:
+        connection.close()
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
+

migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision}
+Create Date: ${create_date}
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

run.py

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+from flask.ext.script import Manager
+from flask.ext.migrate import Migrate, MigrateCommand
+from flask.ext.script.commands import ShowUrls, Clean
+
+from todo import app, db
+
+migrate = Migrate(app, db)
+manager = Manager(app)
+manager.add_command('db', MigrateCommand)
+manager.add_command('show-urls', ShowUrls())
+manager.add_command('clean', Clean())
+
+manager.run()

todo/__init__.py

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+from flask import Flask
+from flask.ext.sqlalchemy import SQLAlchemy
+
+DATABASE = '/tmp/to_dov2.db'
+DEBUG = True
+SECRET_KEY = 'development key'
+SQLALCHEMY_DATABASE_URI = 'sqlite:///' + DATABASE
+
+app = Flask(__name__)
+app.config.from_object(__name__)
+db = SQLAlchemy(app)
+
+from . import views

todo/forms.py

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+from flask_wtf import Form
+from wtforms import StringField
+from wtforms.validators import DataRequired
+
+class TodoForm(Form):
+    text = StringField('text', validators=[DataRequired()])

todo/models.py

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+from . import db
+
+class Users(db.Model):
+    username = db.Column(db.String(32), primary_key=True)
+    password = db.Column(db.String(120))
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+
+    def __repr__(self):
+        return "<User {}>".format(self.username)
+
+
+class ToDo(db.Model):
+
+    id = db.Column(db.Integer, primary_key=True)
+    owner = db.Column(db.String(32), db.ForeignKey(Users.username))
+    text = db.Column(db.String(255), nullable=False)
+    due_date = db.Column(db.DateTime)
+    completed_at = db.Column(db.DateTime)
+
+    def __init__(self, owner, text):
+        self.owner = owner
+        self.text = text
+
+    def __repr__(self):
+        return "<Todo {}>".format(self.text)
+
+class Notes(db.Model):
+
+    id = db.Column(db.Integer, primary_key=True)
+    owner = db.Column(db.String(32), nullable=False)
+    todo_reference = db.Column(db.Integer, db.ForeignKey(ToDo.id))
+    text = db.Column(db.String(255), nullable=False)
+
+    def __init__(owner, todo_reference, text):
+        self.owner = owner
+        self.todo_reference = todo_reference
+        self.text = text
+
+    def __repr__(self):
+        return "<Notes {}>".format(self.text)

todo/static/style.css

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+body            { font-family: sans-serif; background: #eee; }
+a               { color: #377ba8; }
+h1, h2, li      { color: #000; }
+h1, h2, li      { font-family: 'Georgia', serif; margin: 0; }
+h2, li          { font-size: 1.2em; }
+
+.page           { margin: 2em auto; width: 35em; border: 5px solid #ccc;
+                  padding: 0.8em; background: white; }
+.entries        { list-style: none; margin: 0; padding: 0; }
+.entries li     { margin: 0.8em 1.2em; }
+.entries li h2  { margin-left: 1em; }
+.add-entry      { font-size: 0.9em; border-bottom: 1px solid #ccc; }
+.add-entry dl   { font-weight: bold; }
+.metanav        { text-align: right; font-size: 0.8em; padding: 0.3em;
+                  margin-bottom: 1em; background: #fafafa; }
+.flash          { background: #cee5F5; padding: 0.5em;
+                  border: 1px solid #aacbe2; }
+.error          { background: #f0d6d6; padding: 0.5em; }
+
+div.ui-btn, button, input[type="submit"] {
+    /*width:60px;*/
+    background:#09C;
+    color:#fff;
+    font-family: Tahoma, Geneva, sans-serif;
+    /*height:20px;*/
+    -webkit-border-radius: 15px;
+    -moz-border-radius: 15px;
+    border-radius: 15px;
+    border: 1p solid #999;
+    margin-top: 2px
+}
+div.ui-btn, button:hover, input[type="submit"]:hover{
+    background:#cccccc;
+    color:#09C;
+}
+div.ui-btn, input[class="edit"] {
+    /*width:60px;*/
+    background:#cccccc;
+    color:#09C;
+    font-family: Tahoma, Geneva, sans-serif;
+    /*height:20px;*/
+    -webkit-border-radius: 15px;
+    -moz-border-radius: 15px;
+    border-radius: 15px;
+    border: 1p solid #999;
+    margin-top: 2px
+}

todo/templates/add_entry.html

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+{% extends "layout.html" %}
+{% block body %}
+    <form action="{{ url_for('add_entry') }}" method=POST class=add-entry>
+        <dl>
+            <dt>Add Task:
+            <dd><textarea name=todo rows=5 cols=40></textarea>
+            <dt>Deadline:
+            <dd><textarea name=date rows=1 cols=20></textarea>
+            <dd><input type=submit value=Add>
+        </dl>
+    </form>
+{% endblock %}

todo/templates/create_user.html

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+{% extends "layout.html" %}
+{% block body %}
+    <h2>Choose a username and password:</h2>
+    {% if error %}<p class=error><strong>Error:</strong>{{ error }}{% endif %}
+    <form action="{{ url_for('create_user') }}" method=POST>
+        <dl>
+            <dt>Username:
+            <dd><input type=text name=username>
+            <dt>Password:
+            <dd><input type=password name=password>
+            <dd><input type=submit value=Login>
+        </dl>
+    </form>
+    <a href="{{ url_for('login') }}">Return to login screen.</a>
+
+{% endblock %}

todo/templates/display_done.html

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+{% extends "layout.html" %}
+{% block body %}
+    <dl>
+        <dt>Finished Items:
+    </dl>
+    <ul class=entries>
+    {% for entry in entries %}
+        <li>{{ entry.text|safe }} </li>
+        <li>Completed on: {{ entry.completed_at }}</li>
+    {% else %}
+        <li>Nothing done yet!  Get to work!
+    </ul>
+    {% endfor %}
+{% endblock %}

todo/templates/index.html

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+{% extends "layout.html" %}
+{% block body %}
+    <h1>Please Select an Action:</h1>
+    <ul class="entries">
+        <li><button onclick="location.href='{{url_for('add_entry')}}'">Add Entry</button></li>
+        <li><button onclick="location.href='{{url_for('show_entries')}}'">See To Do List</button></li>
+        <li><button onclick="location.href='{{url_for('display_done')}}'">See Completed Tasks</button></li>
+    </ul>
+{% endblock %}

todo/templates/layout.html

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+<!doctype html>
+<head>
+    <title>To Do List</title>
+    <link rel=stylesheet type=text/css href="{{ url_for('static', filename='style.css') }}">
+</head>
+<div class=page>
+    <h1>To Do List:</h1>
+
+    <div class=metanav>
+        {% if request.path != "/" %}
+        <button onclick="location.href='{{url_for('main_menu')}}'">Home</button>
+        {% endif %}
+        {% if session.logged_in %}
+        <button onclick="location.href='{{url_for('logout')}}'">Log Out</button>
+        {% endif %}
+    </div>
+    {% for message in get_flashed_messages() %}
+        <div class=flash>{{ message }}</div>
+    {% endfor %}
+    {% block body %}
+    {% endblock %}
+</div>

todo/templates/login.html

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+{% extends "layout.html" %}
+{% block body %}
+    <h2>Login</h2>
+    {% if error %}<p class=error><strong>Error:</strong>{{ error }}{% endif %}
+    <form action="{{ url_for('login') }}" method=POST>
+        <dl>
+            <dt>Username:
+            <dd><input type=text name=username>
+            <dt>Password:
+            <dd><input type=password name=password>
+            <dd><input type=submit value=Login>
+        </dl>
+    </form>
+    <a href="{{ url_for('create_user') }}">Create Account!</a>
+{% endblock %}

todo/templates/show_entries.html

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+{% extends "layout.html" %}
+{% block body %}
+    <ul class=entries>
+    <form action="{{ url_for('remove_entry')}}" method=POST class=remove-entry>
+    {% for entry in entries %}
+        <li><input type=checkbox value={{ entry.id }} name=item>{{ entry.text|safe }}</input>  Deadline: {{ entry.due_date }}</li>
+    {% else %}
+        <li>Nothing to do!</li>
+    {% endfor %}
+    {% if entries %}
+        <li><input type=submit value=Remove></li>
+    {% endif %}
+    </form>
+    </ul>
+{% endblock %}